On Mon, Mar 12, 2018 at 04:31:46PM +0100, Klaus Wenninger wrote:
> Nope. Whenever the cluster is completely down...
> Otherwise nodes would come up - if not seeing each other -
> happily with both starting all services because they don't
> know what already had been running on the other node.
> Technically it wouldn't even be possible to remember that
> they've seen once as Corosync doesn't have "non-volatile-storage"
> apart from the config-file.
Interesting, I have the following config in a test cluster:
nodelist {
node {
ring0_addr: sid1
nodeid: 1
}
node {
ring0_addr: sid2
nodeid: 2
}
}
quorum {
# Enable and configure quorum subsystem (default: off)
# see also corosync.conf.5 and votequorum.5
provider: corosync_votequorum
expected_votes: 1
two_node: 1
}
And the behaviour when both nodes are down seems to be:
1. One node up
2. Fence other node
3. Start services
Mar 12 18:15:01 sid1 crmd[555]: notice: Connecting to cluster infrastructure:
corosync
Mar 12 18:15:01 sid1 crmd[555]: notice: Quorum acquired
Mar 12 18:15:01 sid1 crmd[555]: notice: Node sid1 state is now member
Mar 12 18:15:01 sid1 crmd[555]: notice: State transition S_STARTING ->
S_PENDING
Mar 12 18:15:23 sid1 crmd[555]: warning: Input I_DC_TIMEOUT received in state
S_PENDING from crm_timer_popped
Mar 12 18:15:23 sid1 crmd[555]: notice: State transition S_ELECTION ->
S_INTEGRATION
Mar 12 18:15:23 sid1 crmd[555]: warning: Input I_ELECTION_DC received in state
S_INTEGRATION from do_election_check
Mar 12 18:15:23 sid1 crmd[555]: notice: Result of probe operation for
stonith-sbd on sid1: 7 (not running)
Mar 12 18:15:23 sid1 crmd[555]: notice: Result of probe operation for dlm on
sid1: 7 (not running)
Mar 12 18:15:23 sid1 crmd[555]: notice: Result of probe operation for
admin-ip on sid1: 7 (not running)
Mar 12 18:15:23 sid1 crmd[555]: notice: Result of probe operation for
clusterfs on sid1: 7 (not running)
Mar 12 18:15:57 sid1 stonith-ng[551]: notice: Operation 'reboot' [1454] (call
2 from crmd.555) for host 'sid2' with device 'stonith-sbd' returned: 0 (OK)
Mar 12 18:15:57 sid1 stonith-ng[551]: notice: Operation reboot of sid2 by
sid1 for [email protected]: OK
Mar 12 18:15:57 sid1 crmd[555]: notice: Node sid2 state is now lost
Mar 12 18:15:58 sid1 crmd[555]: notice: Result of start operation for dlm on
sid1: 0 (ok)
Mar 12 18:15:58 sid1 crmd[555]: notice: Result of start operation for
admin-ip on sid1: 0 (ok)
Mar 12 18:15:58 sid1 crmd[555]: notice: Result of start operation for
stonith-sbd on sid1: 0 (ok)
Mar 12 18:15:58 sid1 crmd[555]: notice: Result of start operation for
clusterfs on sid1: 0 (ok)
Mar 12 18:15:58 sid1 crmd[555]: notice: Transition 0 (Complete=18, Pending=0,
Fired=0, Skipped=0, Incomplete=0,
Source=/var/lib/pacemaker/pengine/pe-warn-32.bz2): Complete
Mar 12 18:15:58 sid1 crmd[555]: notice: State transition S_TRANSITION_ENGINE
-> S_IDLE
--
Valentin
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