Hello Everyone,

I know there's been some chatter about this before but I am seeing the errors 
below on just about every one of our nodes.  Is there a definitive reason on 
why these are occuring, is there something that we can do to prevent these?

2009-05-04 21:35:11,764 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: 
DatanodeRegistration(10.102.0.105:50010, 
storageID=DS-991582569-127.0.0.1-50010-1240886381606, infoPort=50075, 
ipcPort=50020):DataXceiver
java.io.EOFException: while trying to read 65557 bytes
        at 
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.readToBuf(BlockReceiver.java:264)
        at 
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.readNextPacket(BlockReceiver.java:308)
        at 
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receivePacket(BlockReceiver.java:372)
        at 
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:524)
        at 
org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:357)
        at 
org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:103)
        at java.lang.Thread.run(Thread.java:619)

Followed by:
2009-05-04 21:35:20,891 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: 
PacketResponder blk_-7056150840276493498_10885 1 Exception 
java.io.InterruptedIOException: Interruped while waiting for IO on channel 
java.nio.channels.Socke
tChannel[connected local=/10.102.0.105:37293 remote=/10.102.0.106:50010]. 59756 
millis timeout left.
        at 
org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.select(SocketIOWithTimeout.java:277)
        at 
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:155)
        at 
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:150)
        at 
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:123)
        at java.io.DataInputStream.readFully(DataInputStream.java:178)
        at java.io.DataInputStream.readLong(DataInputStream.java:399)
        at 
org.apache.hadoop.hdfs.server.datanode.BlockReceiver$PacketResponder.run(BlockReceiver.java:853)
        at java.lang.Thread.run(Thread.java:619)

Thanks,
Albert

Reply via email to