├── COPYING ├── Makefile ├── NEWS ├── README.md ├── TODO ├── debian ├── changelog ├── compat ├── control ├── dirs ├── docs └── rules ├── jobq ├── jobq-profile ├── jobq-stat ├── jobq.1 └── jobq_effect.png /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | default: 2 | @echo Targets are: release, deb, debclean and debupload. 3 | 4 | release: 5 | release=jobq-`./jobq -v |awk '{print $$2}'`; \ 6 | mkdir -p $$release && ( \ 7 | cp jobq jobq-profile jobq-stat COPYING README TODO NEWS $$release; \ 8 | tar czf $$release.tar.gz $$release; \ 9 | rm -rf $$release ) 10 | 11 | # Bearstech target 12 | build: 13 | dpkg-buildpackage -rfakeroot -i -I.svn -I'*.log' -uc -us 14 | 15 | deb: 16 | @echo "Don't forget to edit debian/changelog (dch -v )..." 17 | @echo "Building the package..." 18 | dpkg-buildpackage -rfakeroot -i -I.svn -I'*.log' 19 | 20 | debclean: 21 | fakeroot debian/rules clean 22 | rm build 23 | 24 | debupload: 25 | rsync -z ../jobq_*.deb builder@deb:~/src/jobq/ 26 | ssh builder@deb make -C www/squeeze jobq 27 | -------------------------------------------------------------------------------- /NEWS: -------------------------------------------------------------------------------- 1 | jobq 0.9.0 2 | 3 | * rewrote queue runner locking code (a race condition still existed), 4 | ditched start-stop-daemon 5 | * now explicitly re-execing itself with --job internal arg 6 | * added --debug mode 7 | 8 | jobq 0.8.2 9 | 10 | * jobq-stat would parse any logged stdout job output 11 | * jobq-{stat,profile} has a better --help 12 | * jobq-{stat,profile} accepts -u user option 13 | * jobq-{stat,profile} defaults to parsing /var/log/user.log 14 | * jobq-profile nows accepts a list of logfiles like jobq-stat 15 | * jobq-profile is now helpful when no data is found 16 | 17 | jobq 0.8.1 18 | 19 | * Use start-stop-daemon instead of custom deamonization method, 20 | fixes queue runner daemon startip race conditions (S. Bocahu) 21 | 22 | * Wake up queue runner as soon as a new job is queued (S. Bocahu) 23 | 24 | jobq 0.8 25 | 26 | * Added jobq-stat and jobq-profile scripts 27 | 28 | jobq 0.7.1 29 | 30 | * Simple bugfix in mail output (was not workong), use 'mailx -e' 31 | 32 | jobq 0.7 33 | 34 | * Changed indent from 4ws to 2ws (I'm too used to id) 35 | * Fixed queue display while only requesting daemon start 36 | * Fixed queue listing (`` => $() quoting hell) 37 | 38 | jobq 0.6 39 | 40 | * Added long options 41 | * Added -v|--version 42 | * Documented options in help 43 | * Tidying queue listing (un-quoting command as in queue runner logger) 44 | * Added mail output a la cron (requires mailx) 45 | * Fixed todo=-1 info when queue was empty 46 | * Added (undocumented) -x debug option (don't detach daemon from tty) 47 | * Fixed a race condition in list_jobs where a job spec could be removed 48 | after being listed 49 | * Parse all options before calling run_daemon 50 | * Better logging: displaying user/queue/jobid instead of only jobid 51 | 52 | jobq 0.5 53 | 54 | * Better logging, easier to read 55 | * Logging jobqueue size at each job start 56 | 57 | jobq 0.4 58 | 59 | * Using $LOGNAME instead of $USER (not set in cron env) 60 | 61 | jobq 0.3 62 | 63 | * Really trapping INT and HUP signals now 64 | * Fix job command unquoting 65 | * Fix indentation, gotta get used to 4 whitespaces 66 | 67 | jobq 0.2 68 | 69 | * Fix 'cat: .runner: No such file or directory' error 70 | * Basic security (creating queue dir as user-private) 71 | 72 | jobq 0.1 73 | 74 | * Initial release 75 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Jobq 2 | ==== 3 | 4 | Simple job queue management (a better 'batch') 5 | ---------------------------------------------- 6 | 7 | * See [http://deb.bearstech.com/] for Debian packages 8 | 9 | **jobq** manages a simple batch queue, where one job is run after the other. 10 | Many queues can be run independently, and no specific privileges or 11 | daemon is required. Queue info and statistics are syslogged. 