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From "Yiqun Lin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10925) Cache symlinkString in INodeSymlink
Date Thu, 29 Sep 2016 11:34:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15532536#comment-15532536

Yiqun Lin commented on HDFS-10925:

Hi  [~daryn], could you please take a look for this if you have time? Thanks.

> Cache symlinkString in INodeSymlink
> -----------------------------------
>                 Key: HDFS-10925
>                 URL: https://issues.apache.org/jira/browse/HDFS-10925
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs
>            Reporter: Yiqun Lin
>            Assignee: Yiqun Lin
>            Priority: Minor
>         Attachments: HDFS-10925.001.patch
> In {{INodeSymlink}}'s construct method, it will transfer the input symlink string to
a byte array. If we want to invoke {{INodeSymlink#getSymlinkString}}, it will transfer the
byte array to the string again. Since we don't cache symlinkString  here, it will do the {{DFSUtil.bytes2String}}
method every time. It seems not efficient.

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