65 lines
2.4 KiB
XML
65 lines
2.4 KiB
XML
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<chapter id="lj.install.schedule_tasks">
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<title>Scheduling Maintenence tasks</title>
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<para>
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From the LiveJournal user account (or whatever user is running LJ), you need to
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install some crontabs. These are periodic commands that run and manage your
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LiveJournal installation.
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</para>
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<screen><prompt>$</prompt> <userinput>crontab -e</userinput></screen>
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<note>
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<para>This will bring up either your <envar>$EDITOR</envar>, or <application>vi</application>.
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If you want to set your editor explicitly, do:
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<screen><prompt>$</prompt> <command>EDITOR=<replaceable>pico</replaceable> crontab -e</command></screen>
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</para>
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</note>
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<para>
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Now, enter the following stuff between the dotted lines below. Not all of it is necessary.
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See the comments below. The <literal>LJHOME=</literal> line is required. See the section
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above about how the <envar><link linkend='lj.install.ljhome'>$LJHOME</link></envar> environment
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variable is required everywhere. This is another place.
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</para>
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<programlisting><![CDATA[LJHOME=/home/lj
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MAILTO=youremail@wherever.com
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# Essential:
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* */12 * * * /home/lj/bin/ljmaint.pl clean_caches >/dev/null
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# Optional, if you want birthday mail, and the random user feature:
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# (you can remove parts)
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5 1 * * * /home/lj/bin/ljmaint.pl bdaymail build_randomuserset >/dev/null
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# If you want statistics:
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30 1 * * * /home/lj/bin/ljmaint.pl genstats genstatspics genstats_size >/dev/null
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5 2 * * 0 /home/lj/bin/ljmaint.pl genstats_weekly > /dev/null
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# Various tasks
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15 1 * * * /home/lj/bin/ljmaint.pl joinmail > /dev/null
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30 * * * * /home/lj/bin/ljmaint.pl synsuck > /dev/null
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5 2 * * 0 /home/lj/bin/ljmaint.pl memeclean > /dev/null
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# If you're running a high-load site with $LJ::BUFFER_QUERIES on,
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# there's another one to install:
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*/5 * * * * /home/lj/bin/qbufferd.pl >/dev/null
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]]></programlisting>
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<para>
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If query buffering is off, you can still run that, but it's not needed.
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Packagers should make their packages install it, since it doesn't hurt if it's
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running and not used. It'll die off right away if it realizes it's not needed.
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Otherwise it'll start up in the background and run every 10 seconds or so.
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Future startups by cron will only make sure it hasn't died (like if the database dies).
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</para>
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</chapter>
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<!--
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Local Variables:
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mode:sgml
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sgml-parent-document: ("index.xml" "part" "chapter")
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End:
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-->
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