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https://issues.apache.org/jira/browse/HDFS-4048?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephen Chu updated HDFS-4048:
------------------------------

    Attachment: HDFS-4048.patch.trunk.2
                HDFS-4048.patch.branch-2.2

Attached HDFS-4048.patch.branch-2.2 and HDFS-4048.patch.trunk.2.

I changed the log level to WARN. I also changed the INFO log in 
FsVolumeList#checkDirs to WARN.
                
> Use ERROR instead of INFO for volume failure logs
> -------------------------------------------------
>
>                 Key: HDFS-4048
>                 URL: https://issues.apache.org/jira/browse/HDFS-4048
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 2.0.0-alpha
>            Reporter: Stephen Chu
>            Assignee: Stephen Chu
>             Fix For: 3.0.0, 2.0.3-alpha
>
>         Attachments: HDFS-4048.patch.branch-2, HDFS-4048.patch.branch-2.2, 
> HDFS-4048.patch.trunk, HDFS-4048.patch.trunk.2
>
>
> I misconfigured the permissions of the DataNode data directories (they were 
> owned by root, instead of hdfs).
> I wasn't aware of this misconfiguration until a few days later. I usually 
> search through the logs for WARN and ERROR but didn't find messages at these 
> levels that indicated volume failure.
> After more carefully reading the logs, I found:
> {code}
> 2012-10-01 13:07:10,440 INFO org.apache.hadoop.hdfs.server.common.Storage: 
> Cannot access storage directory /data/4/dfs/dn
> 2012-10-01 13:07:10,440 INFO org.apache.hadoop.hdfs.server.common.Storage: 
> Storage directory /data/4/dfs/dn does not exist.
> {code}
> I think we should bump the log level to ERROR. This will make the problem 
> more visible to users.

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