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#!/usr/bin/env bash
#
# PPSS, the Parallel Processing Shell Script
#
# Copyright (c) 2010, Louwrentius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# See <http://www.gnu.org/licenses/>
# for a copy of the GNU General Public License
#
# "Patches or other contributions are always welcome!"
#
#
# Handling control-c for a clean shutdown.
#
trap 'kill_process' SIGINT
SCRIPT_NAME="Distributed Parallel Processing Shell Script"
SCRIPT_VERSION="2.98"
#
# The first argument to this script can be a mode.
#
MODES="node start config stop pause continue deploy status erase kill"
for x in $MODES
do
if [[ "$x" == "$1" ]]
then
MODE="$1"
shift
break
fi
done
#
# The working directory of PPSS can be set with
# export PPSS_DIR=/path/to/workingdir
#
if [[ -z "$PPSS_DIR" ]]
then
PPSS_DIR="ppss_dir"
fi
CONFIG=""
HOSTNAME="$(hostname)"
ARCH="$(uname)"
PPSS_HOME_DIR="ppss-home"
SOURCED="$0"
PID="$$"
PAUSE_SIGNAL="$PPSS_HOME_DIR/$PPSS_DIR/pause_signal" # Pause processing if this file is present.
PAUSE_DELAY="60" # Polling every 1 minutes by default.
STOP_SIGNAL="$PPSS_HOME_DIR/$PPSS_DIR/stop_signal" # Stop processing if this file is present.
GLOBAL_COUNTER=1
LISTOFITEMS="$PPSS_DIR/INPUT_FILE-$PID"
JOB_LOG_DIR="$PPSS_DIR/job_log" # Directory containing log files of processed items.
LOGFILE="$PPSS_DIR/ppss-log-$PID.txt" # General PPSS log file. Contains lots of info.
FAILED_ITEMS_COUNTER=0
if [[ -z "$QUIET" ]]
then
QUIET="0"
fi
STOP="0" # STOP job.
MAX_DELAY="0" # MAX DELAY between jobs.
MAX_LOCK_DELAY="9" #
PERCENT="0"
LISTENER_PID=""
IFS_BACKUP="$IFS"
CPUINFO="/proc/cpuinfo"
PROCESSORS=""
START_KEY="start-$RANDOM$RANDOM$RANDOM$RANDOM" # If this key is received by listener, start a new process
FAIL_KEY="fail-$RANDOM$RANDOM$RANDOM$RANDOM" # if this key is received by listener, increase error count
KILL_KEY="kill-$RANDOM$RANDOM$RANDOM$RANDOM" # This is a signal to stop immediately and kill PPSS
QUEUE=""
INOTIFY=""
TRAVERSAL="1" # all running processes.
START_PPSS=""
STOP_PPSS=""
SIZE_OF_INPUT=""
LOCAL_LOCKING="1"
LIST_OF_PROCESSED_ITEMS="$PPSS_DIR/LIST_OF_PROCESSED_ITEMS"
PROCESSED_ITEMS=""
UNPROCESSED_ITEMS=""
FAILED_ITEMS="$PPSS_DIR/LIST_OF_FAILED_ITEMS"
ACTIVE_WORKERS="0"
DAEMON_POLLING_INTERVAL="10"
STAT=""
DAEMON_FILE_AGE="4"
ENABLE_INPUT_LOCK="0"
PROCESSING_TIME=""
NODE_ID="NODE_ID"
USE_MD5="0"
RANDOMIZE="0"
SSH_SERVER="" # Remote server or 'master'.
SSH_KEY="" # SSH key for ssh account.
SSH_KNOWN_HOSTS=""
SSH_SOCKET="$PPSS_DIR/ppss_ssh_socket-$$" # Multiplex multiple SSH connections over 1 master.
SSH_OPTS="-o BatchMode=yes -o ControlPath=$SSH_SOCKET \
-o GlobalKnownHostsFile=./known_hosts \
-o ControlMaster=auto \
-o Cipher=blowfish \
-o ConnectTimeout=10 "
SSH_OPTS_NOMP="-o BatchMode=yes -o GlobalKnownHostsFile=./known_hosts \
-o Cipher=blowfish \
-o ConnectTimeout=10 "
# Blowfish is faster but still secure.
SSH_MASTER_PID=""
ITEM_LOCK_DIR="$PPSS_DIR/PPSS_ITEM_LOCK_DIR" # Remote directory on master used for item locking.
PPSS_LOCAL_TMPDIR="$PPSS_DIR/PPSS_LOCAL_TMPDIR" # Local directory on slave for local processing.
PPSS_LOCAL_OUTPUT="$PPSS_DIR/PPSS_LOCAL_OUTPUT" # Local directory on slave for local output.
DOWNLOAD_TO_NODE="0" # Transfer item to slave via (s)cp.
UPLOAD_TO_SERVER="0" # Transfer output back to server via (s)cp.
SECURE_COPY="1" # If set, use SCP, Otherwise, use cp.
REMOTE_OUTPUT_DIR="" # Remote directory to which output must be uploaded.
SCRIPT="" # Custom user script that is executed by ppss.
ITEM_ESCAPED=""
DISABLE_SKIPPING=0
PPSS_NODE_STATUS="$PPSS_DIR/NODE_STATUS"
NODE_STATUS_FILE="$PPSS_NODE_STATUS/$HOSTNAME-status.txt"
DAEMON=0
EMAIL=""
REGISTER="" # For STACK
STACK=""
TMP_STACK=""
showusage_short () {
echo
echo "|P|P|S|S| $SCRIPT_NAME $SCRIPT_VERSION"
echo
echo "usage: $0 [[ -d <sourcedir> | -f <sourcefile> ]] [[ -c '<command> \"\$ITEM\"' ]] "
echo " [[ -C <configfile> ]] [[ -j ]] [[ -l <logfile> ]] [[ -p <# jobs> ]] "
echo " [[ -q ]] [[ -D <delay> ]] [[ -h ]] [[ --help ]] [[ -r ]] [[ --daemon ]] "
echo
echo "Examples:"
echo " $0 -d /dir/with/some/files -c 'gzip '"
echo " $0 -d /dir/with/some/files -c 'cp \"\$ITEM\" /tmp' -p 2"
echo " $0 -f <file> -c 'wget -q -P /destination/directory \"\$ITEM\"' -p 10"
echo
}
showusage_normal () {
showusage_head
showusage_basic
showusage_basic_example
}
showusage_long () {
showusage_extended_head
showusage_basic
showusage_extended_body
}
showusage_head () {
echo
echo "|P|P|S|S| $SCRIPT_NAME $SCRIPT_VERSION"
echo
echo "PPSS is a Bash shell script that executes commands in parallel on a set"
echo "of items, such as files in a directory, or lines in a file. The purpose"
echo "of PPSS is to make it simple to benefit from multiple CPUs or CPU cores."
echo
echo "This short summary only discusses options for stand-alone mode. For a"
echo "full listing of all options, run PPSS with the options --help"
echo
}
showusage_basic () {
echo "Usage $0 [[ options ]] "
echo
echo -e "--command | -c Command to execute. Syntax: '<command> ' including the single quotes."
echo -e " Example: -c 'ls -alh '. It is also possible to specify where an item "
echo -e " must be inserted: 'cp \"\$ITEM\" /somedir'."
echo
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 -e "--sourcefile | -f Each single line of the supplied file will be fed as an item to the"
echo -e " command that has been specified with -c. Read input from stdin with"
echo -e " -f -"
echo
echo -e "--config | -C If the mode is config, a config file with the specified name will be"
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 "--disable-ht | -j Disable hyper threading. Is enabled 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 " CPUs."
echo
echo -e "--quiet | -q Shows no output except for a progress indication using percents."
echo
echo -e "--delay | -D Adds an initial random delay to the start of all parallel jobs to spread"
echo -e " the load. The delay (seconds) is only used at the start of all 'threads'."
echo
echo -e "--daemon Daemon mode. Do not exit after items are professed, but keep looking "
echo -e " for new items and process them. Read the manual how to use this!"
echo -e " See --help for important additional options regarding daemon mode."
echo
echo -e "--disable-inotify Linux users can use real-time inotify filesystem events when using"
echo -e " daemon mode. Requires inotify-tools. Enabled by default if available."
echo -e " Automatically disabled if NFS is used as the daeon source dir."
echo
echo -e "--no-traversal|-r By default, PPSS uses the regular 'find' command to list all files"
echo -e " within the directory specified by the -d option. If you do not wish"
echo -e " for PPSS to process files in sub directories, use this option."
echo -e " Only files within the specified directory will be processed. Any"
echo -e " subdirectories will then be ignored."
echo
echo -e "--email | -e PPSS sends an e-mail if PPSS has finished. It is also used if processing"
echo -e " of an item has failed (configurable, see -h). "
echo
echo -e "--debug Enable debugging output to the |P|P|S|S| log file."
echo
echo -e "--help Extended help, including options for distributed mode."
}
showusage_basic_example () {
echo
echo -e "Example: encoding some wav files to mp3 using lame:"
echo
echo -e "$0 -d /path/to/wavfiles -c 'lame '"
echo
echo -e "Extended usage: use --help"
echo
}
showusage_extended_head () {
echo
echo "|P|P|S|S| $SCRIPT_NAME $SCRIPT_VERSION"
echo
echo "PPSS is a Bash shell script that executes commands in parallel on a set "
echo "of items, such as files in a directory, or lines in a file."
echo
echo "Usage: $0 [[ MODE ]] [[ options ]] "
echo
echo "Modes are optional and mainly used for running in distributed mode. Modes are:"
echo
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 " start Starting PPSS on nodes."
echo " pause Pausing PPSS on all nodes."
echo " stop Stopping PPSS on all nodes."
echo " continue Continuing PPSS on all nodes."
echo " node Running PPSS as a node, requires additional options."
