Dmitry Konstantinov created CASSANDRA-21074:
-----------------------------------------------
Summary: Flaky test -
ExportImportListCompressionDictionaryTest.testExportImportListCompressionDictionary
Key: CASSANDRA-21074
URL: https://issues.apache.org/jira/browse/CASSANDRA-21074
Project: Apache Cassandra
Issue Type: Bug
Reporter: Dmitry Konstantinov
[https://ci-cassandra.apache.org/job/Cassandra-trunk/2353/testReport/junit/org.apache.cas[…]stExportImportListCompressionDictionary_cdc_jdk11_x86_64/|https://ci-cassandra.apache.org/job/Cassandra-trunk/2353/testReport/junit/org.apache.cassandra.tools.nodetool/ExportImportListCompressionDictionaryTest/Tests___test_cdc_jdk11_11_20___testExportImportListCompressionDictionary_cdc_jdk11_x86_64/]
There is also a suspicious leak report in the test logs:
{code:java}
ERROR [Reference-Reaper] 2025-12-12T20:31:35,396 Ref.java:250 - LEAK DETECTED:
a reference (class
org.apache.cassandra.db.compression.ZstdCompressionDictionary$Tidy@1218524978:ZstdCompressionDictionary)
to class
org.apache.cassandra.db.compression.ZstdCompressionDictionary$Tidy@1218524978:ZstdCompressionDictionary
was not released before the reference was garbage collected ERROR
[Reference-Reaper] 2025-12-12T20:31:35,397 Ref.java:290 - Allocate trace class
org.apache.cassandra.db.compression.ZstdCompressionDictionary$Tidy@1218524978:ZstdCompressionDictionary:
Thread[RMI TCP Connection(52)-127.0.0.1,5,RMI Runtime] at
java.base/java.lang.Thread.getStackTrace(Thread.java:1602) at
org.apache.cassandra.utils.concurrent.Ref$Debug.<init>(Ref.java:280) at
org.apache.cassandra.utils.concurrent.Ref$State.<init>(Ref.java:201) at
org.apache.cassandra.utils.concurrent.Ref.<init>(Ref.java:118) at
org.apache.cassandra.db.compression.ZstdCompressionDictionary.<init>(ZstdCompressionDictionary.java:61)
at
org.apache.cassandra.db.compression.CompressionDictionary$Kind$1.createDictionary(CompressionDictionary.java:309)
at
org.apache.cassandra.db.compression.CompressionDictionary.createFromRow(CompressionDictionary.java:282)
at
org.apache.cassandra.schema.SystemDistributedKeyspace.retrieveLatestCompressionDictionary(SystemDistributedKeyspace.java:452)
at
org.apache.cassandra.db.compression.CompressionDictionaryManager.getCompressionDictionary(CompressionDictionaryManager.java:282)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566) at
sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71) at
jdk.internal.reflect.GeneratedMethodAccessor1.invoke(Unknown Source) at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566) at
java.base/sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:260) at
java.management/com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:112)
at
java.management/com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:46)
at
java.management/com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
at
java.management/com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:83)
at
java.management/com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:206)
at
java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:641)
at
java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
at java.base/jdk.internal.reflect.GeneratedMethodAccessor12.invoke(Unknown
Source) at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566) at
org.apache.cassandra.audit.AuditLogManager$JmxHandler.invoke(AuditLogManager.java:502)
at com.sun.proxy.$Proxy28.getAttribute(Unknown Source) at
java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1443)
at
java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1307)
at
java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1399)
at
java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.getAttribute(RMIConnectionImpl.java:637)
at java.base/jdk.internal.reflect.GeneratedMethodAccessor11.invoke(Unknown
Source) at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566) at
java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359) at
java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200) at
java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197) at
java.base/java.security.AccessController.doPrivileged(Native Method) at
java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196) at
java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
at
java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
at
java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
at java.base/java.security.AccessController.doPrivileged(Native Method) at
java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:829)
{code:java}
{code}
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