格式化Namenode提示Call From n1/192.168.253.130 to s1:8485 failed on connection exception: java.net.Connec

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错误提示

Call From n1/192.168.253.130 to s1:8485 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
at org.apache.hadoop.hdfs.qjournal.client.QuorumException.create(QuorumException.java:81)
at org.apache.hadoop.hdfs.qjournal.client.QuorumCall.rethrowException(QuorumCall.java:223)
at org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.hasSomeData(QuorumJournalManager.java:232)
at org.apache.hadoop.hdfs.server.common.Storage.confirmFormat(Storage.java:900)
at org.apache.hadoop.hdfs.server.namenode.FSImage.confirmFormat(FSImage.java:184)
at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:987)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1429)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1554)
16/03/28 09:25:24 ERROR namenode.NameNode: Failed to start namenode.

刚开始以为是配置出问题,但是根本没有更改 hots或者iptables造成的。

解决方法是

使用命令:

查看 java 进程端口

netstat -lpten | grep java

然后将全部的java 进程 kill 掉

重新Namendoe。

搞定

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