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Posted to issues@nifi.apache.org by "Craig Knell (JIRA)" <ji...@apache.org> on 2019/01/17 02:54:00 UTC

[jira] [Created] (NIFI-5959) GetTCP does not reestablish connection

Craig Knell created NIFI-5959:
---------------------------------

             Summary: GetTCP does not reestablish connection
                 Key: NIFI-5959
                 URL: https://issues.apache.org/jira/browse/NIFI-5959
             Project: Apache NiFi
          Issue Type: Bug
          Components: Core Framework
    Affects Versions: 1.7.1, 1.8.0
         Environment: Ubuntu 18.4
            Reporter: Craig Knell


GetTCP does not reconnect when connection is broken.

Netstat reveals that the connection remains ESTABLISHED.

I understand that as GetTCP does not issue a heartbeat, GetTCP has no way on knowing that the connection has failed; as TCP does not know that the connection has failed.  It is still ESTABLISHED.

Workaround:

Manually restating GetTCP processor when remote site is up fixes the connection. 

Netstat reveals that FIN_WAIT1, then ESTABLISHED occurs, as expected.

Further Comments see:
 *  [https://community.hortonworks.com/questions/222842/nifi-gettcp-140-problem-wont-reconnect.html]
 * [https://community.hortonworks.com/questions/228934/gettcp-will-not-reconnect-nifi-180.html]

 



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