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From mantun <antunovic.mla...@gmail.com>
Subject HBase socket timeout exception
Date Fri, 16 Dec 2011 11:48:31 GMT
Hello,

I am using Cloudera cdh3u0 version of Hadoop/HBase and after period of time
I keep get this error message:

org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to contact
region server :60020 for region
,0b8d3f10cc190754b6340ab867964fddf8cba0ac,1323216645924.861b23df64ede777cd5c0afdbe275876.,
row '0b8d3f10cc190754b6340ab867964fddf8cba0ac', but failed after 10
attempts.
Exceptions:
java.io.IOException: java.net.SocketTimeoutException: Call to /:60020 failed
on socket timeout exception: java.net.SocketTimeoutException: 60000 millis
timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.8.239.29:20982
remote=/:60020]
java.io.IOException: java.net.SocketTimeoutException: Call to /:60020 failed
on socket timeout exception: java.net.SocketTimeoutException: 60000 millis
timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.8.239.29:48616
remote=/:60020]
java.io.IOException: java.net.SocketTimeoutException: Call to /:60020 failed
on socket timeout exception: java.net.SocketTimeoutException: 60000 millis
timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.8.239.29:48626
remote=/:60020]
java.io.IOException: java.net.SocketTimeoutException: Call to /:60020 failed
on socket timeout exception: java.net.SocketTimeoutException: 60000 millis
timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.8.239.29:48636
remote=/:60020]
java.io.IOException: java.net.SocketTimeoutException: Call to /:60020 failed
on socket timeout exception: java.net.SocketTimeoutException: 60000 millis
timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.8.239.29:48646
remote=/:60020]
java.io.IOException: java.net.SocketTimeoutException: Call to /:60020 failed
on socket timeout exception: java.net.SocketTimeoutException: 60000 millis
timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.8.239.29:48656
remote=/:60020]
java.io.IOException: java.net.SocketTimeoutException: Call to /:60020 failed
on socket timeout exception: java.net.SocketTimeoutException: 60000 millis
timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.8.239.29:38856
remote=/:60020]
java.io.IOException: java.net.SocketTimeoutException: Call to /:60020 failed
on socket timeout exception: java.net.SocketTimeoutException: 60000 millis
timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.8.239.29:38866
remote=/:60020]
java.io.IOException: java.net.SocketTimeoutException: Call to /:60020 failed
on socket timeout exception: java.net.SocketTimeoutException: 60000 millis
timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.8.239.29:38877
remote=/:60020]
java.io.IOException: java.net.SocketTimeoutException: Call to /:60020 failed
on socket timeout exception: java.net.SocketTimeoutException: 60000 millis
timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.8.239.29:38887
remote=/:60020]

	at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getRegionServerWithRetries(HConnectionManager.java:1008)
	at
org.apache.hadoop.hbase.client.HTable$ClientScanner.next(HTable.java:1100)
	at
org.apache.hadoop.hbase.mapreduce.TableRecordReaderImpl.nextKeyValue(TableRecordReaderImpl.java:143)
	at
org.apache.hadoop.hbase.mapreduce.TableRecordReader.nextKeyValue(TableRecordReader.java:142)
	at
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:455)
	at org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
	at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)
	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:646)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:322)
	at org.apache.hadoop.mapred.Child$4.run(Child.java:268)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:396)
	at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1115)
	at org.apache.hadoop.mapred.Child.main(Child.java:262)


Table used contains 115M records and job is reading about 400K of data and
writing back to table. If anyone is able to help I will really appreciate.

Thank You,
Mladen

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