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Posted to reviews@helix.apache.org by GitBox <gi...@apache.org> on 2020/10/15 20:08:53 UTC

[GitHub] [helix] NealSun96 opened a new issue #1469: Task Garbage Collection deletes jobs due to selective update phantom read

NealSun96 opened a new issue #1469:
URL: https://github.com/apache/helix/issues/1469


   ### Describe the bug
   Due to the way selective update is done, it's possible to read a WorkflowConfig containing more jobs in a DAG than the actual JobConfigs read. That causes Garbage Collection stage to remove the jobs from the DAG as well. 
   
   ### To Reproduce
   1. Add job 1; 
   2. finishes the "listing" operation during selective update; 
   3. add job 2 and update WorkflowConfig DAG;
   4. finishes the "updating" operation during selective update.
   This results in a WorkflowConfig containing a DAG of both job 1 and job 2, but only job 1 is read into the cache. 
   
   ### Expected behavior
   Task Garbage Collection stage should try not to delete jobs like those before a better solution is implemented. 
   


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[GitHub] [helix] alirezazamani closed issue #1469: Task Garbage Collection deletes jobs due to selective update phantom read

Posted by GitBox <gi...@apache.org>.
alirezazamani closed issue #1469:
URL: https://github.com/apache/helix/issues/1469


   


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