I put the systemd service files that I use to map a RBD and mount the filesystem before starting up PostgreSQL into the following gist. It's probably not perfect, but it seems to work for me. Personally, I like using a native service to accomplish this rather than using fstab and the generator. https://gist.github.com/jcollie/60f8b278d1ac5eadb4794db1f4c0e87d On Mon, Aug 22, 2016 at 1:16 PM, K.C. Wong <kcwong@xxxxxxxxxxx> wrote: > Folks, > > I have some services that depends on RBD images getting > mounted prior to service start-up. I am having a really > hard time getting out of systemd dependency hell. > > * I create a run-once systemd service that basically does > the rbd map operation, and set it start after network.target, > network-online.target, and ceph.target (probably overkill) > * I added 'x-systemd.requires=<rbd map service>' to the > mount-point in /etc/fstab > > And when the system reboot, it'd complain about ordering > cycle and sometimes resulting in rescue mode. Because the > filesystem is 'xfs', I believe systemd-fstab-generator > classifies the mount-point as 'local-fs'. Is there a way > to force a 'remote-fs' reclassification? Or is there some > other way to get out of this ordering nightmare... Old > school 'S' and 'K' numbers are *so* simple; I'd trade > consistency for speed any day. > > Thanks for any suggestion or insight. > > -kc > BTW, I disable NetworkManager which, I know, kind of breaks > network-online.target. > > K.C. Wong > kcwong@xxxxxxxxxxx > 4096R/B8995EDE E527 CBE8 023E 79EA 8BBB 5C77 23A6 92E9 B899 5EDE > hkps://hkps.pool.sks-keyservers.net > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Jeff Ollie The majestik møøse is one of the mäni interesting furry animals in Sweden. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |