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https://issues.apache.org/jira/browse/PHOENIX-4130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16345581#comment-16345581
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Vincent Poon commented on PHOENIX-4130:
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Removed the noop check.
[~jamestaylor] Assuming this is a 4.14 feature, I put a check in
MetaDataEndpointImpl for if the client is older than 4.14 (in which case
PENDING_DISABLE is just treated as DISABLE by the client). However, I put it
as 4.13 right now because the tests fail otherwise, since MetadataProtocol is
currently set to 4.13. Whenever we update MetadataProtocol, we'll need to
update my check as well. Not sure what the procedure for that is.
> Avoid server retries for mutable indexes
> ----------------------------------------
>
> Key: PHOENIX-4130
> URL: https://issues.apache.org/jira/browse/PHOENIX-4130
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Lars Hofhansl
> Assignee: Vincent Poon
> Priority: Major
> Fix For: 4.14.0
>
> Attachments: PHOENIX-4130.v1.master.patch,
> PHOENIX-4130.v2.master.patch, PHOENIX-4130.v3.master.patch,
> PHOENIX-4130.v4.master.patch, PHOENIX-4130.v5.master.patch,
> PHOENIX-4130.v6.master.patch, PHOENIX-4130.v7.master.patch
>
>
> Had some discussions with [~jamestaylor], [~samarthjain], and [~vincentpoon],
> during which I suggested that we can possibly eliminate retry loops happening
> at the server that cause the handler threads to be stuck potentially for
> quite a while (at least multiple seconds to ride over common scenarios like
> splits).
> Instead we can do the retries at the Phoenix client that.
> So:
> # The index updates are not retried on the server. (retries = 0)
> # A failed index update would set the failed index timestamp but leave the
> index enabled.
> # Now the handler thread is done, it throws an appropriate exception back to
> the client.
> # The Phoenix client can now retry. When those retries fail the index is
> disabled (if the policy dictates that) and throw the exception back to its
> caller.
> So no more waiting is needed on the server, handler threads are freed
> immediately.
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