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From "Kanaka Kumar Avvaru (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9064) NN old UI (block_info_xml) not available in 2.7.x
Date Thu, 24 Sep 2015 13:20:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14906334#comment-14906334

Kanaka Kumar Avvaru commented on HDFS-9064:

I would like to correct my previous analysis with following observations.

1) I have observed {{block_info_xml.jsp}} is accessible with out SPNEGO authentication in
2.6.0 even in Secure mode ON. 

2) Alternatively URL like {{nnip:port/fsck?blockId=blk_xxxx}} (SPNEGO authentication is required)
also available inplace of {{block_info_xml.jsp}} from remote clients though some  information
like owner & permission details are not available in the response (alternatively one can
use webhdfs REST API for such details).

I think it is security breach proving {{block_info_xml}} and so it was removed. Let's get
confirmation from implementors of HDFS-6252 here.

[~wheat9], Can you give your opinion on this JIRA and also shall we add GETBLOCKINFO in webhdfs
for all the details provided by {{block_info_xml.jsp}} ?

> NN old UI (block_info_xml) not available in 2.7.x
> -------------------------------------------------
>                 Key: HDFS-9064
>                 URL: https://issues.apache.org/jira/browse/HDFS-9064
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: HDFS
>    Affects Versions: 2.7.0
>            Reporter: Rushabh S Shah
>            Assignee: Kanaka Kumar Avvaru
>            Priority: Critical
> In 2.6.x hadoop deploys, given a blockId it was very easy to find out the file name and
the locations of replicas (also whether they are corrupt or not).
> This was the REST call:
> {noformat}
>  http://<nnAddress>:<port#>/block_info_xml.jsp?blockId=xxx
> {noformat}
> But this was removed by HDFS-6252 in 2.7 builds.
> Creating this jira to restore that functionality.

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