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From "S.L" <simpleliving...@gmail.com>
Subject DataNode Timeout exceptions.
Date Wed, 27 May 2015 00:00:04 GMT
Hi All,

I am on Apache Yarn 2.3.0 and lately I have been seeing this exceptions
happening frequently.Can someone tell me the root cause of this issue.

I have set the the property in mapred-site.xml as follows , is there any
other property that I need to set also?

    <property>
      <name>mapreduce.task.timeout</name>
      <value>1800000</value>
      <description>
      The time out value for taks, I set this because the JVMs might be
busy in GC and this is causing timeout in Hadoop Tasks.
      </description>
    </property>



15/05/26 02:06:53 WARN hdfs.DFSClient: DFSOutputStream ResponseProcessor
exception  for block
BP-1751673171-112.123.123.123-1431824104307:blk_1073749395_8571
java.net.SocketTimeoutException: 65000 millis timeout while waiting for
channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/112.123.123.123:35398
remote=/112.123.123.123:50010]
at
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:164)
at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:161)
at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:131)
at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:118)
at java.io.FilterInputStream.read(FilterInputStream.java:83)
at java.io.FilterInputStream.read(FilterInputStream.java:83)
at
org.apache.hadoop.hdfs.protocolPB.PBHelper.vintPrefixed(PBHelper.java:1881)
at
org.apache.hadoop.hdfs.protocol.datatransfer.PipelineAck.readFields(PipelineAck.java:116)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer$ResponseProcessor.run(DFSOutputStream.java:726)
15/05/26 02:06:53 INFO mapreduce.JobSubmitter: Cleaning up the staging area
/tmp/hadoop-yarn/staging/df/.staging/job_1431824165463_0221
15/05/26 02:06:54 WARN security.UserGroupInformation:
PriviledgedActionException as:df (auth:SIMPLE) cause:java.io.IOException:
All datanodes 112.123.123.123:50010 are bad. Aborting...
15/05/26 02:06:54 WARN security.UserGroupInformation:
PriviledgedActionException as:df (auth:SIMPLE) cause:java.io.IOException:
All datanodes 112.123.123.123:50010 are bad. Aborting...
Exception in thread "main" java.io.IOException: All datanodes
112.123.123.123:50010 are bad. Aborting...
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery(DFSOutputStream.java:1023)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.processDatanodeError(DFSOutputStream.java:838)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:483)

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