}
showusage_extended_body () {
echo
echo -e "The following options are used for distributed execution of PPSS."
echo
echo -e "--master | -m 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. If items are files that must be processed, they must reside"
echo -e " on this host. SCP is used to transfer files from this host to nodes"
echo -e " 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 master."
echo
echo -e "--known-hosts | -K The file that contains the server public key. Can often be found on "
echo -e " hosts that already once connected to the server. See the file "
echo -e " ~/.ssh/known_hosts or else, manualy connect once and check this file."
echo
echo -e "--user | -u The SSH user name that is used by the node when logging in into the"
echo -e " master SSH server."
echo
echo -e "--script | -S Specifies the script/program that must be copied to the nodes for"
echo -e " execution through PPSS. Only used in the deploy mode."
echo -e " This option should be specified if necessary when generating a config."
echo
echo -e "--download 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 -e "--upload This option specifies that the output file will be copied back to"
echo -e " the server, the --outputdir option is mandatory."
echo
echo -e "--no-scp | -b Do not use scp for downloading items. Use cp instead. Assumes that a"
echo -e " network file system (NFS/SMB) is mounted under a local mount point."
echo
echo -e "--outputdir | -o Directory on server where processed files are put. If the result of "
echo -e " encoding a wav file is an mp3 file, the mp3 file is put in the "
echo -e " directory specified with this option."
echo
echo -e "--homedir | -H Directory in which PPSS is installed on the node."
echo -e " Default is '$PPSS_HOME_DIR'."
echo
echo -e "--script | -S Script to run on the node. PPSS must copy this script to the node."
echo
echo -e "--randomize | -R Randomise which items to process by the client in distributed mode."
echo -e " This makes sure that with many nodes, it is prevented that some"
echo -e " clients spend all their time trying to get a lock on an item."
echo
echo -e "Example: encoding some wav files to mp3 using lame:"
echo
echo -e "$0 -c 'lame ' -d /path/to/wavfiles -j "
echo
echo -e "Running PPSS based on a configuration file."
echo
echo -e "$0 -C config.cfg"
echo
echo -e "Generating a configuration file. Wavs are converted to mp3. SCP is used for data transfer."
echo
echo -e "$0 config -C ppss-config.cfg -d /some/dir -o output --download --upload -K known_hosts \\"
echo -e "-k ppss-key.dsa -n nodes.txt -m 10.0.0.100 \\"
echo -e "-c 'lame --quiet \"\$ITEM\" -o \"\$OUTPUT_DIR/\$OUTPUT_FILE\".mp3' "
echo
echo -e "Running PPSS on a client as part of a cluster."
echo
echo -e "$0 node -d /somedir -c 'cp \"\$ITEM\" /some/destination' -m 10.0.0.50 -u ppss -k ppss-key.key"
echo
}
kill_process () {
echo "$KILL_KEY" >> "$FIFO"
}
exec_cmd () {
STATUS=""
CMD="$1"
NOMP="$2" # Disable multiplexing.
if [[ "$ARCH" == "FreeBSD" ]]
then
CMD="bash $CMD"
fi
if [[ ! -z "$SSH_SERVER" ]]
then
if [[ -z "$NOMP" ]]
then
ssh $SSH_OPTS $SSH_KEY $USER@$SSH_SERVER $CMD
STATUS=$?
elif [[ "$NOMP" == "1" ]]
then
ssh $SSH_OPTS_NOMP $SSH_KEY $USER@$SSH_SERVER $CMD
STATUS=$?
fi
else
eval "$CMD"
STATUS=$?
log DEBUG "LOCAL EXEC - status is $STATUS"
fi
return $STATUS
}
does_file_exist () {
#
# this function makes remote or local checking of existence of items transparent.
#
FILE="$1"
RES=$(exec_cmd "ls -1 $FILE" 2>&1)
if [[ "$?" == "0" ]]
then
return 0
else
return 1
fi
}
check_for_interrupt () {
#
# PPSS can be interupted with a stop or pause command.
#
does_file_exist "$STOP_SIGNAL"
if [[ "$?" == "0" ]]
then
set_status "STOPPED" "$FAILED_ITEMS_COUNTER"
log INFO "STOPPING job. Stop signal found."
STOP="1"
return 1
fi
does_file_exist "$PAUSE_SIGNAL"
if [[ "$?" == "0" ]]
then
set_status "PAUSED" "$FAILED_ITEMS_COUNTER"
log INFO "PAUSE: sleeping for $PAUSE_DELAY SECONDS."
sleep $PAUSE_DELAY
check_for_interrupt
else
set_status "RUNNING" "$FAILED_ITEMS_COUNTER"
fi
}
cleanup () {
log DEBUG "$FUNCNAME - Cleaning up all temp files and processes. $1"
for x in $MODES
do
if [[ "$x" == "$MODE" ]]
then
if [[ "$x" != "node" ]]
then
rm -rf "$PPSS_DIR"
fi
fi
done
if [[ -e "$FIFO" ]]
then
rm "$FIFO"
fi
if [[ -e "$FIFO_LISTENER" ]]
then
rm "$FIFO_LISTENER"
fi
if [[ -e "$SSH_SOCKET" ]]
then
rm -rf "$SSH_SOCKET"
fi
if [[ ! -z "$SSH_MASTER_PID" ]]
then
kill "$SSH_MASTER_PID"
fi
}
add_var_to_config () {
if [[ "$MODE" == "config" ]]
then
VAR="$1"
VALUE="$2"
echo -e "$VAR=$VALUE" >> $CONFIG
fi
}
is_var_empty () {
if [[ -z "$1" ]]
then
showusage_
cleanup
exit 1
fi
}
detect_source_dir_nfs_exported () {
#log DEBUG "Executing $FUNCNAME"
NFS=0
NFS_MOUNTED_FS=$(mount | grep ":" | cut -d ":" -f 2 | awk '{ print $3 }')
for mount in $NFS_MOUNTED_FS
do
#
# If this for loop matches anything, the SRC_DIR is NFS exported.
# inotify does not play well with NFS. So it must be disabled.
#
DIRECTORY="$SRC_DIR"
while true
do
#log DEBUG "NFS TEST: $mount vs. $DIRECTORY"
if [[ $DIRECTORY != [/.]* ]]
then
if [[ "$mount" == "$DIRECTORY" ]]
then
NFS=1
break
fi
else
break
fi
DIRECTORY=$(dirname "$DIRECTORY")
done
done
if [[ "$NFS" == "1" ]]
then
#log DEBUG "Source directory is NFS exported. Disabling inotify."
return 1
else
#log DEBUG "Source directory is NOT NFS exported. Enabling inotify."
return 0
fi
}
detect_inotify () {
if [[ -e /usr/bin/inotifywait && "$INOTIFY" != "0" ]] && detect_source_dir_nfs_exported
then
INOTIFY=1
else
INOTIFY=0
fi
}
process_arguments () {
#
# Process any command-line options that are specified."
#
if [[ "$#" == "0" ]]
then
showusage_short
exit 1
fi
while [[ $# -gt 0 ]]
do
case $1 in
--config|-C )
CONFIG="$2"
is_var_empty "$CONFIG"
if [[ "$MODE" == "config" ]]
then
if [[ -e "$CONFIG" ]]
then
echo "Do want to overwrite existing config file? [y/n]"
read yn
if [[ "$yn" == "y" ]] || [[ "$yn" == "yes" ]]
then
rm "$CONFIG"
else
echo "Aborting..."
cleanup
exit 1
fi
fi
fi
if [[ "$MODE" != "config" ]]
then
source $CONFIG
fi
if [[ ! -z "$SSH_KEY" ]]
then
SSH_KEY="-i $SSH_KEY"
fi
if [[ ! -e "./known_hosts" ]]
then
if [[ -e $SSH_KNOWN_HOSTS ]]
then
if [[ "$SSH_KNOWN_HOSTS" != "known_hosts" ]]
then
cat $SSH_KNOWN_HOSTS > ./known_hosts
fi
else
echo "File $SSH_KNOWN_HOSTS does not exist."
exit 1
fi
fi
shift 2 ;;
--working-dir|-w )
PPSS_DIR="$2"
add_var_to_config PPSS_DIR "$PPSS_DIR"
shift 2 ;;
--node|-n )
NODES_FILE="$2"
add_var_to_config NODES_FILE "$NODES_FILE"
shift 2 ;;
--sourcefile|-f )
INPUT_FILE="$2"
is_var_empty "$INPUT_FILE"
add_var_to_config INPUT_FILE "$INPUT_FILE"
shift 2 ;;
--sourcedir|-d )
SRC_DIR="$2"
is_var_empty "$SRC_DIR"
add_var_to_config SRC_DIR "$SRC_DIR"
shift 2 ;;
--delay|-D)
MAX_DELAY="$2"
add_var_to_config MAX_DELAY "$MAX_DELAY"
shift 2 ;;
--disable-inotify)
INOTIFY=0
add_var_to_config INOTIFY "$INOTIFY"
shift 1 ;;
--enable-input-lock)
ENABLE_INPUT_LOCK=1
add_var_to_config ENABLE_INPUT_LOCK "$ENABLE_INPUT_LOCK"
shift 1 ;;
--daemon)
DAEMON="1"
QUIET="1"
detect_inotify
add_var_to_config DAEMON "$DAEMON"
add_var_to_config QUIET "$QUIET"
add_var_to_config INOTIFY "$INOTIFY"
shift 1 ;;
--interval)
is_var_empty "$2"
DAEMON_POLLING_INTERVAL="$2"
add_var_to_config DAEMON_POLLING_INTERVAL "$DAEMON_POLLING_INTERVAL"
shift 2 ;;
--file-age)
is_var_empty "$2"
add_var_to_config DAEMON_FILE_AGE "$DAEMON_FILE_AGE"
shift 2 ;;
--email|-e)
is_var_empty "$2"
EMAIL="$2"
add_var_to_config EMAIL "$EMAIL"
shift 2 ;;
--command|-c )
COMMAND="$2"
is_var_empty "$COMMAND"
if [[ "$MODE" == "config" ]]
then
COMMAND=\'$COMMAND\'
add_var_to_config COMMAND "$COMMAND"
fi
shift 2 ;;
-h )
showusage_normal
exit 1 ;;
--help)
showusage_long
exit 1 ;;
--homedir|-H )
is_var_empty "$2"
PPSS_HOME_DIR="$2"
add_var_to_config PPSS_DIR $PPSS_HOME_DIR
shift 2 ;;
--disable-ht|-j )
HYPERTHREADING=no
add_var_to_config HYPERTHREADING $HYPERTHREADING
shift 1 ;;
--log|-l )
LOGFILE="$2"
add_var_to_config LOGFILE "$LOGFILE"
shift 2 ;;
--no-traversal|-r )
TRAVERSAL="0"
add_var_to_config LOGFILE "$TRAVERSAL"
shift 1 ;;
--workingdir|-w )
WORKINGDIR="$2"
add_var_to_config WORKINGDIR "$WORKINGDIR"
shift 2 ;;
--md5|-M )
USE_MD5="1"
add_var_to_config USE_MD5 "$USE_MD5"
shift 1 ;;
--key|-k )
SSH_KEY="$2"
is_var_empty "$SSH_KEY"
add_var_to_config SSH_KEY "$SSH_KEY"
if [[ ! -z "$SSH_KEY" ]]
then
SSH_KEY="-i $SSH_KEY"
fi
shift 2 ;;
--known-hosts | -K )
SSH_KNOWN_HOSTS="$2"
add_var_to_config SSH_KNOWN_HOSTS "$SSH_KNOWN_HOSTS"
shift 2 ;;
--no-scp |-b )
SECURE_COPY=0
add_var_to_config SECURE_COPY "$SECURE_COPY"
shift 1 ;;
--randomize |-R )
RANDOMIZE=1
add_var_to_config RANDOMIZE "$RANDOMIZE"
shift 1 ;;
--outputdir|-o )
REMOTE_OUTPUT_DIR="$2"
add_var_to_config REMOTE_OUTPUT_DIR "$REMOTE_OUTPUT_DIR"
shift 2 ;;
--processes|-p )
is_var_empty "$2"
MAX_NO_OF_RUNNING_JOBS="$2"
add_var_to_config MAX_NO_OF_RUNNING_JOBS "$MAX_NO_OF_RUNNING_JOBS"
shift 2 ;;
--master|-m )
SSH_SERVER="$2"
add_var_to_config SSH_SERVER "$SSH_SERVER"
shift 2 ;;
--script|-S )
SCRIPT="$2"
add_var_to_config SCRIPT "$SCRIPT"
shift 2 ;;
--debug)
PPSS_DEBUG="1"
add_var_to_config PPSS_DEBUG "$PPSS_DEBUG"
shift 1 ;;
--download)
DOWNLOAD_TO_NODE="1"
add_var_to_config DOWNLOAD_TO_NODE "$DOWNLOAD_TO_NODE"
shift 1 ;;
--upload)
if [[ -z "$REMOTE_OUTPUT_DIR" ]]
then
echo "ERROR: no server-side output directory specified with -o"
exit 1
fi
UPLOAD_TO_SERVER="1"
add_var_to_config UPLOAD_TO_SERVER "$UPLOAD_TO_SERVER"
shift 1 ;;
--quiet|-q )
QUIET="1"
add_var_to_config QUIET "$QUIET"
shift 1 ;;
--user|-u )
USER="$2"
add_var_to_config USER "$USER"
shift 2 ;;
--version|-v )
echo ""
echo "$SCRIPT_NAME version $SCRIPT_VERSION"
echo ""
exit 0 ;;
* )
showusage_short
echo
echo "Unknown option $1 "
echo
exit 1 ;;
esac
done
if [[ -z "$SRC_DIR" && -z "$INPUT_FILE" ]]
then
showusage_short
echo
echo "No source file or directory specified with -f or -d."
