Re: Mds daemon damaged - assert failed

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Hi,

The [2] is the fix for [1] and should be backported? Currently fields are not filled, so no one knows that backports are needed


k

> On 27 Sep 2024, at 11:01, Frédéric Nass <frederic.nass@xxxxxxxxxxxxxxxx> wrote:
> 
> Hi George,
> 
> Looks like you hit this one [1]. Can't find the fix [2] in Reef release notes [3]. You'll have to cherry pick it and build sources or wait for it to come to next build.
> 
> Regards,
> Frédéric.
> 
> [1] https://tracker.ceph.com/issues/58878
> [2] https://github.com/ceph/ceph/pull/55265
> [3] https://docs.ceph.com/en/latest/releases/reef/#v18-2-4-reef
> 
> ----- Le 24 Sep 24, à 0:32, Kyriazis, George george.kyriazis@xxxxxxxxx a écrit :
> 
>> Hello ceph users,
>> 
>> I am in the unfortunate situation of having a status of “1 mds daemon damaged”.
>> Looking at the logs, I see that the daemon died with an assert as follows:
>> 
>> ./src/osdc/Journaler.cc: 1368: FAILED ceph_assert(trim_to > trimming_pos)
>> 
>> ceph version 18.2.2 (e9fe820e7fffd1b7cde143a9f77653b73fcec748) reef (stable)
>> 1: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x12a)
>> [0x73a83189d7d9]
>> 2: /usr/lib/ceph/libceph-common.so.2(+0x29d974) [0x73a83189d974]
>> 3: (Journaler::_trim()+0x671) [0x57235caa70b1]
>> 4: (Journaler::_finish_write_head(int, Journaler::Header&, C_OnFinisher*)+0x171)
>> [0x57235caaa8f1]
>> 5: (Context::complete(int)+0x9) [0x57235c716849]
>> 6: (Finisher::finisher_thread_entry()+0x16d) [0x73a83194659d]
>> 7: /lib/x86_64-linux-gnu/libc.so.6(+0x89134) [0x73a8310a8134]
>> 8: /lib/x86_64-linux-gnu/libc.so.6(+0x1097dc) [0x73a8311287dc]
>> 
>>    0> 2024-09-23T14:10:26.490-0500 73a822c006c0 -1 *** Caught signal (Aborted) **
>> in thread 73a822c006c0 thread_name:MR_Finisher
>> 
>> ceph version 18.2.2 (e9fe820e7fffd1b7cde143a9f77653b73fcec748) reef (stable)
>> 1: /lib/x86_64-linux-gnu/libc.so.6(+0x3c050) [0x73a83105b050]
>> 2: /lib/x86_64-linux-gnu/libc.so.6(+0x8ae2c) [0x73a8310a9e2c]
>> 3: gsignal()
>> 4: abort()
>> 5: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x185)
>> [0x73a83189d834]
>> 6: /usr/lib/ceph/libceph-common.so.2(+0x29d974) [0x73a83189d974]
>> 7: (Journaler::_trim()+0x671) [0x57235caa70b1]
>> 8: (Journaler::_finish_write_head(int, Journaler::Header&, C_OnFinisher*)+0x171)
>> [0x57235caaa8f1]
>> 9: (Context::complete(int)+0x9) [0x57235c716849]
>> 10: (Finisher::finisher_thread_entry()+0x16d) [0x73a83194659d]
>> 11: /lib/x86_64-linux-gnu/libc.so.6(+0x89134) [0x73a8310a8134]
>> 12: /lib/x86_64-linux-gnu/libc.so.6(+0x1097dc) [0x73a8311287dc]
>> NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to
>> interpret this.
>> 
>> 
>> As listed above, I am running 18.2.2 on a proxmox cluster with a hybrid hdd/sdd
>> setup.  2 cephfs filesystems.  The mds responsible for the hdd filesystem is
>> the one that died.
>> 
>> Output of ceph -s follows:
>> 
>> root@vis-mgmt:~/bin# ceph -s
>> cluster:
>>   id:     ec2c9542-dc1b-4af6-9f21-0adbcabb9452
>>   health: HEALTH_ERR
>>           1 filesystem is degraded
>>           1 filesystem is offline
>>           1 mds daemon damaged
>>           5 pgs not scrubbed in time
>>           1 daemons have recently crashed
>>   services:
>>   mon: 5 daemons, quorum vis-hsw-01,vis-skx-01,vis-clx-15,vis-clx-04,vis-icx-00
>>   (age 6m)
>>   mgr: vis-hsw-02(active, since 13d), standbys: vis-skx-02, vis-hsw-04,
>>   vis-clx-08, vis-clx-02
>>   mds: 1/2 daemons up, 5 standby
>>   osd: 97 osds: 97 up (since 3h), 97 in (since 4d)
>>   data:
>>   volumes: 1/2 healthy, 1 recovering; 1 damaged
>>   pools:   14 pools, 1961 pgs
>>   objects: 223.70M objects, 304 TiB
>>   usage:   805 TiB used, 383 TiB / 1.2 PiB avail
>>   pgs:     1948 active+clean
>>            9    active+clean+scrubbing+deep
>>            4    active+clean+scrubbing
>>   io:
>>   client:   86 KiB/s rd, 5.5 MiB/s wr, 64 op/s rd, 26 op/s wr
>> 
>> 
>> 
>> I tried restarting all the mds deamons but they are all marked as “standby”.  I
>> also tried restarting all the mons and then the mds daemons again, but that
>> didn’t help.
>> 
>> Much help is appreciated!
>> 
>> Thank you!
>> 
>> George
>> 
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