The exception happens on hadoop 2.2 version. The whole error message is shown below. Notice that the level is DEBUG. Not sure if such exception is serious.
=2014-06-05 14:39:31,135 DEBUG [pool-1-thread-1] (DFSInputStream.java:1095) - Error making BlockReader. Closing stale NioInetPeer(Socket[addr=/XX.XX.XX.XX,port=50010,localport=45112]) java.io.EOFException: Premature EOF: no length prefix available at org.apache.hadoop.hdfs.protocolPB.PBHelper.vintPrefixed(PBHelper.java:1492) at org.apache.hadoop.hdfs.RemoteBlockReader2.newBlockReader(RemoteBlockReader2.java:392) at org.apache.hadoop.hdfs.BlockReaderFactory.newBlockReader(BlockReaderFactory.java:131) at org.apache.hadoop.hdfs.DFSInputStream.getBlockReader(DFSInputStream.java:1088) at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:533) at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:749) at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:793) at java.io.DataInputStream.read(DataInputStream.java:149) at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:283) at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:325) at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177) at java.io.InputStreamReader.read(InputStreamReader.java:184) at java.io.BufferedReader.fill(BufferedReader.java:154) at java.io.BufferedReader.readLine(BufferedReader.java:317) at java.io.BufferedReader.readLine(BufferedReader.java:382)