exit 1
fi
if [[ ! -e "$SRC_DIR" && -z "$MODE" && -z "$INPUT_FILE" ]]
then
showusage_short
echo
echo "Source directory $SRC_DIR does not exist."
exit 1
fi
if [[ "$SRC_DIR" == "." ]]
then
echo
echo "|P|P|S|S| is not designed to process items from within the directory"
echo "it is being run. PPSS will start to process its own files from"
echo "its working directory $PPSS_DIR which is probably not wat you"
echo "want. Are you sure you want to continue?"
echo
read YN
if [[ "$YN" != "y" && "$YN" != "Y" ]]
then
exit 1
fi
fi
if [[ "$DAEMON" == "1" && -z "$SRC_DIR" ]]
then
showusage_short
echo
echo "Daemon monitors a specified directory (with the -d option) for files to process."
echo "Read the on-line manual for more information."
exit 1
fi
}
display_header () {
log DSPLY ""
log DSPLY "========================================================="
log DSPLY " |P|P|S|S| "
log DSPLY "$SCRIPT_NAME vers. $SCRIPT_VERSION"
log DSPLY "========================================================="
log DSPLY "Hostname:\t\t$HOSTNAME"
log DSPLY "---------------------------------------------------------"
}
create_working_directory () {
if [[ ! -e "$PPSS_DIR" ]]
then
mkdir -p "$PPSS_DIR"
fi
}
expand_str () {
STR=$1
LENGTH=$TYPE_LENGTH
SPACE=" "
while [[ "${#STR}" -lt "$LENGTH" ]]
do
STR=$STR$SPACE
done
echo "$STR"
}
are_we_sourced () {
RES=$(basename $SOURCED)
if [[ "$RES" == "ppss" ]]
then
return 1
else
return 0
fi
}
get_time_in_seconds () {
if [[ "$ARCH" == "SunOS" ]]
then
#
# Dirty hack because this ancient operating system does not support +%s...
#
# SWB: Clever, but horrible. Use perl since I already created a dependency
# there by using it to fix sed and [[:alnum:]] not working.
# THE_TIME=$(truss /usr/bin/date 2>&1 | grep ^time | awk '{ print $3 }')
THE_TIME=$(perl -e 'print time')
else
THE_TIME="$(date +%s)"
fi
echo "$THE_TIME"
}
set_md5 () {
case $ARCH in
"Darwin") MD5=md5 ;;
"FreeBSD") MD5=md5 ;;
"SunOS") MD5="digest -a md5" ;;
"Linux") MD5=md5sum ;;
esac
echo "test" | $MD5 > /dev/null 2>&1
if [[ ! "$?" ]]
then
LOG ERROR "ERROR - PPSS requires $MD5. It may not be within the path or installed."
return 1
else
return 0
fi
}
set_stat () {
if [[ "$DAEMON" == "1" && "$INOTIFY" == "0" ]]
then
case $ARCH in
"Darwin") STAT="stat -f%m" ;;
"FreeBSD") STAT="stat -f%m" ;;
"SunOS") STAT="gstat -c%Y" ;;
"Linux") STAT="stat -c%Y" ;;
esac
$STAT . >> /dev/null 2>&1
if [[ ! "$?" ]]
then
LOG ERROR "ERROR - PPSS daemon mode requires stat. It may not be within the path or installed."
return 1
else
return 0
fi
else
return 0
fi
}
log () {
#
# Type 'DSPLY ERROR and WARN' is logged to the screen
# Any other log-type is only logged to the logfile.
#
TYPE="$1"
MESG="$2"
TYPE_LENGTH=5
#
# Performance hack. Don't go through all the code if not required.
#
if [[ "$TYPE" == "DEBUG" && "$PPSS_DEBUG" == "0" ]]
then
return
fi
TYPE_EXP=$(expand_str "$TYPE")
DATE=$(date +%b\ %d\ %H:%M:%S)
PREFIX="$DATE: ${TYPE_EXP:0:$TYPE_LENGTH}"
PREFIX_SMALL="$DATE: "
if [[ "$TYPE" != "ERROR" ]]
then
ECHO_MSG="$PREFIX_SMALL $MESG"
else
ECHO_MSG="$PREFIX_SMALL [ERROR] $MESG"
fi
LOG_MSG="$PREFIX $MESG"
if [[ ! -z "$PPSS_DEBUG" && "$PPSS_DEBUG" != "0" ]]
then
echo -e "$LOG_MSG" >> "$LOGFILE"
elif [[ "$TYPE" == "INFO" || "$TYPE" == "ERROR" || "$TYPE" == "WARN" || "$TYPE" == "DSPLY" ]]
then
echo -e "$LOG_MSG" >> "$LOGFILE"
fi
if [[ "$TYPE" == "DSPLY" || "$TYPE" == "ERROR" || "$TYPE" == "WARN" && "$QUIET" == "0" ]]
then
echo -e "$ECHO_MSG"
elif [[ "$TYPE" == "ERROR" && "$QUIET" == "1" ]]
then
echo -e "$ECHO_MSG"
fi
if [[ "$TYPE" == "PRCNT" ]]
then
echo -en "\r$ECHO_MSG"
#echo "$ECHO_MSG" # for debugging.
fi
}
init_vars () {
#
# Get start time to measure how long PPSS has been running.
#
START_PPSS=$(get_time_in_seconds)
#
# Check if MD5(SUM) is present on the system.
#
set_md5
#
# Chec if stat is present and works on the system if daemon mode is enabled.
#
set_stat
#
# Is PPSS run as a daemon? Then use input locking, which is not required otherwise.
#
if [[ "$DAEMON" == "1" ]]
then
INPUT_LOCK="$SRC_DIR/INPUT_LOCK"
fi
#
# For some strange reason, this value differ on different operating systems due to
# different behaviour betwen the ps utilily acros operating systems.
#
if [[ "$ARCH" == "Darwin" ]]
then
MIN_JOBS=4
elif [[ "$ARCH" == "Linux" ]]
then
MIN_JOBS=3
fi
FIFO="$PPSS_DIR"/ppss-fifo-$RANDOM-$RANDOM
FIFO_LISTENER="$PPSS_DIR"/ppss-fifo-listener-$RANDOM-$RANDOM
if [[ ! -e "$FIFO" ]]
then
mkfifo -m 600 $FIFO
fi
if [[ ! -e "$FIFO_LISTENER" ]]
then
mkfifo -m 600 $FIFO_LISTENER
fi
exec 42<> $FIFO
exec 43<> $FIFO_LISTENER
set_status "RUNNING"
if [[ -e "$CPUINFO" ]]
then
CPU=$(cat $CPUINFO | grep 'model name' | cut -d ":" -f 2 | sed -e s/^\ //g | sort | uniq)
log DSPLY "CPU: $CPU"
elif [[ "$ARCH" == "Darwin" ]]
then
MODEL=$(system_profiler SPHardwareDataType | grep "Processor Name" | cut -d ":" -f 2)
SPEED=$(system_profiler SPHardwareDataType | grep "Processor Speed" | cut -d ":" -f 2)
log DSPLY "CPU: $MODEL $SPEED"
elif [[ "$ARCH" == "SunOS" ]]
then
CPU=$(/usr/sbin/psrinfo -v | grep MHz | cut -d " " -f 4,8 | awk '{ printf ("Processor architecture: %s @ %s MHz.\n", $1,$2) }' | head -n 1)
log DSPLY "$CPU"
else
log DSPLY "CPU: Cannot determine. Provide a patch for your arch!"
log DSPLY "Arch is $ARCH"
fi
if [[ -z "$MAX_NO_OF_RUNNING_JOBS" ]]
then
get_no_of_cpus $HYPERTHREADING
fi
if [[ ! -z "$SSH_SERVER" ]]
then
does_file_exist "$PPSS_HOME_DIR/$JOB_LOG_DIR"
if [[ ! "$?" == "0" ]]
then
log DEBUG "Remote Job log directory $PPSS_HOME_DIR/$JOB_lOG_DIR does not exist. Creating."
exec_cmd "mkdir $PPSS_HOME_DIR/$JOB_LOG_DIR"
fi
fi
if [[ ! -e "$JOB_LOG_DIR" ]]
then
mkdir -p "$JOB_LOG_DIR"
fi
if [[ ! -z "$SSH_SERVER" ]]
then
ITEM_LOCK_DIR="$PPSS_HOME_DIR/$ITEM_LOCK_DIR"
fi
does_file_exist "$ITEM_LOCK_DIR"
if [[ ! "$?" == "0" ]]
then
if [[ ! -z "$SSH_SERVER" ]]
then
log DEBUG "Creating remote item lock dir."
else
log DEBUG "Creating local item lock dir."
fi
exec_cmd "mkdir $ITEM_LOCK_DIR"
if [[ ! "$?" ]]
then
log DEBUG "Failed to create item lock dir."
fi
fi
if [[ ! -z "$SSH_SERVER" ]]
then
does_file_exist "$REMOTE_OUTPUT_DIR"
if [[ ! "$?" == "0" ]]
then
log DEBUG "Remote output dir $REMOTE_OUTPUT_DIR does not exist."
exec_cmd "mkdir $REMOTE_OUTPUT_DIR"
fi
fi
if [[ ! -e "$PPSS_LOCAL_TMPDIR" ]]
then
mkdir "$PPSS_LOCAL_TMPDIR"
fi
if [[ ! -e "$PPSS_LOCAL_OUTPUT" ]]
then
mkdir "$PPSS_LOCAL_OUTPUT"
fi
if [[ ! -e "$PPSS_NODE_STATUS" ]]
then
mkdir -p "$PPSS_NODE_STATUS"
fi
}
upload_status () {
if [[ -e "$NODE_STATUS_FILE" ]]
then
scp -q -o GlobalKnownHostsFile=./known_hosts -i ppss-key.dsa $NODE_STATUS_FILE $USER@$SSH_SERVER:$PPSS_HOME_DIR/$PPSS_NODE_STATUS/
if [[ "$?" == "0" ]]
then
log DEBUG "Uploaded status to server ok."
else
log DEBUG "Uploaded status to server failed."
fi
else
log DEBUG "Status file not found thus not uploaded."
