[ceph-users] Error in MDS (laggy or creshed)

Alfredo Daniel Rezinovsky alfrenovsky at gmail.com
Sun Oct 7 19:32:50 PDT 2018


I tried to downgrade and the mds still fails.

I removed the mds and created them again.

I already messed up with the purgue_queue. Can I reset the queue (with 
13.2.1) ?

Thanks for your help

On 07/10/18 23:18, Yan, Zheng wrote:
> Sorry there is bug in 13.2.2 that breaks compatibility of purge queue
> disk format. Please downgrading mds to 13.2.1, then run 'ceph mds
> repaired cephfs_name:0'.
>
> Regards
> Yan, Zheng
> On Mon, Oct 8, 2018 at 9:20 AM Alfredo Daniel Rezinovsky
> <alfrenovsky at gmail.com> wrote:
>> Cluster with 4 nodes
>>
>> node 1: 2 HDDs
>> node 2: 3 HDDs
>> node 3: 3 HDDs
>> node 4: 2 HDDs
>>
>> After a problem with upgrade from 13.2.1 to 13.2.2 (I restarted the
>> nodes 1 at a time, think that was the problem)
>>
>> I upgraded with ubuntu apt-get upgrade. I had 1 active mds at a time
>> when did the upgrade.
>>
>> All MDSs stopped working
>>
>> Status shows 1 crashed and no one in standby.
>>
>> If I restart an MDS status shows replay then crash with this log output:
>>
>>    ceph version 13.2.2 (02899bfda814146b021136e9d8e80eba494e1126) mimic
>> (stable)
>> 1: (()+0x3f5480) [0x555de8a51480]
>> 2: (()+0x12890) [0x7f6e4cb41890]
>> 3: (gsignal()+0xc7) [0x7f6e4bc39e97]
>> 4: (abort()+0x141) [0x7f6e4bc3b801]
>> 5: (ceph::__ceph_assert_fail(char const*, char const*, int, char
>> const*)+0x250) [0x7f6e4d22a710]
>> 6: (()+0x26c787) [0x7f6e4d22a787]
>> 7: (EMetaBlob::replay(MDSRank*, LogSegment*, MDSlaveUpdate*)+0x5f4b)
>> [0x555de8a3c83b]
>> 8: (EUpdate::replay(MDSRank*)+0x39) [0x555de8a3dd79]
>> 9: (MDLog::_replay_thread()+0x864) [0x555de89e6e04]
>> 10: (MDLog::ReplayThread::entry()+0xd) [0x555de8784ebd]
>> 11: (()+0x76db) [0x7f6e4cb366db]
>> 12: (clone()+0x3f) [0x7f6e4bd1c88f]
>> NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed
>> to interpret this
>>
>> journal reports OK
>>
>> Now im trying:
>>
>>    cephfs-data-scan scan_extents cephfs_data
>>
>>
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>> ceph-users at lists.ceph.com
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