| author | viric@mandarina |
| Wed, 06 Feb 2008 22:51:58 +0100 | |
| changeset 191 | 35b77fb4deb1 |
| parent 185 | 5ec722128e27 |
| child 201 | 144847554666 |
| permissions | -rw-r--r-- |
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> |
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<html lang="en"> |
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<head> |
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<meta http-equiv="Content-Type" content="text/html;charset=utf-8"> |
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<title>Task Spooler - batch is back!</title> |
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</head> |
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<body> |
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<h1>Task Spooler</h1> |
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<p>I wrote <em>Task Spooler</em> because I didn't have any comfortable way of |
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running batch jobs in my linux computer. I wanted to:</p> |
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<ul> |
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<li>Queue jobs from different terminals. |
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<li>Use it locally in my machine (not as in network queues). |
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<li>Have a good way of seeing the output of the processes (tail, errorlevels, |
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...). |
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<li>Easy use: almost no configuration. |
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<li>Easy to use in scripts. |
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</ul> |
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<p>You can look at an old (but representative) |
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<a href="ts-0.2.1.png">screenshot</a> if you want.</p> |
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<h2>Mailing list</h2> |
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<p>Alessandro Öhler prepared a mailing list for discuting newer functionalities |
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and interchanging use experiences. You can look at the |
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<a href="http://mail.linuxbox.eu.org/taskspooler/">archive</a> or |
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<a href="mailto:taskspooler+subscribe@linuxbox.eu.org">subscribe</a>. |
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</p> |
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<h2>How it works</h2> |
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<p>The queue is maintained by a server process. This server process is started |
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if it isn't there already. The communication goes to a unix socket in |
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<kbd>/tmp/</kbd>.</p> |
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<p>When the user requests a job (using a ts client), the client waits for the |
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server message to know when it can start. The client usually forks, but |
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it will run the command with the proper environment, because |
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<em>the client</em> will |
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run the job (not the server, like in 'at' or 'cron'). So, the ulimits, |
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environment, pwd,. apply.</p> |
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<p>When the job finishes, the client notifies the server. At this time, |
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the server may notify any <em>waiting</em> client, and stores the |
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output and the errorlevel of the finished job.</p> |
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<h2>Download</h2> |
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<p>Download the latest version (GPLv2+ licensed): |
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<a href="ts-0.5.tar.gz">ts-0.5.tar.gz</a> - v0.5</p> |
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<p>Look at the |
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<a href="/~mercurial/cgi-bin/hgwebdir.cgi/ts">version repository</a> if you are |
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interested in its development.</p> |
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<p>Андрей Пантюхин (Andrew Pantyukhin) maintains the |
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<a href="http://www.freshports.org/sysutils/ts">BSD port</a>.</p> |
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<p>Alessandro Öhler provided a Gentoo |
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<a href="ts-0.4.ebuild">ebuild for 0.4</a>, but with a simple rename it becames |
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a valid <a href="ts-0.5.ebuild">ebuild for 0.5</a>.</p> |
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<p>I try to maintain Debian packages: |
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<a href="ts_0.5_i386.deb">ts_0.5_i386.deb</a>. (warning, it conflicts |
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with the binary also named 'ts' in the package 'moreutils')</p> |
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<p>Pascal Bleser packed the program for SuSE and openSuSE in <a |
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href="http://packman.links2linux.de/package/ts/">RPMs for various |
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platforms</a>.</p> |
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<h2>Manual</h2> |
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<p>Look at its <a href="man_ts.html">manpage</a> (v0.5). |
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Here you also have a copy of the help for the same version:</p> |
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<pre> |
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usage: ./ts [action] [-ngfmd] [-L <lab>] [cmd...] |
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Env vars: |
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TS_SOCKET the path to the unix socket used by the ts command. |
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TS_MAILTO where to mail the result (on -m). Local user by default. |
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TS_MAXFINISHED maximum finished jobs in the queue. |
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TS_ONFINISH binary called on job end (passes jobid, error, outfile, command). |
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TS_ENV command called on enqueue. Its output determines the job information. |
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TS_SAVELIST filename which will store the list, if the server dies. |
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Actions: |
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-K kill the task spooler server |
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-C clear the list of finished jobs |
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-l show the job list (default action) |
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-t [id] tail -f the output of the job. Last run if not specified. |
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-c [id] cat the output of the job. Last run if not specified. |
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-p [id] show the pid of the job. Last run if not specified. |
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-o [id] show the output file. Of last job run, if not specified. |
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-i [id] show job information. Of last job run, if not specified. |
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-s [id] show the job state. Of the last added, if not specified. |
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-r [id] remove a job. The last added, if not specified. |
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-w [id] wait for a job. The last added, if not specified. |
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-u [id] put that job first. The last added, if not specified. |
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-U <id-id> swap two jobs in the queue. |
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-h show this help |
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-V show the program version |
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Options adding jobs: |
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-n don't store the output of the command. |
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-g gzip the stored output (if not -n). |
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-f don't fork into background. |
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-m send the output by e-mail (uses sendmail). |
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-d the job will be run only if the job before ends well |
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-L <lab> name this task with a label, to be distinguished on listing. |
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</pre> |
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<h2>Thanks</h2> |
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<ul> |
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<li>To Raúl Salinas, for his inspiring ideas |
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<li>To Alessandro Öhler, the first non-acquaintance user, who proposed and |
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created the mailing list. |
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<li>Андрею Пантюхину, who created the <em>BSD port</em>. |
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<li>To the useful, although sometimes uncomfortable, UNIX interface. |
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<li>To GNU, an ugly but working and helpful ol' UNIX implementation. |
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</ul> |
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<address>Author: |
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<a href="http://vicerveza.homeunix.net/~viric/">Lluís Batlle i Rossell</a>, |
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viric_at_vicerveza_dot_homeunix_dot_net</address> |
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</body> |