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https://issues.apache.org/jira/browse/PHOENIX-4089?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Taylor updated PHOENIX-4089:
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Attachment: PHOENIX-4089_4.x-HBase-0.98.patch
> Prevent index from getting out of sync with data table under high concurrency
> -----------------------------------------------------------------------------
>
> Key: PHOENIX-4089
> URL: https://issues.apache.org/jira/browse/PHOENIX-4089
> Project: Phoenix
> Issue Type: Bug
> Reporter: James Taylor
> Attachments: PHOENIX-4089_4.x-HBase-0.98.patch
>
>
> Under high concurrency, we're still seeing the index get out of sync with the
> data table. It seems that the particular case is when the same Put occurs
> with the same time stamp from different clients, based on the locking we do,
> Phoenix thinks a different Put was the last one than HBase does, leading to
> inconsistencies.
> The solution is to timestamp the cells on the server-side after the lock has
> been taken. The new concurrent unit test passes 50x with this in place, while
> it otherwise fails 1/10 of the time (or more on HBase 1.3).
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