Write each handler batch from its flush goroutine, outside the mutex (closes #65)

The AS, peer and prefix handlers wrote their batch to the database while
holding the mutex HandleMessage needs, and HandleMessage wrote a full batch
itself. For as long as a write took, the handler took nothing off its queue,
and the streamer dropped updates once the queue was half full.

Now only the flush goroutine writes: it takes the batch under the mutex,
releases it, then writes. A full batch wakes the flush goroutine instead.
Stop still writes what the handler holds.

While a write runs, the next batch has no size limit; the README memory
section says so.

Model: opus-5-5

README.md

@@ -141,10 +141,7 @@ routewatch/
 - **Batched Writes**: All database operations are batched for performance
 - **Backpressure**: Probabilistic message dropping when queues exceed 50% capacity
 - **Graceful Shutdown**: 60-second timeout, flushes all pending batches
-- **Reconnection**: Any end of the stream other than shutdown, including RIS Live
+- **Reconnection**: Exponential backoff (5s-320s) with reset after 30s of stable connection
-  ending the response normally, marks the feed disconnected and reconnects with
-  exponential backoff (5s-320s). The backoff resets after a stream that lasted
-  more than 30s. A stream with no line for 60s is dropped and reconnected.
 - **IP Lookup**: the most specific live route is found by looking up the
   address's prefix at each mask length, longest first, in the prefix index
   (at most 25 lookups for IPv4, 113 for IPv6); prefixes are stored in the
@@ -234,14 +231,9 @@ What happens at each limit:
 - Handler queues: each of the four handler queues holds at most 20,000 messages.
   When a queue fills, the streamer drops messages instead of blocking.
 - Handler batches: while the AS, peer or prefix handler writes a batch to the
-  database, the updates that arrive collect in its next batch, which stops at
+  database, the updates that arrive collect in its next batch, which has no size
-  ten times the batch size: 300,000 updates for the AS handler
+  limit. A database that stays slower than the feed grows memory instead of
-  (`asnBatchMaxSize`, about 10 MiB), 100,000 for the peer handler
+  dropping updates.
-  (`peerBatchMaxSize`, about 10 MiB) and 250,000 for the prefix handler
-  (`prefixBatchMaxSize`, about 60 MiB). At that size the handler takes nothing
-  more off its queue until the write ends, so the queue fills and the streamer
-  drops messages as above. With the batches being written, the three handlers'
-  batches take at most about 0.25 GiB of the Go heap's 1.5 GiB.
 
 With `DEBUG=routewatch` the daemon logs a `System stats` line every 60 seconds
 with the goroutine count and Go memory figures.

internal/database/counts_test.go

@@ -128,7 +128,7 @@ func TestLiveCountsTrackWritesInRealtime(t *testing.T) {
 
 	// A withdrawal removes one route.
 	if err := db.DeleteLiveRouteBatch([]LiveRouteDeletion{
-		{Prefix: "203.0.113.0/24", PeerIP: "192.0.2.1", IPVersion: ipVersionV4},
+		{Prefix: "203.0.113.0/24", OriginASN: 64501, PeerIP: "192.0.2.1", IPVersion: ipVersionV4},
 	}); err != nil {
 		t.Fatalf("DeleteLiveRouteBatch: %v", err)
 	}
@@ -327,11 +327,13 @@ func announceRoutes(db *Database, batch bool, routes []*LiveRoute) error {
 }
 
 // withdrawRoutes removes routes in one DeleteLiveRouteBatch, or with one
-// DeleteLiveRoute each.
+// DeleteLiveRoute each. It names each route by prefix and peer only, with no
+// origin ASN, as a withdrawal from the feed does when its message carries no AS
+// path.
 func withdrawRoutes(db *Database, batch bool, routes []*LiveRoute) error {
 	if !batch {
 		for _, route := range routes {
-			if err := db.DeleteLiveRoute(route.Prefix, route.PeerIP); err != nil {
+			if err := db.DeleteLiveRoute(route.Prefix, 0, route.PeerIP); err != nil {
 				return err
 			}
 		}

internal/database/database.go

@@ -8,7 +8,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"math/rand/v2"
 	"net"
 	"net/netip"
 	"os"
@@ -62,17 +61,6 @@ const (
 	sqliteHardHeapLimitBytes = 1610612736
 )
 
-// Bounds on the work GetRandomPrefixesByLength does to pick its sample.
-const (
-	// maxPrefixesToShuffle is the most prefixes of one mask length that are
-	// read in full and shuffled to pick the sample. A mask length with more is
-	// sampled with random lookups.
-	maxPrefixesToShuffle = 5000
-	// sampleLookupsPerPrefix is the most random lookups made for each prefix
-	// asked for.
-	sampleLookupsPerPrefix = 4
-)
-
 // Common errors
 var (
 	// ErrInvalidIP is returned when an IP address is malformed
@@ -240,22 +228,21 @@ func (d *Database) beginTx() (*loggingTx, error) {
 }
 
 // A live-route upsert is an UPDATE followed, only when no row matched, by an
-// INSERT. A live route is keyed by prefix and peer, so an announcement replaces
+// INSERT. The UPDATE's rows-affected count (1 for an existing key, 0 for a new
-// the peer's route for the prefix whatever its origin AS. The UPDATE's
+// one) is what lets the in-memory route counters stay exact without a COUNT(*).
-// rows-affected count (1 for an existing key, 0 for a new one) is what lets the
+// Callers hold the database write lock, so no other writer can insert the same
-// in-memory route counters stay exact without a COUNT(*). Callers hold the
+// key between the two statements. The id column is set only on INSERT, so an
-// database write lock, so no other writer can insert the same key between the
+// updated route keeps its original id, exactly as the previous ON CONFLICT
-// two statements. The id column is set only on INSERT, so an updated route
+// upsert did.
-// keeps its original id, exactly as the previous ON CONFLICT upsert did.
 const (
-	updateLiveRouteV4SQL = `UPDATE live_routes_v4 SET mask_length = ?, origin_asn = ?, as_path = ?,
+	updateLiveRouteV4SQL = `UPDATE live_routes_v4 SET mask_length = ?, as_path = ?, next_hop = ?,
-		next_hop = ?, last_updated = ? WHERE prefix = ? AND peer_ip = ?`
+		last_updated = ? WHERE prefix = ? AND origin_asn = ? AND peer_ip = ?`
 
 	insertLiveRouteV4SQL = `INSERT INTO live_routes_v4 (id, prefix, mask_length, origin_asn, peer_ip,
 		as_path, next_hop, last_updated) VALUES (?, ?, ?, ?, ?, ?, ?, ?)`
 
-	updateLiveRouteV6SQL = `UPDATE live_routes_v6 SET mask_length = ?, origin_asn = ?, as_path = ?,
+	updateLiveRouteV6SQL = `UPDATE live_routes_v6 SET mask_length = ?, as_path = ?, next_hop = ?,
-		next_hop = ?, last_updated = ? WHERE prefix = ? AND peer_ip = ?`
+		last_updated = ? WHERE prefix = ? AND origin_asn = ? AND peer_ip = ?`
 
 	insertLiveRouteV6SQL = `INSERT INTO live_routes_v6 (id, prefix, mask_length, origin_asn, peer_ip,
 		as_path, next_hop, last_updated) VALUES (?, ?, ?, ?, ?, ?, ?, ?)`
@@ -274,8 +261,8 @@ const (
 // live route for its prefix.
 func upsertRouteRowV4(upd, ins, has *sql.Stmt, route *LiveRoute, pathJSON string) (
 	inserted, newPrefix bool, err error) {
-	res, err := upd.Exec(route.MaskLength, route.OriginASN, pathJSON, route.NextHop, route.LastUpdated,
+	res, err := upd.Exec(route.MaskLength, pathJSON, route.NextHop, route.LastUpdated,
-		route.Prefix, route.PeerIP)
+		route.Prefix, route.OriginASN, route.PeerIP)
 	if err != nil {
 		return false, false, err
 	}
@@ -306,8 +293,8 @@ func upsertRouteRowV4(upd, ins, has *sql.Stmt, route *LiveRoute, pathJSON string
 // live route for its prefix.
 func upsertRouteRowV6(upd, ins, has *sql.Stmt, route *LiveRoute, pathJSON string) (
 	inserted, newPrefix bool, err error) {
-	res, err := upd.Exec(route.MaskLength, route.OriginASN, pathJSON, route.NextHop, route.LastUpdated,
+	res, err := upd.Exec(route.MaskLength, pathJSON, route.NextHop, route.LastUpdated,
-		route.Prefix, route.PeerIP)
+		route.Prefix, route.OriginASN, route.PeerIP)
 	if err != nil {
 		return false, false, err
 	}
@@ -454,18 +441,32 @@ func (d *Database) DeleteLiveRouteBatch(deletions []LiveRouteDeletion) error {
 		}
 	}()
 
-	// Prepare statements for both IPv4 and IPv6 tables
+	// No longer need to separate deletions since we handle them in the loop below
-	deleteV4, err := tx.Prepare(`DELETE FROM live_routes_v4 WHERE prefix = ? AND peer_ip = ?`)
-	if err != nil {
-		return fmt.Errorf("failed to prepare IPv4 delete statement: %w", err)
-	}
-	defer func() { _ = deleteV4.Close() }()
 
-	deleteV6, err := tx.Prepare(`DELETE FROM live_routes_v6 WHERE prefix = ? AND peer_ip = ?`)
+	// Prepare statements for both IPv4 and IPv6 tables
+	stmtV4WithOrigin, err := tx.Prepare(`DELETE FROM live_routes_v4 WHERE prefix = ? AND origin_asn = ? AND peer_ip = ?`)
 	if err != nil {
-		return fmt.Errorf("failed to prepare IPv6 delete statement: %w", err)
+		return fmt.Errorf("failed to prepare IPv4 delete with origin statement: %w", err)
 	}
-	defer func() { _ = deleteV6.Close() }()
+	defer func() { _ = stmtV4WithOrigin.Close() }()
+
+	stmtV4WithoutOrigin, err := tx.Prepare(`DELETE FROM live_routes_v4 WHERE prefix = ? AND peer_ip = ?`)
+	if err != nil {
+		return fmt.Errorf("failed to prepare IPv4 delete without origin statement: %w", err)
+	}
+	defer func() { _ = stmtV4WithoutOrigin.Close() }()
+
+	stmtV6WithOrigin, err := tx.Prepare(`DELETE FROM live_routes_v6 WHERE prefix = ? AND origin_asn = ? AND peer_ip = ?`)
+	if err != nil {
+		return fmt.Errorf("failed to prepare IPv6 delete with origin statement: %w", err)
+	}
+	defer func() { _ = stmtV6WithOrigin.Close() }()
+
+	stmtV6WithoutOrigin, err := tx.Prepare(`DELETE FROM live_routes_v6 WHERE prefix = ? AND peer_ip = ?`)
+	if err != nil {
+		return fmt.Errorf("failed to prepare IPv6 delete without origin statement: %w", err)
+	}
+	defer func() { _ = stmtV6WithoutOrigin.Close() }()
 
 	hasV4, err := tx.Prepare(prefixHasLiveRouteV4SQL)
 	if err != nil {
@@ -484,18 +485,38 @@ func (d *Database) DeleteLiveRouteBatch(deletions []LiveRouteDeletion) error {
 	// Mask lengths of the prefixes this batch leaves with no live route.
 	var gonePrefixMaskLengthsV4, gonePrefixMaskLengthsV6 []int
 	for _, del := range deletions {
-		stmt := deleteV4
+		var stmt *sql.Stmt
-		if del.IPVersion != ipVersionV4 {
+
-			stmt = deleteV6
+		// Select appropriate statement based on IP version and whether we have origin ASN
+		//nolint:nestif // Clear logic for selecting the right statement
+		if del.IPVersion == ipVersionV4 {
+			if del.OriginASN == 0 {
+				stmt = stmtV4WithoutOrigin
+			} else {
+				stmt = stmtV4WithOrigin
+			}
+		} else {
+			if del.OriginASN == 0 {
+				stmt = stmtV6WithoutOrigin
+			} else {
+				stmt = stmtV6WithOrigin
+			}
+		}
+
+		// Execute deletion
+		var res sql.Result
+		if del.OriginASN == 0 {
+			res, err = stmt.Exec(del.Prefix, del.PeerIP)
+		} else {
+			res, err = stmt.Exec(del.Prefix, del.OriginASN, del.PeerIP)
 		}
 
-		res, err := stmt.Exec(del.Prefix, del.PeerIP)
 		if err != nil {
 			return fmt.Errorf("failed to delete route %s: %w", del.Prefix, err)
 		}
 
-		// The feed often withdraws a route that is not live, which deletes
+		// A deletion with no origin ASN can remove several rows, so use the
-		// nothing, so the in-memory route counters use the rows-affected count.
+		// exact rows-affected count to keep the in-memory route counters right.
 		affected, err := res.RowsAffected()
 		if err != nil {
 			return fmt.Errorf("failed to count deleted route %s: %w", del.Prefix, err)
@@ -1261,8 +1282,9 @@ func (d *Database) UpsertLiveRoute(route *LiveRoute) error {
 	return nil
 }
 
-// DeleteLiveRoute deletes the live route the peer has for the prefix
+// DeleteLiveRoute deletes a live route
-func (d *Database) DeleteLiveRoute(prefix, peerIP string) error {
+// If originASN is 0, deletes all routes for the prefix/peer combination
+func (d *Database) DeleteLiveRoute(prefix string, originASN int, peerIP string) error {
 	d.lock("DeleteLiveRoute")
 	defer d.unlock()
 
@@ -1287,12 +1309,22 @@ func (d *Database) DeleteLiveRoute(prefix, peerIP string) error {
 	}()
 
 	// Literal per-table queries (rather than one formatted with the table name)
-	// so the delete carries no dynamically built SQL.
+	// so the delete carries no dynamically built SQL. A delete with no origin
+	// ASN can remove several rows.
 	var res sql.Result
-	if isV4 {
+	switch {
+	case isV4 && originASN == 0:
 		res, err = tx.Exec(`DELETE FROM live_routes_v4 WHERE prefix = ? AND peer_ip = ?`, prefix, peerIP)
-	} else {
+	case isV4:
+		res, err = tx.Exec(
+			`DELETE FROM live_routes_v4 WHERE prefix = ? AND origin_asn = ? AND peer_ip = ?`,
+			prefix, originASN, peerIP)
+	case originASN == 0:
 		res, err = tx.Exec(`DELETE FROM live_routes_v6 WHERE prefix = ? AND peer_ip = ?`, prefix, peerIP)
+	default:
+		res, err = tx.Exec(
+			`DELETE FROM live_routes_v6 WHERE prefix = ? AND origin_asn = ? AND peer_ip = ?`,
+			prefix, originASN, peerIP)
 	}
 	if err != nil {
 		return err
@@ -1600,17 +1632,16 @@ func (d *Database) GetASPeersContext(ctx context.Context, asn int) ([]ASPeer, er
 }
 
 // GetPrefixDetails returns detailed information about a prefix
-func (d *Database) GetPrefixDetails(prefix string) ([]LiveRoute, map[int]ASN, error) {
+func (d *Database) GetPrefixDetails(prefix string) ([]LiveRoute, error) {
 	return d.GetPrefixDetailsContext(context.Background(), prefix)
 }
 
-// GetPrefixDetailsContext returns the live routes for a prefix and, keyed by
+// GetPrefixDetailsContext returns detailed information about a prefix with context support
-// AS number, the handle and description of each AS that originates it.
+func (d *Database) GetPrefixDetailsContext(ctx context.Context, prefix string) ([]LiveRoute, error) {
-func (d *Database) GetPrefixDetailsContext(ctx context.Context, prefix string) ([]LiveRoute, map[int]ASN, error) {
 	// Determine if it's IPv4 or IPv6 by parsing the prefix
 	_, ipnet, err := net.ParseCIDR(prefix)
 	if err != nil {
-		return nil, nil, fmt.Errorf("invalid prefix format: %w", err)
+		return nil, fmt.Errorf("invalid prefix format: %w", err)
 	}
 
 	tableName := "live_routes_v4"
@@ -1632,12 +1663,11 @@ func (d *Database) GetPrefixDetailsContext(ctx context.Context, prefix string) (
 
 	rows, err := d.db.QueryContext(ctx, query, prefix)
 	if err != nil {
-		return nil, nil, fmt.Errorf("failed to query prefix details: %w", err)
+		return nil, fmt.Errorf("failed to query prefix details: %w", err)
 	}
 	defer func() { _ = rows.Close() }()
 
 	var routes []LiveRoute
-	origins := make(map[int]ASN)
 	for rows.Next() {
 		var route LiveRoute
 		var pathJSON string
@@ -1660,18 +1690,13 @@ func (d *Database) GetPrefixDetailsContext(ctx context.Context, prefix string) (
 		route.IPVersion = ipVersion
 		route.MaskLength, _ = ipnet.Mask.Size()
 		routes = append(routes, route)
-		origins[route.OriginASN] = ASN{
-			ASN:         route.OriginASN,
-			Handle:      handle.String,
-			Description: description.String,
-		}
 	}
 
 	if len(routes) == 0 {
-		return nil, nil, fmt.Errorf("%w: %s", ErrNoRoute, prefix)
+		return nil, fmt.Errorf("%w: %s", ErrNoRoute, prefix)
 	}
 
