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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-15470) Add a setting for Priority queue length
Date Wed, 16 Mar 2016 23:53:33 GMT

     [ https://issues.apache.org/jira/browse/HBASE-15470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Elliott Clark updated HBASE-15470:
----------------------------------
      Resolution: Fixed
    Hadoop Flags: Reviewed
          Status: Resolved  (was: Patch Available)

Pushed to master, branch-1, and branch-1.3.

Thanks

> 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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