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https://issues.apache.org/jira/browse/HDFS-17651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17914303#comment-17914303
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ASF GitHub Bot commented on HDFS-17651:
---------------------------------------

hadoop-yetus commented on PR #7244:
URL: https://github.com/apache/hadoop/pull/7244#issuecomment-2599626800

   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
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   |||| _ Prechecks _ |
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   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to 
include 9 new or modified test files.  |
   |||| _ HDFS-17531 Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |  43m 28s |  |  HDFS-17531 passed  |
   | +1 :green_heart: |  compile  |   1m  2s |  |  HDFS-17531 passed with JDK 
Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04  |
   | +1 :green_heart: |  compile  |   0m 39s |  |  HDFS-17531 passed with JDK 
Private Build-1.8.0_432-8u432-ga~us1-0ubuntu2~20.04-ga  |
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   | +1 :green_heart: |  mvnsite  |   0m 44s |  |  HDFS-17531 passed  |
   | +1 :green_heart: |  javadoc  |   0m 41s |  |  HDFS-17531 passed with JDK 
Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04  |
   | +1 :green_heart: |  javadoc  |   0m 31s |  |  HDFS-17531 passed with JDK 
Private Build-1.8.0_432-8u432-ga~us1-0ubuntu2~20.04-ga  |
   | +1 :green_heart: |  spotbugs  |   1m 29s |  |  HDFS-17531 passed  |
   | +1 :green_heart: |  shadedclient  |  37m 13s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   0m 36s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |   1m  4s |  |  the patch passed with JDK 
Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04  |
   | +1 :green_heart: |  javac  |   1m  4s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |   0m 37s |  |  the patch passed with JDK 
Private Build-1.8.0_432-8u432-ga~us1-0ubuntu2~20.04-ga  |
   | +1 :green_heart: |  javac  |   0m 37s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | +1 :green_heart: |  checkstyle  |   0m 20s |  |  the patch passed  |
   | +1 :green_heart: |  mvnsite  |   0m 39s |  |  the patch passed  |
   | +1 :green_heart: |  javadoc  |   0m 31s |  |  the patch passed with JDK 
Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04  |
   | +1 :green_heart: |  javadoc  |   0m 24s |  |  the patch passed with JDK 
Private Build-1.8.0_432-8u432-ga~us1-0ubuntu2~20.04-ga  |
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   | +1 :green_heart: |  shadedclient  |  33m 12s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  34m 40s |  |  hadoop-hdfs-rbf in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   0m 39s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 163m  4s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.47 ServerAPI=1.47 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7244/26/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/7244 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets xmllint |
   | uname | Linux 59d698ba4044 5.15.0-124-generic #134-Ubuntu SMP Fri Sep 27 
20:20:17 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | HDFS-17531 / 3ceefb335b546908b6494a19d9d124db1df4aa59 |
   | Default Java | Private Build-1.8.0_432-8u432-ga~us1-0ubuntu2~20.04-ga |
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/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_432-8u432-ga~us1-0ubuntu2~20.04-ga |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7244/26/testReport/ |
   | Max. process+thread count | 3424 (vs. ulimit of 5500) |
   | modules | C: hadoop-hdfs-project/hadoop-hdfs-rbf U: 
hadoop-hdfs-project/hadoop-hdfs-rbf |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7244/26/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.
   
   




> [ARR] Async handler executor isolation.
> ---------------------------------------
>
>                 Key: HDFS-17651
>                 URL: https://issues.apache.org/jira/browse/HDFS-17651
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: farmmamba
>            Assignee: farmmamba
>            Priority: Major
>              Labels: pull-request-available
>
> The main purpose of this PR is to isolate each nameservice by letting each 
> nameservice has its own async handler thread pool.
> Think below situation:
> When a downstream nameserivce ns1 has poor performance, the threads in async 
> handler thread pool will be occupied adding calls to the ns1's 
> Connection#calls. There will be no available threads to handle normal 
> nameservice's rpc request asynchronously. Therefore, it is better to isolate 
> the async handler thread pool of different nameservices.



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