12 | 13 | It is especially useful for complex crontabs, to force sequential 14 | execution of jobs that would otherwise run in parallel with unlimited 15 | instances. Jobs and load can be regulated by 'run queues' very easily 16 | with **jobq**. 17 | 18 | **jobq** is licensed under the [GNU GPL 3.0](http://www.gnu.org/licenses/gpl.html). 19 | 20 | 21 | Example usage 22 | ------------- 23 | 24 | Run two heavy jobs: first one is run immediatly since queue 25 | is initially empty (shows in processes but not in queue), the second one 26 | is waiting (shows in queue). 27 | 28 | hal:~$ jobq heavy_job arg1 29 | hal:~$ jobq heavy_job arg2 param2 30 | 31 | hal:~$ pgrep -lf heavy_job 32 | 10441 /usr/bin/heavy_job arg1 33 | 34 | hal:~$ jobq 35 | ID Submission date Command 36 | 10447 2009-10-27 16:06:59 heavy_job arg2 param2 37 | 38 | hal:~$ tail /var/log/user.log 39 | Oct 27 16:06:52 hal jobq: queue runner started for user/queue 'foo/default' (pid 10421) 40 | Oct 27 16:06:52 hal job[foo/default/10413]: start (delay:0 sec, todo:0): heavy_job arg1 41 | Oct 27 16:07:22 hal job[foo/default/10413]: done (time:30 sec, exit:0) 42 | Oct 27 16:07:22 hal job[foo/default/10447]: start (delay:23 sec, todo:0): heavy_job arg2 param2 43 | Oct 27 16:07:27 hal job[foo/default/10447]: done (time:5 sec, exit:0) 44 | 45 | First job was scheduled and started at 16:06:52 and took 30 sec to complete. 46 | 47 | Second job was scheduled 7 seconds later at 16:06:59 (not logged), started at 48 | 16:07:22 (23 sec after sheduling) and took 5 sec to complete. 49 | 50 | 51 | Job queue monitoring 52 | -------------------- 53 | 54 | **jobq-profile** prints time and calls per script: 55 | 56 | $ jobq-profile -q production 57 | 58 | Calls Time(sec) Command 59 | 12 460504 ./script/runner "LivePush.clean" && ./script/pates 60 | 197 49165 rake -s import:foobar:home_news_competition 61 | 201 35767 rake -s import:foobar:news 62 | 492 3063 rake -s import:foobar:update_recent_game_squad 63 | [...] 64 | 65 | **jobq-stat** compile some statistics from logged timings and give you an overview of your queue health (it calls ''jobq-profile''): 66 | 67 | $ jobq-stat -q production 68 | 69 | Current job queue size : 6 pending jobs 70 | Oldest queued job posted: 4 minute(s) ago 71 | 72 | Job execution statistics from 'Apr 12 16:50:02' to 'Apr 16 17:39:25' 73 | (extracted from /var/log/user.log): 74 | 75 | Total jobs launched : 4300 76 | Average job queue size: 170 77 | Maximum job queue size: 1817 78 | Average job delay : 77 minute(s) 79 | Maximum job delay : 846 minute()s 80 | Longest job exec time : 43779 second(s) 81 | Longest job command : ./script/runner "LivePush.clean" && ./script/pates 82 | 83 | Calls Time(sec) Command 84 | 12 460504 ./script/runner "LivePush.clean" && ./script/pates 85 | 197 49165 rake -s import:foobar:home_news_competition 86 | 201 35767 rake -s import:foobar:news 87 | 492 3063 rake -s import:foobar:update_recent_game_squad 88 | 489 3035 rake -s import:foobar:update_recent_game_information 89 | 489 2949 rake -s import:foobar:update_ranking_just_after_game 90 | 197 1864 rake -s import:foobar:home_news 91 | 65 867 rake thinking_sphinx:index > /dev/null 2>&1 92 | 3 16 ./script/runner "LivePush.clean" 93 | 2 16 rake -s import:foobar:update_recent_end_game_squad 94 | 2 16 rake -s import:foobar:update_ranking_during_one_day 95 | 2 15 rake -s import:foobar:update_recent_end_game_information 96 | 97 | Pending jobs: 98 | ID Submission date Command 99 | 29092 2010-04-16 17:35:01 rake -s import:foobar:home_news 100 | 29791 2010-04-16 17:36:01 rake -s import:foobar:update_ranking_just_after_game 101 | 29790 2010-04-16 17:36:01 rake -s import:foobar:update_recent_game_information 102 | 29788 2010-04-16 17:36:01 rake -s import:foobar:update_recent_game_squad 103 | 30842 2010-04-16 17:38:01 rake -s import:foobar:update_ranking_just_after_game 104 | 30841 2010-04-16 17:38:01 rake -s import:foobar:update_recent_game_information 105 | 106 | 107 | Real life sample 108 | ---------------- 109 | 110 | The following picture is a 'load graph' from a server with a large crontab, launching many jobs at different frequency, from every minute to every month. Of course, sometimes jobs overlap badly, and if they compete for a scarce ressource (such as I/O on a local disk) they are slow and also slow down the whole server. Those load graphs often exhibits horizontal "plateaus" close to integer values, a sign that you have long running processes which stack up and eat all your server ressources. 