-	return routes, origins, nil
+	return routes, nil
 }
 
 // GetRandomPrefixesByLength returns a random sample of prefixes with the specified mask length
@@ -1679,189 +1704,45 @@ func (d *Database) GetRandomPrefixesByLength(maskLength, ipVersion, limit int) (
 	return d.GetRandomPrefixesByLengthContext(context.Background(), maskLength, ipVersion, limit)
 }
 
-// GetRandomPrefixesByLengthContext returns limit prefixes with the given mask
+// GetRandomPrefixesByLengthContext returns a random sample of prefixes with context support
-// length picked at random, or all of them when there are fewer, each once with
-// its most recently updated live route, for a limit up to
-// maxPrefixesToShuffle. However many routes there are, it makes at most
-// maxPrefixesToShuffle+1 index searches to list prefixes, at most
-// sampleLookupsPerPrefix random lookups for each prefix asked for, and one
-// index search for each listed prefix's newest route.
 func (d *Database) GetRandomPrefixesByLengthContext(
 	ctx context.Context, maskLength, ipVersion, limit int) ([]LiveRoute, error) {
+	// Select unique prefixes with their most recent route information
 	tableName := "live_routes_v4"
 	if ipVersion == ipVersionV6 {
 		tableName = "live_routes_v6"
 	}
 
-	// Reading one prefix more than maxPrefixesToShuffle tells whether these
-	// are all the prefixes with this mask length.
-	prefixes, err := d.firstPrefixesByLength(ctx, tableName, maskLength, maxPrefixesToShuffle+1)
-	if err != nil {
-		return nil, err
-	}
-	rand.Shuffle(len(prefixes), func(i, j int) {
-		prefixes[i], prefixes[j] = prefixes[j], prefixes[i]
-	})
-	if len(prefixes) > maxPrefixesToShuffle {
-		prefixes, err = d.samplePrefixesByLength(ctx, tableName, maskLength, limit, prefixes)
-		if err != nil {
-			return nil, err
-		}
-	}
-	prefixes = prefixes[:min(limit, len(prefixes))]
-
-	return d.newestRouteOfEachPrefix(ctx, tableName, ipVersion, prefixes)
-}
-
-// firstPrefixesByLength returns the first n prefixes, in text order, with the
-// given mask length. Each prefix is one search of the mask length and prefix
-// index for the prefix after the previous one, so the read does not grow with
-// the number of peers that carry a prefix, as a SELECT DISTINCT would.
-func (d *Database) firstPrefixesByLength(
-	ctx context.Context, tableName string, maskLength, n int) ([]string, error) {
 	//nolint:gosec // Table name is hardcoded based on IP version
 	query := fmt.Sprintf(`
-		SELECT prefix FROM %s
+		WITH unique_prefixes AS (
-		WHERE mask_length = ? AND prefix > ?
+			SELECT prefix, MAX(last_updated) as max_updated
-		ORDER BY prefix
+			FROM %s
-		LIMIT 1
+			WHERE mask_length = ?
-	`, tableName)
+			GROUP BY prefix
+			ORDER BY RANDOM()
+			LIMIT ?
+		)
+		SELECT lr.prefix, lr.mask_length, lr.origin_asn, lr.as_path, 
+			lr.peer_ip, lr.last_updated
+		FROM %s lr
+		INNER JOIN unique_prefixes up ON lr.prefix = up.prefix AND lr.last_updated = up.max_updated
+		WHERE lr.mask_length = ?
+	`, tableName, tableName)
 
-	stmt, err := d.db.PrepareContext(ctx, query)
+	rows, err := d.db.QueryContext(ctx, query, maskLength, limit, maskLength)
 	if err != nil {
-		return nil, fmt.Errorf("failed to prepare prefix query: %w", err)
+		return nil, fmt.Errorf("failed to query random prefixes: %w", err)
 	}
-	defer func() { _ = stmt.Close() }()
+	defer func() {
+		_ = rows.Close()
+	}()
 
-	var prefixes []string
+	var routes []LiveRoute
-	previous := "" // every prefix sorts after the empty string
+	for rows.Next() {
-	for len(prefixes) < n {
+		var route LiveRoute
-		var prefix string
-		err := stmt.QueryRowContext(ctx, maskLength, previous).Scan(&prefix)
-		if errors.Is(err, sql.ErrNoRows) {
-			break
-		}
-		if err != nil {
-			return nil, fmt.Errorf("failed to list prefixes: %w", err)
-		}
-		prefixes = append(prefixes, prefix)
-		previous = prefix
-	}
-
-	return prefixes, nil
-}
-
-// samplePrefixesByLength picks limit distinct prefixes with the given mask
-// length at random, in at most sampleLookupsPerPrefix lookups for each prefix
-// asked for. ORDER BY RANDOM() would read every route with that mask length.
-// Instead each lookup draws a row id between those of the first and last route
-// with that mask length and takes the prefix of the first such route at or
-// after it. SQLite keeps the row id at the end of every index entry, so the
-// mask length index is ordered by mask length, then row id, and the lookup is
-// one search of it.
-//
-// The sample is uneven, as the page needs a varied sample, not an even one: a
-// route is picked in proportion to the row ids between it and the previous
-// route with that mask length, including the row ids of routes with other mask
-// lengths and of withdrawn routes. A route that follows a long run of
-// withdrawn routes is picked far more often than one that directly follows
-// another route with that mask length.
-//
-// Should the lookups keep landing on prefixes already picked, the rest are
-// taken from shuffled, prefixes of that length in random order.
-func (d *Database) samplePrefixesByLength(
-	ctx context.Context, tableName string, maskLength, limit int, shuffled []string) ([]string, error) {
-	//nolint:gosec // Table name is hardcoded based on IP version
-	rangeQuery := fmt.Sprintf(`
-		SELECT
-			(SELECT MIN(rowid) FROM %[1]s WHERE mask_length = ?),
-			(SELECT MAX(rowid) FROM %[1]s WHERE mask_length = ?)
-	`, tableName)
-
-	var first, last sql.NullInt64
-	if err := d.db.QueryRowContext(ctx, rangeQuery, maskLength, maskLength).Scan(&first, &last); err != nil {
-		return nil, fmt.Errorf("failed to read row id range: %w", err)
-	}
-	if !first.Valid {
-		// Every route with this mask length was withdrawn since they were listed.
-		return nil, nil
-	}
-
-	//nolint:gosec // Table name is hardcoded based on IP version
-	lookupQuery := fmt.Sprintf(`
-		SELECT prefix FROM %s
-		WHERE mask_length = ? AND rowid >= ?
-		ORDER BY rowid
-		LIMIT 1
-	`, tableName)
-
-	stmt, err := d.db.PrepareContext(ctx, lookupQuery)
-	if err != nil {
-		return nil, fmt.Errorf("failed to prepare prefix lookup: %w", err)
-	}
-	defer func() { _ = stmt.Close() }()
-
-	picked := make(map[string]bool, limit)
-	prefixes := make([]string, 0, limit)
-	pick := func(prefix string) {
-		if !picked[prefix] {
-			picked[prefix] = true
-			prefixes = append(prefixes, prefix)
-		}
-	}
-
-	for lookups := 0; lookups < limit*sampleLookupsPerPrefix && len(prefixes) < limit; lookups++ {
-		//nolint:gosec // The sample needs variety, not unpredictability.
-		rowID := first.Int64 + rand.Int64N(last.Int64-first.Int64+1)
-
-		var prefix string
-		err := stmt.QueryRowContext(ctx, maskLength, rowID).Scan(&prefix)
-		if errors.Is(err, sql.ErrNoRows) {
-			// The routes from rowID on were withdrawn since the range was read.
-			continue
-		}
-		if err != nil {
-			return nil, fmt.Errorf("failed to look up prefix: %w", err)
-		}
-		pick(prefix)
-	}
-
-	for _, prefix := range shuffled {
-		if len(prefixes) == limit {
-			break
-		}
-		pick(prefix)
-	}
-
-	return prefixes, nil
-}
-
-// newestRouteOfEachPrefix returns the most recently updated live route of each
-// prefix, one search of the prefix and last_updated index per prefix however
-// many peers carry it. A prefix whose routes were all withdrawn since it was
-// picked is left out.
-func (d *Database) newestRouteOfEachPrefix(
-	ctx context.Context, tableName string, ipVersion int, prefixes []string) ([]LiveRoute, error) {
-	//nolint:gosec // Table name is hardcoded based on IP version
-	query := fmt.Sprintf(`
-		SELECT prefix, mask_length, origin_asn, as_path, peer_ip, last_updated
-		FROM %s
-		WHERE prefix = ?
-		ORDER BY last_updated DESC
-		LIMIT 1
-	`, tableName)
-
-	stmt, err := d.db.PrepareContext(ctx, query)
-	if err != nil {
-		return nil, fmt.Errorf("failed to prepare route query: %w", err)
-	}
-	defer func() { _ = stmt.Close() }()
-
-	routes := make([]LiveRoute, 0, len(prefixes))
-	for _, prefix := range prefixes {
-		route := LiveRoute{IPVersion: ipVersion}
 		var pathJSON string
-		err := stmt.QueryRowContext(ctx, prefix).Scan(
+		err := rows.Scan(
 			&route.Prefix,
 			&route.MaskLength,
 			&route.OriginASN,
@@ -1869,16 +1750,17 @@ func (d *Database) newestRouteOfEachPrefix(
 			&route.PeerIP,
 			&route.LastUpdated,
 		)
-		if errors.Is(err, sql.ErrNoRows) {
+		// Set IP version based on which table we queried
+		route.IPVersion = ipVersion
+		if err != nil {
 			continue
 		}
-		if err != nil {
-			return nil, fmt.Errorf("failed to query route of %s: %w", prefix, err)
-		}
 
+		// Decode AS path
 		if err := json.Unmarshal([]byte(pathJSON), &route.ASPath); err != nil {
 			route.ASPath = []int{}
 		}
+
 		routes = append(routes, route)
 	}
 

internal/database/database_test.go

@@ -6,7 +6,6 @@ import (
 	"errors"
 	"fmt"
 	"net/netip"
-	"slices"
 	"sync"
 	"testing"
 	"time"
@@ -14,7 +13,6 @@ import (
 	"git.eeqj.de/sneak/routewatch/internal/config"
 	"git.eeqj.de/sneak/routewatch/internal/logger"
 	"github.com/google/uuid"
-	"github.com/mattn/go-sqlite3"
 )
 
 // tempStoreMemory is the PRAGMA temp_store value meaning "hold temp B-trees in
@@ -47,32 +45,6 @@ const (
 	asnSecondBand = 100
 )
 
-// Parameters for the prefix-length sample tests.
-const (
-	// sampleLimit is how many prefixes the tests ask the sample for.
-	sampleLimit = 10
-	// sampledPrefixCount is how many prefixes the sampling test stores, more
-	// than sampleLimit so the sample has to choose among them.
-	sampledPrefixCount = 30
-	// secondV4PeerIP and secondV6PeerIP are the second peer each prefix is
-	// learned from, besides the one mkV4Route and mkV6Route set.
-	secondV4PeerIP = "192.0.2.2"
-	secondV6PeerIP = "2001:db8::2"
-	// largeSamplePrefixCount is how many prefixes the test of a mask length
-	// with more than maxPrefixesToShuffle prefixes stores: twice that, so about
-	// half of them come after the first maxPrefixesToShuffle+1 in text order.
-	largeSamplePrefixCount = 2 * maxPrefixesToShuffle
-	// largeSampleLimit is how many prefixes that test asks for. Each random
-	// lookup lands after the first maxPrefixesToShuffle+1 in text order about
-	// half the time, so none of them doing so is about as likely as
-	// largeSampleLimit coin tosses all coming up heads.
-	largeSampleLimit = 30
-	// liveRoutesV4Table and liveRoutesV6Table are the live route tables the
-	// tests pass to the sampling steps.
-	liveRoutesV4Table = "live_routes_v4"
-	liveRoutesV6Table = "live_routes_v6"
-)
-
 // TestGetIPInfoFindsMostSpecificLiveRoute stores nested live prefixes for both
 // families and checks that a lookup returns the most specific one covering the
 // address, ErrNoRoute when none covers it, and the next less specific prefix
@@ -150,8 +122,8 @@ func TestGetIPInfoFindsMostSpecificLiveRoute(t *testing.T) {
 	lookup("2001:db9::1", "")
 
 	err = db.DeleteLiveRouteBatch([]LiveRouteDeletion{
-		{Prefix: "10.1.2.0/24", PeerIP: testPeerIP, IPVersion: ipVersionV4},
+		{Prefix: "10.1.2.0/24", OriginASN: 64502, PeerIP: testPeerIP, IPVersion: ipVersionV4},
-		{Prefix: "2001:db8:1:2::/64", PeerIP: testPeerIP, IPVersion: ipVersionV6},
+		{Prefix: "2001:db8:1:2::/64", OriginASN: 64502, PeerIP: testPeerIP, IPVersion: ipVersionV6},
 	})
 	if err != nil {
 		t.Fatalf("DeleteLiveRouteBatch: %v", err)
@@ -233,40 +205,6 @@ func TestGetIPInfoIgnoresShortRoutes(t *testing.T) {
 	lookup("2001:db8::1", "2001:db8::/32", 64502)
 }
 
