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From "Lars Hofhansl (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5164) Better HTable resource consumption in CoprocessorHost
Date Wed, 21 Mar 2012 19:21:40 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl updated HBASE-5164:
---------------------------------

    Fix Version/s:     (was: 0.94.0)
                   0.96.0
    
> Better HTable resource consumption in CoprocessorHost
> -----------------------------------------------------
>
>                 Key: HBASE-5164
>                 URL: https://issues.apache.org/jira/browse/HBASE-5164
>             Project: HBase
>          Issue Type: Sub-task
>          Components: coprocessors
>            Reporter: Lars Hofhansl
>            Priority: Minor
>             Fix For: 0.96.0
>
>
> HBASE-4805 allows for more control over HTable's resource consumption.
> This is currently not used by CoprocessorHost (even though it would even be more critical
to control this inside the RegionServer).
> It's not immediate obvious how to do that.
> Maybe CoprocessorHost should maintain a lazy ExecutorService and HConnection and reuse
both for all HTables retrieved via CoprocessorEnvironment.getTable(...).
> Not sure how critical this is, but I feel without this it is dangerous to use getTable,
as it would lead to all resource consumption problems we find in the client, but inside a
crucial part of the HBase servers.

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