Ceph

12/10/2021

11:13 AM CephFS Bug #53542: Ceph Metadata Pool disk throughput usage increasing

We are considering to increase the "activity" based thresholds to see if we get less metadata IO.
We were actually... Andras Sali

10:06 AM CephFS Bug #53542: Ceph Metadata Pool disk throughput usage increasing

Thanks for the reply, we tried decreasing the mds_log_max_segments option, but didn't really notice a difference.
... Andras Sali

08:55 AM CephFS Bug #53542: Ceph Metadata Pool disk throughput usage increasing

We also did a dump of the objecter_requests and it seems there are some large objects written by the mds-es?
ceph ... Andras Sali

12/08/2021

05:05 PM CephFS Bug #53542 (Fix Under Review): Ceph Metadata Pool disk throughput usage increasing

Hi All,
We have been observing that if we let our MDS run for some time, the bandwidth usage of the disks in the m... Andras Sali

03/18/2021

04:50 AM CephFS Bug #44100: cephfs rsync kworker high load.

We have also experienced a similar issue, where kernel mount performance degraded severely while doing rsync (running... Andras Sali

02/25/2021

08:16 PM CephFS Feature #46074: mds: provide altrenatives to increase the total cephfs subvolume snapshot counts to greater than the current 400 across a Cephfs volume

When upgrading an existing cluster with subvolumes (csi volumes), does the old limit of 400 snapshots still apply to ... Andras Sali

01/12/2021

04:19 PM CephFS Backport #47095: octopus: mds: provide altrenatives to increase the total cephfs subvolume snapshot counts to greater than the current 400 across a Cephfs volume

Really looking forward to getting this fix with 15.2.9 - is there a planned release date? Andras Sali

11/09/2020

09:39 AM CephFS Backport #47095: octopus: mds: provide altrenatives to increase the total cephfs subvolume snapshot counts to greater than the current 400 across a Cephfs volume

Is there any news when the backport will happen to octopus? Without this backport, snapshotting is unfortunately not ... Andras Sali