[ceph-users] Re: CEPHFS - MDS gracefull handover of rank 0

2021-02-12 Thread Stefan Kooman
On 1/27/21 9:08 AM, Martin Hronek wrote: So before the next MDS the FS config where changed to one active and one standby-replay node, the idea was that since the MDS replay nodes follows the active one the handover would be smoother. The active state was reached faster, but we still

[ceph-users] Re: CEPHFS - MDS gracefull handover of rank 0

2021-01-29 Thread Stefan Kooman
On 1/28/21 5:10 AM, Konstantin Shalygin wrote: Interesting, thanks. Do you know tracker ticket for this? No, not even sure if there is a tracker for this. Gr. Stefan ___ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to

[ceph-users] Re: CEPHFS - MDS gracefull handover of rank 0

2021-01-27 Thread Stefan Kooman
On 1/27/21 3:51 PM, Konstantin Shalygin wrote: Martin, also before restart - issue cache drop command to active mds Don't do this if you have a large cache. It will make your MDS unresponsive and replaced by a standby if available. There is a PR to fix this:

[ceph-users] Re: CEPHFS - MDS gracefull handover of rank 0

2021-01-27 Thread Konstantin Shalygin
Martin, also before restart - issue cache drop command to active mds k Sent from my iPhone > On 27 Jan 2021, at 11:58, Dan van der Ster wrote: > > In our experience failovers are largely transparent if the mds has: > >mds session blacklist on timeout = false >mds session blacklist

[ceph-users] Re: CEPHFS - MDS gracefull handover of rank 0

2021-01-27 Thread Dan van der Ster
Hi, In our experience failovers are largely transparent if the mds has: mds session blacklist on timeout = false mds session blacklist on evict = false And clients have client reconnect stale = true Cheers, Dan On Wed, Jan 27, 2021 at 9:09 AM Martin Hronek wrote: > > Hello