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From "Andy Isaacson (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HADOOP-8519) ERROR level log message should probably be changed to INFO
Date Thu, 21 Jun 2012 22:29:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8519?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andy Isaacson reassigned HADOOP-8519:
-------------------------------------

    Assignee: Andy Isaacson
    
> ERROR level log message should probably be changed to INFO
> ----------------------------------------------------------
>
>                 Key: HADOOP-8519
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8519
>             Project: Hadoop Common
>          Issue Type: Task
>    Affects Versions: 0.20.2
>         Environment: Red Hat Enterprise Linux Server release 6.2 (Santiago)
>            Reporter: Jeff Lord
>            Assignee: Andy Isaacson
>
> 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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