Thank you for the suggestion and gist. I'll give that a try. -kc > On Aug 22, 2016, at 11:53 AM, Jeffrey Ollie <jeff@xxxxxxxxxx> wrote: > > 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. K.C. Wong kcwong@xxxxxxxxxxx 4096R/B8995EDE E527 CBE8 023E 79EA 8BBB 5C77 23A6 92E9 B899 5EDE hkps://hkps.pool.sks-keyservers.net
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