fi
}
set_status () {
if [[ ! -z "$SSH_SERVER" ]]
then
STATUS="$1"
if [[ -e "$LIST_OF_PROCESSED_ITEMS" ]]
then
NO_PROCESSED=$(wc -l "$LIST_OF_PROCESSED_ITEMS" | awk '{ print $1 }' )
else
NO_PROCESSED="0"
fi
NODE=$(cat $PPSS_DIR/$NODE_ID)
FAILED="$2"
if [[ -z "$FAILED" ]]
then
FAILED=0
fi
echo "$NODE $HOSTNAME $STATUS $NO_PROCESSED" "$FAILED" > "$NODE_STATUS_FILE"
upload_status
fi
}
check_status () {
ERROR="$1"
FUNCTION="$2"
MESSAGE="$3"
if [[ ! "$ERROR" == "0" ]]
then
log DSPLY "$FUNCTION - $MESSAGE"
set_status ERROR
cleanup
exit "$ERROR"
fi
}
erase_ppss () {
SSH_SOCKET="ppss_ssh_socket-$NODE"
SSH_OPTS_NODE="-o BatchMode=yes -o ControlPath=$SSH_SOCKET \
-o GlobalKnownHostsFile=./known_hosts \
-o ControlMaster=auto \
-o Cipher=blowfish \
-o ConnectTimeout=5 "
echo "Are you realy sure you want to erase PPSS from all nodes!? (YES/NO)"
read YN
if [[ "$YN" == "yes" ]] || [[ "$YN" == "YES" ]]
then
for NODE in $(cat $NODES_FILE)
do
log DSPLY "Erasing PPSS homedir $PPSS_HOME_DIR from node $NODE."
ssh -q $SSH_KEY $SSH_OPTS_NODE $USER@$NODE "rm -rf $PPSS_HOME_DIR"
done
else
log DSPLY "Aborting.."
fi
}
stack_push_tmp () {
TMP1="$1"
if [[ -z "$TMP_STACK" ]]
then
TMP_STACK="$TMP1"
else
TMP_STACK="$TMP_STACK"$'\n'"$TMP1"
fi
}
stack_push () {
line="$1"
if [[ -z "$STACK" ]]
then
STACK="$line"
else
STACK="$line"$'\n'"$STACK"
fi
}
unprocessed_stack_push () {
line="$1"
if [[ -z "$PROCESSED_ITEMS" ]]
then
UNPROCESSED_ITEMS="$line"
else
UNPROCESSED_ITEMS="$line"$'\n'"$UNPROCESSED_ITEMS"
fi
}
processed_stack_push () {
line="$1"
if [[ -z "$PROCESSED_ITEMS" ]]
then
PROCESSED_ITEMS="$line"
else
PROCESSED_ITEMS="$line"$'\n'"$PROCESSED_ITEMS"
fi
}
stack_pop () {
TMP_STACK=""
i=0
tmp=""
for x in $STACK
do
if [[ "$i" == "0" ]]
then
tmp="$x"
else
stack_push_tmp "$x"
fi
((i++))
done
STACK="$TMP_STACK"
REGISTER="$tmp"
if [[ -z "$REGISTER" ]]
then
return 1
else
return 0
fi
}
is_screen_installed () {
if [[ "$DISABLE_SCREEN_TEST" == "1" ]]
then
return 0
fi
NODE="$1"
ssh -q $SSH_OPTS_NODE $SSH_KEY $USER@$NODE "screen -m -D -S test ls" > /dev/null 2>&1
if [[ ! "$?" == "0" ]]
then
log ERROR "The 'Screen' command may not be installed on node $NODE."
log ERROR "Or some other SSH related error occurred."
return 1
else
log DEBUG "'Screen' is installed on node $NODE."
fi
}
deploy () {
NODE="$1"
SSH_SOCKET="ppss_ssh_socket-$NODE"
SSH_OPTS_NODE="-o BatchMode=yes -o ControlPath=$SSH_SOCKET \
-o GlobalKnownHostsFile=./known_hosts \
-o ControlMaster=auto \
-o Cipher=blowfish \
-o ConnectTimeout=5 "
SSH_OPTS_SLAVE="-o BatchMode=yes -o ControlPath=$SSH_SOCKET \
-o GlobalKnownHostsFile=./known_hosts \
-o ControlMaster=no \
-o Cipher=blowfish \
-o ConnectTimeout=5 "
ERROR=0
set_error () {
if [[ "$ERROR" == "1" ]]
then
ERROR=1
elif [[ ! "$1" == "0" ]]
then
ERROR=1
fi
}
if [[ ! -e "$SSH_SOCKET" ]]
then
ssh -q -N $SSH_OPTS_NODE $SSH_KEY $USER@$NODE &
SSH_PID=$!
fi
is_screen_installed "$NODE"
KEY=$(echo $SSH_KEY | cut -d " " -f 2)
ssh -q $SSH_OPTS_SLAVE $SSH_KEY $USER@$NODE "cd ~ && mkdir -p $PPSS_HOME_DIR && mkdir -p $PPSS_HOME_DIR/$JOB_LOG_DIR && mkdir -p $PPSS_HOME_DIR/ITEM_LOCK_DIR >> /dev/null 2>&1"
set_error $?
ssh -q $SSH_OPTS_SLAVE $SSH_KEY $USER@$NODE "cd ~ && cd $PPSS_HOME_DIR && cd $PPSS_DIR && echo $NODE > $NODE_ID"
set_error $?
scp -q $SSH_OPTS_SLAVE $SSH_KEY $0 $USER@$NODE:~/$PPSS_HOME_DIR
set_error $?
scp -q $SSH_OPTS_SLAVE $SSH_KEY $KEY $USER@$NODE:~/$PPSS_HOME_DIR
set_error $?
scp -q $SSH_OPTS_SLAVE $SSH_KEY $CONFIG $USER@$NODE:~/$PPSS_HOME_DIR
set_error $?
scp -q $SSH_OPTS_SLAVE $SSH_KEY known_hosts $USER@$NODE:~/$PPSS_HOME_DIR
set_error $?
if [[ ! -z "$SCRIPT" ]]
then
scp -q $SSH_OPTS_SLAVE $SSH_KEY $SCRIPT $USER@$NODE:~/$PPSS_HOME_DIR
set_error $?
fi
if [[ ! -z "$INPUT_FILE" ]]
then
scp -q $SSH_OPTS_SLAVE $SSH_KEY $INPUT_FILE $USER@$NODE:~/$PPSS_HOME_DIR
set_error $?
fi
if [[ "$ERROR" == "0" ]]
then
log DSPLY "PPSS installed on node $NODE."
else
log DSPLY "PPSS failed to install on $NODE."
fi
kill $SSH_PID
}
deploy_ppss () {
if [[ -z "$NODES_FILE" ]] || [[ ! -e "$NODES_FILE" ]]
then
log ERROR "No file containing list of nodes missing / not specified."
set_status ERROR
cleanup
exit 1
fi
exec_cmd "mkdir -p $PPSS_HOME_DIR/$PPSS_NODE_STATUS"
KEY=$(echo $SSH_KEY | cut -d " " -f 2)
if [[ -z "$KEY" ]] || [[ ! -e "$KEY" ]]
then
log ERROR "Private SSH key $KEY not found."
set_status "ERROR"
cleanup
exit 1
fi
if [[ ! -e "$SCRIPT" && ! -z "$SCRIPT" ]]
then
log ERROR "Script $SCRIPT not found."
set_status "ERROR"
cleanup
exit 1
fi
INSTALLED_ON_SSH_SERVER=0
for NODE in $(cat $NODES_FILE)
do
deploy "$NODE" &
if [[ "$ARCH" == "SunOS" ]]
then
sleep 1
else
sleep 0.1
fi
if [[ "$NODE" == "$SSH_SERVER" ]]
then
INSTALLED_ON_SSH_SERVER=1
fi
done
if [[ "$INSTALLED_ON_SSH_SERVER" == "0" ]]
then
log DEBUG "SSH SERVER $SSH_SERVER is not a node."
else
log DEBUG "SSH SERVER $SSH_SERVER is also a node."
fi
}
start_ppss_on_node () {
NODE="$1"
log DSPLY "Starting PPSS on node $NODE."
ssh $SSH_KEY $USER@$NODE -o ConnectTimeout=5 -o GlobalKnownHostsFile=./known_hosts "cd $PPSS_HOME_DIR ; screen -d -m -S PPSS ~/$PPSS_HOME_DIR/$0 node --config ~/$PPSS_HOME_DIR/$CONFIG"
if [[ ! "$?" == "0" ]]
then
log ERROR "|P|P|S|S| failed to start on node $NODE."
fi
}
init_ssh_server_socket () {
if [[ ! -e "$SSH_SOCKET" ]]
then
DIR=$(dirname $SSH_SOCKET)
mkdir -p "$DIR"
fi
}
test_server () {
# Testing if the remote server works as expected.
if [[ ! -z "$SSH_SERVER" ]]
then
init_ssh_server_socket
exec_cmd "date >> /dev/null"
check_status "$?" "$FUNCNAME" "Server $SSH_SERVER could not be reached"
ssh -N -M $SSH_OPTS $SSH_KEY $USER@$SSH_SERVER &
SSH_MASTER_PID="$!"
log DEBUG "SSH Master pid is $SSH_MASTER_PID"
log INFO "Connected to server: $SSH_SERVER"
does_file_exist "$PPSS_HOME_DIR/$PPSS_DIR"
if [[ ! "$?" == "0" && ! -z "$SSH_SERVER" ]]
then
log DEBUG "Remote PPSS home directory $PPSS_HOME_DIR/$PPSS_DIR does not exist. Creating."
exec_cmd "mkdir -p $PPSS_HOME_DIR/$PPSS_DIR"
fi
else
log DEBUG "No remote server specified, assuming stand-alone mode."
fi
}
get_no_of_cpus () {
# Use hyperthreading or not?
HPT=$1
NUMBER=""
if [[ -z "$HPT" ]]
then
HPT=yes
fi
got_cpu_info () {
ERROR="$1"
check_status "$ERROR" "$FUNCNAME" "cannot determine number of cpu cores. Specify with -p."
}
if [[ "$HPT" == "yes" ]]
then
if [[ "$ARCH" == "Linux" ]]
then
NUMBER=$(grep -c ^processor $CPUINFO)
got_cpu_info "$?"
elif [[ "$ARCH" == "Darwin" ]]
then
NUMBER=$(sysctl -a hw | grep -w logicalcpu | awk '{ print $2 }')
got_cpu_info "$?"
elif [[ "$ARCH" == "FreeBSD" ]]
then
NUMBER=$(sysctl hw.ncpu | awk '{ print $2 }')
got_cpu_info "$?"
elif [[ "$ARCH" == "SunOS" ]]
then
NUMBER=$(psrinfo | grep -c on-line)
got_cpu_info "$?"
else
if [[ -e "$CPUINFO" ]]
then
NUMBER=$(grep -c ^processor $CPUINFO)
got_cpu_info "$?"
fi
fi
if [[ ! -z "$NUMBER" ]]
then
log DSPLY "Found $NUMBER logic processors."
fi
elif [[ "$HPT" == "no" ]]
then
log DSPLY "Hyperthreading is disabled."
if [[ "$ARCH" == "Linux" ]]
then
PHYSICAL=$(grep 'physical id' $CPUINFO)
if [[ "$?" ]]
then
PHYSICAL=$(grep 'physical id' $CPUINFO | sort | uniq | wc -l)
if [[ "$PHYSICAL" == "1" ]]
then
log DSPLY "Found $PHYSICAL physical CPU."
else
log DSPLY "Found $PHYSICAL physical CPUs."
fi
TMP=$(grep 'core id' $CPUINFO)
if [[ "$?" ]]
then
log DEBUG "Starting job only for each physical core on all physical CPU(s)."
