[Pacemaker] Enabling debugging with cman, corosync, pacemaker at runtime

[Andrew Beekhof]

On 23/04/2013, at 2:51 PM, Andreas Mock <Andreas.Mock at web.de> wrote:

> Hi Andrew,
> 
> thank you for that hint.

no problem.
the basic idea is to be quiet by default but allow access to extreme levels of verbosity should the need arise :)


> 
> Best regards
> Andreas Mock
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: Andrew Beekhof [mailto:andrew at beekhof.net] 
> Gesendet: Dienstag, 23. April 2013 01:45
> An: The Pacemaker cluster resource manager
> Betreff: Re: [Pacemaker] Enabling debugging with cman, corosync, pacemaker
> at runtime
> 
> Depending on your version of pacemaker you can do...
> 
> # Enable trace logging (if it isn't already) killall -USR1 process_name
> 
> # Dump trace logging to disk
> killall -TRAP process_name
> 
> # Find out what file it was dumped to
> grep blackbox /var/log/messages
> 
> # Read it
> qb-blackbox /path/to/file
> 
> 
> Subsequent calls to "killall -TRAP ..." will have only logs since the last
> dump.
> 
> On 23/04/2013, at 2:41 AM, Andreas Mock <Andreas.Mock at web.de> wrote:
> 
>> Hi all,
>> 
>> is there a way to enable debug output on a cman, corosync, pacemaker 
>> stack without restarting the whole cman stuff.
>> 
>> I've found <logging debug="on"/> for cluster.conf, assuming that this 
>> determines the value of the config-db-keys cluster.logging.debug=on 
>> logging.debug=on
>> 
>> Is it enough to write new values to these keys?
>> Or do I have to notify one or several processes to react on this change?
>> 
>> Best regards
>> Andreas Mock
>> 
>> 
>> 
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>> 
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> 
> 
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> 
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> http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org
> 
> 
> _______________________________________________
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> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> 
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org