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Posted to jira@kafka.apache.org by "Tom Bentley (Jira)" <ji...@apache.org> on 2020/10/21 17:13:00 UTC
[jira] [Commented] (KAFKA-10579) Flaky test
connect.integration.InternalTopicsIntegrationTest.testStartWhenInternalTopicsCreatedManuallyWithCompactForBrokersDefaultCleanupPolicy
[ https://issues.apache.org/jira/browse/KAFKA-10579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17218420#comment-17218420 ]
Tom Bentley commented on KAFKA-10579:
-------------------------------------
Looking at the code it seems to me this might be a lack of thread safety in Reflections, and so might be addressed by https://github.com/ronmamo/reflections/issues/281 once a version with that fix in it is released.
> Flaky test connect.integration.InternalTopicsIntegrationTest.testStartWhenInternalTopicsCreatedManuallyWithCompactForBrokersDefaultCleanupPolicy
> ------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-10579
> URL: https://issues.apache.org/jira/browse/KAFKA-10579
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Reporter: A. Sophie Blee-Goldman
> Priority: Major
> Labels: flaky-test
>
>
> {{java.lang.NullPointerException
> at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
> at org.reflections.Store.getAllIncluding(Store.java:82)
> at org.reflections.Store.getAll(Store.java:93)
> at org.reflections.Reflections.getSubTypesOf(Reflections.java:404)
> at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.getPluginDesc(DelegatingClassLoader.java:355)
> at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.scanPluginPath(DelegatingClassLoader.java:340)
> at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.scanUrlsAndAddPlugins(DelegatingClassLoader.java:268)
> at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.initPluginLoader(DelegatingClassLoader.java:216)
> at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.initLoaders(DelegatingClassLoader.java:209)
> at org.apache.kafka.connect.runtime.isolation.Plugins.<init>(Plugins.java:61)
> at org.apache.kafka.connect.cli.ConnectDistributed.startConnect(ConnectDistributed.java:91)
> at org.apache.kafka.connect.util.clusters.WorkerHandle.start(WorkerHandle.java:50)
> at org.apache.kafka.connect.util.clusters.EmbeddedConnectCluster.addWorker(EmbeddedConnectCluster.java:167)
> at org.apache.kafka.connect.integration.InternalTopicsIntegrationTest.testStartWhenInternalTopicsCreatedManuallyWithCompactForBrokersDefaultCleanupPolicy(InternalTopicsIntegrationTest.java:260)}}
> {{}}
> https://github.com/apache/kafka/pull/9280/checks?check_run_id=1214776222{{}}
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