Re: MDS demons failing

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On Fri, Jul 8, 2022 at 1:58 PM Santhosh Alugubelly
<spamsanthosh219@xxxxxxxxx> wrote:
>
> Hello ceph community,
>
> Our ceph cluster is in the version 16.2.4. Our cluster is around 1
> year old. All of the sudden MDS demons went into the failed state and
> also it is showing that 1 filesystem is in degraded state. We tried to
> restart the demons then it came into the running state and then within
> 30 seconds it again went into a failed state. Currently we are not
> seeing any client IO on the cluster.
>
> We tried to restart the hosts but again MDS demons are going to fail state.

Could you share MDS logs?

>
> Here is the current health message
>
> 3 failed cephadm daemon(s)
> 1 filesystem is degraded
> insufficient standby MDS daemons available
> 1 MDSs behind on trimming
> 1 filesystem is online with fewer MDS than max_mds
>
>
>
> Our cluster overview
> No of MDS - 3
> No of MONs - 5
> No of MGRs - 5
> No of OSDs - 18 (on 9 hosts)
>
> If any additional details are required about cluster configuration
> i'll try to provide. Any help would be appreciated.
>
>
> Thanks,
>
> Santhosh.
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>


-- 
Cheers,
Venky

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