-// TestLiveRouteTablesHoldOneRoutePerPrefixAndPeer checks that each live route
-// table refuses a second route from a peer for a prefix, even with another
-// origin AS. An upsert updates the peer's route before it would insert one, so
-// only an insert straight into the table shows what the table allows.
-func TestLiveRouteTablesHoldOneRoutePerPrefixAndPeer(t *testing.T) {
-	db, err := New(&config.Config{StateDir: t.TempDir()}, logger.New())
-	if err != nil {
-		t.Fatalf("failed to create database: %v", err)
-	}
-	defer func() { _ = db.Close() }()
-
-	const otherOriginASN = 64501
-	ts := time.Date(2026, 1, 2, 3, 4, 5, 0, time.UTC)
-	for _, tt := range []struct {
-		route     *LiveRoute
-		insertSQL string
-	}{
-		{route: mkV4Route(t, "198.51.100.0/24", 64500, ts), insertSQL: insertLiveRouteV4SQL},
-		{route: mkV6Route("2001:db8::/32", 64500, ts), insertSQL: insertLiveRouteV6SQL},
-	} {
-		if err := db.UpsertLiveRoute(tt.route); err != nil {
-			t.Fatalf("UpsertLiveRoute(%s): %v", tt.route.Prefix, err)
-		}
-
-		_, err := db.db.Exec(tt.insertSQL, uuid.NewString(), tt.route.Prefix, tt.route.MaskLength,
-			otherOriginASN, tt.route.PeerIP, "[]", tt.route.NextHop, ts)
-		var sqliteErr sqlite3.Error
-		if !errors.As(err, &sqliteErr) || sqliteErr.ExtendedCode != sqlite3.ErrConstraintUnique {
-			t.Errorf("second route from peer %s for %s: error %v, want a UNIQUE constraint error",
-				tt.route.PeerIP, tt.route.Prefix, err)
-		}
-	}
-}
-
 // TestConnectionPoolPragmas holds several pooled connections open at once and
 // checks each one carries the per-connection settings from the DSN, plus the
 // process-wide hard heap limit, and sees the new file with auto_vacuum
@@ -368,6 +306,7 @@ func TestVacuumReturnsFreePages(t *testing.T) {
 		routes = append(routes, route)
 		deletions = append(deletions, LiveRouteDeletion{
 			Prefix:    route.Prefix,
+			OriginASN: asn,
 			PeerIP:    route.PeerIP,
 			IPVersion: ipVersionV4,
 		})
@@ -450,281 +389,3 @@ func TestBatchWriteDuringCheckpoint(t *testing.T) {
 	cancel()
 	wg.Wait()
 }
-
-// TestGetRandomPrefixesByLengthListsPrefixOnce stores one prefix of each
-// family learned from two peers in the same second and checks that the
-// prefix-length sample lists each of them once.
-func TestGetRandomPrefixesByLengthListsPrefixOnce(t *testing.T) {
-	cfg := &config.Config{StateDir: t.TempDir()}
-
-	db, err := New(cfg, logger.New())
-	if err != nil {
-		t.Fatalf("failed to create database: %v", err)
-	}
-	defer func() { _ = db.Close() }()
-
-	ts := time.Date(2026, 1, 2, 3, 4, 5, 0, time.UTC)
-	v4First := mkV4Route(t, "198.51.100.0/24", 64500, ts)
-	v4Second := mkV4Route(t, "198.51.100.0/24", 64500, ts)
-	v4Second.PeerIP = secondV4PeerIP
-	v6First := mkV6Route("2001:db8::/32", 64500, ts)
-	v6Second := mkV6Route("2001:db8::/32", 64500, ts)
-	v6Second.PeerIP = secondV6PeerIP
-	if err := db.UpsertLiveRouteBatch([]*LiveRoute{v4First, v4Second, v6First, v6Second}); err != nil {
-		t.Fatalf("UpsertLiveRouteBatch: %v", err)
-	}
-
-	for _, want := range []*LiveRoute{v4First, v6First} {
-		routes, err := db.GetRandomPrefixesByLength(want.MaskLength, want.IPVersion, sampleLimit)
-		if err != nil {
-			t.Fatalf("GetRandomPrefixesByLength(%d, %d): %v", want.MaskLength, want.IPVersion, err)
-		}
-		if len(routes) != 1 || routes[0].Prefix != want.Prefix {
-			t.Errorf("GetRandomPrefixesByLength(%d, %d) = %+v, want %s listed once",
-				want.MaskLength, want.IPVersion, routes, want.Prefix)
-		}
-	}
-}
-
-// TestGetRandomPrefixesByLengthListsNewestRoute stores a prefix learned from
-// two peers at different times, the older route first, and checks that the
-// prefix-length sample lists the newer route.
-func TestGetRandomPrefixesByLengthListsNewestRoute(t *testing.T) {
-	cfg := &config.Config{StateDir: t.TempDir()}
-
-	db, err := New(cfg, logger.New())
-	if err != nil {
-		t.Fatalf("failed to create database: %v", err)
-	}
-	defer func() { _ = db.Close() }()
-
-	older := time.Date(2026, 1, 2, 3, 4, 5, 0, time.UTC)
-	olderRoute := mkV4Route(t, "198.51.100.0/24", 64500, older)
-	newerRoute := mkV4Route(t, "198.51.100.0/24", 64500, older.Add(time.Minute))
-	newerRoute.PeerIP = secondV4PeerIP
-	if err := db.UpsertLiveRouteBatch([]*LiveRoute{olderRoute, newerRoute}); err != nil {
-		t.Fatalf("UpsertLiveRouteBatch: %v", err)
-	}
-
-	routes, err := db.GetRandomPrefixesByLength(newerRoute.MaskLength, ipVersionV4, sampleLimit)
-	if err != nil {
-		t.Fatalf("GetRandomPrefixesByLength: %v", err)
-	}
-	if len(routes) != 1 || routes[0].PeerIP != newerRoute.PeerIP {
-		t.Errorf("GetRandomPrefixesByLength = %+v, want only the newer route, from %s",
-			routes, newerRoute.PeerIP)
-	}
-}
-
-// TestGetRandomPrefixesByLengthSamplesManyPrefixes stores more /24 prefixes
-// than the sample asks for, each followed by a /16 so that routes of another
-// mask length sit between the /24 rows, and each prefix learned from two peers
-// in the same second. It checks both the sample the pages get, picked from the
-// shuffled prefixes, and the random lookups used for a mask length with more
-// than maxPrefixesToShuffle prefixes.
-func TestGetRandomPrefixesByLengthSamplesManyPrefixes(t *testing.T) {
-	cfg := &config.Config{StateDir: t.TempDir()}
-
-	db, err := New(cfg, logger.New())
-	if err != nil {
-		t.Fatalf("failed to create database: %v", err)
-	}
-	defer func() { _ = db.Close() }()
-
-	ts := time.Date(2026, 1, 2, 3, 4, 5, 0, time.UTC)
-	var routes []*LiveRoute
-	var stored []string
-	for i := range sampledPrefixCount {
-		prefix := fmt.Sprintf("10.0.%d.0/24", i)
-		for _, p := range []string{prefix, fmt.Sprintf("172.%d.0.0/16", i)} {
-			first := mkV4Route(t, p, 64500, ts)
-			second := mkV4Route(t, p, 64500, ts)
-			second.PeerIP = secondV4PeerIP
-			routes = append(routes, first, second)
-		}
-		stored = append(stored, prefix)
-	}
-	if err := db.UpsertLiveRouteBatch(routes); err != nil {
-		t.Fatalf("UpsertLiveRouteBatch: %v", err)
-	}
-	slices.Sort(stored)
-
-	maskLength := routes[0].MaskLength
-	sample, err := db.GetRandomPrefixesByLength(maskLength, ipVersionV4, sampleLimit)
-	if err != nil {
-		t.Fatalf("GetRandomPrefixesByLength: %v", err)
-	}
-	var listed []string
-	for _, route := range sample {
-		listed = append(listed, route.Prefix)
-	}
-	checkPrefixSample(t, "GetRandomPrefixesByLength", listed, stored)
-
-	looked, err := db.samplePrefixesByLength(
-		context.Background(), liveRoutesV4Table, maskLength, sampleLimit, nil)
-	if err != nil {
-		t.Fatalf("samplePrefixesByLength: %v", err)
-	}
-	checkPrefixSample(t, "samplePrefixesByLength", looked, stored)
-}
-
-// checkPrefixSample checks that sample lists sampleLimit prefixes, each once
-// and each one of stored, and that it is not just the first sampleLimit of
-// stored, which is in text order.
-func checkPrefixSample(t *testing.T, name string, sample, stored []string) {
-	t.Helper()
-
-	if len(sample) != sampleLimit {
-		t.Errorf("%s listed %d prefixes, want %d", name, len(sample), sampleLimit)
-	}
-	listed := make(map[string]bool)
-	for _, prefix := range sample {
-		if listed[prefix] || !slices.Contains(stored, prefix) {
-			t.Errorf("%s lists %s twice or it is not one of the /24s", name, prefix)
-		}
-		listed[prefix] = true
-	}
-	if slices.Equal(slices.Sorted(slices.Values(sample)), stored[:sampleLimit]) {
-		t.Errorf("%s lists just the first %d prefixes in text order", name, sampleLimit)
-	}
-}
-
-// TestGetRandomPrefixesByLengthSamplesPastFirstPrefixes stores more prefixes
-// of one mask length than maxPrefixesToShuffle. It checks that
-// firstPrefixesByLength reads just the first maxPrefixesToShuffle+1 in text
-// order, and that the sample lists the prefixes asked for, each once, some of
-// them after those first ones, which only the random lookups reach.
-func TestGetRandomPrefixesByLengthSamplesPastFirstPrefixes(t *testing.T) {
-	cfg := &config.Config{StateDir: t.TempDir()}
-
-	db, err := New(cfg, logger.New())
-	if err != nil {
-		t.Fatalf("failed to create database: %v", err)
-	}
-	defer func() { _ = db.Close() }()
-
-	ts := time.Date(2026, 1, 2, 3, 4, 5, 0, time.UTC)
-	var routes []*LiveRoute
-	var stored []string
-	for i := range largeSamplePrefixCount {
-		route := mkV6Route(fmt.Sprintf("2001:%x::/32", i), 64500, ts)
-		routes = append(routes, route)
-		stored = append(stored, route.Prefix)
-	}
-	if err := db.UpsertLiveRouteBatch(routes); err != nil {
-		t.Fatalf("UpsertLiveRouteBatch: %v", err)
-	}
-	slices.Sort(stored)
-	firstPrefixes := stored[:maxPrefixesToShuffle+1]
-
-	maskLength := routes[0].MaskLength
-	read, err := db.firstPrefixesByLength(
-		context.Background(), liveRoutesV6Table, maskLength, maxPrefixesToShuffle+1)
-	if err != nil {
-		t.Fatalf("firstPrefixesByLength: %v", err)
-	}
-	if !slices.Equal(read, firstPrefixes) {
-		t.Errorf("firstPrefixesByLength read %d prefixes, want the first %d in text order",
-			len(read), len(firstPrefixes))
-	}
-
-	sample, err := db.GetRandomPrefixesByLength(maskLength, ipVersionV6, largeSampleLimit)
-	if err != nil {
-		t.Fatalf("GetRandomPrefixesByLength: %v", err)
-	}
-	if len(sample) != largeSampleLimit {
-		t.Errorf("GetRandomPrefixesByLength listed %d prefixes, want %d", len(sample), largeSampleLimit)
-	}
-	listed := make(map[string]bool)
-	pastFirstPrefixes := 0
-	for _, route := range sample {
-		if listed[route.Prefix] {
-			t.Errorf("GetRandomPrefixesByLength lists %s twice", route.Prefix)
-		}
-		listed[route.Prefix] = true
-		if !slices.Contains(firstPrefixes, route.Prefix) {
-			pastFirstPrefixes++
-		}
-	}
-	if pastFirstPrefixes == 0 {
-		t.Errorf("GetRandomPrefixesByLength lists only prefixes among the first %d in text order",
-			len(firstPrefixes))
-	}
-}
-
-// TestSamplePrefixesByLengthFillsUpFromShuffled stores a single prefix, so
-// every random lookup lands on it, and checks that the sample still lists
-// sampleLimit prefixes: the stored one, then the shuffled ones in order. The
-// stored prefix is the second shuffled one, so the fill-up must skip it.
-func TestSamplePrefixesByLengthFillsUpFromShuffled(t *testing.T) {
-	cfg := &config.Config{StateDir: t.TempDir()}
-
-	db, err := New(cfg, logger.New())
-	if err != nil {
-		t.Fatalf("failed to create database: %v", err)
-	}
-	defer func() { _ = db.Close() }()
-
-	var shuffled []string
-	for i := range sampledPrefixCount {
-		shuffled = append(shuffled, fmt.Sprintf("10.0.%d.0/24", i))
-	}
-	route := mkV4Route(t, shuffled[1], 64500, time.Date(2026, 1, 2, 3, 4, 5, 0, time.UTC))
-	if err := db.UpsertLiveRouteBatch([]*LiveRoute{route}); err != nil {
-		t.Fatalf("UpsertLiveRouteBatch: %v", err)
-	}
-
-	sample, err := db.samplePrefixesByLength(
-		context.Background(), liveRoutesV4Table, route.MaskLength, sampleLimit, shuffled)
-	if err != nil {
-		t.Fatalf("samplePrefixesByLength: %v", err)
-	}
-	want := append([]string{shuffled[1], shuffled[0]}, shuffled[2:sampleLimit]...)
-	if !slices.Equal(sample, want) {
-		t.Errorf("samplePrefixesByLength = %v, want %v", sample, want)
-	}
-}
-
-// TestGetRandomPrefixesByLengthSkipsWithdrawnRoutes withdraws a route after
-// storing it, as can happen between the steps of GetRandomPrefixesByLength. It
-// checks that the random lookups pick nothing for a mask length with no route
-// left, and that only the prefixes that still have a route get their newest
-// route listed.
-func TestGetRandomPrefixesByLengthSkipsWithdrawnRoutes(t *testing.T) {
-	cfg := &config.Config{StateDir: t.TempDir()}
-
-	db, err := New(cfg, logger.New())
-	if err != nil {
-		t.Fatalf("failed to create database: %v", err)
-	}
-	defer func() { _ = db.Close() }()
-
-	ts := time.Date(2026, 1, 2, 3, 4, 5, 0, time.UTC)
-	kept := mkV4Route(t, "198.51.100.0/24", 64500, ts)
-	withdrawn := mkV4Route(t, "172.16.0.0/16", 64500, ts)
-	if err := db.UpsertLiveRouteBatch([]*LiveRoute{kept, withdrawn}); err != nil {
-		t.Fatalf("UpsertLiveRouteBatch: %v", err)
-	}
-	if err := db.DeleteLiveRoute(withdrawn.Prefix, withdrawn.PeerIP); err != nil {
-		t.Fatalf("DeleteLiveRoute: %v", err)
-	}
-
-	ctx := context.Background()
-	sample, err := db.samplePrefixesByLength(
-		ctx, liveRoutesV4Table, withdrawn.MaskLength, sampleLimit, []string{withdrawn.Prefix})
-	if err != nil {
-		t.Fatalf("samplePrefixesByLength: %v", err)
-	}
-	if len(sample) != 0 {
-		t.Errorf("samplePrefixesByLength = %v, want none for a mask length with no route left", sample)
-	}
-
-	routes, err := db.newestRouteOfEachPrefix(
-		ctx, liveRoutesV4Table, ipVersionV4, []string{withdrawn.Prefix, kept.Prefix})
-	if err != nil {
-		t.Fatalf("newestRouteOfEachPrefix: %v", err)
-	}
-	if len(routes) != 1 || routes[0].Prefix != kept.Prefix {
-		t.Errorf("newestRouteOfEachPrefix = %+v, want only the route of %s", routes, kept.Prefix)
-	}
-}

internal/database/interface.go

@@ -55,7 +55,7 @@ type Store interface {
 	// Live route operations
 	UpsertLiveRoute(route *LiveRoute) error
 	UpsertLiveRouteBatch(routes []*LiveRoute) error
-	DeleteLiveRoute(prefix, peerIP string) error
+	DeleteLiveRoute(prefix string, originASN int, peerIP string) error
 	DeleteLiveRouteBatch(deletions []LiveRouteDeletion) error
 	GetPrefixDistribution() (ipv4 []PrefixDistribution, ipv6 []PrefixDistribution, err error)
 	GetPrefixDistributionContext(ctx context.Context) (ipv4 []PrefixDistribution, ipv6 []PrefixDistribution, err error)
@@ -76,8 +76,8 @@ type Store interface {
 	GetASDetailsContext(ctx context.Context, asn int) (*ASN, []LiveRoute, error)
 	GetASPeers(asn int) ([]ASPeer, error)
 	GetASPeersContext(ctx context.Context, asn int) ([]ASPeer, error)
-	GetPrefixDetails(prefix string) ([]LiveRoute, map[int]ASN, error)
+	GetPrefixDetails(prefix string) ([]LiveRoute, error)
-	GetPrefixDetailsContext(ctx context.Context, prefix string) ([]LiveRoute, map[int]ASN, error)
+	GetPrefixDetailsContext(ctx context.Context, prefix string) ([]LiveRoute, error)
 	GetRandomPrefixesByLength(maskLength, ipVersion, limit int) ([]LiveRoute, error)
 	GetRandomPrefixesByLengthContext(ctx context.Context, maskLength, ipVersion, limit int) ([]LiveRoute, error)
 

internal/database/models.go

@@ -114,6 +114,7 @@ type IPInfo struct {
 // LiveRouteDeletion represents parameters for deleting a live route
 type LiveRouteDeletion struct {
 	Prefix    string
+	OriginASN int
 	PeerIP    string
 	IPVersion int
 }

internal/database/schema.sql

@@ -107,7 +107,7 @@ CREATE TABLE IF NOT EXISTS live_routes_v4 (
 	as_path TEXT NOT NULL, -- JSON array
 	next_hop TEXT NOT NULL,
 	last_updated DATETIME NOT NULL,
-	UNIQUE(prefix, peer_ip) -- a peer has at most one route for a prefix
+	UNIQUE(prefix, origin_asn, peer_ip)
 );
 
 -- IPv6 routing table maintained by PrefixHandler
@@ -120,12 +120,11 @@ CREATE TABLE IF NOT EXISTS live_routes_v6 (
 	as_path TEXT NOT NULL, -- JSON array
 	next_hop TEXT NOT NULL,
 	last_updated DATETIME NOT NULL,
-	UNIQUE(prefix, peer_ip) -- a peer has at most one route for a prefix
+	UNIQUE(prefix, origin_asn, peer_ip)
 );
 
 -- Indexes for live_routes_v4 table
--- Finds a prefix's newest route in one search, whatever the number of peers.
+CREATE INDEX IF NOT EXISTS idx_live_routes_v4_prefix ON live_routes_v4(prefix);
-CREATE INDEX IF NOT EXISTS idx_live_routes_v4_prefix_last_updated ON live_routes_v4(prefix, last_updated);
 CREATE INDEX IF NOT EXISTS idx_live_routes_v4_mask_length ON live_routes_v4(mask_length);
 CREATE INDEX IF NOT EXISTS idx_live_routes_v4_origin_asn ON live_routes_v4(origin_asn);
 CREATE INDEX IF NOT EXISTS idx_live_routes_v4_last_updated ON live_routes_v4(last_updated);
@@ -133,8 +132,7 @@ CREATE INDEX IF NOT EXISTS idx_live_routes_v4_last_updated ON live_routes_v4(las
 CREATE INDEX IF NOT EXISTS idx_live_routes_v4_mask_prefix ON live_routes_v4(mask_length, prefix);
 
