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Distributed PPSS - semi-working version, may still contain bugs.

This commit is contained in:
Louwrentius 2009-01-25 23:47:02 +00:00
parent 75d2794d11
commit 6fbce95978
1 changed files with 24 additions and 19 deletions
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41
ppss.sh
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@ -41,29 +41,29 @@ trap 'kill_process; ' INT
SCRIPT_NAME="Parallel Processing Shell Script"
SCRIPT_VERSION="1.10"
RUNNING_SIGNAL="$0_is_running"
GLOBAL_LOCK="PPSS-GLOBAL-LOCK"
PAUSE_SIGNAL="pause.txt"
ARRAY_POINTER_FILE="ppss-array-pointer"
JOB_LOG_DIR="JOB_LOG"
LOGFILE="ppss-log.txt"
RUNNING_SIGNAL="$0_is_running" # Prevents running mutiple instances of PPSS..
GLOBAL_LOCK="PPSS-GLOBAL-LOCK" # Global lock file used by local PPSS instance.
PAUSE_SIGNAL="pause.txt" # Not implemented yet (pause processing).
ARRAY_POINTER_FILE="ppss-array-pointer" #
JOB_LOG_DIR="JOB_LOG" # Directory containing log files of processed items.
LOGFILE="ppss-log.txt" # General PPSS log file. Contains lots of info.
MAX_DELAY=2
PERCENT="0"
PID="$$"
LISTENER_PID=""
IFS_BACKUP="$IFS"
INTERVAL="15"
INTERVAL="15" # Polling interval to check if there are running jobs.
SSH_SERVER="" # Remote server or 'master'.
SSH_KEY="" # SSH key for ssh account.
SSH_SOCKET="/tmp/PPSS-ssh-socket"
SSH_SOCKET="/tmp/PPSS-ssh-socket" # Multiplex multiple SSH connections over 1 master.
SSH_OPTS="-o BatchMode=yes -o ControlPath=$SSH_SOCKET -o ControlMaster=auto -o ConnectTimeout=5"
SSH_MASTER_PID=""
ITEM_LOCK_DIR="PPSS_ITEM_LOCK_DIR"
PPSS_LOCAL_WORKDIR="PPSS_LOCAL_WORKDIR"
TRANSFER_TO_SLAVE="0"
SECURE_COPY="1"
REMOTE_OUTPUT_DIR=""
ITEM_LOCK_DIR="PPSS_ITEM_LOCK_DIR" # Remote directory on master used for item locking.
PPSS_LOCAL_WORKDIR="PPSS_LOCAL_WORKDIR" # Local directory on slave for local processing.
TRANSFER_TO_SLAVE="0" # Transfer item to slave via (s)cp.
SECURE_COPY="1" # If set, use SCP, Otherwise, use cp.
REMOTE_OUTPUT_DIR="" # Remote directory to which output must be uploaded.
showusage () {
@ -73,7 +73,8 @@ showusage () {
echo
echo "Description: this script processess files or other items in parallel. It is designed to make"
echo "use of the multi-core CPUs. It will detect the number of available CPUs and start a thread "
echo "for each CPU core. It will also use hyperthreading if available."
echo "for each CPU core. It will also use hyperthreading if available." It has also support for
echo "distributed usage, using a Master server in conjunction with (multiple) slaves."
echo
echo "Usage: $0 [ options ]"
echo
@ -81,10 +82,10 @@ showusage () {
echo
echo -e "\t- c \tCommand to execute. Can be a custom script or just a plain command."
echo -e "\t- d \tDirectory containing items to be processed."
echo -e "\t- f \tFile containing items to be processed. Either -d or -f"
echo -e "\t- f \tFile containing items to be processed. (Alternative to -d)"
echo -e "\t- l \tSpecifies name and location of the logfile."
echo -e "\t- p \tOptional: specifies number of simultaneous processes manually."
echo -e "\t- j \tOptional: Enable or disable hyperthreading. Enabled by default."
echo -e "\t- p \tSpecifies number of simultaneous processes manually. (optional)"
echo -e "\t- j \tEnable or disable hyperthreading. Enabled by default. (optional)"
echo
echo "Options for distributed usage:"
echo
@ -92,6 +93,7 @@ showusage () {
echo -e "\t- k \tSSH key file used for connection with 'PPSS master server'."
echo -e "\t- t \tTransfer remote item to slave for local processing."
echo -e "\t- o \tUpload output back to server into this directory."
echo -e "\t- n \tDo *not* use scp for item transfer but use cp. "
echo
echo -e "Example: encoding some wav files to mp3 using lame:"
echo
@ -219,7 +221,7 @@ then
fi
# Process any command-line options that are specified."
while getopts ":c:d:f:i:jhk:l:o:p:s:tv" OPTIONS
while getopts ":c:d:f:i:jhk:l:no:p:s:tv" OPTIONS
do
case $OPTIONS in
f )
@ -244,6 +246,9 @@ do
k )
SSH_KEY="-i $OPTARG"
;;
n )
SECURE_COPY=0
;;
o )
REMOTE_OUTPUT_DIR="$OPTARG"
;;