[jira] [Created] (HDFS-6768) TestBlockRecovery should use ephemeral ports

[Arpit Agarwal (JIRA)]

Arpit Agarwal created HDFS-6768:
-----------------------------------

             Summary: TestBlockRecovery should use ephemeral ports
                 Key: HDFS-6768
                 URL: https://issues.apache.org/jira/browse/HDFS-6768
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: test
    Affects Versions: 2.5.0
            Reporter: Arpit Agarwal


TestBlockRecovery uses hard-coded port numbers making it susceptible to 'port 
in use' errors [as seen 
here|https://builds.apache.org/job/PreCommit-HDFS-Build/7484//testReport/org.apache.hadoop.hdfs.server.datanode/TestBlockRecovery/testRaceBetweenReplicaRecoveryAndFinalizeBlock/]

{code}
Error Message

Port in use: localhost:50070
Stacktrace

java.net.BindException: Port in use: localhost:50070
        at sun.nio.ch.Net.bind(Native Method)
        at 
sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:124)
        at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
        at 
org.mortbay.jetty.nio.SelectChannelConnector.open(SelectChannelConnector.java:216)
        at 
org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:853)
        at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:794)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer.start(NameNodeHttpServer.java:142)
{code}
        at 
org.apache.hadoop.hdfs.server.namenode.NameNode.startHttpServer(NameNode.java:697)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:587)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:756)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:740)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1425)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.createNameNode(MiniDFSCluster.java:1007)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:878)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:707)
        at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:378)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:359)
        at 
org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery.testRaceBetweenReplicaRecoveryAndFinalizeBlock(TestBlockRecovery.java:592)



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