Updated help page. Not finished yet.
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Louwrentius
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#!/usr/bin/env bash
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#*
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#* PPSS, the Parallel Processing Shell Script
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#*
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#* Copyright (c) 2009, Louwrentius
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#* All rights reserved.
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#*
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#* Redistribution and use in source and binary forms, with or without
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#* modification, are permitted provided that the following conditions are met:
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#* * Redistributions of source code must retain the above copyright
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#* notice, this list of conditions and the following disclaimer.
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#* * Redistributions in binary form must reproduce the above copyright
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#* notice, this list of conditions and the following disclaimer in the
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#* documentation and/or other materials provided with the distribution.
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#* * Neither the name of the <organization> nor the
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#* names of its contributors may be used to endorse or promote products
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#* derived from this software without specific prior written permission.
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#*
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#* THIS SOFTWARE IS PROVIDED BY Louwrentius ''AS IS'' AND ANY
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#* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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#* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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#* DISCLAIMED. IN NO EVENT SHALL Louwrentius BE LIABLE FOR ANY
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#* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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#* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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#* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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#* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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#* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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#* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# PPSS, the Parallel Processing Shell Script
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#
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# Copyright (c) 2009, Louwrentius
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the <organization> nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY Louwrentius ''AS IS'' AND ANY
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# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL Louwrentius BE LIABLE FOR ANY
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#------------------------------------------------------
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# It should not be necessary to edit antyhing.
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# Ofcource you can if it is necesary for your needs.
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#------------------------------------------------------------------------------
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# It should not be necessary to edit antyhing in this script..
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# Ofcource you can if it is necessary for your needs.
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# Send a patch if your changes may benefit others.
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#------------------------------------------------------
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#------------------------------------------------------------------------------
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# Handling control-c for a clean shutdown.
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trap 'kill_process; ' INT
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@ -41,11 +40,12 @@ trap 'kill_process; ' INT
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SCRIPT_NAME="Distributed Parallel Processing Shell Script"
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SCRIPT_VERSION="1.999"
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# The first argument to this script is always the 'mode'.
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MODE="$1"
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shift
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ARGS=$@
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CONFIG="config.cfg"
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DAEMON=0
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HOSTNAME=`hostname`
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ARCH=`uname`
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RUNNING_SIGNAL="$0_is_running" # Prevents running mutiple instances of PPSS..
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@ -62,12 +62,15 @@ PERCENT="0"
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PID="$$"
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LISTENER_PID=""
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IFS_BACKUP="$IFS"
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INTERVAL="10" # Polling interval to check if there are running jobs.
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INTERVAL="30" # Polling interval to check if there are running jobs.
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SSH_SERVER="" # Remote server or 'master'.
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SSH_KEY="" # SSH key for ssh account.
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SSH_SOCKET="/tmp/PPSS-ssh-socket" # Multiplex multiple SSH connections over 1 master.
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SSH_OPTS="-o BatchMode=yes -o ControlPath=$SSH_SOCKET -o GlobalKnownHostsFile=./known_hosts -o ControlMaster=auto -o ConnectTimeout=5"
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SSH_OPTS="-o BatchMode=yes -o ControlPath=$SSH_SOCKET \
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-o GlobalKnownHostsFile=./known_hosts \
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-o ControlMaster=auto \
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-o ConnectTimeout=5"
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SSH_MASTER_PID=""
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PPSS_HOME_DIR="ppss"
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@ -86,29 +89,67 @@ showusage () {
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echo "$SCRIPT_NAME"
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echo "Version: $SCRIPT_VERSION"
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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." 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 "PPSS is a Bash shell script that processes a list of items, such as files in a"
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echo "directory, in parallel."
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echo
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echo "Usage: $0 [ options ]"
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echo "Usage: $0 MODE [ options ]"
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echo " or "
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echo "Usage: $0 MODE -c <config file>"
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echo
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echo "Modes are:"
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echo
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echo " standalone For execution of PPSS on a single host."
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echo " node For execution of PPSS on a node, that is part of a 'cluster'."
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echo " server Starting PPSS on nodes."
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echo " config Generate a config file based on the supplied option parameters."
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echo " deploy Deploy PPSS and related files on the specified nodes."
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echo " erase Erase PPSS and related files from the specified nodes."
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echo
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echo "Options are:"
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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. (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 \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 -e "--command | -c Command to execute. Syntax: '<command> ' including the single quotes."
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echo -e " Example: -c 'ls -alh '. It is also possible to specify where an item "
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echo -e " must be inserted: 'cp \"\$ITEM\" /somedir'."
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echo
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echo -e "\t- s \tUsername@server domain name or IP-address of 'PPSS master server'."
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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- b \tDo *not* use scp for item transfer but use cp. "
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echo -e "--sourcedir | -d Directory that contains files that must be processed. Individual files"
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echo -e " are fed as an argument to the command that has been specified with -c."
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echo
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echo -e "--sourcefile | -f Each single line of the supplied file will be fed as an item to the"
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echo -e " command that has been specified with -c."
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echo
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echo -e "--config | -c If the mode is config, a config file with the specified name will be"
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echo -e " generated based on all the options specified. In the other modes".
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echo -e " this option will result in PPSS reading the config file and start"
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echo -e " processing items based on the settings of this file."
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echo
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echo -e "--enable-ht | -j Enable hyperthreading. Is disabled by default."
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echo
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echo -e "--log | -l Sets the name of the log file. The default is ppss-log.txt."
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echo
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echo -e "--processes | -p Start the specified number of processes. Ignore the number of available"
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echo -e " CPU's."
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echo
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echo -e "The following options are used for distributed execution of PPSS."
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echo
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echo -e "--server | -s Specifies the SSH server that is used for communication between nodes."
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echo -e " Using SSH, file locks are created, informing other nodes that an item "
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echo -e " is locked. Also, often items, such as files, reside on this host. SCP "
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echo -e " is used to transfer files from this host to nodes for local procesing."
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echo
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echo -e "--node | -n File containig a list of nodes that act as PPSS clients. One IP / DNS "
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echo -e " name per line."
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echo
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echo -e "--key | -k The SSH key that a node uses to connect to the server."
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echo
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echo -e "--user | -u The SSH user name that is used when logging in into the master SSH"
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echo -e " server."
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echo
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echo -e "--script | -s Specifies the script/program that must be copied to the nodes for "
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echo -e " execution by the nodes through PPSS. Only used in the deploy mode."
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echo -e " This option should be specified if necessary when generating a config."
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echo
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echo -e "--transfer | -t This option specifies that an item will be downloaded by the node "
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echo -e " from the server or share to the local node for processing."
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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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@ -310,6 +351,12 @@ do
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--help|-h )
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showusage
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exit 1;;
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--homedir|-H)
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PPSS_HOME_DIR="$2"
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add_Var_to_config PPSS_HOME_DIR $PPSS_HOME_DIR
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shift 2
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;;
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--enable-ht|-j )
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HYPERTHREADING=yes
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add_var_to_config HYPERTHREADING "yes"
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@ -487,7 +534,7 @@ log () {
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echo -e "$LOG_MSG" >> "$LOGFILE"
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if [ "$TYPE" == "INFO" ] && [ "$DAEMON" == "0" ]
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if [ "$TYPE" == "INFO" ]
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then
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echo -e "$LOG_MSG"
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fi
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