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https://issues.apache.org/jira/browse/HDDS-6931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17630085#comment-17630085
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Duong commented on HDDS-6931:
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I think pre-process validation should only perform logic on data which is not
supposed to change between pre-process and actual execution in
{{{}validateAndUpdateCache{}}}. Otherwise, that validation should be moved to
{{validateAndUpdateCache, }}and is done together with the real data change in a
proper lock scope to ensure consistency.
> Support for serialized pre-process validators
> ---------------------------------------------
>
> Key: HDDS-6931
> URL: https://issues.apache.org/jira/browse/HDDS-6931
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Ethan Rose
> Priority: Major
>
> Tasks like HDDS-6682 require checking DB state in pre-process validators,
> which run outside of the serialized OM request flow. They must do follow up
> checks in the request's validateAndUpdateCache to make sure the checks done
> in the validator are still correct. This Jira proposes a way to run the
> validators in the serialized part of request processing so that extra
> per-request handling is not necessary.
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