Got error, status message , ack with firstBadLink as
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今天在发布Hadoop作业时出现如下异常：
15/10/08 21:04:19 INFO hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as 192.168.1.114:50010
at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1334)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1237)
原因是由于centos7的防火墙引起与datanode无法通讯造成。
centos7 关闭防火墙 service firewalld stop
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