 -- Indexes for live_routes_v6 table
--- Finds a prefix's newest route in one search, whatever the number of peers.
+CREATE INDEX IF NOT EXISTS idx_live_routes_v6_prefix ON live_routes_v6(prefix);
-CREATE INDEX IF NOT EXISTS idx_live_routes_v6_prefix_last_updated ON live_routes_v6(prefix, last_updated);
 CREATE INDEX IF NOT EXISTS idx_live_routes_v6_mask_length ON live_routes_v6(mask_length);
 CREATE INDEX IF NOT EXISTS idx_live_routes_v6_origin_asn ON live_routes_v6(origin_asn);
 CREATE INDEX IF NOT EXISTS idx_live_routes_v6_last_updated ON live_routes_v6(last_updated);

internal/routewatch/app_integration_test.go

@@ -205,7 +205,7 @@ func (m *mockStore) UpsertLiveRoute(route *database.LiveRoute) error {
 }
 
 // DeleteLiveRoute mock implementation
-func (m *mockStore) DeleteLiveRoute(prefix, peerIP string) error {
+func (m *mockStore) DeleteLiveRoute(prefix string, originASN int, peerIP string) error {
 	// Simple mock - just return nil
 	return nil
 }
@@ -252,15 +252,13 @@ func (m *mockStore) GetASDetailsContext(ctx context.Context, asn int) (*database
 }
 
 // GetPrefixDetails mock implementation
-func (m *mockStore) GetPrefixDetails(prefix string) ([]database.LiveRoute, map[int]database.ASN, error) {
+func (m *mockStore) GetPrefixDetails(prefix string) ([]database.LiveRoute, error) {
 	// Return empty routes for now
-	return []database.LiveRoute{}, map[int]database.ASN{}, nil
+	return []database.LiveRoute{}, nil
 }
 
 // GetPrefixDetailsContext mock implementation with context support
-func (m *mockStore) GetPrefixDetailsContext(
+func (m *mockStore) GetPrefixDetailsContext(ctx context.Context, prefix string) ([]database.LiveRoute, error) {
-	ctx context.Context, prefix string,
-) ([]database.LiveRoute, map[int]database.ASN, error) {
 	return m.GetPrefixDetails(prefix)
 }
 

internal/routewatch/ashandler.go

@@ -19,12 +19,6 @@ const (
 	// asnBatchSize is the number of ASN operations to batch together
 	asnBatchSize = 30000
 
-	// asnBatchMaxSize is the most ASN operations the batch holds while the
-	// flush goroutine writes the previous one: ten batches, about 10 MiB
-	// (README "Memory"). At this size HandleMessage waits until the flush
-	// goroutine takes the batch.
-	asnBatchMaxSize = 300000
-
 	// asnBatchTimeout is the maximum time to wait before flushing a batch
 	// DO NOT reduce this timeout - larger batches are more efficient
 	asnBatchTimeout = 2 * time.Second
@@ -39,11 +33,10 @@ type ASHandler struct {
 	logger *logger.Logger
 
 	// Batching. mu guards batch only: the flush goroutine takes the batch
-	// under mu and writes it after releasing mu, so HandleMessage waits for
+	// under mu and writes it after releasing mu, so HandleMessage never
-	// a database write only while batch is at asnBatchMaxSize.
+	// waits for a database write.
 	mu          sync.Mutex
 	batch       []asnOp
-	batchTaken  sync.Cond     // signalled when the flush goroutine takes batch; its L is &mu
 	batchFullCh chan struct{} // wakes the flush goroutine when batch is full
 	lastFlush   time.Time     // used only by the flush goroutine
 	stopCh      chan struct{}
@@ -69,7 +62,6 @@ func NewASHandler(db database.Store, logger *logger.Logger) *ASHandler {
 		lastFlush:   time.Now(),
 		stopCh:      make(chan struct{}),
 	}
-	h.batchTaken.L = &h.mu
 
 	// Start the flush timer goroutine
 	h.wg.Add(1)
@@ -112,13 +104,6 @@ func (h *ASHandler) HandleMessage(msg *ristypes.RISMessage) {
 	h.mu.Lock()
 	defer h.mu.Unlock()
 
-	// While the batch is at its maximum size, wait until the flush goroutine
-	// takes it. Meanwhile the handler takes nothing off its queue, which
-	// fills, and the streamer drops messages for it.
-	for len(h.batch) >= asnBatchMaxSize {
-		h.batchTaken.Wait()
-	}
-
 	// Queue origin ASN operation
 	if originASN > 0 {
 		h.batch = append(h.batch, asnOp{
@@ -138,8 +123,7 @@ func (h *ASHandler) HandleMessage(msg *ristypes.RISMessage) {
 	}
 
 	// A full batch wakes the flush goroutine. If it is writing, the wake-up
-	// waits in batchFullCh and the batch keeps growing until the write ends
+	// waits in batchFullCh and the batch keeps growing until the write ends.
-	// or the batch reaches asnBatchMaxSize.
 	if len(h.batch) >= asnBatchSize {
 		select {
 		case h.batchFullCh <- struct{}{}:
@@ -183,7 +167,6 @@ func (h *ASHandler) takeBatch() []asnOp {
 	}
 	batch := h.batch
 	h.batch = make([]asnOp, 0, asnBatchSize)
-	h.batchTaken.Broadcast()
 
 	return batch
 }

internal/routewatch/batchwrite_test.go

@@ -11,24 +11,17 @@ import (
 	"git.eeqj.de/sneak/routewatch/internal/ristypes"
 )
 
-const (
+// handleMessageTimeout is how long a test waits for HandleMessage to return,
-	// handleMessageTimeout is how long a test waits for HandleMessage to
+// or for a write to start, before it fails.
-	// return, or for a write to start, before it fails.
+const handleMessageTimeout = 2 * time.Second
-	handleMessageTimeout = 2 * time.Second
-
-	// stillWaitingAfter is how long a test watches a HandleMessage that must
-	// wait. One that does not wait returns well within it.
-	stillWaitingAfter = 100 * time.Millisecond
-)
 
 // blockingStore is a mockStore whose batch writes for the AS, peer and prefix
-// handlers wait until the test calls releaseWrites. writeStarted is closed when
+// handlers wait until the test closes release. writeStarted is closed when the
-// the first of them starts. It records what each write was given.
+// first of them starts. It records what each write was given.
 type blockingStore struct {
 	*mockStore
 
 	release      chan struct{}
-	releaseOnce  sync.Once
 	writeStarted chan struct{}
 	startOnce    sync.Once
 
@@ -54,12 +47,6 @@ func (s *blockingStore) waitForRelease() {
 	<-s.release
 }
 
-// releaseWrites lets the held writes, and all later ones, finish. A second call
-// does nothing.
-func (s *blockingStore) releaseWrites() {
-	s.releaseOnce.Do(func() { close(s.release) })
-}
-
 func (s *blockingStore) UpsertLiveRouteBatch(routes []*database.LiveRoute) error {
 	s.waitForRelease()
 	s.mu.Lock()
@@ -109,16 +96,24 @@ func returnsInTime(f func()) bool {
 	}
 }
 
-// startBlockedWrite hands h the messages in fill, which fill its batch so that
+// handleWhileAWriteIsBlocked hands h the messages in fill, which fill its
-// the handler writes it to store, and waits until that write starts. store
+// batch so that the handler writes it to store, waits until the write starts,
-// holds it until the test calls releaseWrites.
+// and hands h the message extra while store holds the write. HandleMessage
-func startBlockedWrite(
+// must return each time. Then it lets the writes finish and stops h, which
+// writes what it holds.
+func handleWhileAWriteIsBlocked(
 	t *testing.T,
 	store *blockingStore,
-	h interface{ HandleMessage(*ristypes.RISMessage) },
+	h interface {
+		HandleMessage(*ristypes.RISMessage)
+		Stop()
+	},
 	fill []*ristypes.RISMessage,
+	extra *ristypes.RISMessage,
 ) {
 	t.Helper()
+	defer h.Stop()
+	defer close(store.release)
 
 	if !returnsInTime(func() {
 		for _, msg := range fill {
@@ -133,98 +128,31 @@ func startBlockedWrite(
 	case <-time.After(handleMessageTimeout):
 		t.Fatal("the handler did not write its full batch")
 	}
-}
-
-// handleWhileAWriteIsBlocked starts a blocked write with the messages in fill
-// and hands h the message extra while store holds the write. HandleMessage must
-// return each time. Then it lets the writes finish and stops h, which writes
-// what it holds.
-func handleWhileAWriteIsBlocked(
-	t *testing.T,
-	store *blockingStore,
-	h interface {
-		HandleMessage(*ristypes.RISMessage)
-		Stop()
-	},
-	fill []*ristypes.RISMessage,
-	extra *ristypes.RISMessage,
-) {
-	t.Helper()
-	defer h.Stop()
-	defer store.releaseWrites()
-
-	startBlockedWrite(t, store, h, fill)
 
 	if !returnsInTime(func() { h.HandleMessage(extra) }) {
 		t.Fatal("HandleMessage did not return while a database write was blocked")
 	}
 }
 
-// handleAtMaxBatchSize starts a blocked write with the messages in fill, then,
-// while store holds the write, hands h the messages in toMax, which bring its
-// next batch to its maximum size, and the message extra. HandleMessage for
-// extra must wait until the test lets the write finish, and return after. Then
-// it stops h, which writes what it holds.
-func handleAtMaxBatchSize(
-	t *testing.T,
-	store *blockingStore,
-	h interface {
-		HandleMessage(*ristypes.RISMessage)
-		Stop()
-	},
-	fill, toMax []*ristypes.RISMessage,
-	extra *ristypes.RISMessage,
-) {
-	t.Helper()
-	defer h.Stop()
-	defer store.releaseWrites()
-
-	startBlockedWrite(t, store, h, fill)
-	for _, msg := range toMax {
-		h.HandleMessage(msg)
-	}
-
-	returned := make(chan struct{})
-	go func() {
-		h.HandleMessage(extra)
-		close(returned)
-	}()
-
-	select {
-	case <-returned:
-		t.Fatal("HandleMessage returned while the batch was at its maximum size and a write was blocked")
-	case <-time.After(stillWaitingAfter):
-	}
-
-	store.releaseWrites()
-	select {
-	case <-returned:
-	case <-time.After(handleMessageTimeout):
-		t.Fatal("HandleMessage did not return after the database write finished")
-	}
-}
-
-// prefixAnnouncement returns a message in which testPeerIP announces prefixes
-// with origin AS testASNA.
-func prefixAnnouncement(prefixes []string) *ristypes.RISMessage {
-	return &ristypes.RISMessage{
-		Peer:          testPeerIP,
-		Path:          ristypes.ASPath{testASNA},
-		Announcements: []ristypes.RISAnnouncement{{NextHop: testPeerIP, Prefixes: prefixes}},
-	}
-}
-
 func TestPrefixHandlerHandlesMessagesWhileAWriteIsBlocked(t *testing.T) {
 	const (
 		fillPrefix  = "192.0.2.0/24"
 		extraPrefix = "198.51.100.0/24"
 	)
 
+	announce := func(prefixes []string) *ristypes.RISMessage {
+		return &ristypes.RISMessage{
+			Peer:          testPeerIP,
+			Path:          ristypes.ASPath{testASNA},
+			Announcements: []ristypes.RISAnnouncement{{NextHop: testPeerIP, Prefixes: prefixes}},
+		}
+	}
+
 	store := newBlockingStore()
 	h := NewPrefixHandler(store, logger.New())
 	handleWhileAWriteIsBlocked(t, store, h,
-		[]*ristypes.RISMessage{prefixAnnouncement(slices.Repeat([]string{fillPrefix}, prefixBatchSize))},
+		[]*ristypes.RISMessage{announce(slices.Repeat([]string{fillPrefix}, prefixBatchSize))},
-		prefixAnnouncement([]string{extraPrefix}))
+		announce([]string{extraPrefix}))
 
 	store.mu.Lock()
 	defer store.mu.Unlock()
@@ -262,113 +190,3 @@ func TestPeerHandlerHandlesMessagesWhileAWriteIsBlocked(t *testing.T) {
 		t.Errorf("Stop did not write peer %s, handled while a write was blocked", otherPeerIP)
 	}
 }
-
-func TestPrefixHandlerWaitsAtTheMaximumBatchSize(t *testing.T) {
-	const (
-		fillPrefix  = "192.0.2.0/24"
-		extraPrefix = "198.51.100.0/24"
-	)
-
-	store := newBlockingStore()
-	h := NewPrefixHandler(store, logger.New())
-	handleAtMaxBatchSize(t, store, h,
-		[]*ristypes.RISMessage{prefixAnnouncement(slices.Repeat([]string{fillPrefix}, prefixBatchSize))},
-		[]*ristypes.RISMessage{prefixAnnouncement(slices.Repeat([]string{fillPrefix}, prefixBatchMaxSize))},
-		prefixAnnouncement([]string{extraPrefix}))
-
-	store.mu.Lock()
-	defer store.mu.Unlock()
-	if !store.prefixes[extraPrefix] {
-		t.Errorf("Stop did not write %s, handled after the batch reached its maximum size", extraPrefix)
-	}
-}
-
-func TestASHandlerWaitsAtTheMaximumBatchSize(t *testing.T) {
-	store := newBlockingStore()
-	h := NewASHandler(store, logger.New())
-	handleAtMaxBatchSize(t, store, h,
-		[]*ristypes.RISMessage{{Path: slices.Repeat(ristypes.ASPath{testASNA}, asnBatchSize)}},
-		[]*ristypes.RISMessage{{Path: slices.Repeat(ristypes.ASPath{testASNA}, asnBatchMaxSize)}},
-		&ristypes.RISMessage{Path: ristypes.ASPath{testASNB}})
-
-	store.mu.Lock()
-	defer store.mu.Unlock()
-	if !store.asns[testASNB] {
-		t.Errorf("Stop did not write AS%d, handled after the batch reached its maximum size", testASNB)
-	}
-}
-
-func TestPeerHandlerWaitsAtTheMaximumBatchSize(t *testing.T) {
-	const otherPeerIP = "2001:db8:ffff::2"
-
-	store := newBlockingStore()
-	h := NewPeerHandler(store, logger.New())
-	handleAtMaxBatchSize(t, store, h,
-		slices.Repeat([]*ristypes.RISMessage{{Peer: testPeerIP}}, peerBatchSize),
-		slices.Repeat([]*ristypes.RISMessage{{Peer: testPeerIP}}, peerBatchMaxSize),
-		&ristypes.RISMessage{Peer: otherPeerIP})
-
-	store.mu.Lock()
-	defer store.mu.Unlock()
-	if !store.peers[otherPeerIP] {
-		t.Errorf("Stop did not write peer %s, handled after the batch reached its maximum size", otherPeerIP)
-	}
-}
-
-// TestHandlersWakeTheFlushGoroutineWhenTheBatchIsFull hands each handler, built
-// without its flush goroutine so that nothing takes a wake-up, one update short
-// of a full batch, and a second one exactly a full batch. Only the full batch
-// leaves a wake-up in batchFullCh.
-func TestHandlersWakeTheFlushGoroutineWhenTheBatchIsFull(t *testing.T) {
-	tests := []struct {
-		name      string
-		batchSize int
-		// handle hands a new handler n updates and returns its batchFullCh.
-		handle func(n int) chan struct{}
-	}{
-		{
-			name:      "prefix",
-			batchSize: prefixBatchSize,
-			handle: func(n int) chan struct{} {
-				h := &PrefixHandler{batchFullCh: make(chan struct{}, 1)}
-				h.HandleMessage(prefixAnnouncement(slices.Repeat([]string{"192.0.2.0/24"}, n)))
-
-				return h.batchFullCh
-			},
-		},
-		{
-			name:      "AS",
-			batchSize: asnBatchSize,
-			handle: func(n int) chan struct{} {
-				h := &ASHandler{batchFullCh: make(chan struct{}, 1)}
-				// The origin AS and each AS in the path are one update each.
-				h.HandleMessage(&ristypes.RISMessage{Path: slices.Repeat(ristypes.ASPath{testASNA}, n-1)})
-
-				return h.batchFullCh
-			},
-		},
-		{
-			name:      "peer",
-			batchSize: peerBatchSize,
-			handle: func(n int) chan struct{} {
-				h := &PeerHandler{batchFullCh: make(chan struct{}, 1)}
-				for range n {
-					h.HandleMessage(&ristypes.RISMessage{Peer: testPeerIP})
-				}
-
-				return h.batchFullCh
-			},
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			if got := len(tt.handle(tt.batchSize - 1)); got != 0 {
-				t.Errorf("one update short of a full batch left %d wake-ups, want none", got)
-			}
-			if got := len(tt.handle(tt.batchSize)); got != 1 {
-				t.Errorf("a full batch left %d wake-ups, want 1", got)
-			}
-		})
-	}
-}

internal/routewatch/cli.go

@@ -20,8 +20,6 @@ const (
 	debugInterval = 60 * time.Second
 	// bytesPerMB is bytes per megabyte
 	bytesPerMB = 1024 * 1024
-	// failureExitCode is the exit status when RouteWatch stops on an error
-	failureExitCode = 1
 )
 
