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http://issues.apache.org/jira/browse/HADOOP-101?page=comments#action_12371653 ] 

Hairong Kuang commented on HADOOP-101:
--------------------------------------

The dfsck is done at the client side and hence does not lock the file system. 
It has a potential inconsitency problem. What if a client deletes a directory 
when  tool is checking it?

Another concern is the performance. The tool needs to issue a RPC to the 
namenode for each dir/file in the system. Any benchmark?

> DFSck - fsck-like utility for checking DFS volumes
> --------------------------------------------------
>
>          Key: HADOOP-101
>          URL: http://issues.apache.org/jira/browse/HADOOP-101
>      Project: Hadoop
>         Type: New Feature
>   Components: dfs
>     Versions: 0.2
>     Reporter: Andrzej Bialecki 
>     Assignee: Andrzej Bialecki 
>  Attachments: DFSck.java
>
> This is a utility to check health status of a DFS volume, and collect some 
> additional statistics.

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