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From "Akira AJISAKA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5978) Create a tool to take fsimage and expose read-only WebHDFS API
Date Thu, 13 Mar 2014 08:02:43 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5978?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13932971#comment-13932971
] 

Akira AJISAKA commented on HDFS-5978:
-------------------------------------

[~wheat9], thank you for your comment.
I updated the patch to reflect the comment, and added {{FILESTATUS}} operation.
bq. I'm also unclear why {{StringEncoder}} is required.
It is required because the type of the json content is {{String}}.

> Create a tool to take fsimage and expose read-only WebHDFS API
> --------------------------------------------------------------
>
>                 Key: HDFS-5978
>                 URL: https://issues.apache.org/jira/browse/HDFS-5978
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: tools
>            Reporter: Akira AJISAKA
>            Assignee: Akira AJISAKA
>              Labels: newbie
>         Attachments: HDFS-5978.patch
>
>
> Suggested in HDFS-5975.
> Add an option to exposes the read-only version of WebHDFS API for OfflineImageViewer.
You can imagine it looks very similar to jhat.
> That way we can allow the operator to use the existing command-line tool, or even the
web UI to debug the fsimage. It also allows the operator to interactively browsing the file
system, figuring out what goes wrong.



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