First version of distributed PPSS - does not work yet - untested
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Louwrentius
parent
df5dd30d10
commit
7bb1641075
102
trunk/ppss.sh
102
trunk/ppss.sh
@ -45,7 +45,7 @@ RUNNING_SIGNAL="$0_is_running"
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GLOBAL_LOCK="PPSS-$RANDOM-$RANDOM"
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PAUSE_SIGNAL="pause.txt"
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ARRAY_POINTER_FILE="array-pointer-$RANDOM-$RANDOM"
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JOB_LOG_DIR="job_log"
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JOB_LOG_DIR="JOB_LOG"
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LOGFILE="ppss-log.txt"
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MAX_DELAY=2
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PERCENT="0"
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@ -53,6 +53,9 @@ PID="$$"
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LISTENER_PID=""
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IFS_BACKUP="$IFS"
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SSH_SERVER="" # Remote server or 'master'.
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SSH_KEY="" # SSH key for ssh account.
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showusage () {
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echo
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@ -74,6 +77,11 @@ showusage () {
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echo -e "\t- p [ no of parallel processes ] \tOptional: specifies number of simultaneous processes manually."
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echo -e "\t- j ( enable hyperthreading ) \t\tOptiona: Enable or disable hyperthreading. Enabled by default."
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echo
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echo "Options for distributed usage:"
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echo
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echo -e "\t- s [ username@server ] \t\tUsername and server domain name or IP-address of 'PPSS server'."
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echo -e "\t- k [ SSH key file ] \t\tSSH key file used for connection with 'PPSS server'."
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echo
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echo -e "Example: encoding some wav files to mp3 using lame:"
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echo
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echo -e "$0 -c 'lame ' -d /path/to/wavfiles -l logfile -j (wach out for the space in -c)"
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@ -116,12 +124,12 @@ cleanup () {
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rm $FIFO
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fi
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if [ -e "$ARRAY_POINTER_FILE" ]
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if [ -e "$ARRAY_POINTER_FILE" ] && [ -z "$SSH_SERVER" ]
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then
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rm $ARRAY_POINTER_FILE
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fi
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if [ -e "$GLOBAL_LOCK" ]
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if [ -e "$GLOBAL_LOCK" ] && [ -z "$SSH_SERVER" ]
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then
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rm -rf "$GLOBAL_LOCK"
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fi
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@ -163,7 +171,7 @@ then
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fi
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# Process any command-line options that are specified."
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while getopts ":f:c:l:i:vhp:jd:" OPTIONS
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while getopts ":c:d:f:i:jhk:l:p:s:v" OPTIONS
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do
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case $OPTIONS in
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f )
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@ -186,12 +194,6 @@ do
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;;
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c )
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COMMAND="$OPTARG"
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if [ -z "$COMMAND" ]
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then
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echo "ERROR: command not specified."
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cleanup
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exit 1
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fi
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;;
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h )
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@ -203,6 +205,9 @@ do
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l )
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LOGFILE="$OPTARG"
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;;
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k )
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SSH_KEY="-i $OPTARG"
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;;
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p )
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TMP="$OPTARG"
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if [ ! -z "$TMP" ]
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@ -210,6 +215,9 @@ do
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MAX_NO_OF_RUNNING_JOBS="$TMP"
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fi
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;;
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s )
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SSH_SERVER="$OPTARG"
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;;
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v )
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echo ""
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@ -223,8 +231,21 @@ do
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esac
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done
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# Init log file
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# This function makes local and remote operation transparent.
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exec_cmd () {
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CMD="$1"
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if [ ! -z "$SSH_SERVER" ]
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then
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ssh "$SSH_KEY" "$SSH_SERVER" "$CMD"
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else
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`"$CMD"`
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fi
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}
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# Init all vars
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init_vars () {
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if [ -e "$LOGFILE" ]
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@ -242,7 +263,7 @@ init_vars () {
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exit 1
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fi
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echo 0 > "$ARRAY_POINTER_FILE"
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exec_cmd "echo 0 > $ARRAY_POINTER_FILE"
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FIFO=$(pwd)/fifo-$RANDOM-$RANDOM
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@ -265,7 +286,7 @@ init_vars () {
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log INFO "Job log directory $JOB_lOG_DIR does not exist. Creating."
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mkdir "$JOB_LOG_DIR"
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else
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log INFO "Job log directory $JOB_LOG_DIR exists, if it contains logs for items, these items will be skiped."
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log INFO "Job log directory $JOB_LOG_DIR exists, if it contains logs for items, these items will be skipiped."
