From 09546b3d3184ec983db6cfdf02f53679570492d2 Mon Sep 17 00:00:00 2001
From: Liam Young <liam.young@canonical.com>
Date: Mon, 13 Oct 2014 09:56:02 +0000
Subject: [PATCH] Add sleep to stop corosync becoming wedged during restarts

---
 hooks/hooks.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/hooks/hooks.py b/hooks/hooks.py
index 7af963e..4dddba8 100755
--- a/hooks/hooks.py
+++ b/hooks/hooks.py
@@ -35,7 +35,6 @@ from charmhelpers.core.hookenv import (
 from charmhelpers.core.host import (
     service_stop,
     service_start,
-    service_restart,
     service_running,
     write_file,
     mkdir,
@@ -205,8 +204,11 @@ def upgrade_charm():
 def restart_corosync():
     if service_running("pacemaker"):
         service_stop("pacemaker")
-    service_restart("corosync")
+    service_stop("corosync")
+    # Corosync can become wedged if restarted too quickly. Need to
+    # replace sleep with some science
     time.sleep(5)
+    service_start("corosync")
     service_start("pacemaker")