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hook: log the exit status of the hook not 256

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Adjust the docs accordingly. See http://bugs.debian.org/701570.
This commit is contained in:
Guido Günther 2013-02-24 19:43:04 +01:00
parent 1cf97c87c0
commit c7e85db61b
1 changed files with 3 additions and 2 deletions
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docs/hooks.html.in
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@ -239,13 +239,14 @@
<p>If a hook script returns with an exit code of 0, the libvirt daemon
regards this as successful and performs no logging of it.</p>
<p>However, if a hook script returns with a non zero exit code, the libvirt
daemon regards this as a failure, logs it with return code 256, and
daemon regards this as a failure, logs its return code, and
additionally logs anything on stderr the hook script returns.</p>
<p>For example, a hook script might use this code to indicate failure,
and send a text string to stderr:</p>
<pre>echo "Could not find required XYZZY" &gt;&amp;2
exit 1</pre>
<p>The resulting entry in the libvirt log will appear as:</p>
<pre>20:02:40.297: error : virHookCall:416 : Hook script execution failed: Hook script /etc/libvirt/hooks/qemu qemu failed with error code 256:Could not find required XYZZY</pre>
<pre>20:02:40.297: error : virHookCall:285 : Hook script execution failed: internal error Child process (LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
HOME=/root USER=root LOGNAME=root /etc/libvirt/hooks/qemu qemu prepare begin -) unexpected exit status 1: Could not find required XYZZY</pre>
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</html>