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https://issues.apache.org/jira/browse/CASSANDRA-20251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17927490#comment-17927490
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Dmitry Konstantinov edited comment on CASSANDRA-20251 at 2/16/25 11:56 AM:
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MR with a possible option to fix the issue:
[https://github.com/apache/cassandra/pull/3901] by checking what is the second
actual replica in the read plan and using this information to drop messages
between right nodes.
was (Author: dnk):
MR with a possible option to fix the issue:
[https://github.com/apache/cassandra/pull/3901] by checking what the actual
replica in the second one in the read plan and using this information to drop
messages between right nodes.
> Flaky test - org.apache.cassandra.distributed.test.ReadSpeculationTest
> ----------------------------------------------------------------------
>
> Key: CASSANDRA-20251
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20251
> Project: Apache Cassandra
> Issue Type: Bug
> Components: Test/dtest/java
> Reporter: Dmitry Konstantinov
> Assignee: Dmitry Konstantinov
> Priority: Normal
> Fix For: 5.x
>
> Attachments:
> TEST-org.apache.cassandra.distributed.test.ReadSpeculationTest.xml,
> system_node1.log, system_node2.log, system_node3.log
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> [https://app.circleci.com/pipelines/github/instaclustr/cassandra/5285/workflows/20d3f23b-d9e5-4130-8c28-d87682f919de/jobs/329400/tests]
> {code:java}
> junit.framework.AssertionFailedError:
> Expecting actual:
> 6434477L
> to be greater than:
> 2000000000L
> at
> org.apache.cassandra.distributed.test.ReadSpeculationTest$TestScenario.assertWillSpeculate(ReadSpeculationTest.java:172)
> at
> org.apache.cassandra.distributed.test.ReadSpeculationTest.lambda$speculateTest$81c80a4a$2(ReadSpeculationTest.java:74)
> at
> org.apache.cassandra.concurrent.FutureTask$2.call(FutureTask.java:124)
> at org.apache.cassandra.concurrent.FutureTask.call(FutureTask.java:61)
> at org.apache.cassandra.concurrent.FutureTask.run(FutureTask.java:71)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.base/java.lang.Thread.run(Thread.java:833) {code}
> Present in Butler as well:
> https://butler.cassandra.apache.org/#/ci/upstream/workflow/Cassandra-trunk/failure/org.apache.cassandra.distributed.test/ReadSpeculationTest/speculateTest
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