[CASSANDRA-16358] Minor Flakiness in ProxyHandlerConnectionsTest#testExpireSomeFromBatch

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 4.0-rc1, 4.0
• Component/s: Test/unit
• Bug Category: Correctness - Test Failure
• Severity: Low
• Complexity: Normal
• Discovered By: Unit Test
• Platform: All
• Since Version: 4.0-alpha1

Source Control Link

https://github.com/apache/cassandra/commit/c0b58de334290590cb4d8d90751a6bd6c9139e33

Test and Documentation Plan

See PR

• Assignee: Brandon Williams
• Reporter: Caleb Rackliffe

Authors

Brandon Williams

Reviewers

Andres de la Peña, Benjamin Lerer, Ekaterina Dimitrova

• Created: 16/Dec/20 19:29
• Updated: 24/Feb/21 05:58
• Resolved: 18/Feb/21 23:20

Description

This seems only to be failing in ci-cassandra, but it fails across cdc, compression, and normal configurations there. The only failure recent enough to be retained is here:

https://ci-cassandra.apache.org/job/Cassandra-devbranch/268/testReport/org.apache.cassandra.net/ProxyHandlerConnectionsTest/testExpireSomeFromBatch_compression_2/

org.apache.cassandra.net.ProxyHandlerConnectionsTest.testExpireSomeFromBatch-compression (from org.apache.cassandra.net.ProxyHandlerConnectionsTest-compression)

Error Message

Expired: 8, Arrived: 10

Stacktrace

junit.framework.AssertionFailedError: Expired: 8, Arrived: 10
	at org.apache.cassandra.net.ProxyHandlerConnectionsTest.waitForCondition(ProxyHandlerConnectionsTest.java:285)
	at org.apache.cassandra.net.ProxyHandlerConnectionsTest.lambda$testExpireSomeFromBatch$23(ProxyHandlerConnectionsTest.java:210)
	at org.apache.cassandra.net.ProxyHandlerConnectionsTest.doTestManual(ProxyHandlerConnectionsTest.java:378)
	at org.apache.cassandra.net.ProxyHandlerConnectionsTest.testManual(ProxyHandlerConnectionsTest.java:337)
	at org.apache.cassandra.net.ProxyHandlerConnectionsTest.testExpireSomeFromBatch(ProxyHandlerConnectionsTest.java:169)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

Standard Output

DEBUG [main] 2020-12-15 20:36:43,018 InternalLoggerFactory.java:45 - Using SLF4J as the default logging framework
DEBUG [main] 2020-12-15 20:36:43,043 PlatformDependent0.java:417 - -Dio.netty.noUnsafe: false
DEBUG [main] 2020-12-15 20:36:43,044 PlatformDependent0.java:897 - Java version: 8
DEBUG [main] 2020-12-15 20:36:43,044 PlatformDependent0.java:130 - sun.misc.Unsafe.theUnsafe: available
DEBUG [main] 2020-12-15 20:36:43,045 PlatformDependent0.java:154 - sun.misc.Unsafe.copyMemory: available

...[truncated 394654 chars]...
ol$Initiate.maybeDecode(HandshakeProtocol.java:167)
	at org.apache.cassandra.net.InboundConnectionInitiator$Handler.initiate(InboundConnectionInitiator.java:242)
	at org.apache.cassandra.net.InboundConnectionInitiator$Handler.decode(InboundConnectionInitiator.java:235)
	at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:501)
	at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:440)
	... 29 common frames omitted

There are a number of historical failures listed here, but the runs that produced them have not been retained:

https://ci-cassandra.apache.org/job/Cassandra-trunk/207/testReport/junit/org.apache.cassandra.net/ProxyHandlerConnectionsTest/

Issue Links

• links to: CASSANDRA-16358