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From "Brahma Reddy Battula (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11134) Fix bind exceptions in TestRenameWhileOpen and TestPendingInvalidateBlock
Date Wed, 16 Nov 2016 09:07:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15669894#comment-15669894

Brahma Reddy Battula commented on HDFS-11134:

Thanks [~vinayrpet] taking a look into this issue..
 *{{TestRenameWhileOpen}}:* Yes, No need to keep same port.I mentioned to remove the port
and update the comment which is misleading.

 *{{TestPendingInvalidateBlock}}:*  Currently Restart namenode is not provided with different
port ,because namenode port is a static configurations for client and datanodes which are
running but Datanodes' port  change will only affect the client's and operations which were
using old addresses.
Hence as of now, no need to change here.If the intermittent failure rate is very frequent
then we can try to find some other alternative.
For example, run only these kind of tests in non-parallel way.

[~linyiqun] we can change the defect title and update patch for TestRenameWhileOpen.

> Fix bind exceptions in TestRenameWhileOpen and TestPendingInvalidateBlock
> -------------------------------------------------------------------------
>                 Key: HDFS-11134
>                 URL: https://issues.apache.org/jira/browse/HDFS-11134
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Yiqun Lin
>            Assignee: Yiqun Lin
>         Attachments: HDFS-11134.001.patch, HDFS-11134.002.patch
> I found two bind exceptions causing the unit tests fails in history Jenkins buildings.
One is test {{TestRenameWhileOpen}}, the other one is {{TestPendingInvalidateBlock}}.
> Here are the stack infos of {{TestRenameWhileOpen}}(I can't find the stack infos of {{TestPendingInvalidateBlock}}
now since the time of that happened is too early, but I'm sure it has failed due to bind exception.)
> {code}
> java.net.BindException: Problem binding to [localhost:42155] 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:535)
> 	at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:919)
> 	at org.apache.hadoop.ipc.Server.<init>(Server.java:2667)
> 	at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:959)
> 	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server.<init>(ProtobufRpcEngine.java:367)
> 	at org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:342)
> 	at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:801)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.<init>(NameNodeRpcServer.java:434)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.createRpcServer(NameNode.java:796)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:723)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:937)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:916)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1633)
> 	at org.apache.hadoop.hdfs.MiniDFSCluster.createNameNode(MiniDFSCluster.java:1263)
> 	at org.apache.hadoop.hdfs.MiniDFSCluster.configureNameService(MiniDFSCluster.java:1032)
> 	at org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:907)
> 	at org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:839)
> 	at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:491)
> 	at org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:450)
> 	at org.apache.hadoop.hdfs.TestRenameWhileOpen.testWhileOpenRenameToNonExistentDirectory(TestRenameWhileOpen.java:325)
> {code}
> Here specifying the namenode port is not necessary, is similar to HDFS-11129. And I have
run this test many times in my local, it all passed. The same we shuld do for test {{TestPendingInvalidateBlock}}.

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