NUMBER=$(grep 'core id' $CPUINFO | sort | uniq | wc -l)
log DSPLY "Found $NUMBER physical cores."
else
log DSPLY "Single core processor(s) detected."
log DSPLY "Starting job for each physical CPU."
NUMBER=$PHYSICAL
fi
else
log INFO "No 'physical id' section found in $CPUINFO, typical for older cpus."
NUMBER=$(grep -c ^processor $CPUINFO)
got_cpu_info "$?"
fi
elif [[ "$ARCH" == "Darwin" ]]
then
NUMBER=$(sysctl -a hw | grep -w physicalcpu | awk '{ print $2 }')
got_cpu_info "$?"
elif [[ "$ARCH" == "FreeBSD" ]]
then
NUMBER=$(sysctl hw.ncpu | awk '{ print $2 }')
got_cpu_info "$?"
else
NUMBER=$(cat $CPUINFO | grep "cpu cores" | cut -d ":" -f 2 | uniq | sed -e s/\ //g)
got_cpu_info "$?"
fi
fi
if [[ ! -z "$NUMBER" ]]
then
MAX_NO_OF_RUNNING_JOBS=$NUMBER
else
log ERROR "Number of CPUs not obtained."
log ERROR "Please specify manually with -p."
set_status "ERROR"
exit 1
fi
}
random_delay () {
ARGS="$1"
if [[ -z "$ARGS" ]]
then
log ERROR "$FUNCNAME Function random delay, no argument specified."
set_status "ERROR"
exit 1
fi
NUMBER=$RANDOM
let "NUMBER %= $ARGS"
sleep "$NUMBER"
}
escape_item () {
TMP="$1"
ITEM_ESCAPED=`echo "$TMP" | \
sed s/\\ /\\\\\\\\\\\\\\ /g | \
sed s/\\'/\\\\\\\\\\\\\\'/g | \
sed s/\\|/\\\\\\\\\\\\\\|/g | \
sed s/\&/\\\\\\\\\\\\\\&/g | \
sed s/\;/\\\\\\\\\\\\\\;/g | \
sed s/\>/\\\\\\\\\\>/g | \
sed s/\</\\\\\\\\\\</g | \
sed s/\(/\\\\\\\\\\(/g | \
sed s/\)/\\\\\\\\\\)/g `
}
download_item () {
if [[ ! "$DOWNLOAD_TO_NODE" == "1" ]] || [[ "$VIRTUAL" == "1" ]]
then
return 1
fi
ITEM="$1"
VIRTUAL="0"
ERR_STATE="0"
HASH=""
if [[ "$TRAVERSAL" == "1" ]]
then
escape_item "$ITEM"
does_file_exist "$ITEM_ESCAPED"
ERR_STATE="$?"
DOWNLOAD_ITEM="$ITEM"
HASH=$(echo "$DOWNLOAD_ITEM" | $MD5 | awk '{ print $1 }')
LOCAL_DIR="$HASH"
else
escape_item "$ITEM"
does_file_exist "$SRC_DIR/$ITEM_ESCAPED"
ERR_STATE="$?"
DOWNLOAD_ITEM="$SRC_DIR/$ITEM"
fi
if [[ "$ERR_STATE" == "0" ]]
then
log DEBUG "$FUNCNAME Remote item $ITEM exists"
VIRTUAL=0
else
log DEBUG "$FUNCNAME Remote item $ITEM does NOT exist"
VIRTUAL=1
fi
if [[ "$DOWNLOAD_TO_NODE" == "1" && "$VIRTUAL" == "0" ]]
then
log DEBUG "Transfering item $ITEM from source to local disk."
if [[ "$SECURE_COPY" == "1" && ! -z "$SSH_SERVER" ]]
then
if [[ "$TRAVERSAL" == "1" ]]
then
escape_item "$DOWNLOAD_ITEM"
mkdir -p "$PPSS_LOCAL_TMPDIR/$LOCAL_DIR"
log DEBUG "$SSH_SERVER:$ITEM_ESCAPED $PPSS_LOCAL_TMPDIR/$LOCAL_DIR"
scp -q $SSH_OPTS $SSH_KEY $USER@$SSH_SERVER:"$ITEM_ESCAPED" ./$PPSS_LOCAL_TMPDIR/"$LOCAL_DIR"
else
escape_item "$DOWNLOAD_ITEM"
log DEBUG "$SSH_SERVER:$ITEM_ESCAPED $PPSS_LOCAL_TMPDIR"
scp -q $SSH_OPTS $SSH_KEY $USER@$SSH_SERVER:"$ITEM_ESCAPED" $PPSS_LOCAL_TMPDIR
fi
log DEBUG "Exit code of remote download transfer is $?"
else
if [[ "$TRAVERSAL" == "1" ]]
then
mkdir -p "$PPSS_LOCAL_TMPDIR/$LOCAL_DIR"
cp "$DOWNLOAD_ITEM" "$PPSS_LOCAL_TMPDIR/$LOCAL_DIR"
log DEBUG "Exit code of local transfer is $?"
else
cp "$DOWNLOAD_ITEM" "$PPSS_LOCAL_TMPDIR/"
log DEBUG "Exit code of local transfer is $?"
fi
fi
else
log DEBUG "No transfer of item $ITEM to local workpath."
fi
}
upload_item () {
if [[ ! "$UPLOAD_TO_SERVER" == "1" ]]
then
log DEBUG "Upload to server is disabled."
return 1
fi
log DEBUG "Upload from node to server - $1 to $2"
LOCAL_SRC_DIR="$1" # the local source directory where the file resides
REMOTE_DEST_DIR="$2" # to recreate the directory structure
DESTINATION=""
if [[ "$TRAVERSAL" == "1" ]]
then
log DEBUG "Recursive copy is enabled."
TMP_DESTINATION="$REMOTE_OUTPUT_DIR/$REMOTE_DEST_DIR"
else
log DEBUG "Recursive copy is disabled."
TMP_DESTINATION="$REMOTE_OUTPUT_DIR"
fi
exec_cmd "mkdir -p \"$TMP_DESTINATION\""
escape_item "$TMP_DESTINATION"
DESTINATION="$ITEM_ESCAPED"
log DEBUG "Destination == $DESTINATION"
log DEBUG "Uploading item $LOCAL_SRC_DIR."
if [[ "$SECURE_COPY" == "1" ]]
then
log DEBUG "Secure copy is enabled."
log DEBUG "Copy contents of $LOCAL_SRC_DIR to server at $DESTINATION"
scp $SSH_OPTS $SSH_KEY $LOCAL_SRC_DIR/* $USER@$SSH_SERVER:"$DESTINATION"
ERROR="$?"
if [[ ! "$ERROR" == "0" ]]
then
log ERROR "Uploading of $LOCAL_SRC_DIR via SCP to $DIR_ESCAPED failed."
else
log DEBUG "Upload of item $LOCAL_SRC_DIR to $DIR_ESCAPED success"
rm -rf ./"$LOCAL_SRC_DIR"
fi
else
log DEBUG "Secure copy is disabled - using regular cp."
cp "$LOCAL_SRC_DIR"/* "$TMP_DESTINATION"
if [[ ! "$?" == "0" ]]
then
log DEBUG "ERROR - uploading of $LOCAL_SRC_DIR via CP to $DESTINATION failed."
fi
fi
}
lock_item () {
if [[ "$INOTIFY" == "1" && "$DAEMON" == "1" ]]
then
#
# In daemon mode, there is no risk that processes try to process
# the same item. Therefore, locking is not required.
#
return 0
else
ITEM="$1"
LOCK_FILE_NAME=$(echo "$ITEM" | $MD5 | awk '{ print $1 }')
ITEM_LOCK_FILE="$ITEM_LOCK_DIR/$LOCK_FILE_NAME"
log DEBUG "Locking item $ITEM_LOCK_FILE"
exec_cmd "mkdir $ITEM_LOCK_FILE >> /dev/null 2>&1"
ERROR="$?"
return "$ERROR"
fi
}
get_input_lock () {
while true
do
exec_cmd "mkdir $INPUT_LOCK >> /dev/null 2>&1 "
if [[ "$?" ]]
then
log DEBUG "Input lock is obtained..."
break
else
log DEBUG "Input lock is present...sleeping.."
sleep 5
fi
done
}
release_input_lock () {
exec_cmd "rm -rf $INPUT_LOCK"
if [[ "$?" ]]
then
log DEBUG "Input lock was released..."
return 0
else
log ERROR "Input lock was already gone...this should never happen..."
return 1
fi
}
list_all_input_items () {
oldIFS=$IFS # save the field separator
IFS=$'\n' # new field separator, the end of line
while read line
do
echo "$line"
done < "$LISTOFITEMS"
IFS="$oldIFS"
}
remove_processed_items_from_input_file () {
#
# This function removes all items that have already been processed.
# Processed items have a lock dir in the PPPSS_ITEM_LOCK_DIR.
#
if [[ -e "$LIST_OF_PROCESSED_ITEMS" ]]
then
PROCESSED_ITEMS=$(cat $LIST_OF_PROCESSED_ITEMS)
fi
log DEBUG "Running $FUNCNAME"
if [[ -z "$PROCESSED_ITEMS" ]]
then
log DEBUG "Variable processed_items is empty."
return 1
fi
if [[ "$MODE" == "status" ]]
then
log DEBUG "Mode is status."
return 1
fi
if [[ ! -e "$LISTOFITEMS" ]]
then
echo "$LISTOFITEMS does not exist!"
return 1
else
SIZE=$(wc -l "$LISTOFITEMS")
if [[ "$SIZE" == "0" ]]
then
echo "$LISTOFITEMS exists but is empty."
return 1
fi
fi
INPUTFILES=$(list_all_input_items)
OUT_FILE=$PPSS_DIR/out-file-$RANDOM$RANDOM$RANDOM$RAMDOM
LIST_SORTED=$PPSS_DIR/list-sorted-$RANDOM$RANDOM$RANDOM$RANDOM
PROCESSED_SORTED=$PPSS_DIR/processed-sorted-$RANDOM$RANDOM$RANDOM$RANDOM
cat "$LISTOFITEMS" | sort > "$LIST_SORTED"
cat "$LIST_OF_PROCESSED_ITEMS" | sort > "$PROCESSED_SORTED"
comm -3 $LIST_SORTED $PROCESSED_SORTED > $OUT_FILE
mv "$OUT_FILE" "$LISTOFITEMS"
}
get_all_items () {
if [[ "$DAEMON" == "1" && "$INOTIFY" == "0" ]] && [[ "$ENABLE_INPUT_LOCK" == "1" ]]
then
get_input_lock
fi
GLOBAL_COUNTER=1
if [[ -e "$LISTOFITEMS" ]]
then
rm "$LISTOFITEMS"
fi
count=0
if [[ -z "$INPUT_FILE" ]]
then
if [[ ! -z "$SSH_SERVER" ]] # Are we running stand-alone or as a node?"
then
if [[ "$TRAVERSAL" == "1" ]]
then
$(exec_cmd "find $SRC_DIR/ ! -type d" > "$LISTOFITEMS")
check_status "$?" "$FUNCNAME" "Could not list files within remote source directory."
else
log DEBUG "Recursion is disabled."
if [[ "$ARCH" != "SunOS" ]]
then
$(exec_cmd "find $SRC_DIR/ -maxdepth 1 ! -type d" > "$LISTOFITEMS")
else
# SWB: -depth takes no arguments. I think he meant to use
# -maxdepth to limit search to just the source directory
# (But that won't work on Solaris.) Try the -prune workaround
# Use this to work around a problem using -name with an
# embedded / when SRC_DIR is more than one level deep.
_dir_basename=`basename "$SRC_DIR"`
$(exec_cmd "find \"$SRC_DIR\" ( ! -name \"$_dir_basename\" -o -type f ) -prune ! -type d -print" > "$LISTOFITEMS")
fi
check_status "$?" "$FUNCNAME" "Could not list files within remote source directory."
fi
else
if [[ -e "$SRC_DIR" ]]
then
if [[ "$TRAVERSAL" == "1" ]]
then
log DEBUG "Recursion is enabled."