111 | 112 | ![jobq effect](jobq_effect.png) 113 | 114 | On Tuesday all jobs where run through a single queue by simply prepending 'jobq' to the existing commands in the crontab. The server was running smoothly again, and the problem was now a safer one where the job queue has to be monitored for not growing indefinitely, searching for possible job parallelism and carefully creating new independent job queues. 115 | -------------------------------------------------------------------------------- /TODO: -------------------------------------------------------------------------------- 1 | * Job cancelation 2 | * Queue runner list/stop 3 | * Man page (--help gets bulky, and DFSG requires it) 4 | * Check security issues wrt job files 5 | * Log time(1) timings 6 | 7 | Long term: 8 | * Full Perl rewrite: many operations are awkard, slow and costly with shell 9 | -------------------------------------------------------------------------------- /debian/changelog: -------------------------------------------------------------------------------- 1 | jobq (0.9.0) stable; urgency=low 2 | 3 | * rewrote queue runner locking code (a race condition still existed), 4 | ditched start-stop-daemon 5 | * now explicitly re-execing itself with --job internal arg 6 | * added --debug mode 7 | 8 | -- Vincent CARON Thu, 10 Nov 2016 16:54:54 +0100 9 | 10 | jobq (0.8.3) stable; urgency=low 11 | 12 | * Changed shell to explicit bash, 'print %q' is a bashism 13 | 14 | -- Vincent CARON Mon, 26 Aug 2013 18:29:43 +0200 15 | 16 | jobq (0.8.2) stable; urgency=low 17 | 18 | * Upstream update 19 | 20 | -- Vincent CARON Thu, 09 Dec 2010 23:20:25 +0100 21 | 22 | jobq (0.8.1) stable; urgency=low 23 | 24 | * Upstream update 25 | 26 | -- Vincent CARON Sat, 26 Jun 2010 17:11:07 +0200 27 | 28 | jobq (0.8) stable; urgency=low 29 | 30 | * Upstream update. 31 | 32 | -- Vincent CARON Fri, 16 Apr 2010 17:25:31 +0200 33 | 34 | jobq (0.7.1) stable; urgency=low 35 | 36 | * Bugfix for mail output, use mailx -e (and not newer -E which is not 37 | supported in Lenny) 38 | 39 | -- Vincent CARON Mon, 08 Mar 2010 18:33:36 +0100 40 | 41 | jobq (0.7) stable; urgency=low 42 | 43 | * Upstream update. 44 | 45 | -- Vincent CARON Tue, 03 Nov 2009 00:02:46 +0100 46 | 47 | jobq (0.6) stable; urgency=low 48 | 49 | * Upstream update. 50 | 51 | -- Vincent CARON Thu, 29 Oct 2009 18:05:10 +0100 52 | 53 | jobq (0.5) stable; urgency=low 54 | 55 | * Upstream update. 56 | 57 | -- Vincent CARON Mon, 26 Oct 2009 15:38:13 +0100 58 | 59 | jobq (0.4-1) stable; urgency=low 60 | 61 | * Upstream update. 62 | 63 | -- Vincent CARON Mon, 26 Oct 2009 15:13:31 +0100 64 | 65 | jobq (0.3-1) stable; urgency=low 66 | 67 | * Upstream update. 68 | 69 | -- Vincent CARON Tue, 20 Oct 2009 00:34:05 +0200 70 | 71 | jobq (0.2-1) stable; urgency=low 72 | 73 | * Upstream update. 74 | 75 | -- Vincent CARON Mon, 19 Oct 2009 23:36:34 +0200 76 | 77 | jobq (0.1-1) stable; urgency=low 78 | 79 | * Initial release. 80 | 81 | -- Vincent CARON Mon, 19 Oct 2009 23:16:59 +0200 82 | -------------------------------------------------------------------------------- /debian/compat: -------------------------------------------------------------------------------- 1 | 7 2 | -------------------------------------------------------------------------------- /debian/control: -------------------------------------------------------------------------------- 1 | Source: jobq 2 | Section: admin 3 | Priority: optional 4 | Maintainer: Vincent Caron 5 | Build-Depends: debhelper 6 | Homepage: http://forge.bearstech.com/trac/wiki/JobQueue 7 | 8 | Package: jobq 9 | Architecture: all 10 | Depends: bash (>= 3.2), mailx, perl, ${shlibs:Depends}, ${misc:Depends} 11 | Description: Simple job queue 12 | jobq handles any nimber of job queues, where jobs are run as soon 13 | as possible, one at once per queue. Log job timings and output. 