More banging on my prototype cluster, and ran into an odd problem.
Used to be, when I create an rbd device, then try to map it, it would initially fail,
saying I have to disable some features.
Then I just run the suggested disable line -- usually
rbd feature disable poolname/rbdname object-map fast-diff deep-flatten
and then I can map it fine.
but now after the latest cluster recreation, when I try to map, I just get
# rbd map testpool/zfs02
rbd: sysfs write failed
In some cases useful info is found in syslog - try "dmesg | tail".
rbd: map failed: (110) Connection timed out
and no errors in dmesg output
if I try to disable those features anyway, I get
librbd::Operations: one or more requested features are already disabled(22) Invalid
argument
nothing in /var/log/ceph/cephadm.log either
Any suggestions?
--
Philip Brown| Sr. Linux System Administrator | Medata, Inc.
5 Peters Canyon Rd Suite 250
Irvine CA 92606
Office 714.918.1310| Fax 714.918.1325
pbrown(a)medata.com|
www.medata.com