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Posted to issues@nifi.apache.org by "Wouter de Vries (Jira)" <ji...@apache.org> on 2020/03/10 13:13:00 UTC

[jira] [Created] (NIFI-7241) Unable to remove port from a child ProcessGroup

Wouter de Vries created NIFI-7241:
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             Summary: Unable to remove port from a child ProcessGroup
                 Key: NIFI-7241
                 URL: https://issues.apache.org/jira/browse/NIFI-7241
             Project: Apache NiFi
          Issue Type: Bug
          Components: Flow Versioning
    Affects Versions: 1.11.2
            Reporter: Wouter de Vries
         Attachments: trace.log

Given the following scenario:
 * Output port 1 in process group A
 * Input port 2 in process group B
 * A connection between A and B
 * Process group C is versioned and contains A and B

Removing the connection as well as output port 1 and  then committing the version creates a flow version that cannot be upgraded to. (Try reverting to an older version, and back to this version). Throwing an IllegalStateException.

I believe this is caused by the order of updates in "StandardProcessGroup.java" where child groups (line 3781) are updated prior to the connections of the group itself (line 3986). This causes the output port to be removed before the connection from it is removed. I haven't tested this but probably removing the input port causes similar issues.

 



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