[jira] [Created] (AURORA-506) Tasks need to be sanitized before attempting a diff operation

["Maxim Khutornenko (JIRA)" <ji...@apache.org>]

Maxim Khutornenko created AURORA-506:
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             Summary: Tasks need to be sanitized before attempting a diff operation
                 Key: AURORA-506
                 URL: https://issues.apache.org/jira/browse/AURORA-506
             Project: Aurora
          Issue Type: Story
          Components: Client
            Reporter: Maxim Khutornenko


Irrelevant thrift TaskConfig fields should not produce a diff noise resulting in unnecessary instance updates. Couple of observed cases:
- TaskConfig field renaming triggers an instance update when scheduler and client are on different thrift schemas during the version upgrade period;
- Identity.user field diff prevents a suspended job update to be resumed by a different user as the update restarts from scratch.

To better protect against the problems above, the client api needs to have something like DiffSanitizer where both local and remote tasks would be brought to a common denominator before attempting a diff. 



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