$(find "$SRC_DIR"/ ! -type d >> "$LISTOFITEMS")
check_status "$?" "$FUNCNAME" "Could not list files within local source directory."
else
log DEBUG "Recursion is disabled."
if [[ "$ARCH" != "SunOS" ]]
then
$(find "$SRC_DIR"/ -maxdepth 1 ! -type d >> "$LISTOFITEMS")
else
#
# SWB: see above depth vs. maxdepth comment and Solaris
# brain-deadness workaround.
# Use this to work around a problem using -name with an
# embedded / when SRC_DIR is more than one level deep.
_dir_basename=`basename "$SRC_DIR"`
$(find "$SRC_DIR" \( ! -name "$_dir_basename" -o -type f \) -prune ! -type d -print > "$LISTOFITEMS")
fi
check_status "$?" "$FUNCNAME" "Could not list files within local source directory."
fi
if [[ ! -e "$LISTOFITEMS" ]]
then
log ERROR "Local input file is not created, something is wrong. Bug?"
set_status "ERROR"
cleanup
exit 1
fi
else
ITEMS=""
fi
fi
else # Using an input file as the source of our items or STDIN.
if [[ ! -z "$SSH_SERVER" ]] # Are we running stand-alone or as a slave?"
then
log DEBUG "Running as node, input file has been pushed (hopefully)."
fi
if [[ ! -e "$INPUT_FILE" && ! "$INPUT_FILE" == "-" ]]
then
log ERROR "Input file $INPUT_FILE does not exist."
set_status "ERROR"
cleanup
exit 1
fi
if [[ ! "$INPUT_FILE" == "-" ]]
then
cp "$INPUT_FILE" "$LISTOFITEMS"
check_status "$?" "$FUNCNAME" "Copy of input file failed!"
else
log DEBUG "Reading from stdin.."
while read LINE
do
echo "$LINE" >> "$LISTOFITEMS"
done
fi
if [[ ! -e "$LISTOFITEMS" ]]
then
log ERROR "Input is empty."
infanticide
terminate_listener
cleanup
fi
fi
if [[ "$RANDOMIZE" == "1" && "$MODE" != "status" ]]
then
log DEBUG "Randomizing input file."
IFS_BACK="$IFS"
IFS=$'\n'
TMP_FILE="$PPSS_DIR/TMP-$RANDOM$RANDOM.txt"
for i in $(cat $LISTOFITEMS); do echo "$RANDOM $i"; done | sort | sed -E 's/^[0-9]+ //' > "$TMP_FILE"
mv "$TMP_FILE" "$LISTOFITEMS"
IFS="$IFS_BACK"
else
log DEBUG "Randomisation of input file disabled."
fi
remove_processed_items_from_input_file
if [[ "$DAEMON" == "1" ]]
then
release_input_lock
fi
SIZE_OF_INPUT=$(wc -l "$LISTOFITEMS" | awk '{ print $1 }')
if [[ "$SIZE_OF_INPUT" -le "0" && "$DAEMON" == "0" ]]
then
log ERROR "Source file/dir seems to be empty."
set_status "STOPPED"
cleanup
exit 1
fi
}
are_all_items_locked () {
SIZE="$1"
NUMBER=$(exec_cmd "ls -1 $ITEM_LOCK_DIR | wc -l")
log DEBUG "$NUMBER of $SIZE items are locked."
if [[ "$NUMBER" -ge "$SIZE" ]]
then
return 0
else
return 1
fi
}
get_item () {
check_for_interrupt
if [[ "$STOP" == "1" ]]
then
log DEBUG "Found stop signal."
return 1
fi
#
# Return error if list size is empty.
#
if [[ -z "$SIZE_OF_INPUT" ]]
then
log DEBUG "Got no size of input..."
return 1
fi
#
# Return error if the list is empty.
#
if [[ "$SIZE_OF_INPUT" -le "0" ]]
then
return 1
fi
#
# Check if all items have been processed.
#
if [[ "$GLOBAL_COUNTER" -gt "$SIZE_OF_INPUT" ]]
then
log DEBUG "Counter $GLOBAL_COUNTER is greater than sizeof input $SIZE_OF_INPUT."
return 1
fi
#
# Quit if all items have been locked.
#
if are_all_items_locked "$SIZE_OF_INPUT"
then
log DEBUG "All items have been locked."
return 1
else
log DEBUG "There are still unlocked items."
fi
ITEM="$(sed -n $GLOBAL_COUNTER\p $LISTOFITEMS)"
if [[ -z "$ITEM" ]]
then
log DEBUG "Item was emtpy..."
((GLOBAL_COUNTER++))
get_item
else
((GLOBAL_COUNTER++))
if [[ ! -z "$SSH_SERVER" ]] || [[ "$LOCAL_LOCKING" == "1" ]]
then
lock_item "$ITEM"
LOCK="$?"
if [[ ! "$LOCK" == "0" ]]
then
log DEBUG "Item $ITEM is locked."
get_item
else
log DEBUG "Got lock on $ITEM"
return 0
fi
else
return 0
fi
fi
}
start_new_worker () {
#
# This function kicks the listener to start a worker process.
#
if ! are_we_sourced
then
echo "$START_KEY" >> "$FIFO"
return $?
fi
}
stop-ppss () {
STOP_PPSS=$(get_time_in_seconds)
elapsed "$START_PPSS" "$STOP_PPSS"
log DSPLY "$PROCESSING_TIME"
}
elapsed () {
BEFORE="$1"
AFTER="$2"
ELAPSED="$(expr $AFTER - $BEFORE)"
REMAINDER="$(expr $ELAPSED % 3600)"
HOURS="$(expr $(expr $ELAPSED - $REMAINDER) / 3600)"
SECS="$(expr $REMAINDER % 60)"
MINS="$(expr $(expr $REMAINDER - $SECS) / 60)"
PROCESSING_TIME=$(printf "Total processing time (hh:mm:ss): %02d:%02d:%02d" $HOURS $MINS $SECS)
}
mail_on_error () {
ITEM="$1"
LOGFILE="$2"
if [[ "$MAIL_ON_ERROR" == "1" ]]
then
cat "$LOGFILE" | mail -s "$HOSTNAME - PPSS: procesing failed for item." "$EMAIL"
if [[ "$?" == "0" ]]
then
log DEBUG "Error mail sent."
else
log ERROR "Sending of error email failed."
fi
fi
}
add_item_to_failed_list () {
ITEM="$1"
get_input_lock
echo "$ITEM" >> "$FAILED_ITEMS"
release_input_lock
}
commando () {
#
# This function will start a chain reaction of events.
#
# The commando executes a command on an item and, when finished,
# executes the start_new_worker. This function selects a new
# item and sends it to the fifo. The listener process receives
# the item and excutes this commando function on the item.
# So in essence, the commando function keeps calling itself
# indirectly until no items are left. This will form a single
# working queue. By executing multiple start_new_worker
# functions based on the CPU cores available, parallel processing
# is achieved, with a queue for each core.
#
ERR_STATE=0
VIRTUAL=0
#
# This code tests if the item exist (is physical or virtuel)
# Example: a file is physical, a URL is virtual.
#
ITEM="$1"
ORIG_ITEM="$ITEM"
#log DEBUG "$FUNCNAME is processing item $ITEM"
if [[ "$TRAVERSAL" == "1" ]]
then
escape_item "$ITEM"
does_file_exist "$ITEM_ESCAPED" # The item contains the full path.
ERR_STATE="$?"
else
escape_item "$ITEM"
does_file_exist "$SRC_DIR/$ITEM_ESCAPED" # The item is only the file name itself.
ERR_STATE="$?"
fi
#
# If recursion is used, a file name of an item may not be unique.
# The same filename can be used for files in differen directories.
# Therefore, the output directory must reflect the original directory
# structure. If recursion is not used, this is not necessary.
#
# Further more, if the item is not a real world object but a string of sort
# the item is considered virtual. No recursion.
#
if [[ "$ERR_STATE" == "0" ]]
then
VIRTUAL="0"
if [[ "$TRAVERSAL" == "1" ]]
then
ITEM_DIR_NAME=$(dirname "$ITEM" | sed s:$SRC_DIR::g)
ITEM_BASE_NAME=$(basename "$ITEM")
HASH=$(echo "$ITEM" | $MD5 | awk '{ print $1 }')
if [[ "$UPLOAD_TO_SERVER" == "1" ]]
then
OUTPUT_DIR=$PPSS_LOCAL_OUTPUT/"$HASH"
else
if [[ -z "$REMOTE_OUTPUT_DIR" ]]
then
OUTPUT_DIR="$PPSS_LOCAL_OUTPUT"
else
OUTPUT_DIR="$REMOTE_OUTPUT_DIR/$ITEM_DIR_NAME"
fi
fi
else
ITEM_DIR_NAME="$SRC_DIR"
ITEM_BASE_NAME="$ITEM"
escape_item "$ITEM_BASE_NAME"
if [[ "$UPLOAD_TO_SERVER" == "1" ]]
then
OUTPUT_DIR=$PPSS_LOCAL_OUTPUT/"$ITEM_ESCAPED"
else
OUTPUT_DIR="$REMOTE_OUTPUT_DIR"
fi
fi
else
VIRTUAL="1"
ITEM_DIR_NAME=""
ITEM_BASE_NAME="$ITEM"
escape_item "$ITEM_BASE_NAME"
if [[ "$UPLOAD_TO_SERVER" == "1" ]]
then
OUTPUT_DIR=$PPSS_LOCAL_OUTPUT/"$ITEM_ESCAPED"
else
if [[ -z "$REMOTE_OUTPUT_DIR" ]]
then
OUTPUT_DIR="$PPSS_LOCAL_OUTPUT"
else
OUTPUT_DIR="$REMOTE_OUTPUT_DIR"
fi
fi
fi
OUTPUT_FILE="$ITEM_BASE_NAME"
#
# Decide if an item must be transfered from server to the node.
# or be processed in-place (NFS / SMB mount?)
#
if [[ "$DOWNLOAD_TO_NODE" == "0" ]]
then
if [[ "$VIRTUAL" == "1" ]]
then
log DEBUG "Item is virtual, thus not downloading."
else
log DEBUG "Using item straight from the server, no copy."
