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https://issues.apache.org/jira/browse/HADOOP-19049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17810015#comment-17810015
 ] 

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

hadoop-yetus commented on PR #6488:
URL: https://github.com/apache/hadoop/pull/6488#issuecomment-1906363541

   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   0m 32s |  |  Docker mode activated.  |
   |||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  |  No case conflicting files 
found.  |
   | +0 :ok: |  codespell  |   0m  1s |  |  codespell was not available.  |
   | +0 :ok: |  detsecrets  |   0m  1s |  |  detect-secrets was not available.  
|
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain 
any @author tags.  |
   | -1 :x: |  test4tests  |   0m  0s |  |  The patch doesn't appear to include 
any new or modified tests. Please justify why no new tests are needed for this 
patch. Also please list what manual steps were performed to verify this patch.  
|
   |||| _ trunk Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |  41m 17s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |  16m  3s |  |  trunk passed with JDK 
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04  |
   | +1 :green_heart: |  compile  |  14m 41s |  |  trunk passed with JDK 
Private Build-1.8.0_392-8u392-ga-1~20.04-b08  |
   | +1 :green_heart: |  checkstyle  |   1m 12s |  |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   1m 34s |  |  trunk passed  |
   | +1 :green_heart: |  javadoc  |   1m 10s |  |  trunk passed with JDK 
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04  |
   | +1 :green_heart: |  javadoc  |   0m 48s |  |  trunk passed with JDK 
Private Build-1.8.0_392-8u392-ga-1~20.04-b08  |
   | +1 :green_heart: |  spotbugs  |   2m 28s |  |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  34m  2s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   0m 51s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  17m 34s |  |  the patch passed with JDK 
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04  |
   | +1 :green_heart: |  javac  |  17m 34s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  15m 41s |  |  the patch passed with JDK 
Private Build-1.8.0_392-8u392-ga-1~20.04-b08  |
   | +1 :green_heart: |  javac  |  15m 41s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | +1 :green_heart: |  checkstyle  |   1m  7s |  |  the patch passed  |
   | +1 :green_heart: |  mvnsite  |   1m 34s |  |  the patch passed  |
   | +1 :green_heart: |  javadoc  |   1m  5s |  |  the patch passed with JDK 
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04  |
   | +1 :green_heart: |  javadoc  |   0m 48s |  |  the patch passed with JDK 
Private Build-1.8.0_392-8u392-ga-1~20.04-b08  |
   | +1 :green_heart: |  spotbugs  |   2m 36s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  34m 10s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  19m 16s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   0m 55s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 212m 17s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.44 ServerAPI=1.44 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6488/1/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 67514ebd8601 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 / 47532b7c90b3a94fbbadb17eb5218695c614f3a0 |
   | 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-6488/1/testReport/ |
   | Max. process+thread count | 3152 (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-6488/1/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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