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https://issues.apache.org/jira/browse/GOBBLIN-1416?focusedWorklogId=569180&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-569180
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ASF GitHub Bot logged work on GOBBLIN-1416:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 19/Mar/21 23:07
            Start Date: 19/Mar/21 23:07
    Worklog Time Spent: 10m 
      Work Description: sv2000 opened a new pull request #3250:
URL: https://github.com/apache/gobblin/pull/3250


   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-1416
   
   
   ### Description
   - [x] Here are some details about my PR, including screenshots (if 
applicable):
   Invocation of Gobblin Helix task cancellation before underlying Gobblin 
tasks have been created or submitted to the task executor results in 
GobblinHelixTask#cancel() returning successfully, but without preventing future 
submission of Gobblin tasks to the executor. 
   
   
   ### 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: 569180)
    Remaining Estimate: 0h
            Time Spent: 10m

> Fix a race condition caused by Helix task cancellation being invoked before 
> Gobblin task creation
> -------------------------------------------------------------------------------------------------
>
>                 Key: GOBBLIN-1416
>                 URL: https://issues.apache.org/jira/browse/GOBBLIN-1416
>             Project: Apache Gobblin
>          Issue Type: Improvement
>          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
>
> Invocation of Gobblin Helix task cancellation before underlying Gobblin tasks 
> have been created or submitted to the task executor results in 
> GobblinHelixTask#cancel() returning successfully, but without preventing 
> future submission of Gobblin tasks to the executor. 



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