xenserver: Restart HA daemon after force-reload-kmod.

Otherwise its heartbeats start failing after the reload and the XenServer
reboots after a minute or so.

Thanks to Justin Pettit for figuring out that this was HA-related.

Bug #5706.
Reported-by: Henrik Amren <henrik@nicira.com>

diff --git a/xenserver/etc_init.d_openvswitch b/xenserver/etc_init.d_openvswitch
index 8103900..534b81d 100755 (executable)
--- a/xenserver/etc_init.d_openvswitch
+++ b/xenserver/etc_init.d_openvswitch
@@ -81,6 +81,18 @@ start () {
     touch /var/lock/subsys/openvswitch
 }
 
+force_reload_kmod () {
+    start force-reload-kmod
+
+    # Restart the high-availability daemon if it is running.  Otherwise
+    # it loses its heartbeat and reboots the system after a few minutes.
+    if pidof xhad >/dev/null && test -e /etc/xensource/xhad.conf; then
+       PATH=$PATH:/opt/xensource/xha
+       action "Stopping HA daemon" ha_stop_daemon
+       action "Starting HA daemon" ha_start_daemon
+    fi
+}
+
 stop () {
     $ovs_ctl stop
     stop_daemon ovs-xapi-sync
@@ -114,7 +126,7 @@ case $1 in
         $ovs_ctl version
         ;;
     force-reload-kmod)
-        start force-reload-kmod
+        force_reload_kmod
         ;;
     help)
         printf "openvswitch [start|stop|restart|reload|force-reload|status|version]\n"