[Pacemaker] error with cib synchronisation on disk

[Andrew Beekhof]

On 15/05/2013, at 9:53 PM, Халезов Иван <i.khalezov at rts.ru> wrote:

> Hello everyone!
> 
> Some problems occured with synchronisation CIB configuration to disk.
> I have this errors in pacemaker's logfile:

What were the messages before this?
Did it happen once or many times?  
At startup or while the cluster was running?

> 
> May 14 13:29:13 iblade6 cluster:    error: validate_cib_digest: Digest comparision failed: expected 2c91194022c98636f90df9dd5e7176c6 (/var/lib/heartbeat/crm/cib.Zm249H), calculated bc1
> 60870924630b3907c8cb1c3128eee
> May 14 13:29:13 iblade6 cluster:    error: retrieveCib: Checksum of /var/lib/heartbeat/crm/cib.a024wF failed!  Configuration contents ignored!
> May 14 13:29:13 iblade6 cluster:    error: retrieveCib: Usually this is caused by manual changes, please refer to http://clusterlabs.org/wiki/FAQ#cib_changes_detected
> May 14 13:29:13 iblade6 cluster:    error: crm_abort: write_cib_contents: Triggered fatal assert at io.c:662 : retrieveCib(tmp1, tmp2, FALSE) != NULL
> May 14 13:29:13 iblade6 pengine[2852]:   notice: process_pe_message: Transition 41: PEngine Input stored in: /var/lib/pengine/pe-input-452.bz2
> May 14 13:29:13 iblade6 cib[2848]:    error: cib_diskwrite_complete: Disk write failed: status=134, signo=6, exitcode=0
> May 14 13:29:13 iblade6 cib[2848]:    error: cib_diskwrite_complete: Disabling disk writes after write failure
> 
> 
> I didn't find anything about it, at this link: http://clusterlabs.org/wiki/FAQ#cib_changes_detected
> 
> What can be the reason of this error? 
> Why the checksum of a cib file can be wrong?
> Is it a problem of a hdd, or pacemaker bug or something else? (there are no disk or filesystem errors in syslog)
> 
> I had a pair of such incidents during the last week.
> 
> 
> My cluster installation:  CentOS 6.4 x86_64, pacemaker 1.1.7, corosync 2.3.0
> 
> Thank you in advance!
> 
> Ivan Khalezov.
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