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https://issues.apache.org/jira/browse/CASSANDRA-16778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17525242#comment-17525242
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Ekaterina Dimitrova commented on CASSANDRA-16778:
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I saw this failure again today
https://jenkins-cm4.apache.org/job/Cassandra-trunk/1088/testReport/junit/org.apache.cassandra.distributed.test/IPMembershipTest/startupNewIP/
> Jvm-dtest race on closing and log messages
> ------------------------------------------
>
> Key: CASSANDRA-16778
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16778
> Project: Cassandra
> Issue Type: Bug
> Components: Test/dtest/java
> Reporter: Berenguer Blasi
> Priority: Low
> Fix For: 4.0.x, 4.x
>
> Attachments: system.log
>
>
> Failure of
> [IPMembershipTest|https://ci-cassandra.apache.org/job/Cassandra-4.0.0/40/testReport/junit/org.apache.cassandra.distributed.test/IPMembershipTest/startupNewIP/]:
> {noformat}
> Uncaught exceptions were thrown during test
> {noformat}
> led me to investigate the
> [logs|https://nightlies.apache.org/cassandra/cassandra-4.0.0/Cassandra-4.0.0-jvm-dtest/37/Cassandra-4.0.0-jvm-dtest/jdk=jdk_11_latest,label=cassandra,split=6/build/test/logs/org.apache.cassandra.distributed.test.IPMembershipTest/%3cmain%3e/%3cmain%3e/]
> a bit where it seems we can be in a 'closed' state but trying to perform
> operations such as logging still
> {noformat}
> ERROR [RequestResponseStage-8] <main> 2021-06-30 08:18:31,211 uncaught
> exception in thread Thread[RequestResponseStage-8,5,node3]
> java.lang.IllegalStateException: Can't load
> ch.qos.logback.core.status.ErrorStatus. Instance class loader is already
> closed.
> at
> org.apache.cassandra.distributed.shared.InstanceClassLoader.loadClassInternal(InstanceClassLoader.java:93)
> at
> org.apache.cassandra.distributed.shared.InstanceClassLoader.loadClass(InstanceClassLoader.java:87)
> at
> ch.qos.logback.core.spi.ContextAwareBase.addError(ContextAwareBase.java:105)
> at
> ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAppenderBase.java:88)
> at
> ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:51)
> at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:270)
> at ch.qos.logback.classic.Logger.callAppenders(Logger.java:257)
> at
> ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:421)
> at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383)
> at ch.qos.logback.classic.Logger.log(Logger.java:765)
> at
> io.netty.util.internal.logging.LocationAwareSlf4JLogger.log(LocationAwareSlf4JLogger.java:50)
> at
> io.netty.util.internal.logging.LocationAwareSlf4JLogger.debug(LocationAwareSlf4JLogger.java:115)
> at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:224)
> at
> io.netty.buffer.PooledByteBufAllocator$PoolThreadLocalCache.onRemoval(PooledByteBufAllocator.java:516)
> at
> io.netty.buffer.PooledByteBufAllocator$PoolThreadLocalCache.onRemoval(PooledByteBufAllocator.java:483)
> at
> io.netty.util.concurrent.FastThreadLocal.remove(FastThreadLocal.java:256)
> at
> io.netty.util.concurrent.FastThreadLocal.removeAll(FastThreadLocal.java:67)
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:32)
> at java.base/java.lang.Thread.run(Thread.java:834)
> {noformat}
> Log attached
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