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Date: Tue, 6 Nov 2012 23:22:13 +0000 (UTC)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HDFS-4048) Use ERROR instead of INFO for volume
 failure logs
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    [ https://issues.apache.org/jira/browse/HDFS-4048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13491943#comment-13491943 ] 

Hadoop QA commented on HDFS-4048:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12552338/HDFS-4048.patch.trunk.3
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.hdfs.server.blockmanagement.TestBlocksWithNotEnoughRacks

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/3457//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/3457//console

This message is automatically generated.
                
> 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, HDFS-4048.patch.trunk.3
>
>
> 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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