 // logDebugStats logs goroutine count and memory usage
@@ -85,9 +83,6 @@ func CLIEntry() {
 					go func() {
 						if err := rw.Run(ctx); err != nil {
 							logger.Error("RouteWatch error", "error", err)
-							if err := shutdowner.Shutdown(fx.ExitCode(failureExitCode)); err != nil {
-								logger.Error("Failed to shutdown gracefully", "error", err)
-							}
 						}
 					}()
 

internal/routewatch/peerhandler.go

@@ -23,12 +23,6 @@ const (
 	// peerBatchSize is the number of peer updates to batch together
 	peerBatchSize = 10000
 
-	// peerBatchMaxSize is the most peer updates the batch holds while the
-	// flush goroutine writes the previous one: ten batches, about 10 MiB
-	// (README "Memory"). At this size HandleMessage waits until the flush
-	// goroutine takes the batch.
-	peerBatchMaxSize = 100000
-
 	// peerBatchTimeout is the maximum time to wait before flushing a batch
 	peerBatchTimeout = 2 * time.Second
 )
@@ -42,11 +36,10 @@ type PeerHandler struct {
 	logger *logger.Logger
 
 	// Batching. mu guards peerBatch only: the flush goroutine takes the batch
-	// under mu and writes it after releasing mu, so HandleMessage waits for
+	// under mu and writes it after releasing mu, so HandleMessage never
-	// a database write only while peerBatch is at peerBatchMaxSize.
+	// waits for a database write.
 	mu          sync.Mutex
 	peerBatch   []peerUpdate
-	batchTaken  sync.Cond     // signalled when the flush goroutine takes peerBatch; its L is &mu
 	batchFullCh chan struct{} // wakes the flush goroutine when peerBatch is full
 	lastFlush   time.Time     // used only by the flush goroutine
 	stopCh      chan struct{}
@@ -73,7 +66,6 @@ func NewPeerHandler(db database.Store, logger *logger.Logger) *PeerHandler {
 		lastFlush:   time.Now(),
 		stopCh:      make(chan struct{}),
 	}
-	h.batchTaken.L = &h.mu
 
 	// Start the flush timer goroutine
 	h.wg.Add(1)
@@ -113,13 +105,6 @@ func (h *PeerHandler) HandleMessage(msg *ristypes.RISMessage) {
 	h.mu.Lock()
 	defer h.mu.Unlock()
 
-	// While the batch is at its maximum size, wait until the flush goroutine
-	// takes it. Meanwhile the handler takes nothing off its queue, which
-	// fills, and the streamer drops messages for it.
-	for len(h.peerBatch) >= peerBatchMaxSize {
-		h.batchTaken.Wait()
-	}
-
 	// Add to batch
 	h.peerBatch = append(h.peerBatch, peerUpdate{
 		peerIP:      msg.Peer,
@@ -129,8 +114,7 @@ func (h *PeerHandler) HandleMessage(msg *ristypes.RISMessage) {
 	})
 
 	// A full batch wakes the flush goroutine. If it is writing, the wake-up
-	// waits in batchFullCh and the batch keeps growing until the write ends
+	// waits in batchFullCh and the batch keeps growing until the write ends.
-	// or the batch reaches peerBatchMaxSize.
 	if len(h.peerBatch) >= peerBatchSize {
 		select {
 		case h.batchFullCh <- struct{}{}:
@@ -174,7 +158,6 @@ func (h *PeerHandler) takeBatch() []peerUpdate {
 	}
 	batch := h.peerBatch
 	h.peerBatch = make([]peerUpdate, 0, peerBatchSize)
-	h.batchTaken.Broadcast()
 
 	return batch
 }

internal/routewatch/prefixhandler.go

@@ -24,12 +24,6 @@ const (
 	// prefixBatchSize is the number of prefix updates to batch together
 	prefixBatchSize = 25000
 
-	// prefixBatchMaxSize is the most prefix updates the batch holds while the
-	// flush goroutine writes the previous one: ten batches, about 60 MiB
-	// (README "Memory"). At this size HandleMessage waits until the flush
-	// goroutine takes the batch.
-	prefixBatchMaxSize = 250000
-
 	// prefixBatchTimeout is the maximum time to wait before flushing a batch
 	// DO NOT reduce this timeout - larger batches are more efficient
 	prefixBatchTimeout = 1 * time.Second
@@ -47,11 +41,10 @@ type PrefixHandler struct {
 	metrics *metrics.Tracker
 
 	// Batching. mu guards batch only: the flush goroutine takes the batch
-	// under mu and writes it after releasing mu, so HandleMessage waits for
+	// under mu and writes it after releasing mu, so HandleMessage never
-	// a database write only while batch is at prefixBatchMaxSize.
+	// waits for a database write.
 	mu          sync.Mutex
 	batch       []prefixUpdate
-	batchTaken  sync.Cond     // signalled when the flush goroutine takes batch; its L is &mu
 	batchFullCh chan struct{} // wakes the flush goroutine when batch is full
 	lastFlush   time.Time     // used only by the flush goroutine
 	stopCh      chan struct{}
@@ -77,7 +70,6 @@ func NewPrefixHandler(db database.Store, logger *logger.Logger) *PrefixHandler {
 		lastFlush:   time.Now(),
 		stopCh:      make(chan struct{}),
 	}
-	h.batchTaken.L = &h.mu
 
 	// Start the flush timer goroutine
 	h.wg.Add(1)
@@ -117,24 +109,17 @@ func (h *PrefixHandler) HandleMessage(msg *ristypes.RISMessage) {
 	h.mu.Lock()
 	defer h.mu.Unlock()
 
-	// While the batch is at its maximum size, wait until the flush goroutine
-	// takes it. Meanwhile the handler takes nothing off its queue, which
-	// fills, and the streamer drops messages for it.
-	for len(h.batch) >= prefixBatchMaxSize {
-		h.batchTaken.Wait()
-	}
-
 	// Withdrawals are queued before announcements, because the batch keeps
 	// each peer's last update for a prefix: a message that lists a prefix as
 	// both withdrawn and announced keeps the route (RFC 4271 section 4.3).
-	// A withdrawal names only the prefix and peer: the message's AS path, and
-	// so its origin AS, belongs to the announced prefixes.
 	for _, prefix := range msg.Withdrawals {
 		h.batch = append(h.batch, prefixUpdate{
 			prefix:      canonicalPrefix(prefix),
+			originASN:   originASN, // Use the originASN from path if available
 			peer:        msg.Peer,
 			messageType: "withdrawal",
 			timestamp:   timestamp,
+			path:        msg.Path,
 		})
 		// Record withdrawal in metrics
 		if h.metrics != nil {
@@ -160,8 +145,7 @@ func (h *PrefixHandler) HandleMessage(msg *ristypes.RISMessage) {
 	}
 
 	// A full batch wakes the flush goroutine. If it is writing, the wake-up
-	// waits in batchFullCh and the batch keeps growing until the write ends
+	// waits in batchFullCh and the batch keeps growing until the write ends.
-	// or the batch reaches prefixBatchMaxSize.
 	if len(h.batch) >= prefixBatchSize {
 		select {
 		case h.batchFullCh <- struct{}{}:
@@ -205,7 +189,6 @@ func (h *PrefixHandler) takeBatch() []prefixUpdate {
 	}
 	batch := h.batch
 	h.batch = make([]prefixUpdate, 0, prefixBatchSize)
-	h.batchTaken.Broadcast()
 
 	return batch
 }
@@ -262,6 +245,7 @@ func (h *PrefixHandler) flushBatch() {
 			// Create deletion record for batch delete
 			routesToDelete = append(routesToDelete, database.LiveRouteDeletion{
 				Prefix:    update.prefix,
+				OriginASN: update.originASN,
 				PeerIP:    update.peer,
 				IPVersion: ipVersion,
 			})
@@ -463,24 +447,51 @@ func (h *PrefixHandler) processAnnouncementDirect(update prefixUpdate) {
 // processWithdrawalDirect handles removing a route directly without prefix table
 // nolint:unused // kept for potential future use
 func (h *PrefixHandler) processWithdrawalDirect(update prefixUpdate) {
-	if err := h.db.DeleteLiveRoute(update.prefix, update.peer); err != nil {
+	// For withdrawals, we need to delete the route from live_routes
-		h.logger.Error("Failed to delete live route",
+	if update.originASN > 0 {
-			"prefix", update.prefix,
+		if err := h.db.DeleteLiveRoute(update.prefix, update.originASN, update.peer); err != nil {
-			"peer", update.peer,
+			h.logger.Error("Failed to delete live route",
-			"error", err,
+				"prefix", update.prefix,
-		)
+				"origin_asn", update.originASN,
+				"peer", update.peer,
+				"error", err,
+			)
+		}
+	} else {
+		// If no origin ASN, just delete all routes for this prefix from this peer
+		if err := h.db.DeleteLiveRoute(update.prefix, 0, update.peer); err != nil {
+			h.logger.Error("Failed to delete live route (no origin ASN)",
+				"prefix", update.prefix,
+				"peer", update.peer,
+				"error", err,
+			)
+		}
 	}
 }
 
 // processWithdrawal handles removing a route from the live routing table
 // nolint:unused // kept for potential future use
 func (h *PrefixHandler) processWithdrawal(_ *database.Prefix, update prefixUpdate) {
-	if err := h.db.DeleteLiveRoute(update.prefix, update.peer); err != nil {
+	// For withdrawals, we need to delete the route from live_routes
-		h.logger.Error("Failed to delete live route",
+	// Since we have the origin ASN from the update, we can delete the specific route
-			"prefix", update.prefix,
+	if update.originASN > 0 {
-			"peer", update.peer,
+		if err := h.db.DeleteLiveRoute(update.prefix, update.originASN, update.peer); err != nil {
-			"error", err,
+			h.logger.Error("Failed to delete live route",
-		)
+				"prefix", update.prefix,
+				"origin_asn", update.originASN,
+				"peer", update.peer,
+				"error", err,
+			)
+		}
+	} else {
+		// If no origin ASN, just delete all routes for this prefix from this peer
+		if err := h.db.DeleteLiveRoute(update.prefix, 0, update.peer); err != nil {
+			h.logger.Error("Failed to delete live route (no origin ASN)",
+				"prefix", update.prefix,
+				"peer", update.peer,
+				"error", err,
+			)
+		}
 	}
 }
 

internal/routewatch/prefixhandler_test.go

@@ -3,7 +3,6 @@ package routewatch
 import (
 	"context"
 	"errors"
-	"fmt"
 	"slices"
 	"testing"
 	"time"
@@ -164,7 +163,7 @@ func TestPrefixHandlerAppliesEachPeersLastUpdateInABatch(t *testing.T) {
 			}
 
 			ctx := context.Background()
-			routes, _, err := db.GetPrefixDetailsContext(ctx, prefix)
+			routes, err := db.GetPrefixDetailsContext(ctx, prefix)
 			if err != nil && !errors.Is(err, database.ErrNoRoute) {
 				t.Fatalf("GetPrefixDetailsContext: %v", err)
 			}
@@ -176,153 +175,32 @@ func TestPrefixHandlerAppliesEachPeersLastUpdateInABatch(t *testing.T) {
 				t.Errorf("peers with a live route for %s = %v, want %v", prefix, gotPeers, tt.wantPeers)
 			}
 
+			stats, err := db.GetStatsContext(ctx)
+			if err != nil {
+				t.Fatalf("GetStatsContext: %v", err)
+			}
+			tableRoutesV4, _, err := db.GetLiveRouteCountsContext(ctx)
+			if err != nil {
+				t.Fatalf("GetLiveRouteCountsContext: %v", err)
+			}
+			if stats.IPv4Routes != len(tt.wantPeers) || tableRoutesV4 != len(tt.wantPeers) {
+				t.Errorf("IPv4 live routes: %d in memory, %d in the table, want %d",
+					stats.IPv4Routes, tableRoutesV4, len(tt.wantPeers))
+			}
+
 			var wantDistribution []database.PrefixDistribution
 			if len(tt.wantPeers) > 0 {
 				wantDistribution = []database.PrefixDistribution{{MaskLength: prefixMaskLength, Count: 1}}
 			}
-			assertCounts(t, db, ipv4Version, len(tt.wantPeers), wantDistribution)
+			queryDistributionV4, _, err := db.GetPrefixDistributionContext(ctx)
+			if err != nil {
+				t.Fatalf("GetPrefixDistributionContext: %v", err)
+			}
+			if !slices.Equal(stats.IPv4PrefixDistribution, wantDistribution) ||
+				!slices.Equal(queryDistributionV4, wantDistribution) {
+				t.Errorf("IPv4 prefix distribution: %v in memory, %v from the table, want %v",
+					stats.IPv4PrefixDistribution, queryDistributionV4, wantDistribution)
+			}
 		})
 	}
 }
-
-// TestPrefixHandlerKeepsOneRoutePerPrefixAndPeer runs updates from one peer
-// through the prefix handler into a real database, flushing each message as its
-// own batch, once with IPv4 prefixes and once with IPv6 prefixes. A peer has at
-// most one route for a prefix: a later announcement replaces it whatever its
-// origin AS, and a withdrawal removes it whatever AS the message's AS path ends
-// in. The in-memory route count and prefix distribution must match the route
-// table.
-func TestPrefixHandlerKeepsOneRoutePerPrefixAndPeer(t *testing.T) {
-	families := []struct {
-		ipVersion           int
-		prefix, otherPrefix string
-		// The mask length of both prefixes.
-		maskLength int
-	}{
-		{ipVersion: ipv4Version, prefix: "198.51.100.0/24", otherPrefix: "203.0.113.0/24", maskLength: 24},
-		{ipVersion: ipv6Version, prefix: "2001:db8:1::/48", otherPrefix: "2001:db8:2::/48", maskLength: 48},
-	}
-
-	ts := time.Date(2026, 1, 2, 3, 4, 5, 0, time.UTC)
-	announce := func(path ristypes.ASPath, announced string) *ristypes.RISMessage {
-		return &ristypes.RISMessage{
-			Peer:            testPeerIP,
-			Path:            path,
-			ParsedTimestamp: ts,
-			Announcements:   []ristypes.RISAnnouncement{{NextHop: testPeerIP, Prefixes: []string{announced}}},
-		}
-	}
-
-	for _, family := range families {
-		prefix, otherPrefix := family.prefix, family.otherPrefix
-
-		// One message that announces otherPrefix with origin AS testASNB and
-		// withdraws prefix.
-		announceOtherAndWithdraw := announce(ristypes.ASPath{testASNA, testASNB}, otherPrefix)
-		announceOtherAndWithdraw.Withdrawals = []string{prefix}
-
-		tests := []struct {
-			name     string
-			messages []*ristypes.RISMessage
-			// The origin AS of the peer's live route for each prefix. A prefix
-			// left out must have no live route.
-			wantOrigins map[string]int
-		}{
-			{
-				name: "the peer announces the prefix with a new origin AS",
-				messages: []*ristypes.RISMessage{
-					announce(ristypes.ASPath{testASNA}, prefix),
-					announce(ristypes.ASPath{testASNA, testASNB}, prefix),
-				},
-				wantOrigins: map[string]int{prefix: testASNB},
-			},
-			{
-				name: "one message announces a prefix with another origin AS and withdraws the prefix",
-				messages: []*ristypes.RISMessage{
-					announce(ristypes.ASPath{testASNA}, prefix),
-					announceOtherAndWithdraw,
-				},
-				wantOrigins: map[string]int{otherPrefix: testASNB},
-			},
-		}
-
-		for _, tt := range tests {
-			t.Run(fmt.Sprintf("IPv%d %s", family.ipVersion, tt.name), func(t *testing.T) {
-				db, err := database.New(&config.Config{StateDir: t.TempDir()}, logger.New())
-				if err != nil {
-					t.Fatalf("failed to create database: %v", err)
-				}
-				defer func() { _ = db.Close() }()
-
-				// Built without NewPrefixHandler's flush timer, so the test flushes itself.
-				h := &PrefixHandler{db: db, logger: logger.New()}
-				for _, msg := range tt.messages {
-					h.HandleMessage(msg)
-					h.flushBatch()
-				}
-
-				for _, p := range []string{prefix, otherPrefix} {
-					routes, _, err := db.GetPrefixDetailsContext(context.Background(), p)
-					if err != nil && !errors.Is(err, database.ErrNoRoute) {
-						t.Fatalf("GetPrefixDetailsContext(%s): %v", p, err)
-					}
-					var gotOrigins []int
-					for _, route := range routes {
-						gotOrigins = append(gotOrigins, route.OriginASN)
-					}
-					var wantOrigins []int
-					if origin, ok := tt.wantOrigins[p]; ok {
-						wantOrigins = []int{origin}
-					}
-					if !slices.Equal(gotOrigins, wantOrigins) {
-						t.Errorf("origin ASes of the live routes for %s = %v, want %v", p, gotOrigins, wantOrigins)
-					}
-				}
-
-				wantDistribution := []database.PrefixDistribution{
-					{MaskLength: family.maskLength, Count: len(tt.wantOrigins)},
-				}
-				assertCounts(t, db, family.ipVersion, len(tt.wantOrigins), wantDistribution)
-			})
-		}
-	}
-}
-
-// assertCounts checks that the live route count and prefix distribution of one
-// IP version are wantRoutes and wantDistribution, both as held in memory and as
-// read from the route table.
-func assertCounts(t *testing.T, db *database.Database, ipVersion, wantRoutes int,
-	wantDistribution []database.PrefixDistribution) {
-	t.Helper()
-
-	ctx := context.Background()
-	stats, err := db.GetStatsContext(ctx)
-	if err != nil {
-		t.Fatalf("GetStatsContext: %v", err)
-	}
-	tableRoutesV4, tableRoutesV6, err := db.GetLiveRouteCountsContext(ctx)
-	if err != nil {
-		t.Fatalf("GetLiveRouteCountsContext: %v", err)
-	}
-	queryDistributionV4, queryDistributionV6, err := db.GetPrefixDistributionContext(ctx)
-	if err != nil {
-		t.Fatalf("GetPrefixDistributionContext: %v", err)
-	}
-
-	memoryRoutes, tableRoutes := stats.IPv4Routes, tableRoutesV4
-	memoryDistribution, queryDistribution := stats.IPv4PrefixDistribution, queryDistributionV4
-	if ipVersion == ipv6Version {
-		memoryRoutes, tableRoutes = stats.IPv6Routes, tableRoutesV6
-		memoryDistribution, queryDistribution = stats.IPv6PrefixDistribution, queryDistributionV6
-	}
-
-	if memoryRoutes != wantRoutes || tableRoutes != wantRoutes {
-		t.Errorf("IPv%d live routes: %d in memory, %d in the table, want %d",
-			ipVersion, memoryRoutes, tableRoutes, wantRoutes)
-	}
-	if !slices.Equal(memoryDistribution, wantDistribution) ||
-		!slices.Equal(queryDistribution, wantDistribution) {
-		t.Errorf("IPv%d prefix distribution: %v in memory, %v from the table, want %v",
-			ipVersion, memoryDistribution, queryDistribution, wantDistribution)
-	}
-}

