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https://issues.apache.org/jira/browse/HDFS-9512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15047972#comment-15047972
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Xiao Chen commented on HDFS-9512:
---------------------------------
Thanks [~brahmareddy] for the review and [~cnauroth] for the pointer, I'll
follow up on that JIRA.
> TestBackupNode flakes with port in use error on 50070
> -----------------------------------------------------
>
> Key: HDFS-9512
> URL: https://issues.apache.org/jira/browse/HDFS-9512
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Xiao Chen
> Assignee: Xiao Chen
> Attachments: HDFS-9512.01.patch
>
>
> HDFS-5948 fixed one of these port in use failures. But just met another one
> with the following stack trace:
> Error Message
> {noformat}
> Port in use: 0.0.0.0:50070
> {noformat}
> Stacktrace
> {noformat}
> java.net.BindException: Port in use: 0.0.0.0:50070
> at sun.nio.ch.Net.bind0(Native Method)
> at sun.nio.ch.Net.bind(Net.java:444)
> at sun.nio.ch.Net.bind(Net.java:436)
> at
> sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
> at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
> at
> org.mortbay.jetty.nio.SelectChannelConnector.open(SelectChannelConnector.java:216)
> at
> org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:942)
> at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:883)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer.start(NameNodeHttpServer.java:142)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.startHttpServer(NameNode.java:774)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:663)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:838)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:817)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1522)
> at
> org.apache.hadoop.hdfs.server.namenode.TestBackupNode.startBackupNodeWithIncorrectAuthentication(TestBackupNode.java:165)
> {noformat}
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