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https://issues.apache.org/jira/browse/ZOOKEEPER-1441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16684312#comment-16684312
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Andor Molnar commented on ZOOKEEPER-1441:
-----------------------------------------
I might have found the issue:
QuorumUtil creates QuorumPeers in its constructor, but doesn't actually start
them resulting it creates NIOServerCnxnFactory, but doesn't start its threads.
It could be a bug in the factory that in the constructor of Accept/Select
threads it opens and registers selectors on the socket, but if the thread is
not running, closeSelector() method will not be called.
This is exactly what QuorumUtil is doing in tests: creates QuorumPeers without
starting them and in startAll() (which is always the call after the
constructor) shuts down them all and create new ones and starting them. In Java
11 we have to properly close (unregister) selectors in order to properly close
the socket.
I'm working on a patch to fix this.
> Some test cases are failing because Port bind issue.
> ----------------------------------------------------
>
> Key: ZOOKEEPER-1441
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1441
> Project: ZooKeeper
> Issue Type: Test
> Components: server, tests
> Reporter: kavita sharma
> Assignee: Andor Molnar
> Priority: Major
> Labels: flaky, flaky-test
>
> very frequently testcases are failing because of :
> java.net.BindException: Address already in use
> at sun.nio.ch.Net.bind(Native Method)
> at
> sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:126)
> at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
> at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:52)
> at
> org.apache.zookeeper.server.NIOServerCnxnFactory.configure(NIOServerCnxnFactory.java:111)
> at
> org.apache.zookeeper.server.ServerCnxnFactory.createFactory(ServerCnxnFactory.java:112)
> at
> org.apache.zookeeper.server.quorum.QuorumPeer.<init>(QuorumPeer.java:514)
> at
> org.apache.zookeeper.test.QuorumBase.startServers(QuorumBase.java:156)
> at org.apache.zookeeper.test.QuorumBase.setUp(QuorumBase.java:103)
> at org.apache.zookeeper.test.QuorumBase.setUp(QuorumBase.java:67)
> may be because of Port Assignment so please give me some suggestions if
> someone is also facing same problem.
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