The two_node and auto_tie_breaker options are incompatible as they
specify conflicting methods of determining the quorate half of a cluster
partition.
This patch detects this error in corosync.conf, issues a message and
disables two_node if auto_tie_breaker is present.
Signed-Off-By: Christine Caulfield <[email protected]>
diff --git a/exec/votequorum.c b/exec/votequorum.c
index 6caccaf..2f453b9 100644
--- a/exec/votequorum.c
+++ b/exec/votequorum.c
@@ -1318,6 +1318,14 @@ static char *votequorum_readconfig(int runtime)
}
+ /* two_node and auto_tie_breaker are not compatible as two_node uses
+ * a fence race to decide quorum whereas ATB decides based on node id
+ */
+ if (two_node && auto_tie_breaker != ATB_NONE) {
+ log_printf(LOGSYS_LEVEL_CRIT, "two_node and auto_tie_breaker are both specified but are not compatible");
+ log_printf(LOGSYS_LEVEL_CRIT, "two_node has been disabled, please fix your corosync.conf");
+ two_node = 0;
+ }
/*
* quorum device is not compatible with last_man_standing and auto_tie_breaker
* neither lms or atb can be set at runtime, so there is no need to check for
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