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From "Xiaoyu Yao (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-10371) MiniDFSCluster#restartDataNode does not always stop DN before start DN
Date Thu, 05 May 2016 16:39:13 GMT
Xiaoyu Yao created HDFS-10371:
---------------------------------

             Summary: 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}



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