14 | . 15 | -------------------------------------------------------------------------------- /debian/dirs: -------------------------------------------------------------------------------- 1 | usr/bin 2 | -------------------------------------------------------------------------------- /debian/docs: -------------------------------------------------------------------------------- 1 | NEWS 2 | COPYING 3 | TODO 4 | -------------------------------------------------------------------------------- /debian/rules: -------------------------------------------------------------------------------- 1 | #!/usr/bin/make -f 2 | 3 | configure: 4 | dh_testdir 5 | build: configure 6 | dh_testdir 7 | touch $@ 8 | 9 | clean: 10 | dh_testdir 11 | dh_testroot 12 | dh_clean 13 | 14 | install: build 15 | dh_testdir 16 | dh_testroot 17 | dh_clean -k 18 | dh_installdirs 19 | 20 | install -o root -g root -m 755 $(CURDIR)/jobq $(CURDIR)/debian/jobq/usr/bin/jobq 21 | install -o root -g root -m 755 $(CURDIR)/jobq-profile $(CURDIR)/debian/jobq/usr/bin/jobq-profile 22 | install -o root -g root -m 755 $(CURDIR)/jobq-stat $(CURDIR)/debian/jobq/usr/bin/jobq-stat 23 | 24 | binary: build install 25 | dh_testdir 26 | dh_testroot 27 | dh_installchangelogs 28 | dh_installdocs 29 | dh_installexamples 30 | dh_installman 31 | dh_link 32 | dh_compress 33 | dh_fixperms 34 | dh_installdeb 35 | dh_gencontrol 36 | dh_md5sums 37 | dh_builddeb 38 | 39 | .PHONY: build clean binary install configure 40 | -------------------------------------------------------------------------------- /jobq: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # Simple job queue, run one process at once per queue and log timings and delays. 4 | # 5 | # A jobqueue is a simple list of files as $JOBPATH// 6 | # which content is a plain command to execute. 7 | 8 | # Copyright (C) 2009,2010 Bearstech - http://bearstech.com/ 9 | # 10 | # This program is free software: you can redistribute it and/or modify 11 | # it under the terms of the GNU General Public License as published by 12 | # the Free Software Foundation, either version 3 of the License, or 13 | # (at your option) any later version. 14 | # 15 | # This program is distributed in the hope that it will be useful, 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 | # GNU General Public License for more details. 19 | # 20 | # You should have received a copy of the GNU General Public License 21 | # along with this program. If not, see . 22 | 23 | PROGRAM=jobq 24 | VERSION=0.9.0 25 | 26 | # Hardcoded value for now, should fit most people 27 | JOBPATH=/tmp/jobq-$LOGNAME 28 | 29 | 30 | job_list() { 31 | cd $JOBPATH/$queue 2>/dev/null || exit 0 32 | echo "ID Submission date Command" 33 | ls -1rt | \ 34 | while read job; do 35 | jobt=$(stat -c%y $job 2>/dev/null | cut -d. -f1) 36 | jobp=$(sed 's/\\\([^\]\)/\1/g' $job 2>/dev/null) 37 | if [ -n "$jobp" ]; then 38 | printf "%-5s %20s %s\n" $job "$jobt" "$jobp" 39 | fi 40 | done 41 | } 42 | 43 | job_add() { 44 | set -e 45 | 46 | # Make sure the queue path exists so we can write our job file 47 | mkdir -p -m 0700 $JOBPATH 48 | mkdir -p -m 0700 $JOBPATH/$queue 49 | cd $JOBPATH/$queue 50 | 51 | # Command line args re-quote - you don't want to know this shell ugliness. 52 | argv= 53 | for a in "$@"; do 54 | qa=$(printf %q "$a") 55 | argv="$argv$qa " 56 | done 57 | 58 | # Hopefully this 'mv' is atomic, thus our joblist is lock-free 59 | id=$$ 60 | echo "$argv" >.$id && mv .$id $id 61 | 62 | # Automatically try to start the queue runner in background. Make sure to 63 | # restore caller's cwd so referring to $0 still works. 64 | cd - >/dev/null 65 | exec "$0" --queue "$queue" --runner 66 | } 67 | 68 | queue_runner() { 69 | if [ "$debug" = yes ]; then 70 | set -x 71 | exec 2>/tmp/jobq-debug.$BASHPID 72 | fi 73 | 74 | mkdir -p -m 0700 $JOBPATH 75 | mkdir -p -m 0700 $JOBPATH/$queue 76 | cd $JOBPATH/$queue || exit 1 77 | 78 | # The pidfile is also a lockfile, making sure there's a single runner per queue 79 | pid=$BASHPID # And _not_ $$ because we're in a subshell (backgrounded) 80 | if !