[KAFKA-15333] Flaky build failure throwing Connect Exception: Could not connect to server....

• Type: Test
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: connect, unit tests
• Assignee: Unassigned
• Reporter: Philip Nee
• Created: 10/Aug/23 18:54
• Updated: 14/Feb/24 20:58

Description

We frequently observe flaky build failure with the following message.  The is from the most recent PR post 3.5.0:

 

> Task :generator:testClasses UP-TO-DATE
Unexpected exception thrown.
org.gradle.internal.remote.internal.MessageIOException: Could not read message from '/127.0.0.1:38354'.
	at org.gradle.internal.remote.internal.inet.SocketConnection.receive(SocketConnection.java:94)
	at org.gradle.internal.remote.internal.hub.MessageHub$ConnectionReceive.run(MessageHub.java:270)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
	at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:47)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.IllegalArgumentException
	at org.gradle.internal.remote.internal.hub.InterHubMessageSerializer$MessageReader.read(InterHubMessageSerializer.java:72)
	at org.gradle.internal.remote.internal.hub.InterHubMessageSerializer$MessageReader.read(InterHubMessageSerializer.java:52)
	at org.gradle.internal.remote.internal.inet.SocketConnection.receive(SocketConnection.java:81)
	... 6 more

> Task :streams:upgrade-system-tests-26:unitTest
org.gradle.internal.remote.internal.ConnectException: Could not connect to server [3156f144-9a89-4c47-91ad-88a8378ec726 port:37889, addresses:[/127.0.0.1]]. Tried addresses: [/127.0.0.1].
	at org.gradle.internal.remote.internal.inet.TcpOutgoingConnector.connect(TcpOutgoingConnector.java:67)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedClient.getConnection(MessageHubBackedClient.java:36)
	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:103)
	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:65)
	at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
	at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)
Caused by: java.net.ConnectException: Connection refused
	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:716)
	at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:122)
	at org.gradle.internal.remote.internal.inet.TcpOutgoingConnector.tryConnect(TcpOutgoingConnector.java:81)
	at org.gradle.internal.remote.internal.inet.TcpOutgoingConnector.connect(TcpOutgoingConnector.java:54)
	... 5 more 

Issue Links

• duplicates: KAFKA-15343 Fix MirrorConnectIntegrationTests causing ci build failures.