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https://issues.apache.org/jira/browse/HBASE-18026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17034129#comment-17034129
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Anoop Sam John commented on HBASE-18026:
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Removed 2.0.0 from fix versions as it was reverted from 2.x branches then itself
> 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: 1.3.2
> Reporter: Vincent Poon
> Assignee: Vincent Poon
> Priority: Minor
> Fix For: 1.4.0, 1.2.6, 1.3.2, 1.1.11
>
> Attachments: HBASE-18026.addendum.patch,
> 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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