config: add CTDB_PARTIALLY_ONLINE_INTERFACES to ctdb.sysconfig

With this option set to "yes", we don't become unhealthy
as long as at least one interface is still available.

metze

(This used to be ctdb commit d054eb33c6ae92560cddb40732e5dcf622591a3c)

2 files changed, 19 insertions, 0 deletions

diff --git a/ctdb/config/ctdb.sysconfig b/ctdb/config/ctdb.sysconfig
index b1ac164ce1d..a19dd0ee7cc 100644
--- a/ctdb/config/ctdb.sysconfig
+++ b/ctdb/config/ctdb.sysconfig
@@ -228,6 +228,16 @@ CTDB_RECOVERY_LOCK="/some/place/on/shared/storage"
 # CTDB_PER_IP_ROUTING_TABLE_ID_HIGH=250
 # CTDB_PER_IP_ROUTING_RULE_PREF=10000
 
+# Make offline interfaces not a reason for being UNHEALTHY.
+# The CTDB_PARTIALLY_ONLINE_INTERFACES option changes
+# the behavior of the 10.interface monitor event.
+# In some setups it's desired that interfaces without
+# an active link don't change the node to unhealthy.
+# ctdbd is just informed about the interface status
+# and "ctdb status" dislays the node as "PARTIALLYONLINE".
+#
+# CTDB_PARTIALLY_ONLINE_INTERFACES="yes"
+
 # where to log messages
 # the default is /var/log/log.ctdb
 # CTDB_LOGFILE=/var/log/log.ctdb
diff --git a/ctdb/config/events.d/10.interface b/ctdb/config/events.d/10.interface
index b9637edf4b5..806354921c1 100755
--- a/ctdb/config/events.d/10.interface
+++ b/ctdb/config/events.d/10.interface
@@ -227,6 +227,15 @@ case "$1" in
 	monitor_interfaces
 	ret=$?
 
+	test x"$ret" = x"2" && {
+		test x"$CTDB_PARTIALLY_ONLINE_INTERFACES" != x"yes" && {
+			exit 1;
+		}
+		# as long as we have one interface available don't become
+		# unhealthy
+		ret=0
+	}
+
 	test x"$ret" != x"0" && {
 		exit 1;
 	}