- Use separate variables for IPv4 and IPv6 query results
- Add nil checks before closing rows to prevent panic
- Prevents crash when database queries timeout or fail
- Add urlEncode template function to properly encode prefix URLs
- Move prefix_length.html to embedded templates with function map
- Prevents broken links for prefixes containing slashes
- Add thread-safe header wrapper in timeoutWriter
- Check context cancellation before writing responses in handlers
- Protect header access after timeout with mutex
- Prevents race condition when requests timeout while handlers are still running
- Add context-aware versions of all read operations in the database
- Update handlers to use context from HTTP requests
- Allows database queries to be cancelled when HTTP requests timeout
- Prevents database operations from continuing after client disconnects
- Remove duplicate http.Error call when context times out
- The timeout middleware already handles writing the response
- Prevents "concurrent write to websocket connection" panic
- Add dashed underline to prefix count links to indicate they are clickable
- Change to solid blue underline on hover for better UX
- Remove inline styles and use CSS classes instead
- Change GetRandomPrefixesByLength to return unique prefixes instead of all routes
- Use CTE to first select random unique prefixes, then join to get their latest route info
- This ensures each prefix appears only once in the list
- Add compound index on (ip_version, mask_length, prefix) to speed up prefix distribution queries
- This index will significantly improve performance of COUNT(DISTINCT prefix) operations
- Note: Existing databases will need to manually create this index or recreate the database
- Fix GetPrefixDistribution to count unique prefixes using COUNT(DISTINCT prefix) instead of COUNT(*)
- Add /prefixlength/<length> route showing random sample of 500 prefixes
- Make prefix counts on status page clickable links to prefix length pages
- Add GetRandomPrefixesByLength database method
- Create prefix_length.html template with sortable table
- Show prefix age and origin AS with descriptions
- Change AS path from descriptions to handles (short names)
- Make each AS in the path a clickable link to /as/<asn>
- Add font-weight to AS links in path for better visibility
- Prevent word wrapping on all table columns except AS path
- Remove unused maxASDescriptionLength constant
- Increase prefix batch size from 5K to 20K
- Increase ASN batch size from 10K to 30K
- Add comments warning not to reduce batch timeouts
- Add comments warning not to increase queue sizes above 100K
- Maintains existing batch timeouts for efficiency
- Display AS descriptions alongside AS numbers in format: Description (ASN)
- Truncate descriptions longer than 20 characters with ellipsis
- Increase container max width to 1600px for better display
- Enable word wrapping for AS path cells to handle long paths
- Update mobile responsive styles for AS path display
- Reduce cache size from 8GB to 512MB (still plenty for 2.4GB DB)
- Reduce mmap_size from 10GB to 256MB (reasonable default)
- Use default page size (4KB) instead of 8KB
- Use default WAL checkpoint interval (1000 pages)
- Remove redundant pragmas (threads, cache_spill, read_uncommitted)
- Clean up connection string to only use _txlock parameter
- Keep synchronous=OFF for performance (since we have mutex protection)
- Add internal mutex to Database struct with lock/unlock wrappers
- Add debug logging for lock acquisition and release with timing
- Wrap all write operations with database mutex
- Use _txlock=immediate in SQLite connection string
This works around apparent issues with SQLite's internal locking
not properly respecting busy_timeout in production environment.
- Add _txlock=immediate to SQLite connection string
- This prevents deadlocks by acquiring write locks at transaction start
- Multiple concurrent writers now queue properly instead of failing instantly
- Resolves 'database table is locked' errors in production
