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Date: Mon, 26 Sep 2016 04:25:20 +0000 (UTC)
From: "binlijin (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HBASE-16703) Explore object pooling of
 SeekerState
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archived-at: Mon, 26 Sep 2016 04:25:22 -0000


    [ https://issues.apache.org/jira/browse/HBASE-16703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15522005#comment-15522005 ] 

binlijin commented on HBASE-16703:
----------------------------------

SeekerState is org.apache.hadoop.hbase.io.encoding.BufferedDataBlockEncoder.SeekerState.

> Explore object pooling of SeekerState
> -------------------------------------
>
>                 Key: HBASE-16703
>                 URL: https://issues.apache.org/jira/browse/HBASE-16703
>             Project: HBase
>          Issue Type: Task
>            Reporter: Andrew Purtell
>
> In read workloads 35% of the allocation pressure produced by servicing RPC requests comes from SeekerState.<init> of the DataBlockEncoder implementation currently in use, where we allocate two byte arrays of INITIAL_KEY_BUFFER_SIZE in length. There's an opportunity for object pooling of SeekerState here. Subsequent code checks if those byte arrays are sized sufficiently to handle incoming data to copy. The arrays will be resized if needed. 



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