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https://issues.apache.org/jira/browse/CASSANDRA-15165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16865941#comment-16865941
]
Venkata Harikrishna Nukala commented on CASSANDRA-15165:
--------------------------------------------------------
Here are the patch details:
[15165-trunk|https://github.com/nvharikrishna/cassandra/tree/15165-trunk]
[CircleCi|https://circleci.com/gh/nvharikrishna/cassandra/18]
> Reference-Reaper detected leak while running FramingTest unit test cases
> ------------------------------------------------------------------------
>
> Key: CASSANDRA-15165
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15165
> Project: Cassandra
> Issue Type: Bug
> Components: Test/unit
> Reporter: Venkata Harikrishna Nukala
> Assignee: Venkata Harikrishna Nukala
> Priority: Normal
> Fix For: 4.0
>
>
> Reference-Reaper detected leak while running FramingTest unit test cases.
> Here are the leak details:
> {code}
> [junit-timeout] ERROR [Reference-Reaper] 2019-06-17 01:44:53,812 Ref.java:228
> - LEAK DETECTED: a reference
> (org.apache.cassandra.utils.concurrent.Ref$State@15460327) to @876994034 was
> not released before the reference was garbage collected
> [junit-timeout] ERROR [Reference-Reaper] 2019-06-17 01:44:53,812 Ref.java:259
> - Allocate trace org.apache.cassandra.utils.concurrent.Ref$State@15460327:
> [junit-timeout] Thread[main,5,main]
> [junit-timeout] at java.lang.Thread.getStackTrace(Thread.java:1559)
> [junit-timeout] at
> org.apache.cassandra.utils.concurrent.Ref$Debug.<init>(Ref.java:249)
> [junit-timeout] at
> org.apache.cassandra.utils.concurrent.Ref$State.<init>(Ref.java:179)
> [junit-timeout] at
> org.apache.cassandra.utils.concurrent.Ref.<init>(Ref.java:101)
> [junit-timeout] at
> org.apache.cassandra.utils.memory.BufferPool$Chunk.setAttachment(BufferPool.java:960)
> [junit-timeout] at
> org.apache.cassandra.utils.memory.BufferPool$Chunk.set(BufferPool.java:1100)
> [junit-timeout] at
> org.apache.cassandra.utils.memory.BufferPool$Chunk.get(BufferPool.java:1090)
> [junit-timeout] at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.tryGetInternal(BufferPool.java:721)
> [junit-timeout] at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.tryGet(BufferPool.java:706)
> [junit-timeout] at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.get(BufferPool.java:656)
> [junit-timeout] at
> org.apache.cassandra.utils.memory.BufferPool$LocalPool.access$000(BufferPool.java:535)
> [junit-timeout] at
> org.apache.cassandra.utils.memory.BufferPool.getAtLeast(BufferPool.java:129)
> [junit-timeout] at
> org.apache.cassandra.net.FramingTest.sequenceOfMessages(FramingTest.java:413)
> [junit-timeout] at
> org.apache.cassandra.net.FramingTest.testRandomSequenceOfMessages(FramingTest.java:265)
> [junit-timeout] at
> org.apache.cassandra.net.FramingTest.testSomeMessages(FramingTest.java:259)
> [junit-timeout] at
> org.apache.cassandra.net.FramingTest.testRandomLegacy(FramingTest.java:243)
> [junit-timeout] at
> org.apache.cassandra.net.FramingTest.testRandomLegacy(FramingTest.java:234)
> [junit-timeout] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
> [junit-timeout] at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> [junit-timeout] at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> [junit-timeout] at java.lang.reflect.Method.invoke(Method.java:498)
> [junit-timeout] at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> [junit-timeout] at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> [junit-timeout] at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> [junit-timeout] at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> [junit-timeout] at
> org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> [junit-timeout] at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> [junit-timeout] at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> [junit-timeout] at
> org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> [junit-timeout] at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> [junit-timeout] at
> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> [junit-timeout] at
> org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> [junit-timeout] at
> org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> [junit-timeout] at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> [junit-timeout] at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> [junit-timeout] at
> org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> [junit-timeout] at
> junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:38)
> [junit-timeout] at
> org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:534)
> [junit-timeout] at
> org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1196)
> [junit-timeout] at
> org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1041)
> {code}
> “sliceAndConsume" method of ShareableBytes increases reference count.
> Reference acquired testRandomSequenceOfMessages method is not released which
> is causing the leak.
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