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https://issues.apache.org/jira/browse/HDFS-3555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13410315#comment-13410315
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Hudson commented on HDFS-3555:
------------------------------
Integrated in Hadoop-Mapreduce-trunk-Commit #2455 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/2455/])
HDFS-3555. idle client socket triggers DN ERROR log (should be INFO or
DEBUG). Contributed by Andy Isaacson. (harsh) (Revision 1359619)
Result = FAILURE
harsh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1359619
Files :
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockSender.java
> 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
> Components: data-node, hdfs client
> Affects Versions: 0.20.2
> Reporter: Jeff Lord
> Assignee: Andy Isaacson
> Fix For: 2.0.1-alpha
>
> Attachments: hdfs-3555-2.txt, hdfs-3555-3.txt, 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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