Distributed PPSS - semi-working version, may still contain bugs.
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75d2794d11
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43
ppss.sh
43
ppss.sh
@ -41,29 +41,29 @@ trap 'kill_process; ' INT
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SCRIPT_NAME="Parallel Processing Shell Script"
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SCRIPT_VERSION="1.10"
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RUNNING_SIGNAL="$0_is_running"
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GLOBAL_LOCK="PPSS-GLOBAL-LOCK"
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PAUSE_SIGNAL="pause.txt"
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ARRAY_POINTER_FILE="ppss-array-pointer"
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JOB_LOG_DIR="JOB_LOG"
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LOGFILE="ppss-log.txt"
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RUNNING_SIGNAL="$0_is_running" # Prevents running mutiple instances of PPSS..
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GLOBAL_LOCK="PPSS-GLOBAL-LOCK" # Global lock file used by local PPSS instance.
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PAUSE_SIGNAL="pause.txt" # Not implemented yet (pause processing).
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ARRAY_POINTER_FILE="ppss-array-pointer" #
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JOB_LOG_DIR="JOB_LOG" # Directory containing log files of processed items.
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LOGFILE="ppss-log.txt" # General PPSS log file. Contains lots of info.
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MAX_DELAY=2
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PERCENT="0"
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PID="$$"
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LISTENER_PID=""
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IFS_BACKUP="$IFS"
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INTERVAL="15"
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INTERVAL="15" # Polling interval to check if there are running jobs.
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SSH_SERVER="" # Remote server or 'master'.
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SSH_SERVER="" # Remote server or 'master'.
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SSH_KEY="" # SSH key for ssh account.
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SSH_SOCKET="/tmp/PPSS-ssh-socket"
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SSH_SOCKET="/tmp/PPSS-ssh-socket" # Multiplex multiple SSH connections over 1 master.
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SSH_OPTS="-o BatchMode=yes -o ControlPath=$SSH_SOCKET -o ControlMaster=auto -o ConnectTimeout=5"
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SSH_MASTER_PID=""
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ITEM_LOCK_DIR="PPSS_ITEM_LOCK_DIR"
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PPSS_LOCAL_WORKDIR="PPSS_LOCAL_WORKDIR"
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TRANSFER_TO_SLAVE="0"
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SECURE_COPY="1"
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REMOTE_OUTPUT_DIR=""
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ITEM_LOCK_DIR="PPSS_ITEM_LOCK_DIR" # Remote directory on master used for item locking.
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PPSS_LOCAL_WORKDIR="PPSS_LOCAL_WORKDIR" # Local directory on slave for local processing.
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TRANSFER_TO_SLAVE="0" # Transfer item to slave via (s)cp.
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SECURE_COPY="1" # If set, use SCP, Otherwise, use cp.
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REMOTE_OUTPUT_DIR="" # Remote directory to which output must be uploaded.
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showusage () {
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@ -73,7 +73,8 @@ showusage () {
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echo
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echo "Description: this script processess files or other items in parallel. It is designed to make"
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echo "use of the multi-core CPUs. It will detect the number of available CPUs and start a thread "
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echo "for each CPU core. It will also use hyperthreading if available."
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echo "for each CPU core. It will also use hyperthreading if available." It has also support for
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echo "distributed usage, using a Master server in conjunction with (multiple) slaves."
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echo
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echo "Usage: $0 [ options ]"
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echo
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@ -81,10 +82,10 @@ showusage () {
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echo
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echo -e "\t- c \tCommand to execute. Can be a custom script or just a plain command."
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echo -e "\t- d \tDirectory containing items to be processed."
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echo -e "\t- f \tFile containing items to be processed. Either -d or -f"
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echo -e "\t- f \tFile containing items to be processed. (Alternative to -d)"
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echo -e "\t- l \tSpecifies name and location of the logfile."
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echo -e "\t- p \tOptional: specifies number of simultaneous processes manually."
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echo -e "\t- j \tOptional: Enable or disable hyperthreading. Enabled by default."
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echo -e "\t- p \tSpecifies number of simultaneous processes manually. (optional)"
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echo -e "\t- j \tEnable or disable hyperthreading. Enabled by default. (optional)"
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echo
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echo "Options for distributed usage:"
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echo
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@ -92,6 +93,7 @@ showusage () {
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echo -e "\t- k \tSSH key file used for connection with 'PPSS master server'."
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echo -e "\t- t \tTransfer remote item to slave for local processing."
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echo -e "\t- o \tUpload output back to server into this directory."
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echo -e "\t- n \tDo *not* use scp for item transfer but use cp. "
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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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@ -219,7 +221,7 @@ then
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fi
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# Process any command-line options that are specified."
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while getopts ":c:d:f:i:jhk:l:o:p:s:tv" OPTIONS
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while getopts ":c:d:f:i:jhk:l:no:p:s:tv" OPTIONS
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do
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case $OPTIONS in
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f )
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@ -244,6 +246,9 @@ do
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k )
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SSH_KEY="-i $OPTARG"
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;;
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n )
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SECURE_COPY=0
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;;
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o )
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REMOTE_OUTPUT_DIR="$OPTARG"
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;;
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