On Wed, 29 May 2024, Eugen Block wrote:
> I'm not really sure either, what about this?
>
> ceph mds repaired <rank>
I think it works only for 'damaged' MDs.
N.
> The docs state:
>
> >Mark the file system rank as repaired. Unlike the name suggests, this command
> >does not change a MDS; it manipulates the file system rank which has been
> >marked damaged.
>
> Maybe that could bring it back up? Did you set max_mds to 1 at some point? If
> you do it now (and you currently have only one active MDS), maybe that would
> clean up the failed rank as well?
>
>
> Zitat von "Noe P." <ml@am-rand.berlin>:
>
> >Hi,
> >
> >after our desaster yesterday, it seems that we got our MONs back.
> >One of the filesystems, however, seems in a strange state:
> >
> > % ceph fs status
> >
> > ....
> > fs_cluster - 782 clients
> > ==========
> > RANK STATE MDS ACTIVITY DNS INOS DIRS CAPS
> > 0 active cephmd6a Reqs: 5 /s 13.2M 13.2M 1425k 51.4k
> > 1 failed
> > POOL TYPE USED AVAIL
> > fs_cluster_meta metadata 3594G 53.5T
> > fs_cluster_data data 421T 53.5T
> > ....
> > STANDBY MDS
> > cephmd6b
> > cephmd4b
> > MDS version: ceph version 17.2.7 (b12291d110049b2f35e32e0de30d70e9a4c060d2)
> > quincy (stable)
> >
> >
> > % ceph fs dump
> > ....
> > Filesystem 'fs_cluster' (3)
> > fs_name fs_cluster
> > epoch 3068261
> > flags 12 joinable allow_snaps allow_multimds_snaps
> > created 2022-08-26T15:55:07.186477+0200
> > modified 2024-05-29T12:43:30.606431+0200
> > tableserver 0
> > root 0
> > session_timeout 60
> > session_autoclose 300
> > max_file_size 4398046511104
> > required_client_features {}
> > last_failure 0
> > last_failure_osd_epoch 1777109
> > compat compat={},rocompat={},incompat={1=base v0.20,2=client writeable
> > ranges,3=default file layouts on dirs,4=dir inode in separate object,5=mds
> > uses versioned encoding,6=dirfrag is stored in omap,7=mds uses inline
> > data,8=no anchor table,9=file layout v2,10=snaprealm v2}
> > max_mds 2
> > in 0,1
> > up {0=911794623}
> > failed
> > damaged
> > stopped 2,3
> > data_pools [32]
> > metadata_pool 33
> > inline_data disabled
> > balancer
> > standby_count_wanted 1
> > [mds.cephmd6a{0:911794623} state up:active seq 44701 addr
> > [v2:10.13.5.6:6800/189084355,v1:10.13.5.6:6801/189084355] compat
> > {c=[1],r=[1],i=[7ff]}]
> >
> >
> >We would like to get rid of the failed rank 1 (without crashing the MONs)
> >and have a 2nd MD from the standbys step in .
> >
> >Anyone have an idea how to do this ?
> >I'm a bit reluctant to try 'ceph mds rmfailed', as this seems to have
> >triggered the MONs to crash.
> >
> >Regards,
> > Noe
> >_______________________________________________
> >ceph-users mailing list -- ceph-users@ceph.io
> >To unsubscribe send an email to ceph-users-le...@ceph.io
>
>
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