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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3555) idle client socket triggers DN ERROR log (should be INFO or DEBUG)
Date Fri, 22 Jun 2012 17:54:42 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399479#comment-13399479
] 

Hadoop QA commented on HDFS-3555:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12532986/hdfs-3555.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  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.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    -1 javadoc.  The javadoc tool appears to have generated 13 warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

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

                  org.apache.hadoop.hdfs.TestHFlush

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/2684//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/2684//console

This message is automatically generated.
                
> idle client socket triggers DN ERROR log (should be INFO or DEBUG)
> ------------------------------------------------------------------
>
>                 Key: HDFS-3555
>                 URL: https://issues.apache.org/jira/browse/HDFS-3555
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.20.2
>         Environment: Red Hat Enterprise Linux Server release 6.2 (Santiago)
>            Reporter: Jeff Lord
>            Assignee: Andy Isaacson
>         Attachments: hdfs-3555.patch
>
>
> Datanode service is logging java.net.SocketTimeoutException at ERROR level.
> This message indicates that the datanode is not able to send data to the client because
the client has stopped reading. This message is not really a cause for alarm and should be
INFO level.
> 2012-06-18 17:47:13 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode DatanodeRegistration(x.x.x.x:50010,
storageID=DS-196671195-10.10.120.67-50010-1334328338972, infoPort=50075, ipcPort=50020):DataXceiver
> java.net.SocketTimeoutException: 480000 millis timeout while waiting for channel to be
ready for write. ch : java.nio.channels.SocketChannel[connected local=/10.10.120.67:50010
remote=/10.10.120.67:59282]
> at org.apache.hadoop.net.SocketIOWithTimeout.waitForIO(SocketIOWithTimeout.java:246)
> at org.apache.hadoop.net.SocketOutputStream.waitForWritable(SocketOutputStream.java:159)
> at org.apache.hadoop.net.SocketOutputStream.transferToFully(SocketOutputStream.java:198)
> at org.apache.hadoop.hdfs.server.datanode.BlockSender.sendChunks(BlockSender.java:397)
> at org.apache.hadoop.hdfs.server.datanode.BlockSender.sendBlock(BlockSender.java:493)
> at org.apache.hadoop.hdfs.server.datanode.DataXceiver.readBlock(DataXceiver.java:267)
> at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:163)

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