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https://issues.apache.org/jira/browse/CASSANDRA-17749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17566877#comment-17566877
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Brandon Williams commented on CASSANDRA-17749:
----------------------------------------------
I haven't been able to reproduce this because I believe it is very sensitive to
timing. We are forcing an update of the topology files
[here|https://github.com/apache/cassandra-dtest/blob/trunk/upgrade_tests/upgrade_through_versions_test.py#L511]
but this is being written in place. If the timer task in the ResourceWatcher
for PropertyFileSnitch fires while this happens, it may read an empty file,
causing this error. But this isn't a problem other than the log entry, since
the file will be read again with the correct information after it is written.
[Patch|https://github.com/driftx/cassandra-dtest/tree/CASSANDRA-17749] to
suppress the log, with [100
runs|https://app.circleci.com/pipelines/github/driftx/cassandra/544/workflows/954fcba1-be3a-47b5-8156-a1ce50afa4b4/jobs/6514].
> Fix flaky dtest -
> dtest-upgrade.upgrade_tests.upgrade_through_versions_test.TestUpgrade_indev_4_0_x_To_indev_4_1_x.test_bootstrap_multidc
> -----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-17749
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17749
> Project: Cassandra
> Issue Type: Bug
> Components: Test/dtest/python
> Reporter: Brandon Williams
> Assignee: Brandon Williams
> Priority: Normal
> Fix For: 4.1-beta, 4.x
>
>
> https://ci-cassandra.apache.org/job/Cassandra-4.1/93/testReport/dtest-upgrade.upgrade_tests.upgrade_through_versions_test/TestUpgrade_indev_4_0_x_To_indev_4_1_x/test_bootstrap_multidc/
> Error Message
> test teardown failure
> Stacktrace
> Unexpected error found in node logs (see stdout for full details). Errors:
> [[node2] "ERROR [ScheduledTasks:1] 2022-07-11 22:53:45,982
> ResourceWatcher.java:64 - Timed run of class
> org.apache.cassandra.locator.PropertyFileSnitch$1
> failed.\norg.apache.cassandra.exceptions.ConfigurationException: Snitch
> definitions at cassandra-topology.properties do not define a location for
> this node's broadcast address /127.0.0.2:7000, nor does it provides a
> default\n\tat
> org.apache.cassandra.locator.PropertyFileSnitch.reloadConfiguration(PropertyFileSnitch.java:191)\n\tat
>
> org.apache.cassandra.locator.PropertyFileSnitch$1.runMayThrow(PropertyFileSnitch.java:78)\n\tat
>
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)\n\tat
> org.apache.cassandra.utils.ResourceWatcher$WatchedResource.run(ResourceWatcher.java:57)\n\tat
>
> org.apache.cassandra.concurrent.ExecutionFailure$1.run(ExecutionFailure.java:124)\n\tat
>
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)\n\tat
> java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)\n\tat
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)\n\tat
>
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)\n\tat
>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)\n\tat
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)\n\tat
>
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)\n\tat
> java.lang.Thread.run(Thread.java:748)"]
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