[GitHub] [incubator-openwhisk-package-kafka] dubee opened a new pull request #343: Catch Doctor exceptions

[GitBox <gi...@apache.org>]

dubee opened a new pull request #343: Catch Doctor exceptions
URL: https://github.com/apache/incubator-openwhisk-package-kafka/pull/343
 
 
   An exception thrown when the Doctor is restarting a consumer will resulting in the Doctor will completely shutting down due to the exception not being caught. As a result, exceptions in the Doctor's run loop need to be handled properly. 
   
   Below is a stacktrace showing the described exception occuring:
   ```
   Exception in thread Thread-1:
   Traceback (most recent call last):
     File "/usr/local/lib/python2.7/threading.py", line 801, in __bootstrap_inner
       self.run()
     File "/KafkaFeedProvider/thedoctor.py", line 72, in run
       consumer.restart()
     File "/KafkaFeedProvider/consumer.py", line 119, in restart
       self.process = ConsumerProcess(self.trigger, self.params, self.sharedDictionary)
     File "/KafkaFeedProvider/consumer.py", line 182, in __init__
       self.database = Database()
     File "/KafkaFeedProvider/database.py", line 48, in __init__
       self.client.connect()
     File "/usr/local/lib/python2.7/site-packages/cloudant/client.py", line 117, in connect
       self.session_login(self._user, self._auth_token)
     File "/usr/local/lib/python2.7/site-packages/cloudant/client.py", line 173, in session_login
       headers={'Content-Type': 'application/x-www-form-urlencoded'}
     File "/usr/local/lib/python2.7/site-packages/requests/sessions.py", line 518, in post
       return self.request('POST', url, data=data, json=json, **kwargs)
     File "/usr/local/lib/python2.7/site-packages/cloudant/_common_util.py", line 310, in request
       method, url, timeout=self._timeout, **kwargs)
     File "/usr/local/lib/python2.7/site-packages/requests/sessions.py", line 475, in request
       resp = self.send(prep, **send_kwargs)
     File "/usr/local/lib/python2.7/site-packages/requests/sessions.py", line 585, in send
       r = adapter.send(request, **kwargs)
     File "/usr/local/lib/python2.7/site-packages/requests/adapters.py", line 467, in send
       raise ConnectionError(e, request=request)
   ConnectionError: HTTPSConnectionPool(host='OMITTED', port=443): Max retries exceeded with url: /_session (Caused by NewConnectionError('<requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f84d75789d0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',))
   ```

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services