hi,
we were able to track this down to the auto balancer: disabling the auto
balancer and cleaning out old (and probably not very meaningful)
upmap-entries via ceph osd rm-pg-upmap-items brought back stable mgr
daemons and an usable dashboard.
the not-so-sensible upmap-entries might or might not
hi Lenz,
On 11/13/19 6:38 PM, Lenz Grimmer wrote:
> there have been several reports about Ceph mgr modules (not just the
> dashboard) experiencing hangs and freezes recently. The thread "mgr
> daemons becoming unresponsive" might give you some additional insight.
>
> Is the "device health
hi there,
the dashboard of our moderatly used cluster with 3 mon/mgr-nodes gets
stuck about 30 seconds after a mgr becomes active. the dashboard is not
usable anymore (ie: the mgr damon does not respond to http requests
anymore), although it comes back from the dead occasionally for a few
hi,
fyi …
cheers,
t.
Forwarded Message
Subject:Netzteilausfälle BARZ
Date: Fri, 27 Sep 2019 12:03:48 +0200
From: Berliner, Sascha
To: Plato, Michael , Schulze, Thoralf
CC: Obst, Bernd , Wötzel, Dirk
Hallo.
Hier der aktuelle Stand.
Das BARZ wird
hi there,
while debugging metadata servers reporting slow requests, we took a stab
at pinning directories of a cephfs like so:
setfattr -n ceph.dir.pin -v 1 /tubfs/kubernetes/
setfattr -n ceph.dir.pin -v 0 /tubfs/profiles/
setfattr -n ceph.dir.pin -v 0 /tubfs/homes
on the active mds for rank 0,
hi Zheng,
On 8/26/19 3:31 PM, Yan, Zheng wrote:
[…]
> change code to :
[…]
we can happily confirm that this resolves the issue.
thank you _very_ much & with kind regards,
t.
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___
ceph-users
hi Zheng -
On 8/26/19 2:55 PM, Yan, Zheng wrote:
> I tracked down the bug
> https://tracker.ceph.com/issues/41434
wow, that was quick - thank you for investigating. we are looking
forward for the fix :-)
in the meantime, is there anything we can do to prevent q ==
p->second.end() from
hi Zheng,
On 8/21/19 4:32 AM, Yan, Zheng wrote:
> Please enable debug mds (debug_mds=10), and try reproducing it again.
please find the logs at
https://www.user.tu-berlin.de/thoralf.schulze/ceph-debug.tar.xz .
we managed to reproduce the issue as a worst case scenario: before
snapshotting,
hi zheng,
On 8/21/19 4:32 AM, Yan, Zheng wrote:
> Please enable debug mds (debug_mds=10), and try reproducing it again.
we will get back with the logs on monday.
thank you & with kind regards,
t.
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hi there,
we are struggling with the creation of cephfs-snapshots: doing so
reproducible causes a failover of our metadata servers. afterwards, the
demoted mds servers won't be available as standby servers and the mds
daemons on these machines have to be manually restarted. more often than
we
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