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From "Rodrigo Schmidt (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1031) Enhance the webUi to list a few of the corrupted files in HDFS
Date Fri, 16 Apr 2010 22:05:28 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1031?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12858022#action_12858022
] 

Rodrigo Schmidt commented on HDFS-1031:
---------------------------------------

I'm sorry I'm a little late on this discussion, but I don't agree with Eli's comment on the
message when corruptFileCount == 0. The API nn.getCorruptFiles() is based on the list of blocks
that need replication and might not be up-to-date (HDFS-729). For instance, I think it returns
0 if the namenode is on safe mode. We had a similar discussion on HDFS-1032 and we decided
to go for the message André had before ("unable to locate any"-style). Maybe we should use
something in between "100% guaranteed it's safe" and "Please don't trust me".

What about "No missing blocks found at the moment. Please run fsck for a thorough health analysis."
?


> Enhance the webUi to list a few of the corrupted files in HDFS
> --------------------------------------------------------------
>
>                 Key: HDFS-1031
>                 URL: https://issues.apache.org/jira/browse/HDFS-1031
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: dhruba borthakur
>            Assignee: André Oriani
>         Attachments: hdfs-1031_aoriani.patch, hdfs-1031_aoriani_2.patch, hdfs-1031_aoriani_3.patch
>
>
> The existing webUI displays something like this:
> WARNING : There are about 12 missing blocks. Please check the log or run fsck. 
> It would be nice if we can display the filenames that have missing blocks. 

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