Resolved Bug 1569 - Unable to subscribe to Kafka topics

[osm/MON.git] / osm_mon / dashboarder / dashboarder.py

diff --git a/osm_mon/dashboarder/dashboarder.py b/osm_mon/dashboarder/dashboarder.py
index bed157a..a9c8a57 100644 (file)
--- a/osm_mon/dashboarder/dashboarder.py
+++ b/osm_mon/dashboarder/dashboarder.py
@@ -47,14 +47,19 @@ class Dashboarder:
     def run(self):
         self.loop.run_until_complete(self.start())
 
-    async def start(self):
+    async def start(self, wait_time=5):
         topics = ["users", "project"]
-        try:
-            await self.msg_bus.aioread(topics, self._user_msg)
-        except Exception as e:
-            # Failed to subscribe to kafka topics
-            log.error("Error when subscribing to topics %s", str(topics))
-            log.exception("Exception %s", str(e))
+        while True:
+            try:
+                await self.msg_bus.aioread(topics, self._user_msg)
+                break
+            except Exception as e:
+                # Failed to subscribe to kafka topics
+                log.error("Error when subscribing to topics %s", str(topics))
+                log.exception("Exception %s", str(e))
+                # Wait for some time for kaka to stabilize and then reattempt to subscribe again
+                time.sleep(wait_time)
+                log.info("Retrying to subscribe the kafka topic(s) %s", str(topics))
 
     async def _user_msg(self, topic, key, values):
         log.debug(