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Updated help page. Not finished yet.

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Louwrentius 2009-03-05 23:19:55 +00:00
parent 7136b270c3
commit e8624be832
1 changed files with 101 additions and 54 deletions
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branches/distributed-ppss/ppss.sh
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@ -1,38 +1,37 @@
#!/usr/bin/env bash #!/usr/bin/env bash
#* #
#* PPSS, the Parallel Processing Shell Script # PPSS, the Parallel Processing Shell Script
#* #
#* Copyright (c) 2009, Louwrentius # Copyright (c) 2009, Louwrentius
#* All rights reserved. # All rights reserved.
#* #
#* Redistribution and use in source and binary forms, with or without # Redistribution and use in source and binary forms, with or without
#* modification, are permitted provided that the following conditions are met: # modification, are permitted provided that the following conditions are met:
#* * Redistributions of source code must retain the above copyright # * Redistributions of source code must retain the above copyright
#* notice, this list of conditions and the following disclaimer. # notice, this list of conditions and the following disclaimer.
#* * Redistributions in binary form must reproduce the above copyright # * Redistributions in binary form must reproduce the above copyright
#* notice, this list of conditions and the following disclaimer in the # notice, this list of conditions and the following disclaimer in the
#* documentation and/or other materials provided with the distribution. # documentation and/or other materials provided with the distribution.
#* * Neither the name of the <organization> nor the # * Neither the name of the <organization> nor the
#* names of its contributors may be used to endorse or promote products # names of its contributors may be used to endorse or promote products
#* derived from this software without specific prior written permission. # derived from this software without specific prior written permission.
#* #
#* THIS SOFTWARE IS PROVIDED BY Louwrentius ''AS IS'' AND ANY # THIS SOFTWARE IS PROVIDED BY Louwrentius ''AS IS'' AND ANY
#* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
#* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
#* DISCLAIMED. IN NO EVENT SHALL Louwrentius BE LIABLE FOR ANY # DISCLAIMED. IN NO EVENT SHALL Louwrentius BE LIABLE FOR ANY
#* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
#* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
#* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
#* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
#* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
#* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#------------------------------------------------------------------------------
#------------------------------------------------------ # It should not be necessary to edit antyhing in this script..
# It should not be necessary to edit antyhing. # Ofcource you can if it is necessary for your needs.
# Ofcource you can if it is necesary for your needs.
# Send a patch if your changes may benefit others. # Send a patch if your changes may benefit others.
#------------------------------------------------------ #------------------------------------------------------------------------------
# Handling control-c for a clean shutdown. # Handling control-c for a clean shutdown.
trap 'kill_process; ' INT trap 'kill_process; ' INT
@ -41,11 +40,12 @@ trap 'kill_process; ' INT
SCRIPT_NAME="Distributed Parallel Processing Shell Script" SCRIPT_NAME="Distributed Parallel Processing Shell Script"
SCRIPT_VERSION="1.999" SCRIPT_VERSION="1.999"
# The first argument to this script is always the 'mode'.
MODE="$1" MODE="$1"
shift shift
ARGS=$@ ARGS=$@
CONFIG="config.cfg" CONFIG="config.cfg"
DAEMON=0
HOSTNAME=`hostname` HOSTNAME=`hostname`
ARCH=`uname` ARCH=`uname`
RUNNING_SIGNAL="$0_is_running" # Prevents running mutiple instances of PPSS.. RUNNING_SIGNAL="$0_is_running" # Prevents running mutiple instances of PPSS..
@ -62,12 +62,15 @@ PERCENT="0"
PID="$$" PID="$$"
LISTENER_PID="" LISTENER_PID=""
IFS_BACKUP="$IFS" IFS_BACKUP="$IFS"
INTERVAL="10" # Polling interval to check if there are running jobs. INTERVAL="30" # Polling interval to check if there are running jobs.
SSH_SERVER="" # Remote server or 'master'. SSH_SERVER="" # Remote server or 'master'.
SSH_KEY="" # SSH key for ssh account. SSH_KEY="" # SSH key for ssh account.
SSH_SOCKET="/tmp/PPSS-ssh-socket" # Multiplex multiple SSH connections over 1 master. SSH_SOCKET="/tmp/PPSS-ssh-socket" # Multiplex multiple SSH connections over 1 master.
SSH_OPTS="-o BatchMode=yes -o ControlPath=$SSH_SOCKET -o GlobalKnownHostsFile=./known_hosts -o ControlMaster=auto -o ConnectTimeout=5" SSH_OPTS="-o BatchMode=yes -o ControlPath=$SSH_SOCKET \
-o GlobalKnownHostsFile=./known_hosts \
-o ControlMaster=auto \
-o ConnectTimeout=5"
SSH_MASTER_PID="" SSH_MASTER_PID=""
PPSS_HOME_DIR="ppss" PPSS_HOME_DIR="ppss"
@ -86,29 +89,67 @@ showusage () {
echo "$SCRIPT_NAME" echo "$SCRIPT_NAME"
echo "Version: $SCRIPT_VERSION" echo "Version: $SCRIPT_VERSION"
echo echo
echo "Description: this script processess files or other items in parallel. It is designed to make" echo "PPSS is a Bash shell script that processes a list of items, such as files in a"
echo "use of the multi-core CPUs. It will detect the number of available CPUs and start a thread " echo "directory, in parallel."
