向HDFS上传文件时报错16/07/23 01:13:30 WARN hdfs.DFSClient: DataStreamer Exception: org.apache.hadoop.ipc.Rem

时间:2023-01-10 04:50:30
16/07/23 01:13:30 WARN hdfs.DFSClient: DataStreamer Exception: org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /test.txt could only be replicated to 0 nodes, instead of 1
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1639)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:736)
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcc

查找了一下原因始datanode没有找到,用jps检测,datanode已经启动了,原因可能是datanode没有关闭防火墙,

service iptables status 发现防火墙果然没有关闭

执行service iptables stop 关闭之后,再上传就成功了