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https://issues.apache.org/jira/browse/HBASE-8836?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell resolved HBASE-8836.
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Assignee: (was: Tianying Chang)
Resolution: Abandoned
> Separate reader and writer thread pool in RegionServer, so that write
> throughput will not be impacted when the read load is very high
> -------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-8836
> URL: https://issues.apache.org/jira/browse/HBASE-8836
> Project: HBase
> Issue Type: New Feature
> Components: Performance, regionserver
> Affects Versions: 0.94.8
> Reporter: Tianying Chang
> Priority: Major
> Attachments: HBase-8836-QosAnotation.patch,
> Hbase-8836-perfNumber.pdf, hbase-8836.patch, threadPool-write-NoWAL.png,
> threadPool-write-WithWAL.png
>
>
> We found that when the read load on a specific RS is high, the write
> throughput also get impacted dramatically, and even cause write data loss
> sometimes. We want to prioritize the write by putting them in a separate
> queue from the read request, so that slower read will not make fast write
> wait nu-necessarily long.
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