(set -o noclobber; echo $pid >.runner) 2>/dev/null; then 81 | runner=`cat .runner 2>/dev/null` 82 | if [ "$debug" = yes ]; then 83 | echo "waking up runner for user/queue '$LOGNAME/$queue' (pid $runner)" | logger -t $PROGRAM 84 | fi 85 | kill -USR1 $runner 2>/dev/null && exit 86 | 87 | rm -f .runner 88 | echo "stale pidfile, removing $PWD/.runner and spawning a new one (unsafe)" | logger -t $PROGRAM 89 | # Incur a delay which varies wildly when PIDs are close, hopefully minimizing the race condition 90 | eval "sleep .$(($$ * $$))" 91 | exec "$0" --queue "$queue" --runner 92 | fi 93 | 94 | trap "rm -f $PWD/.runner; exit" INT TERM EXIT 95 | trap ":" USR1 96 | echo "queue runner started for user/queue '$LOGNAME/$queue' (pid $pid)" | logger -t $PROGRAM 97 | 98 | while true; do 99 | # Fetch job list in time order, pick older 100 | job=`ls -1rt 2>/dev/null | head -n1` 101 | 102 | if [ -n "$job" ]; then 103 | "$0" --queue "$queue" --job "$job" 2>&1 | logger -t "job[$LOGNAME/$queue/$job]" 104 | else 105 | # No job, re-scan the queue later: wait 60sec or USR1 106 | sleep 60 & # 'sleep' cannot be interrupted by USR1, thus it goes into the background 107 | wait $! # 'wait' _can_ be interrupted by USR1 108 | kill $! 2>/dev/null # Kill 'sleep' if still running 109 | fi 110 | done 111 | } 112 | 113 | job_runner() { 114 | cd $JOBPATH/$queue || exit 1 115 | 116 | cmd=`cat $job` # content of job file, the command to run 117 | jobt=`stat -c%Y $job` # job submission time 118 | rm $job # remove the job, it _will_ be run in a few lines 119 | 120 | # Statistics 121 | todo=`ls |wc -l` 122 | t0=`date +%s` 123 | late=$(( $t0 - $jobt )) 124 | jobp=$(echo "$cmd" | sed 's/\\\([^\]\)/\1/g') 125 | echo "start (delay:$late sec, todo:$todo): $jobp" 126 | 127 | if [ -n "$MAILTO" ]; then 128 | eval $cmd | mailx -e -s "`hostame -f` job[$LOGNAME/$queue/$job]: $jobp" $MAILTO 129 | else 130 | eval $cmd 131 | fi 132 | ret=$? 133 | 134 | dt=$(( `date +%s` - $t0 )) 135 | echo "done (time:$dt sec, exit:$ret)" 136 | } 137 | 138 | help() { 139 | cat << EOF 140 | List queue: $PROGRAM [-q ] 141 | Submit job: $PROGRAM [-q ] command args ... 142 | 143 | The default queue is called, er, 'default'. One 'queue runner' daemon is 144 | needed per queue and per user, and is started automatically upon first job 145 | submission. There is no mechanism to stop a queue runner besides killing it. 146 | 147 | If MAILTO is set, job output (if any) is sent to this address, otherwise it 148 | is syslogged to the user.notice facility. This is a queue runner setting, 149 | either parsed by explicit queue runner start, either while running the first 150 | job for a given user/queue. 151 | 152 | Options: 153 | -h, --help Show this help 154 | -q, --queue QUEUE Select queue (default name is 'default') 155 | -r, --runner Explicitly start queue runner (in foreground) 156 | -v, --version Show this software revision 157 | EOF 158 | exit 1 159 | } 160 | 161 | version() { 162 | echo "$PROGRAM $VERSION" 163 | exit 0 164 | } 165 | 166 | queue=default 167 | runner= 168 | job= 169 | debug=no 170 | 171 | parse_opt=run 172 | while [ $parse_opt != "done" ] ; do 173 | case "$1" in 174 | -d|--debug) shift; debug=yes;; 175 | -h|--help) help;; 176 | -j|--job) shift; job="$1"; shift;; # Internal option 177 | -q|--queue) shift; queue="$1"; shift;; 178 | -r|--runner) shift; runner=yes;; 179 | -v|--version) version;; 180 | 181 | --) parse_opt=done;; 182 | -*) echo "$PROGRAM: unknown option $1, try -h for help" >&2; exit 2;; 183 | *) parse_opt=done;; 184 | esac 185 | done 186 | 187 | if [ -n "$runner" ]; then 188 | queue_runner /dev/null 2>/dev/null & 189 | exit 0 190 | fi 191 | if [ -n "$job" ]; then 192 | job_runner 193 | exit 0 194 | fi 195 | if [ $# -gt 0 ]; then 196 | job_add "$@" 197 | else 198 | job_list 199 | fi 200 | -------------------------------------------------------------------------------- /jobq-profile: -------------------------------------------------------------------------------- 1 | #!