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https://issues.apache.org/jira/browse/AURORA-506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14025173#comment-14025173
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Mark Chu-Carroll commented on AURORA-506:
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I'm working on addressing this, and also some user complaints about how diffs
work at the same time.
I'm setting up a diff routine that doesn't use the shell diff at all. Instead,
it iterates over the fields in a JSON structure, looking for differences. The
comparison takes a parameter which specifies a list of fields that should not
be considered during the comparison.
> 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
> Assignee: Mark Chu-Carroll
>
> 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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