Resolved Bug 1569 - Unable to subscribe to Kafka topics

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

diff --git a/osm_mon/server/server.py b/osm_mon/server/server.py
index 1e3e7f8..c5f5cc2 100755 (executable)
--- a/osm_mon/server/server.py
+++ b/osm_mon/server/server.py
@@ -26,6 +26,7 @@ MON component in charge of CRUD operations for vim_accounts and alarms. It uses
 import asyncio
 import json
 import logging
+import time
 
 from osm_mon.core.config import Config
 from osm_mon.core.message_bus_client import MessageBusClient
@@ -48,34 +49,27 @@ class Server:
     def run(self):
         self.loop.run_until_complete(self.start())
 
-    async def start(self):
+    async def start(self, wait_time=5):
         topics = [
-            "vim_account",
             "alarm_request"
         ]
-        await self.msg_bus.aioread(topics, self._process_msg)
+        while True:
+            try:
+                await self.msg_bus.aioread(topics, self._process_msg)
+                break
+            except Exception as e:
+                # Failed to subscribe to kafka topic
+                log.exception("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 _process_msg(self, topic, key, values):
         log.info("Message arrived: %s", values)
         try:
-            if topic == "vim_account":
-                if key == "create" or key == "edit":
-                    if 'config' not in values:
-                        values['config'] = {}
-                    self.service.upsert_vim_account(values['_id'],
-                                                    values['name'],
-                                                    values['vim_type'],
-                                                    values['vim_url'],
-                                                    values['vim_user'],
-                                                    values['vim_password'],
-                                                    values['vim_tenant_name'],
-                                                    values['schema_version'],
-                                                    values['config'])
-
-                if key == "delete":
-                    self.service.delete_vim_account(values['_id'])
-
-            elif topic == "alarm_request":
+
+            if topic == "alarm_request":
                 if key == "create_alarm_request":
                     alarm_details = values['alarm_create_request']
                     cor_id = alarm_details['correlation_id']
@@ -88,9 +82,7 @@ class Server:
                             alarm_details['severity'].lower(),
                             alarm_details['statistic'].lower(),
                             alarm_details['metric_name'],
-                            alarm_details['vdu_name'],
-                            alarm_details['vnf_member_index'],
-                            alarm_details['ns_id']
+                            alarm_details['tags']
                         )
                         response = response_builder.generate_response('create_alarm_response',
                                                                       cor_id=cor_id,