/usr/bin/perl 2 | 3 | # Print a profile (number of calls andt total time) for every command 4 | # invoked by jobq. Needs to be fed with syslog'ed data via STDIN. 5 | # 6 | # jobq-profile -q encoder < /var/log/user.log 7 | 8 | # Copyright (C) 2009,2010 Bearstech - http://bearstech.com/ 9 | # 10 | # This program is free software: you can redistribute it and/or modify 11 | # it under the terms of the GNU General Public License as published by 12 | # the Free Software Foundation, either version 3 of the License, or 13 | # (at your option) any later version. 14 | # 15 | # This program is distributed in the hope that it will be useful, 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 | # GNU General Public License for more details. 19 | # 20 | # You should have received a copy of the GNU General Public License 21 | # along with this program. If not, see . 22 | 23 | 24 | use strict; 25 | use warnings; 26 | use Getopt::Long; 27 | 28 | my $program = 'jobq-profile'; 29 | my $version = '0.9.0'; 30 | 31 | my %job_by_id; 32 | my %jobtime; 33 | my %jobcall; 34 | 35 | sub usage { 36 | print STDERR < \$user, 54 | 'q|queue=s' => \$queue 55 | ); 56 | 57 | my @logfiles = @ARGV; 58 | @logfiles = ('/var/log/user.log') if not @logfiles; 59 | 60 | my $ctx = "$user/$queue/"; 61 | 62 | while (@logfiles) { 63 | my $logfile = shift @logfiles; 64 | open(my $log, '-|', 'zcat', '-f', $logfile) or warn "$logfile: $!"; 65 | 66 | while (<$log>) { 67 | if (/job\[$ctx(\d+)\]: start \(.*?\): (.*)/) { 68 | $job_by_id{$1} = $2; 69 | next; 70 | } 71 | if (/job\[$ctx(\d+)\]: done \(time:(\d+)/) { 72 | my $cmd = $job_by_id{$1}; 73 | next if not defined $cmd; 74 | $jobtime{$cmd} += $2, 75 | $jobcall{$cmd}++; 76 | next; 77 | } 78 | } 79 | 80 | close($log) if $log; 81 | } 82 | 83 | if (not keys %jobtime) { 84 | print "No jobq event found for user '$user' and queue '$queue'\n"; 85 | exit; 86 | } 87 | print "Calls Time(sec) Command\n"; 88 | printf("%5d%9d %s\n", $jobcall{$_}, $jobtime{$_}, $_) foreach sort { $jobtime{$b} - $jobtime{$a} } keys %jobtime; 89 | -------------------------------------------------------------------------------- /jobq-stat: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # Extract many statistics info from jobq syslog'ed data. For instance, one 4 | # can fire an automatic report after the usual log rotation with: 5 | # 6 | # jobq-stat /var/log/user.log.1 | mail -s "jobq daily report" admin@foo.com 7 | # 8 | # ... or get the current picture from current log with: 9 | # 10 | # jobq-stat /var/log/user.log 11 | 12 | # Copyright (C) 2009,2010 Bearstech - http://bearstech.com/ 13 | # 14 | # This program is free software: you can redistribute it and/or modify 15 | # it under the terms of the GNU General Public License as published by 16 | # the Free Software Foundation, either version 3 of the License, or 17 | # (at your option) any later version. 18 | # 19 | # This program is distributed in the hope that it will be useful, 20 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 21 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 22 | # GNU General Public License for more details. 23 | # 24 | # You should have received a copy of the GNU General Public License 25 | # along with this program. If not, see . 26 | 27 | PROGRAM=jobq-stat 28 | VERSION=0.9.0 29 | 30 | 31 | help() { 32 | cat <&2 33 | Usage: $PROGRAM [-u user] [-q ] [/var/log/user.log] [...] 34 | 35 | Show statistics for the given job queue: number of pending jobs, 36 | run jobs, delays, etc. 37 | 38 | Since jobq sends statistics to the 'user' syslog facility, jobq-stat 39 | defaults to parsing 'user.log'. The default user is the current user 40 | (\$LOGNAME). The default queue is 'default'. 