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Lin Yiqun commented on HDFS-10371: ---------------------------------- I suggest that we should change the param {{expireOnNN}} from false to true in these two {{restartDataNode}}. So the dn will be stopped and restart. {code} /* * Restart a particular datanode, use newly assigned port */ public boolean restartDataNode(int i) throws IOException { return restartDataNode(i, false); } /* * Restart a particular datanode, on the same port if keepPort is true */ public synchronized boolean restartDataNode(int i, boolean keepPort) throws IOException { return restartDataNode(i, keepPort, false); } {code} > MiniDFSCluster#restartDataNode does not always stop DN before start DN > ---------------------------------------------------------------------- > > Key: HDFS-10371 > URL: https://issues.apache.org/jira/browse/HDFS-10371 > Project: Hadoop HDFS > Issue Type: Test > Components: test > Reporter: Xiaoyu Yao > > This could cause intermittent port binding problem if the keep the same port > option is chosen as evident in the recent > [Jenkins|https://builds.apache.org/job/PreCommit-HDFS-Build/15366/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_91.txt] > {code} > Tests run: 6, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 53.772 sec > <<< FAILURE! - in org.apache.hadoop.hdfs.TestDecommissionWithStriped > testDecommissionWithURBlockForSameBlockGroup(org.apache.hadoop.hdfs.TestDecommissionWithStriped) > Time elapsed: 6.946 sec <<< ERROR! > java.net.BindException: Problem binding to [localhost:52957] > 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$Listener.<init>(Server.java:793) > at org.apache.hadoop.ipc.Server.<init>(Server.java:2592) > at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:958) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server.<init>(ProtobufRpcEngine.java:563) > at > org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:538) > at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:800) > at > org.apache.hadoop.hdfs.server.datanode.DataNode.initIpcServer(DataNode.java:932) > at > org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:1297) > at > org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:479) > at > org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2584) > at > org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2472) > at > org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2519) > at > org.apache.hadoop.hdfs.MiniDFSCluster.restartDataNode(MiniDFSCluster.java:2242) > at > org.apache.hadoop.hdfs.TestDecommissionWithStriped.testDecommissionWithURBlockForSameBlockGroup(TestDecommissionWithStriped.java:254) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org