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