Provide informative error about mntr requirement (#15)

signalfx · Jan 20, 2022 · 0834baa · 0834baa
1 parent 7720d7a
commit 0834baa
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/zk-collectd.py b/zk-collectd.py
@@ -93,6 +93,9 @@ def _get_mntr_stats(self):
         if response == "This ZooKeeper instance is not currently serving requests\n":
             return {"zk_service_health": 0, "zk_version": "UNKNOWN"}
 
+        if response == "mntr is not executed because it is not in the whitelist.\n":
+            raise RuntimeError("Unable to monitor ZooKeeper instance without being able to execute 'mntr' 4lw command")
+
         for line in response.splitlines():
             try:
                 key, value = self._parse_line(line)