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From "Heng Chen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-12986) Compaction pressure based client pushback
Date Mon, 26 Oct 2015 04:17:27 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12986?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Heng Chen updated HBASE-12986:
------------------------------
    Attachment: HBASE-12986.patch

> Compaction pressure based client pushback
> -----------------------------------------
>
>                 Key: HBASE-12986
>                 URL: https://issues.apache.org/jira/browse/HBASE-12986
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>             Fix For: 2.0.0, 1.3.0
>
>         Attachments: HBASE-12986.patch
>
>
> HBASE-8329 recently introduced on all branches {{double RegionServerServices#getCompactionPressure()}},
which returns a value greater than or equal to 0.0, and any value greater than 1.0 means we
have exceeded the store file limit on some stores. It could be reasonable to send this value
along in server load statistics (clamping max at 1.0), and consider it as an additional term
in the ExponentialClientBackoffPolicy.



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