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Posted to reviews@ambari.apache.org by Andrew Onischuk <ao...@hortonworks.com> on 2017/08/31 10:05:41 UTC

Review Request 62012: Agent sometimes hangs during connection to server

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Review request for Ambari, Myroslav Papirkovskyy, Sid Wagle, and Vitalyi Brodetskyi.


Bugs: AMBARI-21861
    https://issues.apache.org/jira/browse/AMBARI-21861


Repository: ambari


Description
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At 5k we saw this a couple of times. Agent hangs during do_handshake while
establishing ssl connection.

    
    
    # ThreadID: 139752294471424
    File: "/usr/lib64/python2.6/threading.py", line 504, in __bootstrap
      self.__bootstrap_inner()
    File: "/usr/lib64/python2.6/threading.py", line 532, in __bootstrap_inner
      self.run()
    File: "/usr/lib/python2.6/site-packages/ambari_agent/HeartbeatThread.py", line 89, in run
      self.register()
    File: "/usr/lib/python2.6/site-packages/ambari_agent/HeartbeatThread.py", line 120, in register
      self.establish_connection()
    File: "/usr/lib/python2.6/site-packages/ambari_agent/HeartbeatThread.py", line 214, in establish_connection
      self.connection = security.establish_connection(connection_url)
    File: "/usr/lib/python2.6/site-packages/ambari_agent/security.py", line 114, in establish_connection
      conn.start()
    File: "/usr/lib/python2.6/site-packages/ambari_stomp/connect.py", line 46, in start
      self.transport.start()
    File: "/usr/lib/python2.6/site-packages/ambari_stomp/transport.py", line 109, in start
      self.attempt_connection()
    File: "/usr/lib/python2.6/site-packages/ambari_stomp/adapter/websocket.py", line 89, in attempt_connection
      self.ws.connect()
    File: "/usr/lib/python2.6/site-packages/ambari_ws4py/client/__init__.py", line 215, in connect
      self.sock.connect(self.bind_addr)
    File: "/usr/lib64/python2.6/ssl.py", line 295, in connect
      self.do_handshake()
    File: "/usr/lib64/python2.6/ssl.py", line 279, in do_handshake
      self._sslobj.do_handshake()


Diffs
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  ambari-agent/src/main/python/ambari_agent/HeartbeatThread.py b6e1aaf 
  ambari-common/src/main/python/ambari_ws4py/client/__init__.py 89598ab 


Diff: https://reviews.apache.org/r/62012/diff/1/


Testing
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mvn clean test


Thanks,

Andrew Onischuk