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https://issues.apache.org/jira/browse/HADOOP-19049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17813323#comment-17813323
 ] 

ASF GitHub Bot commented on HADOOP-19049:
-----------------------------------------

hadoop-yetus commented on PR #6488:
URL: https://github.com/apache/hadoop/pull/6488#issuecomment-1921659870

   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   0m 49s |  |  Docker mode activated.  |
   |||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  |  No case conflicting files 
found.  |
   | +0 :ok: |  codespell  |   0m  0s |  |  codespell was not available.  |
   | +0 :ok: |  detsecrets  |   0m  0s |  |  detect-secrets was not available.  
|
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain 
any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to 
include 2 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |  46m 50s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |  18m 27s |  |  trunk passed with JDK 
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04  |
   | +1 :green_heart: |  compile  |  16m 35s |  |  trunk passed with JDK 
Private Build-1.8.0_392-8u392-ga-1~20.04-b08  |
   | +1 :green_heart: |  checkstyle  |   1m 16s |  |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   1m 39s |  |  trunk passed  |
   | +1 :green_heart: |  javadoc  |   1m 13s |  |  trunk passed with JDK 
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04  |
   | +1 :green_heart: |  javadoc  |   0m 50s |  |  trunk passed with JDK 
Private Build-1.8.0_392-8u392-ga-1~20.04-b08  |
   | +1 :green_heart: |  spotbugs  |   2m 32s |  |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  40m 51s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   0m 54s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  17m 43s |  |  the patch passed with JDK 
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04  |
   | +1 :green_heart: |  javac  |  17m 43s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  16m 35s |  |  the patch passed with JDK 
Private Build-1.8.0_392-8u392-ga-1~20.04-b08  |
   | +1 :green_heart: |  javac  |  16m 35s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | +1 :green_heart: |  checkstyle  |   1m 11s |  |  the patch passed  |
   | +1 :green_heart: |  mvnsite  |   1m 37s |  |  the patch passed  |
   | +1 :green_heart: |  javadoc  |   1m  4s |  |  the patch passed with JDK 
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04  |
   | +1 :green_heart: |  javadoc  |   0m 50s |  |  the patch passed with JDK 
Private Build-1.8.0_392-8u392-ga-1~20.04-b08  |
   | +1 :green_heart: |  spotbugs  |   2m 42s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  39m 45s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  19m 22s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   0m 57s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 236m 40s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.44 ServerAPI=1.44 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6488/4/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/6488 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
   | uname | Linux 25e24de0441c 5.15.0-88-generic #98-Ubuntu SMP Mon Oct 2 
15:18:56 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / 114bd63a344d04cc524809a574f072d3ae2d8aff |
   | Default Java | Private Build-1.8.0_392-8u392-ga-1~20.04-b08 |
   | Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04 
/usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_392-8u392-ga-1~20.04-b08 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6488/4/testReport/ |
   | Max. process+thread count | 3135 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6488/4/console |
   | versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
   | Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   




> Class loader leak caused by StatisticsDataReferenceCleaner thread
> -----------------------------------------------------------------
>
>                 Key: HADOOP-19049
>                 URL: https://issues.apache.org/jira/browse/HADOOP-19049
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: common
>    Affects Versions: 3.3.6
>            Reporter: Jia Fan
>            Priority: Major
>              Labels: pull-request-available
>
> The 
> "org.apache.hadoop.fs.FileSystem$Statistics$StatisticsDataReferenceCleaner" 
> daemon thread was created by FileSystem. 
> This is fine if the thread's context class loader is the system class loader, 
> but it's bad if the context class loader is a custom class loader. The 
> reference held by this daemon thread means that the class loader can never 
> become eligible for GC.



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