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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18026) ProtobufUtil seems to do extra array copying
Date Fri, 12 May 2017 01:47:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16007508#comment-16007508
] 

Hudson commented on HBASE-18026:
--------------------------------

SUCCESS: Integrated in Jenkins build HBase-Trunk_matrix #2993 (See [https://builds.apache.org/job/HBase-Trunk_matrix/2993/])
HBASE-18026 ProtobufUtil seems to do extra array copying (apurtell: rev 58956316342b3eb90cb3d50ed74e4ad1914284f8)
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/protobuf/ProtobufUtil.java


> ProtobufUtil seems to do extra array copying
> --------------------------------------------
>
>                 Key: HBASE-18026
>                 URL: https://issues.apache.org/jira/browse/HBASE-18026
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0, 1.3.2
>            Reporter: Vincent Poon
>            Assignee: Vincent Poon
>            Priority: Minor
>             Fix For: 2.0.0, 1.4.0, 1.2.6, 1.3.2, 1.1.11
>
>         Attachments: HBASE-18026.branch-1.v1.patch, HBASE-18026.master.v1.patch
>
>
> In ProtobufUtil, the protobuf fields are copied into an array using toByteArray().  These
are then passed into the KeyValue constructor which does another copy.
> It seems like we can avoid a copy here by using HBaseZeroCopyByteString#zeroCopyGetBytes()
?



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