[jira] [Work logged] (GOBBLIN-1352) Ensure Helix workflows are cleaned up on cluster start up in centralized mode

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

     [ https://issues.apache.org/jira/browse/GOBBLIN-1352?focusedWorklogId=532152&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-532152 ]

ASF GitHub Bot logged work on GOBBLIN-1352:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 06/Jan/21 21:50
            Start Date: 06/Jan/21 21:50
    Worklog Time Spent: 10m 
      Work Description: sv2000 opened a new pull request #3191:
URL: https://github.com/apache/incubator-gobblin/pull/3191


   Dear Gobblin maintainers,
   
   Please accept this PR. I understand that it will not be reviewed until I have checked off all the steps below!
   
   
   ### JIRA
   - [x] My PR addresses the following [Gobblin JIRA](https://issues.apache.org/jira/browse/GOBBLIN/) issues and references them in the PR title. For example, "[GOBBLIN-XXX] My Gobblin PR"
       - https://issues.apache.org/jira/browse/GOBBLIN-1352
   
   
   ### Description
   - [x] Here are some details about my PR, including screenshots (if applicable):
   As part of the changes introduced in GOBBLIN-1319, the Helix workflow names were modified to include a special prefix. However, this prefix is intended for use in distributed mode. As a consequence of this change, the workflows are no longer being cleaned up on cluster start up leading to a leak in Znodes. Further, since the workflows are left in the START state, the Yarn autoscaling manager requests more containers than needed.
   
   
   
   ### Tests
   - [x] My PR adds the following unit tests __OR__ does not need testing for this extremely good reason:
   Added unit test.
   
   ### Commits
   - [x] My commits all reference JIRA issues in their subject lines, and I have squashed multiple commits if they address the same issue. In addition, my commits follow the guidelines from "[How to write a good git commit message](http://chris.beams.io/posts/git-commit/)":
       1. Subject is separated from body by a blank line
       2. Subject is limited to 50 characters
       3. Subject does not end with a period
       4. Subject uses the imperative mood ("add", not "adding")
       5. Body wraps at 72 characters
       6. Body explains "what" and "why", not "how"
   
   


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Issue Time Tracking
-------------------

            Worklog Id:     (was: 532152)
    Remaining Estimate: 0h
            Time Spent: 10m

> Ensure Helix workflows are cleaned up on cluster start up in centralized mode
> -----------------------------------------------------------------------------
>
>                 Key: GOBBLIN-1352
>                 URL: https://issues.apache.org/jira/browse/GOBBLIN-1352
>             Project: Apache Gobblin
>          Issue Type: Bug
>          Components: gobblin-cluster
>    Affects Versions: 0.16.0
>            Reporter: Sudarshan Vasudevan
>            Assignee: Hung Tran
>            Priority: Major
>             Fix For: 0.16.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> As part of the changes introduced in GOBBLIN-1319, the Helix workflow names were modified to include a special prefix. However, this prefix is intended for use in distributed mode. As a consequence of this change, the workflows are no longer being cleaned up on cluster start up leading to a leak in Znodes. Further, since the workflows are left in the START state, the Yarn autoscaling manager requests more containers than needed.
>  



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