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Posted to common-dev@hadoop.apache.org by "Chris Douglas (JIRA)" <ji...@apache.org> on 2009/03/18 02:57:50 UTC

[jira] Commented: (HADOOP-5196) avoiding unnecessary byte[] allocation in SequenceFile.CompressedBytes and SequenceFile.UncompressedBytes

    [ https://issues.apache.org/jira/browse/HADOOP-5196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12682874#action_12682874 ] 

Chris Douglas commented on HADOOP-5196:
---------------------------------------

+1

> avoiding unnecessary byte[] allocation in SequenceFile.CompressedBytes and SequenceFile.UncompressedBytes
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-5196
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5196
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: io
>    Affects Versions: 0.21.0
>            Reporter: Hong Tang
>            Assignee: Hong Tang
>            Priority: Minor
>             Fix For: 0.21.0
>
>         Attachments: HADOOP-5196-trunk.patch
>
>
> SequenceFile.CompressedBytes and SequenceFile.UncompressedBytes are used by the SequenceFile's raw bytes reading/writing API. The current implementation does not reuse the internal byte[] and causes unnecessary buffer allocation and initializaiton (zeroing the buffer).

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