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From Shahnawaz Saifi <shahsa...@gmail.com>
Subject Task process exit with nonzero status of 255.
Date Thu, 07 Apr 2011 16:49:29 GMT
Hi,

While executing MR with 472G data, I am running into following error:

java.io.IOException: Task process exit with nonzero status of 255.
	at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:418)




2011-04-07 07:54:15,442 INFO org.apache.zookeeper.ClientCnxn: Opening socket
connection to server 10.40.99.22:2181
2011-04-07 07:54:15,442 INFO org.apache.zookeeper.ClientCnxn: Socket
connection established to 10.40.99.22:2181, initiating session
2011-04-07 07:54:15,443 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
for server 10.40.99.22:2181, unexpected error, closing socket connection and
attempting reconnect
java.io.IOException: Connection reset by peer
    at sun.nio.ch.FileDispatcher.read0(Native Method)
    at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21)
    at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:237)
    at sun.nio.ch.IOUtil.read(IOUtil.java:204)
    at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:236)
    at org.apache.zookeeper.ClientCnxn$SendThread.doIO(ClientCnxn.java:858)
    at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1130)
2011-04-07 07:54:15,545 FATAL
com.example.dataengine.aggregation.aggregationMR_HDFS:
*************************************************************
2011-04-07 07:54:15,545 FATAL
com.example.dataengine.aggregation.aggregationMR_HDFS:
org.apache.hadoop.hbase.ZooKeeperConnectionException:
org.apache.zookeeper.KeeperException$ConnectionLossException:
KeeperErrorCode = ConnectionLoss for /hbase
2011-04-07 07:54:15,546 FATAL
com.example.dataengine.aggregation.aggregationMR_HDFS:
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getZooKeeperWatcher(HConnectionManager.java:988)
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.setupZookeeperTrackers(HConnectionManager.java:301)
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.<init>(HConnectionManager.java:292)
org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnectionManager.java:155)
org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:167)
org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:145)
com.example.dataengine.aggregation.aggregationMR_HDFS$aggregationMapper.setup(aggregationMR_HDFS.java:324)
org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:142)
org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:621)
org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
org.apache.hadoop.mapred.Child.main(Child.java:170)

2011-04-07 07:54:15,546 FATAL
com.example.dataengine.aggregation.aggregationMR_HDFS:
*************************************************************


-- 
Thanks,
Shah

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