At cluster creation I'm seeing that the mons are taking a while time to form
quorum. It seems like I'm hitting a timeout of 60s somewhere. Am I missing a
config setting that would help paxos establish quorum sooner? When initializing
with the monmap I would have expected the mons to initialize very quickly.
The scenario is:
* Luminous RC 2
* The mons are initialized with a monmap
* Running in Kubernetes (Rook)
The symptoms are:
* When all three mons start in parallel, they appear to determine their
rank immediately. I assume this means they establish communication. A log
message is seen such as this in each of the mon logs:
* 2017-08-08 17:03:16.383599 7f8da7c85f40 0
mon.rook-ceph-mon1@-1(probing) e0 my rank is now 0 (was –1)
* Now paxos enters a loop that times out every two seconds and lasts about
60s, trying to probe the other monitors. During this wait, I am able to curl
the mon endpoints successfully.
* 2017-08-08 17:03:17.345877 7f02b779af40 10
mon.rook-ceph-mon0@1(probing) e0 probing other monitors
* 2017-08-08 17:03:19.346032 7f02ae568700 4
mon.rook-ceph-mon0@1(probing) e0 probe_timeout 0x55c93678bb00
* After about 60 seconds the probe succeeds and the mons start responding
* 2017-08-08 17:04:17.356928 7f02ae568700 10
mon.rook-ceph-mon0@1(probing) e0 probing other monitors
* 2017-08-08 17:04:17.366587 7f02a855c700 10
mon.rook-ceph-mon0@1(probing) e0 ms_verify_authorizer 10.0.0.254:6790/0 mon
protocol 2
The relevant settings in the config are:
mon initial members = rook-ceph-mon0 rook-ceph-mon1 rook-ceph-mon2
mon host = 10.0.0.24:6790,10.0.0.163:6790,10.0.0.139:6790
public addr = 10.0.0.24
cluster addr = 172.17.0.5
The full log for this mon at debug log level 20 can be found here:
https://gist.github.com/travisn/2c2641a6b80a7479b3b22accb41a5193
Any ideas?
Thanks,
Travis
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