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
echo "Usage: $0 [ options ]" echo "Usage: $0 MODE [ options ]"
echo " or "
echo "Usage: $0 MODE -c <config file>"
echo
echo "Modes are:"
echo
echo " standalone For execution of PPSS on a single host."
echo " node For execution of PPSS on a node, that is part of a 'cluster'."
echo " server Starting PPSS on nodes."
echo " config Generate a config file based on the supplied option parameters."
echo " deploy Deploy PPSS and related files on the specified nodes."
echo " erase Erase PPSS and related files from the specified nodes."
echo echo
echo "Options are:" echo "Options are:"
echo echo
echo -e "\t- c \tCommand to execute. Can be a custom script or just a plain command." echo -e "--command | -c Command to execute. Syntax: '<command> ' including the single quotes."
echo -e "\t- d \tDirectory containing items to be processed." echo -e " Example: -c 'ls -alh '. It is also possible to specify where an item "
echo -e "\t- f \tFile containing items to be processed. (Alternative to -d)" echo -e " must be inserted: 'cp \"\$ITEM\" /somedir'."
echo -e "\t- l \tSpecifies name and location of the logfile."
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
echo "Options for distributed usage:" echo -e "--sourcedir | -d Directory that contains files that must be processed. Individual files"
echo -e " are fed as an argument to the command that has been specified with -c."
echo echo
echo -e "\t- s \tUsername@server domain name or IP-address of 'PPSS master server'." echo -e "--sourcefile | -f Each single line of the supplied file will be fed as an item to the"
echo -e "\t- k \tSSH key file used for connection with 'PPSS master server'." echo -e " command that has been specified with -c."
echo -e "\t- t \tTransfer remote item to slave for local processing." echo
echo -e "\t- o \tUpload output back to server into this directory." echo -e "--config | -c If the mode is config, a config file with the specified name will be"
echo -e "\t- b \tDo *not* use scp for item transfer but use cp. " echo -e " generated based on all the options specified. In the other modes".
echo -e " this option will result in PPSS reading the config file and start"
echo -e " processing items based on the settings of this file."
echo
echo -e "--enable-ht | -j Enable hyperthreading. Is disabled by default."
echo
echo -e "--log | -l Sets the name of the log file. The default is ppss-log.txt."
echo
echo -e "--processes | -p Start the specified number of processes. Ignore the number of available"
echo -e " CPU's."
echo
echo -e "The following options are used for distributed execution of PPSS."
echo
echo -e "--server | -s Specifies the SSH server that is used for communication between nodes."
echo -e " Using SSH, file locks are created, informing other nodes that an item "
echo -e " is locked. Also, often items, such as files, reside on this host. SCP "
echo -e " is used to transfer files from this host to nodes for local procesing."
echo
echo -e "--node | -n File containig a list of nodes that act as PPSS clients. One IP / DNS "
echo -e " name per line."
echo
echo -e "--key | -k The SSH key that a node uses to connect to the server."
echo
echo -e "--user | -u The SSH user name that is used when logging in into the master SSH"
echo -e " server."
echo
echo -e "--script | -s Specifies the script/program that must be copied to the nodes for "
echo -e " execution by the nodes through PPSS. Only used in the deploy mode."
echo -e " This option should be specified if necessary when generating a config."
echo
echo -e "--transfer | -t This option specifies that an item will be downloaded by the node "
echo -e " from the server or share to the local node for processing."
echo echo
echo -e "Example: encoding some wav files to mp3 using lame:" echo -e "Example: encoding some wav files to mp3 using lame:"
echo echo
@ -310,6 +351,12 @@ do
--help|-h ) --help|-h )
showusage showusage
exit 1;; exit 1;;
--homedir|-H)
PPSS_HOME_DIR="$2"
add_Var_to_config PPSS_HOME_DIR $PPSS_HOME_DIR
shift 2
;;
--enable-ht|-j ) --enable-ht|-j )
HYPERTHREADING=yes HYPERTHREADING=yes
add_var_to_config HYPERTHREADING "yes" add_var_to_config HYPERTHREADING "yes"
@ -487,7 +534,7 @@ log () {
echo -e "$LOG_MSG" >> "$LOGFILE" echo -e "$LOG_MSG" >> "$LOGFILE"
if [ "$TYPE" == "INFO" ] && [ "$DAEMON" == "0" ] if [ "$TYPE" == "INFO" ]
then then
echo -e "$LOG_MSG" echo -e "$LOG_MSG"
fi fi