From 06706bea9339e26d1a0ab395e9d42d391ee8c03c Mon Sep 17 00:00:00 2001
From: John Spray <john.spray@redhat.com>
Date: Sat, 23 Sep 2017 15:18:18 +0100
Subject: [PATCH] mgr/zabbix: fix div by zero

Fixes: http://tracker.ceph.com/issues/21518
Signed-off-by: John Spray <john.spray@redhat.com>
(cherry picked from commit 9c02738b4ea0303f5b3cbfc4748d6791007be834)
---
 src/pybind/mgr/zabbix/module.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/pybind/mgr/zabbix/module.py b/src/pybind/mgr/zabbix/module.py
index eb2eba11a1ffe..a7baac1ba6900 100644
--- a/src/pybind/mgr/zabbix/module.py
+++ b/src/pybind/mgr/zabbix/module.py
@@ -12,7 +12,10 @@ from mgr_module import MgrModule
 
 
 def avg(data):
-    return sum(data) / float(len(data))
+    if len(data):
+        return sum(data) / float(len(data))
+    else:
+        return 0
 
 
 class ZabbixSender(object):
-- 
2.39.5