Question about HA here: I understood the documentation of the fuse NFS client such that the connection state of all NFS clients is stored on ceph in rados objects and, if using a floating IP, the NFS clients should just recover from a short network timeout. Not sure if this is what should happen with this specific HA set-up in the original request, but a fail-over of the NFS server ought to be handled gracefully by starting a new one up with the IP of the down one. Or not? Best regards, ================= Frank Schilder AIT Risø Campus Bygning 109, rum S14 ________________________________________ From: Eugen Block <eblock@xxxxxx> Sent: Tuesday, April 16, 2024 11:24 AM To: ceph-users@xxxxxxx Subject: Re: Have a problem with haproxy/keepalived/ganesha/docker Ah, okay, thanks for the hint. In that case what I see is expected. Zitat von Robert Sander <r.sander@xxxxxxxxxxxxxxxxxxx>: > Hi, > > On 16.04.24 10:49, Eugen Block wrote: >> >> I believe I can confirm your suspicion, I have a test cluster on >> Reef 18.2.1 and deployed nfs without HAProxy but with keepalived [1]. >> Stopping the active NFS daemon doesn't trigger anything, the MGR >> notices that it's stopped at some point, but nothing else seems to >> happen. > > There is currently no failover for NFS. > > The ingress service (haproxy + keepalived) that cephadm deploys for > an NFS cluster does not have a health check configured. Haproxy does > not notice if a backend NFS server dies. This does not matter as > there is no failover and the NFS client cannot be "load balanced" to > another backend NFS server. > > There is no use to configure an ingress service currently without failover. > > The NFS clients have to remount the NFS share in case of their > current NFS server dies anyway. > > Regards > -- > Robert Sander > Heinlein Consulting GmbH > Schwedter Str. 8/9b, 10119 Berlin > > http://www.heinlein-support.de > > Tel: 030 / 405051-43 > Fax: 030 / 405051-19 > > Zwangsangaben lt. §35a GmbHG: > HRB 220009 B / Amtsgericht Berlin-Charlottenburg, > Geschäftsführer: Peer Heinlein -- Sitz: Berlin > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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