if [[ "$TRAVERSAL" == "0" ]]
then
ITEM="$SRC_DIR/$ITEM"
else
ITEM="$ITEM"
fi
fi
else
download_item "$ITEM"
if [[ "$TRAVERSAL" == "1" ]]
then
ITEM="$PPSS_LOCAL_TMPDIR/$HASH/$ITEM_BASE_NAME"
else
ITEM="$PPSS_LOCAL_TMPDIR/$ITEM_BASE_NAME"
fi
fi
#
# Create the log file containing the output of the command.
#
if [[ "$USE_MD5" == "1" ]]
then
LOG_FILE_NAME=$(echo "$ITEM" | $MD5 | awk '{ print $1 }')
else
if [[ "$ARCH" != "SunOS" ]]
then
LOG_FILE_NAME=$(echo "$ITEM" | sed s/[^[:alnum:]]/_/g)
else
LOG_FILE_NAME=$(echo "$ITEM" | perl -p -e 'chomp;s/\W/_/g')
fi
fi
ITEM_LOG_FILE="$JOB_LOG_DIR/$LOG_FILE_NAME"
if [[ -e "$ITEM_LOG_FILE" && "$DISABLE_SKIPPING" == "0" ]]
then
log DEBUG "Item is already processed, skipping..."
start_new_worker
return 0
fi
#
# Create the local output directory.
#
if [[ ! -z "$OUTPUT_DIR" ]]
then
log DEBUG "Creating local output dir $OUTPUT_DIR"
mkdir -p "$OUTPUT_DIR"
fi
ERROR=""
#
# Some formatting of item log files.
#
DATE=$(date +%b\ %d\ %H:%M:%S)
echo "===== PPSS Item Log File =====" > "$ITEM_LOG_FILE"
echo -e "Host:\t\t$HOSTNAME" >> "$ITEM_LOG_FILE"
echo -e "Process:\t$PID" >> "$ITEM_LOG_FILE"
echo -e "Item:\t\t$ITEM" >> "$ITEM_LOG_FILE"
echo -e "Start date:\t$DATE" >> "$ITEM_LOG_FILE"
echo -e "" >> "$ITEM_LOG_FILE"
#-->#
#--># The actual execution of the command as specified by
#--># the -c option.
#-->#
# Check for "$ITEM" or "${ITEM" in the command line.
# ${ITEM} allows the usage of string operations.
BEFORE=$(get_time_in_seconds)
# SWB: Solaris default grep (/usr/bin/grep) doesn't support -E
if [[ "$ARCH" == "SunOS" ]]
then
echo "$COMMAND" | /usr/xpg4/bin/grep -E -i '\$\{?ITEM' >> /dev/null 2>&1
RETVAL="$?"
else
echo "$COMMAND" | grep -E -i '\$\{?ITEM' >> /dev/null 2>&1
RETVAL="$?"
fi
if [[ "$RETVAL" == "0" ]]
then
eval "$COMMAND" >> "$ITEM_LOG_FILE" 2>&1
ERROR="$?"
MYPID="$!"
else
eval '$COMMAND"$ITEM" >> "$ITEM_LOG_FILE" 2>&1'
ERROR="$?"
MYPID="$!"
fi
AFTER=$(get_time_in_seconds)
echo -e "" >> "$ITEM_LOG_FILE"
# Some error logging. Success or fail.
if [[ ! "$ERROR" == "0" ]]
then
mail_on_error "$ITEM" "$ITEM_LOG_FILE"
log DEBUG "Processing Item $ITEM failed."
echo "$FAIL_KEY" >> "$FIFO"
echo -e "Status:\t\tFAILURE" >> "$ITEM_LOG_FILE"
add_item_to_failed_list "$ORIG_ITEM"
else
echo -e "Status:\t\tSUCCESS" >> "$ITEM_LOG_FILE"
fi
#
# If part of a cluster, remove the downloaded item after
# it has been processed and uploaded as not to fill up disk space.
#
if [[ "$DOWNLOAD_TO_NODE" == "1" ]]
then
if [[ -e "$ITEM" ]]
then
rm -rf "$ITEM"
else
log DEBUG "There is no local file to remove.. strange..."
fi
fi
#
# Upload the output file back to the server.
#
if [[ "$UPLOAD_TO_SERVER" == "1" ]]
then
log DEBUG "Upload $OUTPUT_DIR and ITEM DIR NAME IS $ITEM_DIR_NAME"
if [[ "$ITEM_DIR_NAME" == "." ]]
then
ITEM_DIR_NAME=""
fi
upload_item "$OUTPUT_DIR" "$ITEM_DIR_NAME" # local output directory / original item dir path
else
log DEBUG "Uploading disabled."
fi
#
# Upload the log file to the server.
#
elapsed "$BEFORE" "$AFTER"
echo "$PROCESSING_TIME" >> "$ITEM_LOG_FILE"
echo -e "" >> "$ITEM_LOG_FILE"
if [[ ! -z "$SSH_SERVER" ]]
then
scp -q $SSH_OPTS $SSH_KEY "$ITEM_LOG_FILE" $USER@$SSH_SERVER:$PPSS_HOME_DIR/$JOB_LOG_DIR
if [[ ! "$?" ]]
then
log DEBUG "Uploading of item log file failed."
fi
fi
start_new_worker
}
infanticide () {
log DEBUG "Running $FUNCNAME"
#
# This code is run if ctrl+c is pressed. Very important to prevent
# any child processes running after the parent has died. Keeps the system clean.
#
# This command kills all processes that are related to the master
# process as defined by $PID. All processes that have ever been
# spawned, although disowned or backgrounded will be killed...
#
# SWB: Fix ps command on Solaris, uses -e instead of a for all procs
# and "comm" instead of "command" in the format specification.
if [[ "$ARCH" == "SunOS" ]]
then
PROCLIST=$(ps -e -o pid,pgid,ppid,comm | grep [0-9] | grep $PID | grep -v -i grep)
else
PROCLIST=$(ps a -o pid,pgid,ppid,command | grep [0-9] | grep $PID | grep -v -i grep)
fi
oldIFS=$IFS # save the field separator
IFS=$'\n' # new field separator, the end of line
for x in $(echo "$PROCLIST")
do
MYPPID=$(echo $x | awk '{ print $3 }')
MYPID=$(echo $x | awk '{ print $1 }')
if [[ ! "$MYPPID" == "$PID" && ! "$MYPPID" == "1" ]]
then
if [[ ! "$MYPID" == "$PID" ]]
then
log DEBUG "Killing process $MYPID"
kill $MYPID >> /dev/null 2>&1
else
log DEBUG "Not killing master process..$MYPID.."
fi
else
log DEBUG "Not killing listener process. $MYPID.."
fi
done
IFS=$oldIFS
}
run_command () {
INPUT="$1"
log DEBUG "Current active workers is $ACTIVE_WORKERS"
if [[ "$ACTIVE_WORKERS" -lt "$MAX_NO_OF_RUNNING_JOBS" ]]
then
if [[ -z "$INPUT" ]]
then
stack_pop
INPUT="$REGISTER"
fi
log INFO "Now processing $INPUT"
if [[ ! -z "$INPUT" && ! -d "$INPUT" ]]
then
commando "$INPUT" &
MYPID="$!"
disown
PIDS="$PIDS $MYPID"
((ACTIVE_WORKERS++))
log DEBUG "Increasing active workers to $ACTIVE_WORKERS"
echo "$INPUT" >> "$LIST_OF_PROCESSED_ITEMS"
return 0
else
log DEBUG "Item is a directory or is empty."
return 0
fi
else
log DEBUG "Maximum number of workers are bussy, no more additional workers..."
fi
}
display_jobs_remaining () {
if [[ "$ACTIVE_WORKERS" == "1" && "$QUIET" == "0" ]]
then
log PRCNT "One job is remaining. "
elif [[ "$QUIET" == "0" ]]
then
if [[ "$ACTIVE_WORKERS" == "1" ]]
then
echo -en "\n"
fi
log PRCNT "$((ACTIVE_WORKERS)) jobs are remaining. "
fi
}
show_eta () {
CURRENT_PROCESSED=$((GLOBAL_COUNTER-MAX_NO_OF_RUNNING_JOBS))
TOTAL="$SIZE_OF_INPUT"
START_TIME=$START_PPSS
NOW=$(get_time_in_seconds)
MODULO=$((GLOBAL_COUNTER % 5 ))
if [[ "$QUIET" == "1" ]]
then
return 0
fi
if [[ "$CURRENT_PROCESSED" -le "0" ]]
then
return 0
else
if [[ "$MODULO" == "0" ]]
then
RUNNING_TIME=$((NOW-START_TIME))
if [[ ! "$RUNNING_TIME" -le "0" && ! "$CURRENT_PROCESSED" == "0" ]] && [[ "$CURRENT_PROCESSED" -gt "$MAX_NO_OF_RUNNING_JOBS" ]]
then
TIME_PER_ITEM=$(( RUNNING_TIME / ( CURRENT_PROCESSED - MAX_NO_OF_RUNNING_JOBS ) ))
log DEBUG "Time per item is $TIME_PER_ITEM seconds."
TOTAL_TIME=$(( ($TIME_PER_ITEM * SIZE_OF_INPUT) + $TIME_PER_ITEM ))
TOTAL_TIME_IN_SECONDS=$((START_TIME+TOTAL_TIME))
if [[ "$ARCH" == "Darwin" ]]
then
DATE=$(date -r $TOTAL_TIME_IN_SECONDS)
elif [[ "$ARCH" == "SunOS" ]]
then
# SWB: Hack around Solaris' feeble date command
DATE=$(perl -e "print scalar localtime($TOTAL_TIME_IN_SECONDS)")
else
DATE=$(date -d @$TOTAL_TIME_IN_SECONDS)
fi
echo
log DSPLY "ETA: $DATE"
echo -en "\033[2A"
fi
fi
fi
}
display_progress () {
if [[ "$DAEMON" == "0" ]]
then
SIZE_OF_INPUT=$(wc -l "$LISTOFITEMS" | awk '{ print $1 }')
GC=0
if [[ ! "$GLOBAL_COUNTER" -gt "$SIZE_OF_INPUT" ]]
then
GC="$GLOBAL_COUNTER"
else
GC="$SIZE_OF_INPUT"
fi
PERCENT=$((100 * $GC / $SIZE_OF_INPUT ))
if [[ ! "$ACTIVE_WORKERS" == "0" ]] # && [[ "$FINISHED" == "0" ]]
then
if [[ "$QUIET" == "0" ]]
then
log PRCNT "$PERCENT% complete. Processed $GC of $SIZE_OF_INPUT. Failed $FAILED_ITEMS_COUNTER/$SIZE_OF_INPUT."
show_eta
elif [[ "$DAEMON" == "0" ]]
then
echo -en "\r$PERCENT% --"
fi
if [[ "$PERCENT" == "100" ]]
then
if [[ "$QUIET" == "1" ]]
then
echo
fi
FINISHED=1
fi
fi
fi
}
terminate_listener () {
GLOBAL_FAILED_COUNTER="$1"
log DEBUG "Running $FUNCNAME"
if [[ ! -z "$SSH_MASTER_PID" ]]
then
kill "$SSH_MASTER_PID"
else
log DEBUG "SSH master PID is empty."
fi
set_status "STOPPED" "$GLOBAL_FAILED_COUNTER"
log DEBUG "Listener stopped."
if [[ ! "$PERCENT" == "100" ]]
then
echo
stop-ppss
log DSPLY "$FAILED_ITEMS_COUNTER failed items."
log DSPLY "Finished. Consult $JOB_LOG_DIR for job output."
