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Andras Pataki

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12/17/2021

07:11 PM mgr Tasks #53622: User + Dev Monthly Meeting: Collect osdmaps for balancer testing
On our large cluster, the whole upmap balancing mechanism fails - looks like a bug in the ceph C++ code (not the mgr ...

12/13/2021

06:55 PM CephFS Bug #44100: cephfs rsync kworker high load.
We've recently started using cephfs snapshots and are running into a similar issue with the kernel client. It seems ...

11/15/2021

05:42 PM CephFS Bug #53192: High cephfs MDS latency and CPU load with snapshots and unlink operations
Thanks Patrick! How safe do you feel this patch is? Does it need a lot of testing or is it safe to deploy?

11/12/2021

10:28 AM CephFS Bug #53192: High cephfs MDS latency and CPU load with snapshots and unlink operations
That's great news! I'm also trying to set up a test environment to reproduce the issue outside our main cluster (eye...

11/09/2021

04:35 PM CephFS Bug #53192: High cephfs MDS latency and CPU load with snapshots and unlink operations
I've done some further debugging to understand the MDS performance problem that has been impacting us more. The fini...

11/08/2021

04:52 PM CephFS Bug #53192 (Fix Under Review): High cephfs MDS latency and CPU load with snapshots and unlink ope...
We have recently enabled snapshots on our large Nautilus cluster (running 14.2.20) and our fairly smooth running ceph...

11/03/2021

09:19 AM CephFS Bug #49132: mds crashed "assert_condition": "state == LOCK_XLOCK || state == LOCK_XLOCKDONE",
I haven't had luck keeping the MDS running well with higher log levels unfortunately. However, I do have one more da...

08/19/2021

06:00 PM CephFS Bug #49132: mds crashed "assert_condition": "state == LOCK_XLOCK || state == LOCK_XLOCKDONE",
max_mds is 1 - we are running a single active MDS only. The clients are all ceph-fuse.
I've tried setting the MDS l...

08/03/2021

01:04 AM CephFS Bug #49132: mds crashed "assert_condition": "state == LOCK_XLOCK || state == LOCK_XLOCKDONE",
...

07/23/2021

10:10 PM RADOS Bug #51729: Upmap verification fails for multi-level crush rule
Binary osd map attached.

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