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https://issues.apache.org/jira/browse/HDFS-17626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17882934#comment-17882934
 ] 

ASF GitHub Bot commented on HDFS-17626:
---------------------------------------

hadoop-yetus commented on PR #7053:
URL: https://github.com/apache/hadoop/pull/7053#issuecomment-2360299403

   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   0m 52s |  |  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 :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  |  44m 42s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |   1m 24s |  |  trunk passed with JDK 
Ubuntu-11.0.24+8-post-Ubuntu-1ubuntu320.04  |
   | +1 :green_heart: |  compile  |   1m 16s |  |  trunk passed with JDK 
Private Build-1.8.0_422-8u422-b05-1~20.04-b05  |
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   | +1 :green_heart: |  mvnsite  |   1m 26s |  |  trunk passed  |
   | +1 :green_heart: |  javadoc  |   1m 16s |  |  trunk passed with JDK 
Ubuntu-11.0.24+8-post-Ubuntu-1ubuntu320.04  |
   | +1 :green_heart: |  javadoc  |   1m 43s |  |  trunk passed with JDK 
Private Build-1.8.0_422-8u422-b05-1~20.04-b05  |
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   | +1 :green_heart: |  shadedclient  |  37m 10s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   1m 16s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |   1m 17s |  |  the patch passed with JDK 
Ubuntu-11.0.24+8-post-Ubuntu-1ubuntu320.04  |
   | +1 :green_heart: |  javac  |   1m 17s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |   1m  8s |  |  the patch passed with JDK 
Private Build-1.8.0_422-8u422-b05-1~20.04-b05  |
   | +1 :green_heart: |  javac  |   1m  8s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | +1 :green_heart: |  checkstyle  |   0m 58s |  |  the patch passed  |
   | +1 :green_heart: |  mvnsite  |   1m 15s |  |  the patch passed  |
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Ubuntu-11.0.24+8-post-Ubuntu-1ubuntu320.04  |
   | +1 :green_heart: |  javadoc  |   1m 36s |  |  the patch passed with JDK 
Private Build-1.8.0_422-8u422-b05-1~20.04-b05  |
   | +1 :green_heart: |  spotbugs  |   3m 20s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  37m  2s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  | 265m 38s |  |  hadoop-hdfs in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   0m 41s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 407m 37s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.47 ServerAPI=1.47 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7053/2/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/7053 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
   | uname | Linux 0f87bfa7b622 5.15.0-117-generic #127-Ubuntu SMP Fri Jul 5 
20:13:28 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / fc9d069d22cf1d0ef94e0f6f70841e84ab20c4de |
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/usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_422-8u422-b05-1~20.04-b05 
|
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7053/2/testReport/ |
   | Max. process+thread count | 3146 (vs. ulimit of 5500) |
   | modules | C: hadoop-hdfs-project/hadoop-hdfs U: 
hadoop-hdfs-project/hadoop-hdfs |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7053/2/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.
   
   




> Reduce lock contention at datanode startup
> ------------------------------------------
>
>                 Key: HDFS-17626
>                 URL: https://issues.apache.org/jira/browse/HDFS-17626
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Tao Li
>            Assignee: Tao Li
>            Priority: Minor
>              Labels: pull-request-available
>         Attachments: image-2024-09-18-20-45-56-999.png
>
>
> During the datanode startup process, there is a debug log, because there is 
> no LOG.isDebugEnabled() guard, so even if debug is not enabled, the read lock 
> will be obtained. The guard should be added here to reduce lock contention.
> !image-2024-09-18-20-45-56-999.png|width=333,height=263!
> !https://docs.corp.vipshop.com/uploader/f/4DSEukZKf6cV5VRY.png?accessToken=eyJhbGciOiJIUzI1NiIsImtpZCI6ImRlZmF1bHQiLCJ0eXAiOiJKV1QifQ.eyJleHAiOjE3MjY2NjQxNjYsImZpbGVHVUlEIjoiQWxvNE5uOU9OYko2aDJ4WCIsImlhdCI6MTcyNjY2MzU2NiwiaXNzIjoidXBsb2FkZXJfYWNjZXNzX3Jlc291cmNlIiwidXNlcklkIjo2MTYyMTQwfQ.DwDBnJ6I8vCFd14A-wsq2oLU5a0rcPoUvq49Z4aWg2A|width=334,height=133!



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