[jira] Commented: (HDFS-729) fsck option to list only corrupted files

["dhruba borthakur (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-729?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12769124#action_12769124 ] 

dhruba borthakur commented on HDFS-729:
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There are two existing options to handle corrupted files, one option moves the file to lost+found and the other option deletes the corrupted file. I would like to add another option "listCorruptedFiles" that will list the corrupted files if any. An alternative is to  running a "fsck -files" and then filter the output on the client to display only corrupted files; but on a  cluster with 20 million files, the total amount of data (one for every line of output) to be transferred to the client is huge and introduces lots of latency.

> fsck option to list only corrupted files
> ----------------------------------------
>
>                 Key: HDFS-729
>                 URL: https://issues.apache.org/jira/browse/HDFS-729
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>
> An option to fsck to list only corrupted files will be very helpful for frequent monitoring.

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