41 | 42 | EOF 43 | exit 1 44 | } 45 | 46 | version() { 47 | echo "$PROGRAM $VERSION" 48 | exit 0 49 | } 50 | 51 | user="$LOGNAME" 52 | queue=default 53 | 54 | parse_opt=run 55 | while [ $parse_opt != "done" ] ; do 56 | case "$1" in 57 | -u|--user) shift; user="$1"; shift;; 58 | -q|--queue) shift; queue="$1"; shift;; 59 | -h|--help) help;; 60 | -v|--version) version;; 61 | 62 | --) parse_opt=done;; 63 | -*) echo "$PROGRAM: unknown option $1, try -h for help" >&2; exit 2;; 64 | *) parse_opt=done;; 65 | esac 66 | done 67 | logfiles="$*" 68 | if [ -z "$logfiles" ]; then 69 | logfiles=/var/log/user.log 70 | fi 71 | 72 | # Hardcoded value for now, must be sync'ed with jobq's. 73 | JOBPATH=/tmp/jobq-$user 74 | cd $JOBPATH/$queue 2>/dev/null || { echo "No such job queue '$queue' for user '$user'" >&2; exit 1; } 75 | 76 | now=$(date +%s) 77 | older=$(ls -1rt | head -n1 | xargs stat -c%Y 2>/dev/null) 78 | queue_len=$(ls -1 | wc -l) 79 | 80 | n=0 81 | delay_sum=0 82 | delay_max=0 83 | todo_sum=0 84 | todo_max=0 85 | done_max=0 86 | zegrep " job\[$user/$queue/[0-9]+\]: (start|stop) " $logfiles | { 87 | while read l; do 88 | _done=$(echo "$l" | sed -ne 's/.*: done (time:\([0-9]\+\) sec.*/\1/p') 89 | if [ -n "$_done" ]; then 90 | if [ $_done -gt $done_max ]; then 91 | done_max="$_done" 92 | done_max_job=$(echo "$lprev" | sed 's/.*[0-9]\+): //') 93 | fi 94 | else 95 | delay=$(echo "$l" | sed 's/.*: start (delay://; s/ sec.*//') 96 | todo=$(echo "$l" | sed 's/.*, todo://; s/).*//') 97 | if [ $delay -gt $delay_max ]; then delay_max="$delay"; fi 98 | if [ $todo -gt $todo_max ]; then todo_max="$todo"; fi 99 | let delay_sum+=$delay 100 | let todo_sum+=$todo 101 | fi 102 | let n++ 103 | 104 | if [ -z "$log_begin" ]; then 105 | log_begin=$(echo "$l" | awk '{print $1" "$2" "$3}') 106 | fi 107 | lprev="$l" 108 | done 109 | log_end=$(echo "$lprev" | awk '{print $1" "$2" "$3}') 110 | 111 | echo "Current job queue size : $queue_len pending jobs" 112 | if [ -n "$older" ]; then 113 | queue_age=$(( ($now - $older + 59) / 60 )) 114 | echo "Oldest queued job posted: $queue_age minute(s) ago" 115 | fi 116 | 117 | echo 118 | if [ $n -gt 0 ]; then 119 | delay_max_m=$(( ($delay_max + 59) / 60 )) 120 | delay_avg_m=$(( ($delay_sum + 59) / (60 * $n) )) 121 | todo_avg=$(( $todo_sum / $n )) 122 | cat << EOF 123 | Job execution statistics from '$log_begin' to '$log_end' 124 | (extracted from $logfiles): 125 | 126 | Total jobs launched : $n 127 | Average job queue size: $todo_avg 128 | Maximum job queue size: $todo_max 129 | Average job delay : $delay_avg_m minute(s) 130 | Maximum job delay : $delay_max_m minute()s 131 | Longest job exec time : $done_max second(s) 132 | Longest job command : $done_max_job 133 | EOF 134 | else 135 | echo "No past job found in $logfiles." 136 | fi 137 | } 138 | 139 | echo 140 | jobq-profile -u "$user" -q "$queue" $logfiles 141 | 142 | if [ $queue_len -gt 0 ]; then 143 | echo 144 | echo "Pending jobs:" 145 | jobq -q "$queue" | sed 's/^/ /' 146 | fi 147 | -------------------------------------------------------------------------------- /jobq.1: -------------------------------------------------------------------------------- 1 | .\" Yes, this file is manually edited. 2 | .\" 3 | .TH "JOBQ" "1" "09/12/2010" "\ 0.9.0" "\ " 4 | .\" disable hyphenation 5 | .nh 6 | .\" disable justification (adjust text to left margin only) 7 | .ad l 8 | .SH "NAME" 9 | jobq \- simple job queue (a better batch) 10 | .SH "SYNOPSIS" 11 | jobq [options] 12 | jobq [options] command args ... 13 | .sp 14 | .SH "DESCRIPTION" 15 | Jobq manages a simple batch queue, where one job is run after the other. Many queues can be run independently, and no specific privileges or daemon is required. Queue info and statistics are syslogged. 16 | .sp 17 | It is especially useful for complex crontabs, to force sequential execution of jobs that would otherwise run in parallel with unlimited instances. Jobs and load can be regulated by 'run queues' very easily with jobq. 18 | .sp 19 | The default queue is called 'default'. One 'queue runner' daemon is needed per queue and per user, and is started automatically upon first job submission. This queue runner will then run forever in background and monitor the queue. 20 | .sp 21 | If MAILTO is set, job output (if any) is sent to this address (this makes it transparent when used via a crontab for instance). Otherwise it is syslogged to the user.notice facility. This is a per-queue setting, either parsed by explicit queue runner start, either while running the first job for a given queue. 