报错信息以及截图如下：
calculation112.aggrx:50010:DataXceiver error processing WRITE_BLOCK operation src: /10.1.1.116:36274 dst: /10.1.1.112:50010
java.io.IOException: Premature EOF from inputStream
at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:203)
at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doReadFully(PacketReceiver.java:213)
at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doRead(PacketReceiver.java:134)
at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.receiveNextPacket(PacketReceiver.java:109)
at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receivePacket(BlockReceiver.java:501)
at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:901)
at org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:808)
at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:169)
at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:106)
at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:246)
at java.lang.Thread.run(Thread.java:748)
......
原因：文件操作超租期，也就是data stream操作过程中文件被删.
方案：
第一步骤：修改进程最大文件打开数
cat /etc/security/limits.conf | grep -v ^# * soft nofile 1000000 * hard nofile 1048576 * soft nproc 65536 * hard nproc unlimited * soft memlock unlimited * hard memlock unlimited * - nofile 1000000
第二步骤：（修改数据传输线程个数）
完成。
