It could also be the kernel client versions, what are you running? I remember older kernel clients didn't always deal with recovery scenarios very well.
On Mon, Jan 21, 2019 at 9:18 AM Marc Roos <m.r...@f1-outsourcing.eu> wrote: > > > I think his downtime is coming from the mds failover, that takes a while > in my case to. But I am not using the cephfs that much yet. > > > > -----Original Message----- > From: Robert Sander [mailto:r.san...@heinlein-support.de] > Sent: 21 January 2019 10:05 > To: ceph-users@lists.ceph.com > Subject: Re: [ceph-users] How To Properly Failover a HA Setup > > On 21.01.19 09:22, Charles Tassell wrote: > > Hello Everyone, > > > > I've got a 3 node Jewel cluster setup, and I think I'm missing > > something. When I want to take one of my nodes down for maintenance > > (kernel upgrades or the like) all of my clients (running the kernel > > module for the cephfs filesystem) hang for a couple of minutes before > > the redundant servers kick in. > > Have you set the noout flag before doing cluster maintenance? > > ceph osd set noout > > and afterwards > > ceph osd unset noout > > Regards > -- > Robert Sander > Heinlein Support GmbH > Schwedter Str. 8/9b, 10119 Berlin > > https://www.heinlein-support.de > > Tel: 030 / 405051-43 > Fax: 030 / 405051-19 > > Amtsgericht Berlin-Charlottenburg - HRB 93818 B > Geschäftsführer: Peer Heinlein - Sitz: Berlin > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
_______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