else
echo
stop-ppss
log DSPLY "Finished. Consult $JOB_LOG_DIR for job output."
fi
if [[ "$QUIET" == "1" ]]
then
echo
fi
if [[ ! -z "$EMAIL" ]]
then
echo "|P|P|S|S| job finished." | mail -s "$HOSTNAME - PPSS has finished." "$EMAIL"
if [[ ! "$?" == "0" ]]
then
log ERROR "Sending os status mail failed."
fi
fi
echo "$GLOBAL_FAILED_COUNTER" >> "$FIFO_LISTENER"
}
inotify_listener () {
inotifywait "$SRC_DIR" -m -r -e close -q --format '%w%f' | \
while read -r line
do
if [[ ! -d "$line" ]]
then
echo "$line" > "$FIFO"
fi
done
}
is_item_unprocessed () {
VAR="$1"
STATUS=0
if [[ -z "$VAR" ]]
then
log DEBUG "$FUNCNAME: something is wrong, no argument received."
return 1
fi
for x in $PROCESSED_ITEMS
do
if [[ "$x" == "$VAR" ]]
then
STATUS=1
fi
done
log DEBUG "Is item $VAR unprocessed: $STATUS"
return $STATUS
}
is_item_file_and_unmodified () {
ITEM="$1"
if [[ -e "$ITEM" ]]
then
NOW=$(date +%s)
FILEDATE=$($STAT "$ITEM")
ELAPSED="$(expr $NOW - $FILEDATE)"
if [[ "$ELAPSED" -gt "$DAEMON_FILE_AGE" ]]
then
log DEBUG "$FUNCNAME File $ITEM is aged $ELAPSED"
return 0
else
log DEBUG "$FUNCNAME File $ITEM too young $ELAPSED"
return 1
fi
else
log DEBUG "$FUNCNAME: file does not exist."
return 0
fi
}
process_item_as_daemon () {
ITEM="$1"
if is_item_unprocessed "$ITEM"
then
if is_item_file_and_unmodified "$ITEM"
then
echo "$ITEM" >> "$FIFO"
processed_stack_push "$ITEM"
else
stack_push "$ITEM"
fi
fi
}
daemon_listener () {
while true
do
get_all_items
while get_item
do
process_item_as_daemon "$ITEM"
done
while stack_pop
do
process_item_as_daemon "$REGISTER"
done
sleep "$DAEMON_POLLING_INTERVAL"
done
}
start_daemon_listener () {
daemon_listener &
MYPID="$!"
disown
PIDS="$PIDS $MYPID"
}
start_inotify_listener () {
ACTIVE_WORKERS=0
inotify_listener &
MYPID="$!"
disown
PIDS="$PIDS $MYPID"
}
start_as_daemon () {
if [[ "$DAEMON" == "1" ]]
then
log DEBUG "Daemon mode enabled."
if [[ "$INOTIFY" == "1" ]]
then
log INFO "Linux inotify enabled."
start_inotify_listener
else
start_daemon_listener
log INFO "Linux inotify disabled."
fi
else
log DEBUG "Daemon mode disabled."
fi
}
decrease_active_workers () {
if [[ "$ACTIVE_WORKERS" -gt "0" ]]
then
((ACTIVE_WORKERS--))
fi
}
listen_for_job () {
FINISHED=0
ACTIVE_WORKERS="$MAX_NO_OF_RUNNING_JOBS"
PIDS=""
log DEBUG "Listener started."
start_as_daemon
while read event <& 42
do
log INFO "Current active workers is $ACTIVE_WORKERS"
if [[ "$event" == "$START_KEY" ]]
then
decrease_active_workers
log DEBUG "Got a 'start-key' event"
if [[ "$DAEMON" == "0" ]]
then
if get_item
then
log DEBUG "Got an item, running command..."
run_command "$ITEM"
else
log DEBUG "No more new items..."
if [[ "$ACTIVE_WORKERS" == "0" ]]
then
display_progress
break
else
display_jobs_remaining
fi
fi
else
log DEBUG "Daemon mode: a worker finished..."
run_command
fi
elif [[ "$event" == "$FAIL_KEY" ]]
then
((FAILED_ITEMS_COUNTER++))
log DEBUG "An item failed to process. $FAILED_ITEMS_COUNTER"
elif [[ "$event" == "$KILL_KEY" ]]
then
infanticide
break
else
log DEBUG "Event is an item."
stack_push "$event"
run_command
fi
display_progress
set_status "RUNNING" "$FAILED_ITEMS_COUNTER"
done
terminate_listener "$FAILED_ITEMS_COUNTER"
}
start_all_workers () {
if [[ "$MAX_NO_OF_RUNNING_JOBS" == "1" ]]
then
log DSPLY "Starting one (1) single worker."
else
log DSPLY "Starting $MAX_NO_OF_RUNNING_JOBS parallel workers."
fi
if [[ "$DAEMON" == "0" ]]
then
log DSPLY "---------------------------------------------------------"
elif [[ "$INOTIFY" == "1" ]]
then
return 0
fi
i=0
while [[ "$i" -lt "$MAX_NO_OF_RUNNING_JOBS" ]]
do
start_new_worker
log DEBUG "Starting worker $i"
((i++))
if [[ ! "$MAX_DELAY" == "0" ]]
then
random_delay "$MAX_DELAY"
fi
done
}
get_status_of_nodes () {
RESULT_FILE="$1"
FAILED=0
ssh -q $SSH_OPTS $SSH_KEY $USER@$SSH_SERVER cat "$PPSS_HOME_DIR/$PPSS_NODE_STATUS/*" > "$RESULT_FILE" 2>&1
if [[ ! "$?" == "0" ]]
then
log DSPLY "|P|P|S|S| has not been started yet on nodes."
return 1
fi
IFS=$'\n'
for x in $(cat $RESULT_FILE)
do
IP=$(echo $x | awk '{ print $1 }')
HOST=$(echo $x | awk '{ print $2 }')
STATUS=$(echo $x | awk '{ print $3 }')
RES=$(echo $x | awk '{ print $4 }')
FAIL=$(echo $x | awk '{ print $5 }')
if [[ -z "$RES" ]]
then
RES="0"
fi
PROCESSED=$((PROCESSED+RES))
FAILED=$((FAILED+FAIL))
LINE=$(echo "$IP $HOST $RES $FAIL $STATUS" | awk '{ printf ("%-16s %-16s % 8s %6s %7s\n",$1,$2,$3,$4,$5) }')
log DSPLY "$LINE"
done
log DSPLY "---------------------------------------------------------"
LINE=$(echo $PROCESSED $FAILED | awk '{ printf ("Total processed/failed: %18s %6s \n",$1,$2) }')
log DSPLY "$LINE"
rm "$RESULT_FILE"
}
show_status () {
. $CONFIG
if [[ ! -z "$SSH_KEY" ]]
then
SSH_KEY="-i $SSH_KEY"
fi
get_all_items
ITEMS=$(wc -l $LISTOFITEMS | awk '{ print $1 }')
if [[ ! -z "$ITEMS" && ! "$ITEMS" == "0" ]]
then
PROCESSED=$(exec_cmd "ls -1 $PPSS_HOME_DIR/$ITEM_LOCK_DIR 2>/dev/null | wc -l" 1) 2>&1 >> /dev/null
check_status "$?" "Could not get number of processed items."
TMP_STATUS=$((100 * $PROCESSED / $ITEMS))
log DSPLY "Status:\t\t$TMP_STATUS percent complete."
else
log DSPLY "Status: UNKNOWN - is PPSS deployed on nodes?"
fi
if [[ ! -z $NODES_FILE ]]
then
TMP_NO=$(cat $NODES_FILE | wc -l)
log DSPLY "Nodes:\t $TMP_NO"
fi
log DSPLY "Items:\t\t$ITEMS"
log DSPLY "---------------------------------------------------------"
HEADER=$(echo IP-address Hostname Processed Failed Status | awk '{ printf ("%-16s %-15s % 2s %2s %2s\n",$1,$2,$3,$4,$5) }')
log DSPLY "$HEADER"
log DSPLY "---------------------------------------------------------"
PROCESSED=0
get_status_of_nodes "RESULT_FILE"
}
main () {
case $MODE in
node )
create_working_directory
test_server
init_vars
get_all_items
listen_for_job "$MAX_NO_OF_RUNNING_JOBS" & 2>&1 >> /dev/null
LISTENER_PID=$!
start_all_workers
;;
start )
# This option only starts all nodes.
LOGFILE=/dev/null
display_header
if [[ ! -e "$NODES_FILE" ]]
then
log ERROR "File $NODES with list of nodes does not exist."
set_status "STOPPED"
cleanup
exit 1
else
for NODE in $(cat $NODES_FILE)
do
start_ppss_on_node "$NODE" &
done
fi
cleanup
;;
config )
LOGFILE=/dev/null
display_header
log DSPLY "Generating configuration file $CONFIG"
add_var_to_config PPSS_LOCAL_TMPDIR "$PPSS_LOCAL_TMPDIR"
add_var_to_config PPSS_LOCAL_OUTPUT "$PPSS_LOCAL_OUTPUT"
cleanup
;;
stop )
LOGFILE=/dev/null
display_header
log DSPLY "Stopping PPSS on all nodes."
test_server
exec_cmd "touch $STOP_SIGNAL"
cleanup
;;
pause )
LOGFILE=/dev/null
display_header
log DSPLY "Pausing PPSS on all nodes."
exec_cmd "touch $PAUSE_SIGNAL"
cleanup
;;
continue )
LOGFILE=/dev/null
display_header
if does_file_exist "$STOP_SIGNAL"
then
log DSPLY "Continuing processing, please use $0 start to start PPSS on al nodes."
exec_cmd "rm -f $STOP_SIGNAL"
fi
if does_file_exist "$PAUSE_SIGNAL"
then
log DSPLY "Continuing PPSS on all nodes."
exec_cmd "rm -f $PAUSE_SIGNAL"
fi
cleanup
;;
deploy )
LOGFILE=ppss-deploy.txt
if [[ -e "$LOGFILE" ]]
then
rm "$LOGFILE"
fi
init_ssh_server_socket
display_header
log DSPLY "Deploying PPSS on nodes. See ppss-deploy.txt for details."
deploy_ppss
wait
cleanup
;;
status )
LOGFILE=/dev/null
display_header
test_server
show_status
cleanup
;;
erase )
LOGFILE=/dev/null
display_header
log DSPLY "Erasing PPSS from all nodes."
erase_ppss
cleanup
;;
kill )
LOGFILE=/dev/null
for x in $(ps ux | grep ppss | grep -v grep | grep bash | awk '{ print $2 }')
do
kill "$x"
done
cleanup
;;
* )
create_working_directory
display_header
init_vars
get_all_items
listen_for_job "$MAX_NO_OF_RUNNING_JOBS" & 2>&1 >> /dev/null
LISTENER_PID=$!
start_all_workers
;;
esac
}
#
# PPSS can be sourced. This is mainly for testing purposes (unit tests).
#
if ! are_we_sourced
then
#
# First step: process all command-line arguments.
#
process_arguments "$@"
#
# This command starts the that sets the whole framework in motion.
# But only if the file is not sourced.
#
main
#
# Exit after all processes have finished.
#
#wait
if [[ -e "$FIFO_LISTENER" ]]
then
while read event <& 43
do
cleanup
exit "$event"
done
fi
fi
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