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From "yuxh (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-11525) "Address already in use" has no exact conflict information
Date Fri, 10 Mar 2017 04:45:38 GMT
yuxh created HDFS-11525:

             Summary: "Address already in use" has no exact conflict information
                 Key: HDFS-11525
                 URL: https://issues.apache.org/jira/browse/HDFS-11525
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode
    Affects Versions: 2.7.3
            Reporter: yuxh

when I found datanode didnot start successful, I checked log :
2017-03-10 09:36:08,455 FATAL org.apache.hadoop.hdfs.server.datanode.DataNode: Exception in
java.net.BindException: Address already in use
        at sun.nio.ch.Net.bind0(Native Method)
        at sun.nio.ch.Net.bind(Net.java:433)
        at sun.nio.ch.Net.bind(Net.java:425)
which doesn't show which port has been used. I have to try in another machine to find port
50075 is need to start up datanode.

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