22 | .sp 23 | Statistics are sent to the user.notice syslog facility and may be used by jobq-stat(1) and jobq-profile(1). 24 | .sp 25 | .SH "OPTIONS" 26 | .TP 27 | \-h, \-\-help 28 | Display a short options summary. 29 | .TP 30 | \-q, \-\-queue QUEUE 31 | Select queue (default name is 'default'). 32 | .TP 33 | \-r, \-\-runner 34 | Explicitly start queue runner (in foreground). If you don't know what it means, you don' need it. It's mostly used for debug and development. 35 | .TP 36 | \-v, \-\-version 37 | Display version number and copyright information. 38 | .SH "EXAMPLES" 39 | Queue a job wich tarballs your /etc to the default queue, it will be run as soon as the queue is free. 40 | .sp 41 | .sp 42 | .nf 43 | $ jobq tar czf /tmp/etc.tar.gz /etc 44 | .fi 45 | .sp 46 | .sp 47 | List queued jobs on queue 'compile' : 48 | .sp 49 | .sp 50 | .nf 51 | $ jobq -q compile 52 | ID Submission date Command 53 | 10447 2009-10-27 16:06:59 make -C /usr/src/linux bzimage 54 | 11842 2009-10-27 16:14:20 make -C /usr/src/ffmpeg 55 | .fi 56 | .SH "INTERPRETATION" 57 | FIXME 58 | .sp 59 | .SH "DISCUSSION" 60 | Jobq is a sysadmin hack and was built with bare requirements (bash and coreutils). 61 | .sp 62 | A job is simple file '/tmp/jobq-USER/NAME/ID' where USER is the currently logged in user, NAME the queue name, and ID the actual pid of the jobq process adding a job. The content of this file is a quoted version of the submitted command and its arguments. 63 | .sp 64 | It is fairly easy to hack directly this pseudo database, and it's also rarely needed. Mostly you'll want to reset a queue with a 'rm -rf' on its folder (a mv(1) then 'rm -rf' would be actually better). 65 | .sp 66 | It naturally inherits from the Unix security model; queue folders are created with exclusive access to their owner. It does not scale well, at least not more than your filesystem wrt. inodes per folder. On the other hand, it is not meant to scale, it was designed to be regulated as to have the smallest possible queue in any event. 67 | .sp 68 | .SH "BUGS" 69 | Jobq started as a quite simple shell hack, it's now reaching the limits of acceptable bashisms and ugliness. 70 | .sp 71 | It uses subshells and pipes wich tends to show a bunches of process per job (two queue runner copies, a logger, a mailer). 72 | .sp 73 | There is no mechanism to stop a queue runner besides killing it. 74 | .sp 75 | There is no mechanism to edit jobs (modify, remove, reschedule) besides tweaking the files in /tmp/jobq-*. 76 | .sp 77 | Please file bugs on http://forge.bearstech.com/trac/newticket (simple registration needed). 78 | .sp 79 | .SH "ENVIRONMENT VARIABLES" 80 | .sp 81 | .TP 82 | MAILTO 83 | If defined, any output from a job is sent to this command. Useful to keep the original crond behaviour 84 | when using a crontab to submit job to a queue. 85 | .sp 86 | .TP 87 | LOGNAME 88 | A queue is defined by a user (LOGNAME) and a name. jobq-stat and jobq-profile let you query any user with the 89 | -u option. You might cheat jobq with 'LOGNAME=other jobq some command' but don't do that, it will only confuse 90 | others or even yourself. 91 | .sp 92 | .SH "FILES" 93 | .sp 94 | .nf 95 | /tmp/jobq-USER/NAME 96 | The queue itself is a simple folder, where each job is a file. 97 | .fi 98 | .SH "AUTHOR" 99 | Written by Vincent Caron 100 | .sp 101 | Homepage at \fIhttp://forge.bearstech.com/trac/wiki/JobQueue\fR 102 | .sp 103 | .SH "COPYRIGHT" 104 | .sp 105 | Copyright © 2009,2010 Bearstech. License GPLv3+: GNU GPL version 3 or later . 106 | This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. 107 | .sp 108 | .SH "SEE ALSO" 109 | .sp 110 | .nf 111 | batch(1), logger(2) 112 | .fi 113 | -------------------------------------------------------------------------------- /jobq_effect.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bearstech/jobq/054157e744173ed060f64ac7baba80c5d36ae34c/jobq_effect.png --------------------------------------------------------------------------------