Andres de la Peña created CASSANDRA-18944:
---------------------------------------------
Summary: Test failure:
org.apache.cassandra.simulator.test.ShortPaxosSimulationTest.simulationTest
Key: CASSANDRA-18944
URL: https://issues.apache.org/jira/browse/CASSANDRA-18944
Project: Cassandra
Issue Type: Bug
Components: Test/unit
Reporter: Andres de la Peña
The simulator test
{{org.apache.cassandra.simulator.test.ShortPaxosSimulationTest#simulationTest}}
is flaky on 5.0 and trunk:
*
https://app.circleci.com/pipelines/github/mike-tr-adamson/cassandra/332/workflows/946e28f4-2dec-4384-ac38-de011093f6c6/jobs/25735/tests
*
https://app.circleci.com/pipelines/github/adelapena/cassandra/3253/workflows/e48b49e9-cf36-412a-a811-d813031e6f01/jobs/83735/tests
*
https://app.circleci.com/pipelines/github/adelapena/cassandra/3254/workflows/69f451ef-fb39-48e4-b1d1-40ee4141b0c1/jobs/83739/tests
{code}
org.apache.cassandra.simulator.SimulationException: Failed on seed
0xb01206bb3b021127
Caused by: java.lang.ClassCastException: class
org.apache.cassandra.net.NoPayload cannot be cast to class
org.apache.cassandra.gms.GossipShutdown (org.apache.cassandra.net.NoPayload and
org.apache.cassandra.gms.GossipShutdown are in unnamed module of loader
org.apache.cassandra.distributed.shared.InstanceClassLoader @68801feb)
at
org.apache.cassandra.gms.GossipShutdown$Serializer.serialize(GossipShutdown.java:41)
at
org.apache.cassandra.net.Message$Serializer.serialize(Message.java:722)
at
org.apache.cassandra.distributed.impl.Instance.serializeMessage(Instance.java:427)
at
org.apache.cassandra.distributed.impl.Instance.lambda$registerOutboundFilter$5(Instance.java:370)
at
org.apache.cassandra.net.OutboundSink$Filtered.accept(OutboundSink.java:54)
at org.apache.cassandra.net.OutboundSink.accept(OutboundSink.java:70)
at
org.apache.cassandra.net.MessagingService.send(MessagingService.java:449)
at
org.apache.cassandra.net.MessagingService.send(MessagingService.java:419)
at
org.apache.cassandra.gms.Gossiper.unsafeSendShutdown(Gossiper.java:2634)
at
org.apache.cassandra.simulator.cluster.OnInstanceSendShutdown.lambda$invokableSendShutdown$1(OnInstanceSendShutdown.java:48)
at org.apache.cassandra.concurrent.FutureTask$1.call(FutureTask.java:96)
at org.apache.cassandra.concurrent.FutureTask.call(FutureTask.java:61)
at org.apache.cassandra.concurrent.FutureTask.run(FutureTask.java:71)
at org.apache.cassandra.concurrent.FutureTask$1.call(FutureTask.java:96)
at
org.apache.cassandra.concurrent.SyncFutureTask$1.call(SyncFutureTask.java:46)
at
org.apache.cassandra.concurrent.SyncFutureTask.run(SyncFutureTask.java:68)
at
org.apache.cassandra.simulator.systems.InterceptingExecutor$AbstractSingleThreadedExecutorPlus.lambda$new$0(InterceptingExecutor.java:584)
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:829)
{code}
The test failure can easily be reproduced on CircleCI with:
{code}
.circleci/generate.sh -sp \
-e
REPEATED_SIMULATOR_DTESTS=org.apache.cassandra.simulator.test.ShortPaxosSimulationTest
\
-e REPEATED_SIMULATOR_DTESTS_COUNT=100
{code}
Flakiness seems ~18%.
The test failure is not reported on Butler because simulator tests are not run
by Jenkins.
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