Re: mds crash loop

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-----Original message-----
From:	Yan, Zheng <ukernel@xxxxxxxxx>
Sent:	Wed 06-11-2019 14:16
Subject:	Re:  mds crash loop
To:	Karsten Nielsen <karsten@xxxxxxxxxx>; 
CC:	ceph-users@xxxxxxx; 
> On Wed, Nov 6, 2019 at 4:42 PM Karsten Nielsen <karsten@xxxxxxxxxx> wrote:
> >
> > -----Original message-----
> > From:   Yan, Zheng <ukernel@xxxxxxxxx>
> > Sent:   Wed 06-11-2019 08:15
> > Subject:        Re:  mds crash loop
> > To:     Karsten Nielsen <karsten@xxxxxxxxxx>;
> > CC:     ceph-users@xxxxxxx;
> > > On Tue, Nov 5, 2019 at 5:29 PM Karsten Nielsen <karsten@xxxxxxxxxx> wrote:
> > > >
> > > > Hi,
> > > >
> > > > Last week I upgraded my ceph cluster from luminus to mimic 13.2.6
> > > > It was running fine for a while but yesterday my mds went into a crash 
> loop.
> > > >
> > > > I have 1 active and 1 standby mds for my cephfs both of which is running 
> the
> > > same crash loop.
> > > > I am running ceph based on https://hub.docker.com/r/ceph/daemon version
> > > v3.2.7-stable-3.2-minic-centos-7-x86_64 with a etcd kv store.
> > > >
> > > > Log details are: https://paste.debian.net/1113943/
> > > >
> > >
> > > please try again with debug_mds=20.  Thanks
> > >
> > > Yan, Zheng
> >
> > Yes I have set that and had to move to pastebin.com as debian apperently only 
> supports 150k
> >
> >
> > https://pastebin.com/Gv7c5h54
> >
> 
> Looks like on-disk root inode is corrupted. have you encountered any
> unusually things during the upgrade?
> 
> please run 'rados -p <cephfs metadata pool> stat 1.00000000.inode' ,
> check if the object is modified before or after the 'luminous ->
> 13.2.6' upgrade.
> To fix the corrupted object.  Run  'cephfs-data-scan init
> --force-init'. Then restart mds. After mds become active, run 'ceph
> daemon mds.x scrub_path / force repair'
> 

I followed the steps I got the mds started but now a lot of files are in lost+found 24283 and I have these errors in the mds log

2019-11-06 20:20:18.215 7f0bd9090700  1 mds.0.32011 cluster recovered.
2019-11-06 20:20:19.019 7f0bd2dfa700  0 mds.0.cache.dir(0x100013acfcb) _fetched missing object for [dir 0x100013acfcb /nextcloud/custom_apps/carnet/ [2,head] auth v=0 cv=0/0 ap=1+0+0 state=1073741888|fetching f() n() hs=0+0,ss=0+0 | waiter=1 authpin=1 0x55d4dc4f5100]
2019-11-06 20:20:19.019 7f0bd2dfa700 -1 log_channel(cluster) log [ERR] : dir 0x100013acfcb object missing on disk; some files may be lost (/nextcloud/custom_apps/carnet)
2019-11-06 20:20:19.275 7f0bd2dfa700  0 mds.0.cache.dir(0x100013a3156) _fetched missing object for [dir 0x100013a3156 /nextcloud/custom_apps/mail/ [2,head] auth v=0 cv=0/0 ap=1+0+0 state=1073741888|fetching f() n() hs=0+0,ss=0+0 | waiter=1 authpin=1 0x55d4dcc40000]
2019-11-06 20:20:19.275 7f0bd2dfa700 -1 log_channel(cluster) log [ERR] : dir 0x100013a3156 object missing on disk; some files may be lost (/nextcloud/custom_apps/mail)
2019-11-06 20:20:19.371 7f0bd2dfa700  0 mds.0.cache.dir(0x100013abb3c) _fetched missing object for [dir 0x100013abb3c /nextcloud/custom_apps/passwords/ [2,head] auth v=0 cv=0/0 ap=1+0+0 state=1073741888|fetching f() n() hs=0+0,ss=0+0 | waiter=1 authpin=1 0x55d4dcc40700]
2019-11-06 20:20:19.371 7f0bd2dfa700 -1 log_channel(cluster) log [ERR] : dir 0x100013abb3c object missing on disk; some files may be lost (/nextcloud/custom_apps/passwords)
2019-11-06 20:20:19.383 7f0bd2dfa700  0 mds.0.cache.dir(0x100013a9b9b) _fetched missing object for [dir 0x100013a9b9b /nextcloud/custom_apps/phonetrack/ [2,head] auth v=0 cv=0/0 ap=1+0+0 state=1073741888|fetching f() n() hs=0+0,ss=0+0 | waiter=1 authpin=1 0x55d4dcc40e00]
2019-11-06 20:20:19.383 7f0bd2dfa700 -1 log_channel(cluster) log [ERR] : dir 0x100013a9b9b object missing on disk; some files may be lost (/nextcloud/custom_apps/phonetrack)
2019-11-06 20:20:19.431 7f0bd2dfa700  0 mds.0.cache.dir(0x100013a2659) _fetched missing object for [dir 0x100013a2659 /nextcloud/custom_apps/richdocuments/ [2,head] auth v=0 cv=0/0 ap=1+0+0 state=1073741888|fetching f() n() hs=0+0,ss=0+0 | waiter=1 authpin=1 0x55d4dcc41500]
2019-11-06 20:20:19.431 7f0bd2dfa700 -1 log_channel(cluster) log [ERR] : dir 0x100013a2659 object missing on disk; some files may be lost (/nextcloud/custom_apps/richdocuments)
2019-11-06 20:20:22.360 7f0bd9090700  1 mds.k8s-node-01 Updating MDS map to version 32015 from mon.1


> 
> > - Karsten
> >
> > >
> > > > Thanks for any hints
> > > > - Karsten
> > > > _______________________________________________
> > > > ceph-users mailing list -- ceph-users@xxxxxxx
> > > > To unsubscribe send an email to ceph-users-leave@xxxxxxx
> > >
> > >
> 
>
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