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https://issues.apache.org/jira/browse/CASSANDRA-18338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17712385#comment-17712385
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Andres de la Peña commented on CASSANDRA-18338:
-----------------------------------------------
The failure can be reproduced on CircleCI with:
{code}
.circleci/generate.sh -p \
-e
REPEATED_JVM_DTESTS=org.apache.cassandra.distributed.test.ByteBuddyExamples#countTest
\
-e REPEATED_JVM_DTESTS_COUNT=10000
{code}
*
https://app.circleci.com/pipelines/github/adelapena/cassandra/2816/workflows/8f6cff1c-e36b-4a67-a608-0baf72c6348a
*
https://app.circleci.com/pipelines/github/adelapena/cassandra/2816/workflows/b59962c9-4fc4-45bc-b1dd-727c7d4c2986
Flakiness on CircleCI according to those runs seems to be 0.015%, so very
unlikely to fail. That contrasts with the observed flakiness on Jenkins, which
is between 14% and 44%, depending on the run.
> Fix flaky test:
> org.apache.cassandra.distributed.test.ByteBuddyExamplesTest.countTest
> -------------------------------------------------------------------------------------
>
> Key: CASSANDRA-18338
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18338
> Project: Cassandra
> Issue Type: Bug
> Components: CI, Test/unit
> Reporter: maxwellguo
> Priority: Normal
> Fix For: 4.1.x, 5.x
>
>
> jdk8 and jdk11 all faild at some time, jdk8 failed once, and jdk11 failed
> twice.
> for jdk 11:
> org.apache.cassandra.distributed.test.ByteBuddyExamplesTest.countTest-.jdk11
> (from org.apache.cassandra.distributed.test.ByteBuddyExamplesTest-.jdk11)
> Error Message
> expected:<1> but was:<2>
> Stacktrace
> junit.framework.AssertionFailedError: expected:<1> but was:<2>
> at
> org.apache.cassandra.distributed.test.ByteBuddyExamplesTest.lambda$countTest$81c80a4a$1(ByteBuddyExamplesTest.java:93)
> at org.apache.cassandra.concurrent.FutureTask$1.call(FutureTask.java:96)
> at org.apache.cassandra.concurrent.FutureTask.call(FutureTask.java:61)
> at org.apache.cassandra.concurrent.FutureTask.run(FutureTask.java:71)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.base/java.lang.Thread.run(Thread.java:829)
> for jdk 8:
> Error Message
> expected:<1> but was:<4>
> Stacktrace
> junit.framework.AssertionFailedError: expected:<1> but was:<4>
> at
> org.apache.cassandra.distributed.test.ByteBuddyExamplesTest.lambda$countTest$81c80a4a$1(ByteBuddyExamplesTest.java:93)
> at org.apache.cassandra.concurrent.FutureTask$1.call(FutureTask.java:96)
> at org.apache.cassandra.concurrent.FutureTask.call(FutureTask.java:61)
> at org.apache.cassandra.concurrent.FutureTask.run(FutureTask.java:71)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.lang.Thread.run(Thread.java:750)
> https://ci-cassandra.apache.org/job/Cassandra-4.1/286/testReport/org.apache.cassandra.distributed.test/ByteBuddyExamplesTest/countTest_2/
> https://ci-cassandra.apache.org/job/Cassandra-trunk/1489/testReport/org.apache.cassandra.distributed.test/ByteBuddyExamplesTest/countTest__jdk11/
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