internal/server/handlers.go

@@ -198,24 +198,19 @@ func (s *Server) handleStatusJSON() http.HandlerFunc {
 		}()
 
 		var dbStats database.Stats
-		var err error
 		select {
 		case <-ctx.Done():
-			err = ctx.Err()
-		case err = <-errChan:
-		case dbStats = <-statsChan:
-		}
-		if deadlinePassed(ctx) {
 			s.logger.Error("Database stats timeout in status.json")
-			writeJSONError(w, http.StatusGatewayTimeout, requestTimeoutMessage)
+			writeJSONError(w, http.StatusRequestTimeout, "Database timeout")
 
 			return
-		}
+		case err := <-errChan:
-		if err != nil {
 			s.logger.Error("Failed to get database stats", "error", err)
 			writeJSONError(w, http.StatusInternalServerError, err.Error())
 
 			return
+		case dbStats = <-statsChan:
+			// Success
 		}
 
 		uptime := time.Since(metrics.ConnectedSince).Truncate(time.Second).String()
@@ -236,11 +231,6 @@ func (s *Server) handleStatusJSON() http.HandlerFunc {
 		var whoisStats *WHOISStatsInfo
 		if s.asnFetcher != nil {
 			whoisStats = s.getWHOISStats(ctx)
-			if deadlinePassed(ctx) {
-				writeJSONError(w, http.StatusGatewayTimeout, requestTimeoutMessage)
-
-				return
-			}
 		}
 
 		stats := Stats{
@@ -396,7 +386,7 @@ func (s *Server) handleStats() http.HandlerFunc {
 		// Check if context is already cancelled
 		select {
 		case <-ctx.Done():
-			writeJSONError(w, http.StatusGatewayTimeout, requestTimeoutMessage)
+			http.Error(w, "Request timeout", http.StatusRequestTimeout)
 
 			return
 		default:
@@ -422,24 +412,18 @@ func (s *Server) handleStats() http.HandlerFunc {
 		}()
 
 		var dbStats database.Stats
-		var err error
 		select {
 		case <-ctx.Done():
-			err = ctx.Err()
-		case err = <-errChan:
-		case dbStats = <-statsChan:
-		}
-		if deadlinePassed(ctx) {
 			s.logger.Error("Database stats timeout")
-			writeJSONError(w, http.StatusGatewayTimeout, requestTimeoutMessage)
+			// Don't write response here - timeout middleware already handles it
-
 			return
-		}
+		case err := <-errChan:
-		if err != nil {
 			s.logger.Error("Failed to get database stats", "error", err)
 			writeJSONError(w, http.StatusInternalServerError, err.Error())
 
 			return
+		case dbStats = <-statsChan:
+			// Success
 		}
 
 		uptime := time.Since(metrics.ConnectedSince).Truncate(time.Second).String()
@@ -478,11 +462,6 @@ func (s *Server) handleStats() http.HandlerFunc {
 		var whoisStats *WHOISStatsInfo
 		if s.asnFetcher != nil {
 			whoisStats = s.getWHOISStats(ctx)
-			if deadlinePassed(ctx) {
-				writeJSONError(w, http.StatusGatewayTimeout, requestTimeoutMessage)
-
-				return
-			}
 		}
 
 		// Calculate connection duration
@@ -634,11 +613,6 @@ func (s *Server) handleIPInfo() http.HandlerFunc {
 			} else {
 				// It's a hostname - resolve it
 				resolved, err := net.DefaultResolver.LookupHost(ctx, t)
-				if deadlinePassed(ctx) {
-					writeJSONError(w, http.StatusGatewayTimeout, requestTimeoutMessage)
-
-					return
-				}
 				if err != nil {
 					response.Errors = append(response.Errors, t+": "+err.Error())
 
@@ -660,11 +634,6 @@ func (s *Server) handleIPInfo() http.HandlerFunc {
 		// Look up each IP
 		for _, ip := range ipsToLookup {
 			ipInfo, err := s.db.GetIPInfoContext(ctx, ip)
-			if deadlinePassed(ctx) {
-				writeJSONError(w, http.StatusGatewayTimeout, requestTimeoutMessage)
-
-				return
-			}
 			if err != nil {
 				response.Errors = append(response.Errors, ip+": "+err.Error())
 
@@ -673,11 +642,6 @@ func (s *Server) handleIPInfo() http.HandlerFunc {
 
 			// Do PTR lookup for this IP
 			ptrs, err := net.DefaultResolver.LookupAddr(ctx, ip)
-			if deadlinePassed(ctx) {
-				writeJSONError(w, http.StatusGatewayTimeout, requestTimeoutMessage)
-
-				return
-			}
 			if err == nil && len(ptrs) > 0 {
 				// Remove trailing dots from PTR records
 				for i, ptr := range ptrs {
@@ -738,11 +702,6 @@ func (s *Server) handleASDetailJSON() http.HandlerFunc {
 		}
 
 		asInfo, prefixes, err := s.db.GetASDetailsContext(r.Context(), asn)
-		if deadlinePassed(r.Context()) {
-			writeJSONError(w, http.StatusGatewayTimeout, requestTimeoutMessage)
-
-			return
-		}
 		if err != nil {
 			if errors.Is(err, database.ErrNoRoute) {
 				writeJSONError(w, http.StatusNotFound, err.Error())
@@ -800,12 +759,7 @@ func (s *Server) handlePrefixDetailJSON() http.HandlerFunc {
 		}
 		prefix := parsed.Masked().String()
 
-		routes, _, err := s.db.GetPrefixDetailsContext(r.Context(), prefix)
+		routes, err := s.db.GetPrefixDetailsContext(r.Context(), prefix)
-		if deadlinePassed(r.Context()) {
-			writeJSONError(w, http.StatusGatewayTimeout, requestTimeoutMessage)
-
-			return
-		}
 		if err != nil {
 			if errors.Is(err, database.ErrNoRoute) {
 				writeJSONError(w, http.StatusNotFound, err.Error())
@@ -848,11 +802,6 @@ func (s *Server) handleASDetail() http.HandlerFunc {
 		}
 
 		asInfo, prefixes, err := s.db.GetASDetailsContext(r.Context(), asn)
-		if deadlinePassed(r.Context()) {
-			http.Error(w, requestTimeoutMessage, http.StatusGatewayTimeout)
-
-			return
-		}
 		if err != nil {
 			if errors.Is(err, database.ErrNoRoute) {
 				http.Error(w, "AS not found", http.StatusNotFound)
@@ -866,11 +815,6 @@ func (s *Server) handleASDetail() http.HandlerFunc {
 
 		// Get peers
 		peers, err := s.db.GetASPeersContext(r.Context(), asn)
-		if deadlinePassed(r.Context()) {
-			http.Error(w, requestTimeoutMessage, http.StatusGatewayTimeout)
-
-			return
-		}
 		if err != nil {
 			s.logger.Error("Failed to get AS peers", "error", err)
 			// Continue without peers rather than failing the whole request
@@ -986,12 +930,7 @@ func (s *Server) handlePrefixDetail() http.HandlerFunc {
 		}
 		prefix := parsed.Masked().String()
 
-		routes, originASNs, err := s.db.GetPrefixDetailsContext(r.Context(), prefix)
+		routes, err := s.db.GetPrefixDetailsContext(r.Context(), prefix)
-		if deadlinePassed(r.Context()) {
-			http.Error(w, requestTimeoutMessage, http.StatusGatewayTimeout)
-
-			return
-		}
 		if err != nil {
 			if errors.Is(err, database.ErrNoRoute) {
 				http.Error(w, "Prefix not found", http.StatusNotFound)
@@ -1013,10 +952,18 @@ func (s *Server) handlePrefixDetail() http.HandlerFunc {
 		originMap := make(map[int]*ASNInfo)
 		for _, route := range routes {
 			if _, exists := originMap[route.OriginASN]; !exists {
+				// Get AS info from database
+				asInfo, _, _ := s.db.GetASDetailsContext(r.Context(), route.OriginASN)
+				handle := ""
+				description := ""
+				if asInfo != nil {
+					handle = asInfo.Handle
+					description = asInfo.Description
+				}
 				originMap[route.OriginASN] = &ASNInfo{
 					ASN:         route.OriginASN,
-					Handle:      originASNs[route.OriginASN].Handle,
+					Handle:      handle,
-					Description: originASNs[route.OriginASN].Description,
+					Description: description,
 					PeerCount:   0,
 				}
 			}
@@ -1140,11 +1087,6 @@ func (s *Server) handlePrefixLength() http.HandlerFunc {
 		// Get random sample of prefixes
 		const maxPrefixes = 500
 		prefixes, err := s.db.GetRandomPrefixesByLengthContext(r.Context(), maskLength, ipVersion, maxPrefixes)
-		if deadlinePassed(r.Context()) {
-			http.Error(w, requestTimeoutMessage, http.StatusGatewayTimeout)
-
-			return
-		}
 		if err != nil {
 			s.logger.Error("Failed to get prefixes by length", "error", err)
 			http.Error(w, "Internal server error", http.StatusInternalServerError)
@@ -1236,11 +1178,6 @@ func (s *Server) handlePrefixLength6() http.HandlerFunc {
 		// Get random sample of prefixes
 		const maxPrefixes = 500
 		prefixes, err := s.db.GetRandomPrefixesByLengthContext(r.Context(), maskLength, ipVersion, maxPrefixes)
-		if deadlinePassed(r.Context()) {
-			http.Error(w, requestTimeoutMessage, http.StatusGatewayTimeout)
-
-			return
-		}
 		if err != nil {
 			s.logger.Error("Failed to get prefixes by length", "error", err)
 			http.Error(w, "Internal server error", http.StatusInternalServerError)

internal/server/handlers_test.go

@@ -3,13 +3,10 @@ package server
 import (
 	"context"
 	"encoding/json"
-	"errors"
-	"html"
 	"net/http"
 	"net/http/httptest"
 	"runtime"
 	"slices"
-	"strings"
 	"testing"
 	"time"
 
@@ -18,7 +15,6 @@ import (
 	"git.eeqj.de/sneak/routewatch/internal/logger"
 	"git.eeqj.de/sneak/routewatch/internal/metrics"
 	"git.eeqj.de/sneak/routewatch/internal/streamer"
-	"git.eeqj.de/sneak/routewatch/pkg/asinfo"
 	"github.com/google/uuid"
 )
 
@@ -204,323 +200,6 @@ func TestPrefixDetailHandlersParsePrefix(t *testing.T) {
 	}
 }
 
