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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-1985) HDFS-1073: Cleanup in image transfer servlet
Date Tue, 24 May 2011 01:04:47 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1985?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Todd Lipcon resolved HDFS-1985.

      Resolution: Fixed
    Hadoop Flags: [Reviewed]

> HDFS-1073: Cleanup in image transfer servlet
> --------------------------------------------
>                 Key: HDFS-1985
>                 URL: https://issues.apache.org/jira/browse/HDFS-1985
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: name-node
>    Affects Versions: Edit log branch (HDFS-1073)
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: Edit log branch (HDFS-1073)
>         Attachments: hdfs-1985.txt
> The TransferFsImage class has grown several heads and is somewhat confusing to follow.
This JIRA is to refactor it a little bit.
> - the TransferFsImage class contains static methods to put/get image and edits files.
It's used by checkpointing nodes.  [the same static methods it has today]
> - some common code from call sites of TransferFsImage are moved into TransferFsImage
itself, so it presents a cleaner interface to checkpointers
> - the non-static parts of TransferFsImage are moved to an inner class of GetImageServlet
called GetImageParams, since they were only responsible for parameter parsing/validation.

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