Ted Yu created KAFKA-6531:
-----------------------------
Summary: SocketServerTest#closingChannelException fails sometimes
Key: KAFKA-6531
URL: https://issues.apache.org/jira/browse/KAFKA-6531
Project: Kafka
Issue Type: Test
Reporter: Ted Yu
>From
>https://builds.apache.org/job/kafka-trunk-jdk9/361/testReport/junit/kafka.network/SocketServerTest/closingChannelException/
> :
{code}
java.lang.AssertionError: Channels not removed
at kafka.utils.TestUtils$.fail(TestUtils.scala:355)
at kafka.utils.TestUtils$.waitUntilTrue(TestUtils.scala:865)
at
kafka.network.SocketServerTest.assertProcessorHealthy(SocketServerTest.scala:914)
at
kafka.network.SocketServerTest.$anonfun$closingChannelException$1(SocketServerTest.scala:763)
at
kafka.network.SocketServerTest.$anonfun$closingChannelException$1$adapted(SocketServerTest.scala:747)
{code}
Among the test output, I saw:
{code}
[2018-02-04 18:51:15,995] ERROR Processor 0 closed connection from
/127.0.0.1:48261 (kafka.network.SocketServerTest$$anon$5$$anon$1:73)
java.lang.IllegalStateException: There is already a connection for id
127.0.0.1:1-127.0.0.1:2-0
at
org.apache.kafka.common.network.Selector.ensureNotRegistered(Selector.java:260)
at org.apache.kafka.common.network.Selector.register(Selector.java:254)
at
kafka.network.SocketServerTest$TestableSelector.super$register(SocketServerTest.scala:1043)
at
kafka.network.SocketServerTest$TestableSelector.$anonfun$register$2(SocketServerTest.scala:1043)
at
scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at
kafka.network.SocketServerTest$TestableSelector.runOp(SocketServerTest.scala:1037)
at
kafka.network.SocketServerTest$TestableSelector.register(SocketServerTest.scala:1043)
at
kafka.network.Processor.configureNewConnections(SocketServer.scala:723)
at kafka.network.Processor.run(SocketServer.scala:532)
{code}
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