-// failingASDetailsDB wraps a real store and fails every AS details lookup.
-type failingASDetailsDB struct {
-	database.Store
-}
-
-func (failingASDetailsDB) GetASDetailsContext(_ context.Context, _ int) (*database.ASN, []database.LiveRoute, error) {
-	return nil, nil, errors.New("AS details lookup failed")
-}
-
-// TestPrefixDetailShowsOriginNames checks that the prefix page shows each
-// origin AS's handle and description without looking up the AS's details,
-// which also read every route the AS originates. Before the fix the page did
-// that lookup once per origin, so with it failing the names were missing
-// (https://git.eeqj.de/sneak/routewatch/issues/67). The AS path column shows
-// handles too, so the test looks for the origin list's "(handle)" form.
-func TestPrefixDetailShowsOriginNames(t *testing.T) {
-	db, err := database.New(&config.Config{StateDir: t.TempDir()}, logger.New())
-	if err != nil {
-		t.Fatalf("database.New: %v", err)
-	}
-	t.Cleanup(func() { _ = db.Close() })
-
-	ts := time.Date(2026, 1, 2, 3, 4, 5, 0, time.UTC)
-	origins := []int{15169, 13335}
-	for _, asn := range origins {
-		if _, err := db.GetOrCreateASN(asn, ts); err != nil {
-			t.Fatalf("GetOrCreateASN(%d): %v", asn, err)
-		}
-	}
-	if err := db.UpsertLiveRouteBatch([]*database.LiveRoute{
-		{
-			ID: uuid.New(), Prefix: "192.0.2.0/24", MaskLength: 24, IPVersion: 4,
-			OriginASN: origins[0], PeerIP: "198.51.100.1", ASPath: []int{origins[0]}, NextHop: "198.51.100.1",
-			LastUpdated: ts,
-		},
-		{
-			ID: uuid.New(), Prefix: "192.0.2.0/24", MaskLength: 24, IPVersion: 4,
-			OriginASN: origins[1], PeerIP: "198.51.100.2", ASPath: []int{origins[1]}, NextHop: "198.51.100.2",
-			LastUpdated: ts,
-		},
-	}); err != nil {
-		t.Fatalf("UpsertLiveRouteBatch: %v", err)
-	}
-
-	s := New(failingASDetailsDB{db}, streamer.New(logger.New(), metrics.New()), logger.New(), &config.Config{})
-	rec := httptest.NewRecorder()
-	s.router.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/prefix/192.0.2.0/24", nil))
-	if rec.Code != http.StatusOK {
-		t.Fatalf("status %d, want %d; body %s", rec.Code, http.StatusOK, rec.Body)
-	}
-
-	page := rec.Body.String()
-	for _, asn := range origins {
-		info, ok := asinfo.Get(asn)
-		if !ok {
-			t.Fatalf("AS%d is not in the AS info data", asn)
-		}
-		if want := "(" + html.EscapeString(info.Handle) + ")"; !strings.Contains(page, want) {
-			t.Errorf("page does not show AS%d's handle %q", asn, want)
-		}
-		if want := html.EscapeString(info.Description); !strings.Contains(page, want) {
-			t.Errorf("page does not show AS%d's description %q", asn, want)
-		}
-	}
-}
-
-// shortRequestDeadline is the deadline the tests below give a request. The
-// server's 30-second limit and the stats handlers' 4-second limit inherit it,
-// so the tests do not wait for either.
-const shortRequestDeadline = 50 * time.Millisecond
-
-// TestRequestPastTimeLimitAnswers504 sends a request through the server's
-// router to a page and to a JSON route whose handlers wait for the time limit
-// to pass and return without answering. The page answers 504; the JSON route
-// answers 504 with the JSON error body. Before the fix both answered 408,
-// written by the time limit middleware from its own goroutine while the
-// handler could still be writing.
-func TestRequestPastTimeLimitAnswers504(t *testing.T) {
-	s := New(nil, streamer.New(logger.New(), metrics.New()), logger.New(), &config.Config{})
-
-	waitForTimeLimit := func(_ http.ResponseWriter, r *http.Request) {
-		<-r.Context().Done()
-	}
-	// Registered the way setupRoutes registers pages and JSON routes.
-	s.router.Get("/slow-page", waitForTimeLimit)
-	s.router.Get("/slow.json", JSONValidationMiddleware(http.HandlerFunc(waitForTimeLimit)).ServeHTTP)
-
-	tests := []struct {
-		path         string
-		wantJSONBody bool
-	}{
-		{path: "/slow-page"},
-		{path: "/slow.json", wantJSONBody: true},
-	}
-
-	for _, tt := range tests {
-		ctx, cancel := context.WithTimeout(context.Background(), shortRequestDeadline)
-		rec := httptest.NewRecorder()
-		s.router.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, tt.path, nil).WithContext(ctx))
-		cancel()
-
-		if rec.Code != http.StatusGatewayTimeout {
-			t.Errorf("%s: status %d, want %d; body %s", tt.path, rec.Code, http.StatusGatewayTimeout, rec.Body)
-		}
-		if tt.wantJSONBody {
-			checkJSONErrorCode(t, tt.path, rec, http.StatusGatewayTimeout)
-		}
-	}
-}
-
-// TestStatsHandlersAnswer504WhenDatabaseReadRunsOut calls each stats handler
-// with a store that does not answer before the handler's 4-second limit runs
-// out, and checks that the handler itself answers 504 with the JSON error
-// body. Before the fix status.json answered 408, and /api/v1/stats wrote
-// nothing, which the JSON check on its route turned into 500.
-func TestStatsHandlersAnswer504WhenDatabaseReadRunsOut(t *testing.T) {
-	release := make(chan struct{})
-	defer close(release)
-	db := blockingStatsDB{release: release}
-	s := New(db, streamer.New(logger.New(), metrics.New()), logger.New(), &config.Config{})
-
-	handlers := map[string]http.HandlerFunc{
-		"status.json": s.handleStatusJSON(),
-		"stats":       s.handleStats(),
-	}
-
-	for name, handler := range handlers {
-		ctx, cancel := context.WithTimeout(context.Background(), shortRequestDeadline)
-		rec := httptest.NewRecorder()
-		handler(rec, httptest.NewRequest(http.MethodGet, "/", nil).WithContext(ctx))
-		cancel()
-
-		if rec.Code != http.StatusGatewayTimeout {
-			t.Errorf("%s: status %d, want %d; body %s", name, rec.Code, http.StatusGatewayTimeout, rec.Body)
-		}
-		checkJSONErrorCode(t, name, rec, http.StatusGatewayTimeout)
-	}
-}
-
-// slowDB embeds database.Store (left nil) and overrides the reads the routes
-// in TestRoutesAnswer504WhenDatabaseReadIsCutOff make. Each read waits until
-// its context ends and then answers as the real store does when the time
-// limit cuts it off: the IP read with the context's error, the prefix read
-// that there is no route, and the others with what they had read, here
-// nothing, and no error. Every other Store method is unused and would panic
-// if called.
-type slowDB struct {
-	database.Store
-}
-
-func (slowDB) GetStatsContext(ctx context.Context) (database.Stats, error) {
-	<-ctx.Done()
-
-	return database.Stats{}, nil
-}
-
-func (slowDB) GetIPInfoContext(ctx context.Context, _ string) (*database.IPInfo, error) {
-	<-ctx.Done()
-
-	return nil, ctx.Err()
-}
-
-func (slowDB) GetASDetailsContext(ctx context.Context, asn int) (*database.ASN, []database.LiveRoute, error) {
-	<-ctx.Done()
-
-	return &database.ASN{ASN: asn}, nil, nil
-}
-
-func (slowDB) GetPrefixDetailsContext(ctx context.Context, _ string) ([]database.LiveRoute, map[int]database.ASN, error) {
-	<-ctx.Done()
-
-	return nil, nil, database.ErrNoRoute
-}
-
-func (slowDB) GetRandomPrefixesByLengthContext(ctx context.Context, _, _, _ int) ([]database.LiveRoute, error) {
-	<-ctx.Done()
-
-	return nil, nil
-}
-
-// TestRoutesAnswer504WhenDatabaseReadIsCutOff sends a request through the
-// server's router for each route that reads the database, with a store whose
-// reads are cut off when the request's time limit passes. Each route answers
-// 504 with the time limit message. Without its check after the read, a route
-// answers with what the cut-off read returned: 500, 404, 200, or, on a page
-// that stops before rendering once the request has ended, 504 with an empty
-// body. The health check is left out: it answers 503 when its own 2-second
-// ping runs out.
-func TestRoutesAnswer504WhenDatabaseReadIsCutOff(t *testing.T) {
-	s := New(slowDB{}, streamer.New(logger.New(), metrics.New()), logger.New(), &config.Config{})
-
-	tests := []struct {
-		path         string
-		wantJSONBody bool
-	}{
-		{path: "/as/64500"},
-		{path: "/prefix/192.0.2.0/24"},
-		{path: "/prefixlength/24"},
-		{path: "/prefixlength6/48"},
-		{path: "/status.json", wantJSONBody: true},
-		{path: "/ip/192.0.2.1", wantJSONBody: true},
-		{path: "/api/v1/stats", wantJSONBody: true},
-		{path: "/api/v1/ip/192.0.2.1", wantJSONBody: true},
-		{path: "/api/v1/as/64500", wantJSONBody: true},
-		{path: "/api/v1/prefix/192.0.2.0/24", wantJSONBody: true},
-	}
-
-	for _, tt := range tests {
-		checkRouteAnswers504(t, s, tt.path, tt.wantJSONBody)
-	}
-}
-
-// slowSecondReadDB embeds database.Store (left nil) and overrides the reads
-// of the routes that read the database twice. The first read answers at once;
-// the second, the AS page's peers read or the stats routes' WHOIS read, waits
-// until its context ends and then answers with the context's error, as the
-// real store does.
-type slowSecondReadDB struct {
-	database.Store
-}
-
-func (slowSecondReadDB) GetASDetailsContext(_ context.Context, asn int) (*database.ASN, []database.LiveRoute, error) {
-	return &database.ASN{ASN: asn}, nil, nil
-}
-
-func (slowSecondReadDB) GetASPeersContext(ctx context.Context, _ int) ([]database.ASPeer, error) {
-	<-ctx.Done()
-
-	return nil, ctx.Err()
-}
-
-func (slowSecondReadDB) GetStatsContext(_ context.Context) (database.Stats, error) {
-	return database.Stats{}, nil
-}
-
-func (slowSecondReadDB) GetWHOISStats(ctx context.Context, _ time.Duration) (*database.WHOISStats, error) {
-	<-ctx.Done()
-
-	return nil, ctx.Err()
-}
-
-// idleASNFetcher is a WHOIS fetcher that does nothing. The stats handlers
-// read the WHOIS stats only when the server has a fetcher.
-type idleASNFetcher struct{}
-
-func (idleASNFetcher) QueueImmediate(int) {}
-
-func (idleASNFetcher) GetStats() ASNFetcherStats {
-	return ASNFetcherStats{}
-}
-
-// TestRoutesAnswer504WhenSecondDatabaseReadIsCutOff sends a request through
-// the server's router for each route that reads the database twice, with a
-// store that answers the first read and cuts off the second when the
-// request's time limit passes. Each route answers 504 with the time limit
-// message. Without the check after the second read, the AS page answers 504
-// with an empty body and the stats routes answer 200 without the WHOIS stats.
-func TestRoutesAnswer504WhenSecondDatabaseReadIsCutOff(t *testing.T) {
-	s := New(slowSecondReadDB{}, streamer.New(logger.New(), metrics.New()), logger.New(), &config.Config{})
-	s.SetASNFetcher(idleASNFetcher{})
-
-	tests := []struct {
-		path         string
-		wantJSONBody bool
-	}{
-		{path: "/as/64500"},
-		{path: "/status.json", wantJSONBody: true},
-		{path: "/api/v1/stats", wantJSONBody: true},
-	}
-
-	for _, tt := range tests {
-		checkRouteAnswers504(t, s, tt.path, tt.wantJSONBody)
-	}
-}
-
-// checkRouteAnswers504 sends a request for path through the server's router
-// with a short deadline and checks that it answers 504 with the time limit
-// message: the JSON error body on JSON routes, the plain message on pages.
-func checkRouteAnswers504(t *testing.T, s *Server, path string, wantJSONBody bool) {
-	t.Helper()
-
-	ctx, cancel := context.WithTimeout(context.Background(), shortRequestDeadline)
-	defer cancel()
-	rec := httptest.NewRecorder()
-	s.router.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, path, nil).WithContext(ctx))
-
-	if rec.Code != http.StatusGatewayTimeout {
-		t.Errorf("%s: status %d, want %d; body %s", path, rec.Code, http.StatusGatewayTimeout, rec.Body)
-	}
-	if wantJSONBody {
-		checkJSONErrorCode(t, path, rec, http.StatusGatewayTimeout)
-	} else if body := strings.TrimSpace(rec.Body.String()); body != requestTimeoutMessage {
-		t.Errorf("%s: body %q, want %q", path, body, requestTimeoutMessage)
-	}
-}
-
-// checkJSONErrorCode checks that rec holds the JSON error body with the given
-// code.
-func checkJSONErrorCode(t *testing.T, name string, rec *httptest.ResponseRecorder, want int) {
-	t.Helper()
-
-	var body struct {
-		Status string `json:"status"`
-		Error  struct {
-			Code int `json:"code"`
-		} `json:"error"`
-	}
-	if err := json.Unmarshal(rec.Body.Bytes(), &body); err != nil {
-		t.Errorf("%s: decoding the answer %q: %v", name, rec.Body, err)
-
-		return
-	}
-	if body.Status != "error" || body.Error.Code != want {
-		t.Errorf("%s: answer %s, want status \"error\" and error code %d", name, rec.Body, want)
-	}
-}
-
 // settledGoroutineCount lets transient goroutines finish, then reports the
 // current count.
 func settledGoroutineCount() int {

internal/server/middleware.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"log/slog"
 	"net/http"
@@ -110,28 +109,142 @@ func JSONResponseMiddleware(next http.Handler) http.Handler {
 	})
 }
 
-// requestTimeoutMessage is the error message sent with 504 Gateway Timeout.
+// timeoutWriter wraps ResponseWriter to prevent concurrent writes after timeout
-const requestTimeoutMessage = "Request timeout"
+type timeoutWriter struct {
+	http.ResponseWriter
+	mu      sync.Mutex
+	written bool
+	header  http.Header // cached header to prevent concurrent access
+}
 
-// deadlinePassed reports whether ctx ended because its deadline passed.
+func (tw *timeoutWriter) Write(b []byte) (int, error) {
+	tw.mu.Lock()
+	defer tw.mu.Unlock()
+
+	if tw.written {
+		return 0, nil // Discard writes after timeout
+	}
+
+	return tw.ResponseWriter.Write(b)
+}
+
+func (tw *timeoutWriter) WriteHeader(statusCode int) {
+	tw.mu.Lock()
+	defer tw.mu.Unlock()
+
+	if tw.written {
+		return // Discard writes after timeout
+	}
+
+	tw.ResponseWriter.WriteHeader(statusCode)
+}
+
+func (tw *timeoutWriter) Header() http.Header {
+	tw.mu.Lock()
+	defer tw.mu.Unlock()
+
+	if tw.written {
+		// Return a copy to prevent modifications after timeout
+		if tw.header == nil {
+			tw.header = make(http.Header)
+		}
+
+		return tw.header
+	}
+
+	return tw.ResponseWriter.Header()
+}
+
+func (tw *timeoutWriter) markWritten() {
+	tw.mu.Lock()
+	defer tw.mu.Unlock()
+	tw.written = true
+}
+
+// TimeoutMiddleware creates an HTTP middleware that enforces a request timeout.
+// If the handler does not complete within the specified duration, the middleware
+// returns a JSON error response with HTTP status 408 (Request Timeout).
 //
-// A handler calls it right after each database read or host name lookup,
+// The timeout parameter specifies the maximum duration allowed for request processing.
-// before it looks at what came back, error or not, and answers 504 if it
+// The returned middleware handles panics from the wrapped handler by re-panicking
-// reports true. A read cut off by the time limit can return an error, or part
+// after cleanup, and prevents concurrent writes to the response after timeout occurs.
-// of its rows or none of them without one, so only this check tells a cut-off
+func TimeoutMiddleware(timeout time.Duration, logger *slog.Logger) func(http.Handler) http.Handler {
-// read from a complete one.
+	return func(next http.Handler) http.Handler {
-func deadlinePassed(ctx context.Context) bool {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-	return errors.Is(ctx.Err(), context.DeadlineExceeded)
+			startTime := time.Now()
+
+			ctx, cancel := context.WithTimeout(r.Context(), timeout)
+			defer cancel()
+
+			tw := &timeoutWriter{
+				ResponseWriter: w,
+				header:         make(http.Header),
+			}
+
+			done := make(chan struct{})
+			panicChan := make(chan interface{}, 1)
+
+			go func() {
+				defer func() {
+					if p := recover(); p != nil {
+						panicChan <- p
+					}
+				}()
+
+				next.ServeHTTP(tw, r.WithContext(ctx))
+				close(done)
+			}()
+
+			select {
+			case p := <-panicChan:
+				panic(p)
+			case <-done:
+				return
+			case <-ctx.Done():
+				tw.markWritten() // Prevent the handler from writing after timeout
+				execTime := time.Since(startTime)
+
+				// Log the timeout as a warning
+				logger.Warn("Request timeout",
+					"method", r.Method,
+					"path", r.URL.Path,
+					"duration_ms", execTime.Milliseconds(),
+					"remote_addr", r.RemoteAddr,
+				)
+
+				// Write directly to the underlying writer since we've marked tw as written
+				// This is safe because markWritten() prevents the handler from writing
+				tw.mu.Lock()
+				w.Header().Set("Content-Type", "application/json")
+				w.WriteHeader(http.StatusRequestTimeout)
+				tw.mu.Unlock()
+
+				response := map[string]interface{}{
+					"status": "error",
+					"error": map[string]interface{}{
+						"msg":  "Request timeout",
+						"code": http.StatusRequestTimeout,
+					},
+					"@meta": map[string]interface{}{
+						"time_zone":      "UTC",
+						"api_version":    1,
+						"execution_time": fmt.Sprintf("%d ms", execTime.Milliseconds()),
+					},
+				}
+
+				_ = json.NewEncoder(w).Encode(response)
+			}
+		})
+	}
 }
 
 // JSONValidationMiddleware is an HTTP middleware that validates JSON API responses.
 // It ensures that responses with Content-Type "application/json" contain valid JSON.
 //
 // If a response is not valid JSON or is empty when JSON is expected, the middleware
-// returns a properly formatted JSON error response. If the request's time limit
+// returns a properly formatted JSON error response. For timeout errors (status 408),
-// has passed, it answers 504 with the error message "Request timeout". For other
+// the error message will be "Request timeout". For other errors, it returns
-// errors, it returns "Internal server error" with status 500 if the original
+// "Internal server error" with status 500 if the original status was 200.
-// status was 200.
 //
 // Non-JSON responses are passed through unchanged.
 func JSONValidationMiddleware(next http.Handler) http.Handler {
@@ -180,14 +293,11 @@ func JSONValidationMiddleware(next http.Handler) http.Handler {
 		if statusCode == http.StatusOK {
 			statusCode = http.StatusInternalServerError
 		}
-		if deadlinePassed(r.Context()) {
-			statusCode = http.StatusGatewayTimeout
-		}
 		w.WriteHeader(statusCode)
 
 		errorMsg := "Internal server error"
-		if statusCode == http.StatusGatewayTimeout {
+		if statusCode == http.StatusRequestTimeout {
-			errorMsg = requestTimeoutMessage
+			errorMsg = "Request timeout"
 		}
 
 		response := map[string]interface{}{

internal/server/routes.go

@@ -16,12 +16,9 @@ func (s *Server) setupRoutes() {
 	r.Use(middleware.RealIP)
 	r.Use(RequestLoggerMiddleware(s.logger.Logger)) // Structured request logging
 	r.Use(middleware.Recoverer)
-	r.Use(JSONResponseMiddleware)
-	// Timeout must come after JSONResponseMiddleware, which sends its answer
-	// when the handler returns and would send a 200 ahead of Timeout's 504 for
-	// a handler that wrote nothing.
 	const requestTimeout = 30 * time.Second // Increased from 8s for slow queries
-	r.Use(middleware.Timeout(requestTimeout))
+	r.Use(TimeoutMiddleware(requestTimeout, s.logger.Logger))
+	r.Use(JSONResponseMiddleware)
 
