Re: osdc/ObjectCacher.cc: 834: FAILED assert(ob->last_commit_tid < tid)

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Hi Martin-

On Thu, 14 Feb 2013, Martin Mailand wrote:
> Hi List,
> 
> I get reproducible this assertion, how can I help to debug it?

Can you describe the workload?  Are the OSDs also running 0.56.2(+)?  Any 
other activity on the server side (data migration, OSD failure, etc.) that 
may have contributed?

We just reopened http://tracker.ceph.com/issues/2947 to track this.  I'm 
working on reproducing it now as well.

Thanks!
sage



> 
> 
> -martin
> 
> (Lese Datenbank ... 52246 Dateien und Verzeichnisse sind derzeit
> installiert.)
> Vorbereitung zum Ersetzen von linux-firmware 1.79 (durch
> .../linux-firmware_1.79.1_all.deb) ...
> Ersatz f?r linux-firmware wird entpackt ...
> osdc/ObjectCacher.cc: In function 'void
> ObjectCacher::bh_write_commit(int64_t, sobject_t, loff_t, uint64_t,
> tid_t, int)' thread 7f72b7fff700 time 2013-02-14 16:04:48.867285
> osdc/ObjectCacher.cc: 834: FAILED assert(ob->last_commit_tid < tid)
>  ceph version 0.56.2 (586538e22afba85c59beda49789ec42024e7a061)
>  1: (ObjectCacher::bh_write_commit(long, sobject_t, long, unsigned long,
> unsigned long, int)+0xd68) [0x7f72d4050848]
>  2: (ObjectCacher::C_WriteCommit::finish(int)+0x6b) [0x7f72d405742b]
>  3: (Context::complete(int)+0xa) [0x7f72d400f9ba]
>  4: (librbd::C_Request::finish(int)+0x85) [0x7f72d403f145]
>  5: (Context::complete(int)+0xa) [0x7f72d400f9ba]
>  6: (librbd::rados_req_cb(void*, void*)+0x47) [0x7f72d40241b7]
>  7: (librados::C_AioSafe::finish(int)+0x1d) [0x7f72d33db16d]
>  8: (Finisher::finisher_thread_entry()+0x1c0) [0x7f72d3444e50]
>  9: (()+0x7e9a) [0x7f72d03c7e9a]
>  10: (clone()+0x6d) [0x7f72d00f4cbd]
>  NOTE: a copy of the executable, or `objdump -rdS <executable>` is
> needed to interpret this.
> terminate called after throwing an instance of 'ceph::FailedAssertion'
> Aborted
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