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fi
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}
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@ -315,11 +336,24 @@ check_status () {
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if [ ! "$ERROR" == "0" ]
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then
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log INFO "$FUNCTION - $MESSAGE"
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cleanup
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exit 1
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fi
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}
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test_server () {
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if [ ! -z "$SSH_SERVER" ]
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then
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ssh "$SSH_KEY" "$SSH_SERVER" date >> /dev/null 2>&1
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check_status "$?" "$FUNCNAME" "Server $SSH_SERVER could not be reached."
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else
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log DEBUG "No remote server specified, assuming stand-alone mode."
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fi
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}
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get_no_of_cpus () {
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# Use hyperthreading or not?
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@ -403,10 +437,12 @@ random_delay () {
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sleep "$NUMBER"
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}
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global_lock () {
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mkdir $GLOBAL_LOCK > /dev/null 2>&1
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ERROR=$?
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exec_cmd "mkdir $GLOBAL_LOCK > /dev/null 2>&1"
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ERROR="$?"
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if [ ! "$ERROR" == "0" ]
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then
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return 1
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@ -433,18 +469,14 @@ get_global_lock () {
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release_global_lock () {
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if [ -e "$GLOBAL_LOCK" ]
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if [ ! -z "$SSH_SERVER" ]
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then
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rm -rf "$GLOBAL_LOCK"
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return 0
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ssh "$SSH_KEY" "$SSH_SERVER" rm -rf "$GLOBAL_LOCK"
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else
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log ERROR "$FUNCNAME Lock file $GLOBAL_LOCK not present, something is wrong!"
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return 1
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exit
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rm -rf "$GLOBAL_LOCK"
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fi
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}
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are_jobs_running () {
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NUMBER_OF_PROCS=`jobs | wc -l`
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@ -462,7 +494,13 @@ get_all_items () {
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if [ -z "$INPUT_FILE" ]
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then
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ITEMS=`ls -1 $SRC_DIR`
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if [ ! -z "SSH_SERVER" ] # Are we running stand-alone or as a slave?"
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then
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ITEMS=`ssh "$SSH_KEY" "$SSH_SERVER" ls -1 $SRC_DIR`
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check_status "$FUNCNAME" "Could not list files within remote source directory."
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else
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ITEMS=`ls -1 $SRC_DIR`
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fi
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IFS="
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"
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for x in $ITEMS
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@ -472,6 +510,12 @@ get_all_items () {
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done
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IFS=$IFS_BACKUP
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else
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if [ ! -z "SSH_SERVER" ] # Are we running stand-alone or as a slave?"
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then
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scp "$SSH_KEY" "$SSH_SERVER:~/$INPUT_FILE" >> /dev/null 2>&!
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check_status "$FUNCNAME" "Could not copy input file."
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fi
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exec 10<$INPUT_FILE
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while read LINE <&10
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@ -506,8 +550,7 @@ get_item () {
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fi
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# This variable is used to walk thtough all array items.
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ARRAY_POINTER=`cat "$ARRAY_POINTER_FILE"`
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ARRAY_POINTER=`exec_cmd "cat $ARRAY_POINTER_FILE"`
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# Gives a status update on the current progress..
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PERCENT=`echo "100 * $ARRAY_POINTER / $SIZE_OF_ARRAY" | bc`
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@ -527,12 +570,12 @@ get_item () {
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if [ -z "$ITEM" ]
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then
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((ARRAY_POINTER++))
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echo $ARRAY_POINTER > $ARRAY_POINTER_FILE
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exec_cmd "echo $ARRAY_POINTER > $ARRAY_POINTER_FILE"
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release_global_lock
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get_item
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else
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((ARRAY_POINTER++))
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echo $ARRAY_POINTER > $ARRAY_POINTER_FILE
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exec_cmd "echo $ARRAY_POINTER > $ARRAY_POINTER_FILE"
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release_global_lock
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return 0
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fi
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@ -576,6 +619,10 @@ commando () {
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eval "$EXECME"
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fi
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get_global_lock
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scp "$SSH_KEY" "$ITEM_LOG_FILE" "$SSH_SERVER:~/$JOB_LOG"
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release_global_lock
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start_single_worker
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return $?
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}
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@ -611,6 +658,7 @@ main () {
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init_vars
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log DEBUG "---------------- START ---------------------"
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log INFO "$SCRIPT_NAME version $SCRIPT_VERSION"
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test_server
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get_all_items
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listen_for_job "$MAX_NO_OF_RUNNING_JOBS" &
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LISTENER_PID=$!
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