[jira] [Commented] (SAMZA-1304) Improve duplicate processors detection

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SAMZA-1304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16069386#comment-16069386 ] 

ASF GitHub Bot commented on SAMZA-1304:
---------------------------------------

GitHub user shanthoosh opened a pull request:

    https://github.com/apache/samza/pull/240

    SAMZA-1304: Handling duplicate stream processor registration.

    When a stream processor registers with same processorId as already existing
    processor in processor group, it's registration should fail.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/shanthoosh/samza standalone_duplicate_processor_fix

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/samza/pull/240.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #240
    
----
commit e29c70a0541ac47cd664986e11d78f972fee980b
Author: Shanthoosh Venkataraman <sv...@linkedin.com>
Date:   2017-06-27T23:26:21Z

    Handling duplicate stream processor registration.
    
    When a stream processor registers with same processorId as already existing
    processor in processor group, it's registration should fail.

----


> Improve duplicate processors detection
> --------------------------------------
>
>                 Key: SAMZA-1304
>                 URL: https://issues.apache.org/jira/browse/SAMZA-1304
>             Project: Samza
>          Issue Type: Bug
>            Reporter: Shanthoosh Venkataraman
>            Assignee: Shanthoosh Venkataraman
>            Priority: Minor
>             Fix For: 0.13.1
>
>
> In current implementation, duplicate processors are detected during write to the ZooKeeper. 
> Expensive JobModel generation and Zookeeper write could be avoided, if duplicate processorIds are checked for in StreamProcessor that is Leader.



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