[ 
https://issues.apache.org/jira/browse/DRILL-5922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16247969#comment-16247969
 ] 

ASF GitHub Bot commented on DRILL-5922:
---------------------------------------

Github user vrozov commented on a diff in the pull request:

    https://github.com/apache/drill/pull/1023#discussion_r150322554
  
    --- Diff: pom.xml ---
    @@ -442,7 +442,7 @@
                   
-Dorg.apache.drill.exec.server.Drillbit.system_options="org.apache.drill.exec.compile.ClassTransformer.scalar_replacement=on"
                   -Ddrill.test.query.printing.silent=true
                   -Ddrill.catastrophic_to_standard_out=true
    -              -XX:MaxPermSize=512M -XX:MaxDirectMemorySize=3072M
    +              -XX:MaxPermSize=512M -XX:MaxDirectMemorySize=4096M
    --- End diff --
    
    DRILL-5926 affects not only this PR but my PR  #1031 as well even though 
they are not related at all. At a minimum the change should be in a separate 
commit that refers to DRILL-5926 as it is a workaround and not an actual fix 
for the problem. In the future, the workaround may need to be reverted and if 
it is mixed with other changes, it will not be clear what needs to be reverted. 
Note that with other changes I would expect tests to require less memory, not 
more.


> Intermittent Memory Leaks in the ROOT allocator  
> -------------------------------------------------
>
>                 Key: DRILL-5922
>                 URL: https://issues.apache.org/jira/browse/DRILL-5922
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Timothy Farkas
>            Assignee: Timothy Farkas
>            Priority: Minor
>              Labels: ready-to-commit
>
> This issue was originall found by [~ben-zvi]. I am able to consistently 
> reproduce the error on my laptop by running the following unit test:
> org.apache.drill.exec.DrillSeparatePlanningTest#testMultiMinorFragmentComplexQuery
> {code}
> java.lang.IllegalStateException: Allocator[ROOT] closed with outstanding 
> child allocators.
> Allocator(ROOT) 0/1048576/10113536/3221225472 (res/actual/peak/limit)
>   child allocators: 1
>     Allocator(query:26049b50-0cec-0a92-437c-bbe486e1fcbf) 
> 1048576/0/0/268435456 (res/actual/peak/limit)
>       child allocators: 0
>       ledgers: 0
>       reservations: 0
>   ledgers: 0
>   reservations: 0
>       at 
> org.apache.drill.exec.memory.BaseAllocator.close(BaseAllocator.java:496) 
> ~[classes/:na]
>       at org.apache.drill.common.AutoCloseables.close(AutoCloseables.java:76) 
> [classes/:na]
>       at org.apache.drill.common.AutoCloseables.close(AutoCloseables.java:64) 
> [classes/:na]
>       at 
> org.apache.drill.exec.server.BootStrapContext.close(BootStrapContext.java:256)
>  ~[classes/:na]
>       at org.apache.drill.common.AutoCloseables.close(AutoCloseables.java:76) 
> [classes/:na]
>       at org.apache.drill.common.AutoCloseables.close(AutoCloseables.java:64) 
> [classes/:na]
>       at org.apache.drill.exec.server.Drillbit.close(Drillbit.java:205) 
> [classes/:na]
>       at org.apache.drill.BaseTestQuery.closeClient(BaseTestQuery.java:315) 
> [test-classes/:na]
>       at 
> org.apache.drill.BaseTestQuery.updateTestCluster(BaseTestQuery.java:157) 
> [test-classes/:na]
>       at 
> org.apache.drill.BaseTestQuery.updateTestCluster(BaseTestQuery.java:148) 
> [test-classes/:na]
>       at 
> org.apache.drill.exec.DrillSeparatePlanningTest.getFragmentsHelper(DrillSeparatePlanningTest.java:185)
>  [test-classes/:na]
>       at 
> org.apache.drill.exec.DrillSeparatePlanningTest.testMultiMinorFragmentComplexQuery(DrillSeparatePlanningTest.java:108)
>  [test-classes/:na]
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
> ~[na:1.8.0_144]
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
> ~[na:1.8.0_144]
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>  ~[na:1.8.0_144]
>       at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_144]
>       at 
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
>  [junit-4.11.jar:na]
>       at 
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
>  [junit-4.11.jar:na]
>       at 
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
>  [junit-4.11.jar:na]
>       at 
> mockit.integration.junit4.internal.JUnit4TestRunnerDecorator.executeTestMethod(JUnit4TestRunnerDecorator.java:120)
>  [jmockit-1.3.jar:na]
>       at 
> mockit.integration.junit4.internal.JUnit4TestRunnerDecorator.invokeExplosively(JUnit4TestRunnerDecorator.java:65)
>  [jmockit-1.3.jar:na]
>       at 
> mockit.integration.junit4.internal.MockFrameworkMethod.invokeExplosively(MockFrameworkMethod.java:29)
>  [jmockit-1.3.jar:na]
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
> ~[na:1.8.0_144]
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
> ~[na:1.8.0_144]
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>  ~[na:1.8.0_144]
>       at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_144]
>       at 
> mockit.internal.util.MethodReflection.invokeWithCheckedThrows(MethodReflection.java:95)
>  [jmockit-1.3.jar:na]
>       at 
> mockit.internal.annotations.MockMethodBridge.callMock(MockMethodBridge.java:76)
>  [jmockit-1.3.jar:na]
>       at 
> mockit.internal.annotations.MockMethodBridge.invoke(MockMethodBridge.java:41) 
> [jmockit-1.3.jar:na]
>       at 
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java)
>  [junit-4.11.jar:na]
>       at 
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
>  [junit-4.11.jar:na]
>       at 
> org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)
>  [junit-4.11.jar:na]
> {code}



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