yuxh created HDFS-11525:
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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 secureMain
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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