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https://issues.apache.org/jira/browse/HBASE-15470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15198801#comment-15198801
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Hudson commented on HBASE-15470:
--------------------------------

FAILURE: Integrated in HBase-Trunk_matrix #782 (See 
[https://builds.apache.org/job/HBase-Trunk_matrix/782/])
HBASE-15470 Add a setting for Priority queue length (eclark: rev 
ac1a7a4a78966826d755a21faa007f9ae03f2cd0)
* hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/RpcExecutor.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/RpcScheduler.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/FifoRpcScheduler.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.java


> Add a setting for Priority queue length
> ---------------------------------------
>
>                 Key: HBASE-15470
>                 URL: https://issues.apache.org/jira/browse/HBASE-15470
>             Project: HBase
>          Issue Type: Improvement
>          Components: IPC/RPC, Region Assignment
>    Affects Versions: 1.2.0
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>             Fix For: 2.0.0, 1.3.0
>
>         Attachments: HBASE-15470.patch
>
>
> Meta can have very different request rates than any other region. We 
> shouldn't use the same call queue length.
> For example:
> If a normal request takes 100ms ( long scan or large get )
> but a call to meta is all in memory so it takes < 1ms
> So a call queue length of 100 represents multiple seconds of work for normal 
> requests, but less than a second for meta.



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