[ClusterLabs] Why Do Nodes Leave the Cluster?

[Eric Robinson]

The two servers 001db01a and 001db01b were up and responsive. Neither had been rebooted and neither were under heavy load. There's no indication in the logs of loss of network connectivity. Any ideas on why both nodes seem to think the other one is at fault?

(Yes, it's a 2-node cluster without quorum. A 3-node cluster is not an option at this time.)

Log from 001db01a:

Feb  5 08:01:02 001db01a corosync[1306]: [TOTEM ] A processor failed, forming new configuration.
Feb  5 08:01:03 001db01a corosync[1306]: [TOTEM ] A new membership (10.51.14.33:960) was formed. Members left: 2
Feb  5 08:01:03 001db01a corosync[1306]: [TOTEM ] Failed to receive the leave message. failed: 2
Feb  5 08:01:03 001db01a attrd[1525]:  notice: Node 001db01b state is now lost
Feb  5 08:01:03 001db01a attrd[1525]:  notice: Removing all 001db01b attributes for peer loss
Feb  5 08:01:03 001db01a cib[1522]:  notice: Node 001db01b state is now lost
Feb  5 08:01:03 001db01a cib[1522]:  notice: Purged 1 peer with id=2 and/or uname=001db01b from the membership cache
Feb  5 08:01:03 001db01a attrd[1525]:  notice: Purged 1 peer with id=2 and/or uname=001db01b from the membership cache
Feb  5 08:01:03 001db01a crmd[1527]: warning: No reason to expect node 2 to be down
Feb  5 08:01:03 001db01a stonith-ng[1523]:  notice: Node 001db01b state is now lost
Feb  5 08:01:03 001db01a crmd[1527]:  notice: Stonith/shutdown of 001db01b not matched
Feb  5 08:01:03 001db01a corosync[1306]: [QUORUM] Members[1]: 1
Feb  5 08:01:03 001db01a corosync[1306]: [MAIN  ] Completed service synchronization, ready to provide service.
Feb  5 08:01:03 001db01a stonith-ng[1523]:  notice: Purged 1 peer with id=2 and/or uname=001db01b from the membership cache
Feb  5 08:01:03 001db01a pacemakerd[1491]:  notice: Node 001db01b state is now lost
Feb  5 08:01:03 001db01a crmd[1527]:  notice: State transition S_IDLE -> S_POLICY_ENGINE
Feb  5 08:01:03 001db01a crmd[1527]:  notice: Node 001db01b state is now lost
Feb  5 08:01:03 001db01a crmd[1527]: warning: No reason to expect node 2 to be down
Feb  5 08:01:03 001db01a crmd[1527]:  notice: Stonith/shutdown of 001db01b not matched
Feb  5 08:01:03 001db01a pengine[1526]:  notice: On loss of CCM Quorum: Ignore

>From 001db01b:

Feb  5 08:01:03 001db01b corosync[1455]: [TOTEM ] A new membership (10.51.14.34:960) was formed. Members left: 1
Feb  5 08:01:03 001db01b crmd[1693]:  notice: Our peer on the DC (001db01a) is dead
Feb  5 08:01:03 001db01b stonith-ng[1689]:  notice: Node 001db01a state is now lost
Feb  5 08:01:03 001db01b corosync[1455]: [TOTEM ] Failed to receive the leave message. failed: 1
Feb  5 08:01:03 001db01b corosync[1455]: [QUORUM] Members[1]: 2
Feb  5 08:01:03 001db01b corosync[1455]: [MAIN  ] Completed service synchronization, ready to provide service.
Feb  5 08:01:03 001db01b stonith-ng[1689]:  notice: Purged 1 peer with id=1 and/or uname=001db01a from the membership cache
Feb  5 08:01:03 001db01b pacemakerd[1678]:  notice: Node 001db01a state is now lost
Feb  5 08:01:03 001db01b crmd[1693]:  notice: State transition S_NOT_DC -> S_ELECTION
Feb  5 08:01:03 001db01b crmd[1693]:  notice: Node 001db01a state is now lost
Feb  5 08:01:03 001db01b attrd[1691]:  notice: Node 001db01a state is now lost
Feb  5 08:01:03 001db01b attrd[1691]:  notice: Removing all 001db01a attributes for peer loss
Feb  5 08:01:03 001db01b attrd[1691]:  notice: Lost attribute writer 001db01a
Feb  5 08:01:03 001db01b attrd[1691]:  notice: Purged 1 peer with id=1 and/or uname=001db01a from the membership cache
Feb  5 08:01:03 001db01b crmd[1693]:  notice: State transition S_ELECTION -> S_INTEGRATION
Feb  5 08:01:03 001db01b cib[1688]:  notice: Node 001db01a state is now lost
Feb  5 08:01:03 001db01b cib[1688]:  notice: Purged 1 peer with id=1 and/or uname=001db01a from the membership cache
Feb  5 08:01:03 001db01b stonith-ng[1689]:  notice: [cib_diff_notify] Patch aborted: Application of an update diff failed (-206)
Feb  5 08:01:03 001db01b crmd[1693]: warning: Input I_ELECTION_DC received in state S_INTEGRATION from do_election_check
Feb  5 08:01:03 001db01b pengine[1692]:  notice: On loss of CCM Quorum: Ignore


-Eric



Disclaimer : This email and any files transmitted with it are confidential and intended solely for intended recipients. If you are not the named addressee you should not disseminate, distribute, copy or alter this email. Any views or opinions presented in this email are solely those of the author and might not represent those of Physician Select Management. Warning: Although Physician Select Management has taken reasonable precautions to ensure no viruses are present in this email, the company cannot accept responsibility for any loss or damage arising from the use of this email or attachments.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.clusterlabs.org/pipermail/users/attachments/20200205/7b5c5a3a/attachment.html>