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https://issues.apache.org/jira/browse/HBASE-8836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13696109#comment-13696109
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Lars Hofhansl commented on HBASE-8836:
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Interesting. Could you post some numbers [~tychang]?
Skimmed the patch. A few high level comments:
* Is there a better way to detect write actions?
* Do you really want to tease apart a "multi" action and enqueue the parts
individually?
* We can do this with less code duplication I think.
> 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
> Assignee: Tianying Chang
> Fix For: 0.98.0, 0.95.2, 0.94.10
>
> Attachments: hbase-8836.patch
>
>
> 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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