[Pacemaker] Using Cluster Test Suite (CTS) with "debug: on" in corosync.conf failed

[Dejan Muhamedagic]

Hi,

On Fri, Apr 13, 2012 at 03:26:02PM +0200, Timo Schäpe wrote:
> Am 10.04.2012 23:43, schrieb Andrew Beekhof:
> > On Tue, Apr 10, 2012 at 11:05 PM, Timo Schäpe <schaepe at dfn-cert.de> wrote:
> >> Hi,
> >> for whom it may interest, here's something that cost me a whole day of work:
> >>
> >> I used CTS to test my cluster configuration and it worked fine. For
> >> debugging a resource agent I switched on the debug output in corosync.conf:
> >>
> >> logging {
> >>        [...]
> >>        debug: on
> >>        [...]
> >> }
> >>
> >> After I fixed the bug, I forgot to switch debug output off. This caused
> >> most of the CTS tests to fail with this warning:
> >>
> >> CTS: Warn: Startup pattern not found: myhost crmd:.*The local CRM is
> >> operational
> >>
> >> After I switched debug output off, the CTS worked fine as before.
> > 
> > We've since added a BadNews pattern that looks for syslog messages
> > being dropped/throttled.
> > 
> > How was your experience with CTS otherwise?
> > Periodically I try to improve the usability so that eventually
> > non-developers can use it, it would be interesting to hear how we're
> > doing.
> 
> It was easy for me to work with CTS. I read about the basics of CTS in
> the book of Michael Schwartzkopff (Clusterbau). Some deeper information
> about the configuration I got from the README and that was enough to
> start some tests.
> 
> What I missed is a short explanation of the tests and the meaning of
> their failures. For example my cluster fails completly at the
> ResourceRecover and Reattach tests. But unfortunately I only know the
> meaning of the ResourceRecover test, because there is an explanation in
> the Schwartzkopff book. Maybe there is an online resource that I had
> overlooked till now.
> 
> And I am not sure, how I can test a cluster with STONITH resources with
> the CTS. Should I use the stonith-ssh?

You can use any stonith resource you have. Look for stonith-type
and stonith-args in python CTSlab.py --help output.

In the CTS generated configuration, external/ssh stonith agent
is used.

Thanks,

Dejan

> -- 
> Dipl.-Inf. Timo Schaepe                     (Projekt- u. Entwicklungsteam)
> Phone:+49 40 808077-650   Fax:+49 40 808077556    Mail:schaepe at dfn-cert.de
> 
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