[CASSANDRA-18360] Test Failure: o.a.c.cql3.validation.operations.AlterTest#testDropListAndAddListWithSameName

• Type: Bug
• Status: In Progress
• Priority: Normal
• Resolution: Unresolved
• Fix Version/s: 5.x
• Component/s: Test/unit
• Bug Category: Correctness - Test Failure
• Severity: Normal
• Complexity: Normal
• Discovered By: User Report
• Platform: All

Test and Documentation Plan

See comments

• Assignee: Jon Meredith
• Reporter: Andres de la Peña

Authors

Jon Meredith

• Created: 24/Mar/23 11:03
• Updated: 19/Jan/24 23:04

Description

The unit test org.apache.cassandra.cql3.validation.operations.AlterTest#testDropListAndAddListWithSameName is flaky at least on trunk. Flakiness seems lesser than 1%.

While I haven't seen it on Jenkins yet, it can easily be reproduced on CircleCI with the multiplexer:

• https://app.circleci.com/pipelines/github/adelapena/cassandra/2731/workflows/58edc2f6-9a21-4d09-b783-b7fb15e1b320/jobs/32235
• https://app.circleci.com/pipelines/github/adelapena/cassandra/2731/workflows/58edc2f6-9a21-4d09-b783-b7fb15e1b320/jobs/32234
• https://app.circleci.com/pipelines/github/adelapena/cassandra/2731/workflows/739a95d3-8e42-4447-93dd-122fc16fdd7d/jobs/32233/tests

Those runs show two types of errors:

junit.framework.AssertionFailedError: Invalid value for row 0 column 1 (content of type text), expected <first test> but got <st test>

	at org.apache.cassandra.cql3.CQLTester.assertRows(CQLTester.java:1506)
	at org.apache.cassandra.cql3.validation.operations.AlterTest.testDropListAndAddListWithSameName(AlterTest.java:102)

and:

org.apache.cassandra.serializers.MarshalException: Invalid UTF-8 bytes 000000e0279515437f00
	at org.apache.cassandra.serializers.AbstractTextSerializer.deserialize(AbstractTextSerializer.java:46)
	at org.apache.cassandra.serializers.AbstractTextSerializer.deserialize(AbstractTextSerializer.java:29)
	at org.apache.cassandra.serializers.TypeSerializer.deserialize(TypeSerializer.java:37)
	at org.apache.cassandra.cql3.CQLTester.assertRows(CQLTester.java:1494)
	at org.apache.cassandra.cql3.validation.operations.AlterTest.testDropListAndAddListWithSameName(AlterTest.java:102)
	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)

The CircleCI config I used to reproduce the test failure can be generated with:

.circleci/generate.sh -p \
  -e REPEATED_UTESTS_COUNT=500 \
  -e REPEATED_UTESTS=org.apache.cassandra.cql3.validation.operations.AlterTest

Issue Links

• is caused by: CASSANDRA-18125 Improve memtable allocator accounting when updating AtomicBTreePartition