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https://issues.apache.org/jira/browse/HDFS-10730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15590665#comment-15590665
]
Brahma Reddy Battula commented on HDFS-10730:
---------------------------------------------
{{cluster.restartDataNode(dnprop);}}
> Fix some failed tests due to BindException
> ------------------------------------------
>
> Key: HDFS-10730
> URL: https://issues.apache.org/jira/browse/HDFS-10730
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Yiqun Lin
> Assignee: Yiqun Lin
> Attachments: HDFS-10730.001.patch
>
>
> In HDFS-10723, [~kihwal] suggested that
> {quote}
> it is not a good idea to hard-code or reuse the same port number in unit
> tests. Because the jenkins slave can run multiple jobs at the same time.
> {quote}
> Then I collected some tests which failed by this reason in recent jenkin
> buildings.
> Finally I found these two failed test
> {{TestFileChecksum.testStripedFileChecksumWithMissedDataBlocks1}}(https://builds.apache.org/job/PreCommit-HDFS-Build/16301/testReport/)
> and
> {{TestDecommissionWithStriped.testDecommissionWithURBlockForSameBlockGroup}}(https://builds.apache.org/job/PreCommit-HDFS-Build/16257/testReport/).
> The stack infos:
> {code}
> java.net.BindException: Problem binding to [localhost:57241]
> java.net.BindException: Address already in use; For more details see:
> http://wiki.apache.org/hadoop/BindException
> 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)
> at
> sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
> at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
> at org.apache.hadoop.ipc.Server.bind(Server.java:538)
> at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:811)
> at org.apache.hadoop.ipc.Server.<init>(Server.java:2611)
> at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:958)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server.<init>(ProtobufRpcEngine.java:562)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:537)
> at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:800)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.initIpcServer(DataNode.java:953)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:1361)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:488)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2658)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2546)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2593)
> at
> org.apache.hadoop.hdfs.MiniDFSCluster.restartDataNode(MiniDFSCluster.java:2259)
> at
> org.apache.hadoop.hdfs.MiniDFSCluster.restartDataNode(MiniDFSCluster.java:2298)
> at
> org.apache.hadoop.hdfs.MiniDFSCluster.restartDataNode(MiniDFSCluster.java:2278)
> at
> org.apache.hadoop.hdfs.TestFileChecksum.getFileChecksum(TestFileChecksum.java:482)
> at
> org.apache.hadoop.hdfs.TestFileChecksum.testStripedFileChecksumWithMissedDataBlocks1(TestFileChecksum.java:182)
> {code}
> {code}
> java.net.BindException: Problem binding to [localhost:54191]
> java.net.BindException: Address already in use; For more details see:
> http://wiki.apache.org/hadoop/BindException
> 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)
> at
> sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
> at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
> at org.apache.hadoop.ipc.Server.bind(Server.java:530)
> at org.apache.hadoop.ipc.Server.bind(Server.java:519)
> at
> org.apache.hadoop.hdfs.net.TcpPeerServer.<init>(TcpPeerServer.java:52)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.initDataXceiver(DataNode.java:1082)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:1348)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:488)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2658)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2546)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2593)
> at
> org.apache.hadoop.hdfs.MiniDFSCluster.restartDataNode(MiniDFSCluster.java:2259)
> at
> org.apache.hadoop.hdfs.TestDecommissionWithStriped.testDecommissionWithURBlockForSameBlockGroup(TestDecommissionWithStriped.java:255)
> {code}
> We can make a change to update the param value for {{keepPort}} from
> {code}
> cluster.restartDataNode(dnp, true);
> {code}
> to
> {code}
> cluster.restartDataNode(dnp, false);
> {code}
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