 	// Routes
 	r.Get("/", s.handleIndex())

internal/server/server.go

@@ -3,8 +3,6 @@ package server
 
 import (
 	"context"
-	"fmt"
-	"net"
 	"net/http"
 	"strconv"
 	"time"
@@ -55,12 +53,9 @@ func New(db database.Store, streamer *streamer.Streamer, logger *logger.Logger,
 	return s
 }
 
-// Start listens on the configured port and serves HTTP in the background.
+// Start starts the HTTP server
-// It returns an error if it cannot listen, for example because the port is
-// already in use.
 func (s *Server) Start() error {
 	const (
-		network           = "tcp"
 		readHeaderTimeout = 40 * time.Second
 		readTimeout       = 60 * time.Second
 		writeTimeout      = 60 * time.Second
@@ -78,15 +73,10 @@ func (s *Server) Start() error {
 
 	s.logger.Info("Starting HTTP server", "port", s.port, "addr", s.srv.Addr)
 
-	listener, err := net.Listen(network, s.srv.Addr)
+	// Start in goroutine but log when actually listening
-	if err != nil {
-		return fmt.Errorf("starting HTTP server: %w", err)
-	}
-
-	s.logger.Info("HTTP server listening", "addr", listener.Addr().String())
-
 	go func() {
-		if err := s.srv.Serve(listener); err != nil && err != http.ErrServerClosed {
+		s.logger.Info("HTTP server listening", "addr", s.srv.Addr)
+		if err := s.srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
 			s.logger.Error("HTTP server error", "error", err)
 		}
 	}()

internal/server/server_test.go

@@ -1,33 +0,0 @@
-package server
-
-import (
-	"context"
-	"net"
-	"testing"
-
-	"git.eeqj.de/sneak/routewatch/internal/config"
-	"git.eeqj.de/sneak/routewatch/internal/logger"
-	"git.eeqj.de/sneak/routewatch/internal/metrics"
-	"git.eeqj.de/sneak/routewatch/internal/streamer"
-)
-
-// TestStartFailsWhenPortIsHeld holds a port with a listener of its own and
-// checks that Start on that port returns an error. Before the fix Start
-// listened in a goroutine, only logged the failure and returned nil, so the
-// daemon kept running without its web server.
-func TestStartFailsWhenPortIsHeld(t *testing.T) {
-	held, err := net.Listen("tcp", ":0")
-	if err != nil {
-		t.Fatalf("failed to open the test listener: %v", err)
-	}
-	defer func() { _ = held.Close() }()
-
-	port := held.Addr().(*net.TCPAddr).Port
-	log := logger.New()
-	s := New(nil, streamer.New(log, metrics.New()), log, &config.Config{Port: port})
-	defer func() { _ = s.Stop(context.Background()) }()
-
-	if err := s.Start(); err == nil {
-		t.Fatalf("Start returned nil while port %d was held by another listener", port)
-	}
-}

internal/streamer/streamer.go

@@ -7,7 +7,6 @@ import (
 	"compress/gzip"
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"io"
 	"math"
@@ -49,7 +48,6 @@ const (
 	metricsUpdateRate     = time.Second
 	minBackoffDelay       = 5 * time.Second
 	maxBackoffDelay       = 320 * time.Second
-	streamIdleTimeout     = 60 * time.Second // Reconnect when no line arrives for this long
 	metricsLogInterval    = 10 * time.Second
 	bytesPerKB            = 1024
 	bytesPerMB            = 1024 * 1024
@@ -60,9 +58,6 @@ const (
 	backpressureSlope     = 2.0 // Slope for linear drop probability increase
 )
 
-// errStreamEnded is returned by stream when RIS Live ends the response.
-var errStreamEnded = errors.New("RIS Live ended the stream")
-
 // MessageHandler defines the interface for processing RIS messages.
 // Implementations must specify which message types they want to receive,
 // how to process messages, and their desired queue capacity.
@@ -112,8 +107,6 @@ type Streamer struct {
 	logger       *logger.Logger
 	client       *http.Client
 	url          string
-	idleTimeout  time.Duration // Drop the connection when no line arrives for this long
-	minBackoff   time.Duration // First wait before reconnecting; doubles up to maxBackoffDelay
 	handlers     []*handlerInfo
 	rawHandler   RawMessageHandler
 	mu           sync.RWMutex
@@ -131,10 +124,8 @@ type Streamer struct {
 // The metrics tracker is used to record message counts, bytes received, and connection status.
 func New(logger *logger.Logger, metrics *metrics.Tracker) *Streamer {
 	return &Streamer{
-		logger:      logger,
+		logger: logger,
-		url:         risLiveURL,
+		url:    risLiveURL,
-		idleTimeout: streamIdleTimeout,
-		minBackoff:  minBackoffDelay,
 		client: &http.Client{
 			Timeout: 0, // No timeout for streaming
 			Transport: &http.Transport{
@@ -414,7 +405,7 @@ func (s *Streamer) updateMetrics(messageBytes int) {
 
 // streamWithReconnect handles streaming with automatic reconnection and exponential backoff
 func (s *Streamer) streamWithReconnect(ctx context.Context) {
-	backoffDelay := s.minBackoff
+	backoffDelay := minBackoffDelay
 	consecutiveFailures := 0
 
 	for {
@@ -431,9 +422,8 @@ func (s *Streamer) streamWithReconnect(ctx context.Context) {
 		err := s.stream(ctx)
 		streamDuration := time.Since(startTime)
 
-		// Only Stop ends the streamer. A stream that ends any other way,
+		if err == nil {
-		// with or without an error, is a disconnect and is reconnected.
+			// Clean exit (context cancelled)
-		if ctx.Err() != nil {
 			return
 		}
 
@@ -444,13 +434,17 @@ func (s *Streamer) streamWithReconnect(ctx context.Context) {
 			"stream_duration", streamDuration)
 		s.metrics.SetConnected(false)
 
-		// A stream that lasted more than 30 seconds resets the backoff. That
+		// Check if context is cancelled
-		// includes a stream dropped after streamIdleTimeout with no line, so
+		if ctx.Err() != nil {
-		// a silent feed is retried after the first backoff delay every time.
+			return
+		}
+
+		// If we streamed for more than 30 seconds, reset the backoff
+		// This indicates we had a successful connection that received data
 		if streamDuration > 30*time.Second {
 			s.logger.Info("Resetting backoff delay due to successful connection",
 				"stream_duration", streamDuration)
-			backoffDelay = s.minBackoff
+			backoffDelay = minBackoffDelay
 			consecutiveFailures = 0
 		} else {
 			// Increment consecutive failures
@@ -483,13 +477,7 @@ func (s *Streamer) stream(ctx context.Context) error {
 	connCtx, connCancel := context.WithCancel(ctx)
 	defer connCancel()
 
-	// The idle timer drops the connection, by cancelling connCtx, when no
+	req, err := http.NewRequestWithContext(ctx, "GET", s.url, nil)
-	// line arrives for s.idleTimeout. Each line read starts it over. It
-	// also covers the wait for the server to answer.
-	idleTimer := time.AfterFunc(s.idleTimeout, connCancel)
-	defer idleTimer.Stop()
-
-	req, err := http.NewRequestWithContext(connCtx, "GET", s.url, nil)
 	if err != nil {
 		return fmt.Errorf("failed to create request: %w", err)
 	}
@@ -571,8 +559,6 @@ func (s *Streamer) stream(ctx context.Context) error {
 	scanner := bufio.NewScanner(reader)
 
 	for scanner.Scan() {
-		idleTimer.Reset(s.idleTimeout)
-
 		select {
 		case <-ctx.Done():
 			s.logger.Info("Stream stopped by context")
@@ -721,19 +707,11 @@ func (s *Streamer) stream(ctx context.Context) error {
 		s.mu.RUnlock()
 	}
 
-	if ctx.Err() != nil {
-		return ctx.Err()
-	}
-
-	if connCtx.Err() != nil {
-		return fmt.Errorf("no line received for %s", s.idleTimeout)
-	}
-
 	if err := scanner.Err(); err != nil {
 		return fmt.Errorf("scanner error: %w", err)
 	}
 
-	return errStreamEnded
+	return nil
 }
 
 // shouldDropForBackpressure determines if a message should be dropped based on queue utilization

internal/streamer/streamer_test.go

@@ -7,7 +7,6 @@ import (
 	"net/http"
 	"net/http/httptest"
 	"runtime"
-	"sync/atomic"
 	"testing"
 	"time"
 
@@ -40,14 +39,6 @@ func TestNewStreamer(t *testing.T) {
 	if s.metrics != metricsTracker {
 		t.Error("metrics tracker not set correctly")
 	}
-
-	if s.idleTimeout != streamIdleTimeout {
-		t.Errorf("idleTimeout = %s, want %s", s.idleTimeout, streamIdleTimeout)
-	}
-
-	if s.minBackoff != minBackoffDelay {
-		t.Errorf("minBackoff = %s, want %s", s.minBackoff, minBackoffDelay)
-	}
 }
 
 // TestStreamDoesNotLeakTickersAcrossReconnects drives many short-lived
@@ -66,8 +57,8 @@ func TestStreamDoesNotLeakTickersAcrossReconnects(t *testing.T) {
 
 	// One warm-up connection so any persistent HTTP transport goroutine exists
 	// before we take the baseline.
-	if err := s.stream(context.Background()); !errors.Is(err, errStreamEnded) {
+	if err := s.stream(context.Background()); err != nil {
-		t.Fatalf("warm-up stream returned %v, want %v", err, errStreamEnded)
+		t.Fatalf("warm-up stream returned error: %v", err)
 	}
 	s.client.CloseIdleConnections()
 
@@ -75,8 +66,8 @@ func TestStreamDoesNotLeakTickersAcrossReconnects(t *testing.T) {
 
 	const reconnects = 20
 	for range reconnects {
-		if err := s.stream(context.Background()); !errors.Is(err, errStreamEnded) {
+		if err := s.stream(context.Background()); err != nil {
-			t.Fatalf("stream returned %v, want %v", err, errStreamEnded)
+			t.Fatalf("stream returned error: %v", err)
 		}
 	}
 	s.client.CloseIdleConnections()
@@ -87,35 +78,23 @@ func TestStreamDoesNotLeakTickersAcrossReconnects(t *testing.T) {
 	}
 }
 
-// updateLine is one UPDATE message as RIS Live sends it.
+// updateHandler wants UPDATE messages and does nothing with them.
-const updateLine = `{"type":"ris_message","data":{"type":"UPDATE","peer":"192.0.2.1",` +
+type updateHandler struct{}
-	`"peer_asn":"64496","timestamp":1700000000}}` + "\n"
-
-// updateHandler wants UPDATE messages. For each one it handles it sends on
-// handled if there is room, and otherwise does nothing; a nil handled is
-// never sent on.
-type updateHandler struct {
-	handled chan struct{}
-}
 
 func (updateHandler) WantsMessage(messageType string) bool { return messageType == "UPDATE" }
+func (updateHandler) HandleMessage(*ristypes.RISMessage)   {}
 func (updateHandler) QueueCapacity() int                   { return 10 }
 
-func (h updateHandler) HandleMessage(*ristypes.RISMessage) {
-	select {
-	case h.handled <- struct{}{}:
-	default:
-	}
-}
-
 // TestStopBeforeMessageReachesQueues stops the streamer after the read loop
 // has checked for cancellation but before it hands the message to the handler
 // queues. That is the gap a stop from another goroutine can land in, and it
 // used to end in "send on closed channel". The raw handler runs in that gap on
 // the read loop itself, so calling Stop from it hits the gap every time.
 func TestStopBeforeMessageReachesQueues(t *testing.T) {
+	const line = `{"type":"ris_message","data":{"type":"UPDATE","peer":"192.0.2.1",` +
+		`"peer_asn":"64496","timestamp":1700000000}}` + "\n"
 	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
-		_, _ = io.WriteString(w, updateLine)
+		_, _ = io.WriteString(w, line)
 	}))
 	defer srv.Close()
 
@@ -138,117 +117,6 @@ func TestStopBeforeMessageReachesQueues(t *testing.T) {
 	s.Stop()
 }
 
-// TestReconnectWhenStreamEnds has the server end the first response
-// normally, as when RIS Live restarts. The streamer must treat that as a
-// disconnect and connect again.
-func TestReconnectWhenStreamEnds(t *testing.T) {
-	endResponse := func(http.ResponseWriter, *http.Request) {}
-	checkReconnect(t, endResponse, streamIdleTimeout)
-}
-
-// TestReconnectWhenStreamGoesIdle has the server hold the first response
-// open without sending anything. The streamer must drop it once the idle
-// timeout passes and connect again.
-func TestReconnectWhenStreamGoesIdle(t *testing.T) {
-	const idleTimeout = 50 * time.Millisecond
-	holdResponse := func(w http.ResponseWriter, r *http.Request) {
-		w.(http.Flusher).Flush()
-		<-r.Context().Done()
-	}
-	checkReconnect(t, holdResponse, idleTimeout)
-}
-
-// TestReconnectWhenServerNeverAnswers has the server accept the first
-// request and never answer it, not even with headers. The streamer must give
-// up on it once the idle timeout passes and connect again.
-func TestReconnectWhenServerNeverAnswers(t *testing.T) {
-	const idleTimeout = 50 * time.Millisecond
-	neverAnswer := func(_ http.ResponseWriter, r *http.Request) {
-		<-r.Context().Done()
-	}
-	checkReconnect(t, neverAnswer, idleTimeout)
-}
-
-// TestStreamNotDroppedWhileLinesArrive has the server send lines well within
-// the idle timeout for several times the timeout, then end the response. Each
-// line must start the idle timeout over, so the stream lasts until the server
-// ends it instead of being dropped as idle.
-func TestStreamNotDroppedWhileLinesArrive(t *testing.T) {
-	const (
-		idleTimeout  = 100 * time.Millisecond
-		lineInterval = idleTimeout / 10
-		sendFor      = 5 * idleTimeout
-	)
-	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
-		deadline := time.Now().Add(sendFor)
-		for time.Now().Before(deadline) {
-			_, _ = io.WriteString(w, updateLine)
-			w.(http.Flusher).Flush()
-			time.Sleep(lineInterval)
-		}
-	}))
-	defer srv.Close()
-
-	s := New(logger.New(), metrics.New())
-	s.url = srv.URL
-	s.idleTimeout = idleTimeout
-
-	if err := s.stream(context.Background()); !errors.Is(err, errStreamEnded) {
-		t.Fatalf("stream returned %v, want %v", err, errStreamEnded)
-	}
-}
-
-// checkReconnect runs a streamer against a fake RIS Live server. The first
-// response is served by firstResponse; every later one carries one UPDATE
-// line and then stays open. The streamer must come back for a second
-// response, must not be marked connected when it does, and must handle the
-// UPDATE in it.
-func checkReconnect(t *testing.T, firstResponse http.HandlerFunc, idleTimeout time.Duration) {
-	t.Helper()
-
-	const maxWait = 5 * time.Second
-
-	tracker := metrics.New()
-	connectedAtReconnect := make(chan bool, 1)
-	var requests atomic.Int32
-	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if requests.Add(1) == 1 {
-			firstResponse(w, r)
-
-			return
-		}
-		select {
-		case connectedAtReconnect <- tracker.IsConnected():
-		default:
-		}
-		_, _ = io.WriteString(w, updateLine)
-		w.(http.Flusher).Flush()
-		<-r.Context().Done()
-	}))
-	defer srv.Close()
-
-	s := New(logger.New(), tracker)
-	s.url = srv.URL
-	s.idleTimeout = idleTimeout
-	s.minBackoff = time.Millisecond
-	handler := updateHandler{handled: make(chan struct{}, 1)}
-	s.RegisterHandler(handler)
-	if err := s.Start(); err != nil {
-		t.Fatalf("Start returned error: %v", err)
-	}
-	defer s.Stop()
-
-	select {
-	case <-handler.handled:
-	case <-time.After(maxWait):
-		t.Fatalf("no message from a second response handled within %s", maxWait)
-	}
-
-	if <-connectedAtReconnect {
-		t.Error("streamer was still marked connected when it came back for a second response")
-	}
-}
-
 // settledGoroutineCount lets transient goroutines finish, then reports the
 // current count.
 func settledGoroutineCount() int {

internal/templates/prefix_detail.html

@@ -283,7 +283,6 @@
                 <div class="origin-item">
                     <a href="/as/{{.ASN}}" class="as-link">AS{{.ASN}}</a>
                     {{if .Handle}} ({{.Handle}}){{end}}
-                    {{if .Description}} {{.Description}}{{end}}
                     <span style="color: #7f8c8d; margin-left: 10px;">{{.PeerCount}} peer{{if ne .PeerCount 1}}s{{end}}</span>
                 </div>
                 {{end}}