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https://issues.apache.org/jira/browse/HADOOP-19525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17940763#comment-17940763
 ] 

ASF GitHub Bot commented on HADOOP-19525:
-----------------------------------------

hadoop-yetus commented on PR #7570:
URL: https://github.com/apache/hadoop/pull/7570#issuecomment-2776435360

   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   0m 33s |  |  Docker mode activated.  |
   |||| _ Prechecks _ |
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found.  |
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|
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   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to 
include 54 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
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Ubuntu-11.0.26+4-post-Ubuntu-1ubuntu120.04  |
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Private Build-1.8.0_442-8u442-b06~us1-0ubuntu1~20.04-b06  |
   | +1 :green_heart: |  checkstyle  |   4m 28s |  |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |  13m  7s |  |  trunk passed  |
   | +1 :green_heart: |  javadoc  |  11m 59s |  |  trunk passed with JDK 
Ubuntu-11.0.26+4-post-Ubuntu-1ubuntu120.04  |
   | +1 :green_heart: |  javadoc  |   9m 49s |  |  trunk passed with JDK 
Private Build-1.8.0_442-8u442-b06~us1-0ubuntu1~20.04-b06  |
   | +1 :green_heart: |  spotbugs  |  19m 56s |  |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  34m 22s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 32s |  |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   7m 23s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  14m 48s |  |  the patch passed with JDK 
Ubuntu-11.0.26+4-post-Ubuntu-1ubuntu120.04  |
   | +1 :green_heart: |  javac  |  14m 48s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  13m 37s |  |  the patch passed with JDK 
Private Build-1.8.0_442-8u442-b06~us1-0ubuntu1~20.04-b06  |
   | +1 :green_heart: |  javac  |  13m 37s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | -0 :warning: |  checkstyle  |   4m 28s | 
[/results-checkstyle-root.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7570/4/artifact/out/results-checkstyle-root.txt)
 |  root: The patch generated 13 new + 2388 unchanged - 13 fixed = 2401 total 
(was 2401)  |
   | +1 :green_heart: |  mvnsite  |  13m 17s |  |  the patch passed  |
   | +1 :green_heart: |  javadoc  |  11m 45s |  |  the patch passed with JDK 
Ubuntu-11.0.26+4-post-Ubuntu-1ubuntu120.04  |
   | +1 :green_heart: |  javadoc  |  11m  7s |  |  the patch passed with JDK 
Private Build-1.8.0_442-8u442-b06~us1-0ubuntu1~20.04-b06  |
   | +1 :green_heart: |  spotbugs  |  22m 39s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  35m  5s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  15m  8s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  unit  |   6m 10s |  |  hadoop-yarn-common in the patch 
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   | +1 :green_heart: |  unit  |   4m 55s |  |  hadoop-yarn-server-common in 
the patch passed.  |
   | +1 :green_heart: |  unit  | 144m 29s |  |  
hadoop-yarn-server-resourcemanager in the patch passed.  |
   | +1 :green_heart: |  unit  |  27m 43s |  |  hadoop-yarn-server-nodemanager 
in the patch passed.  |
   | +1 :green_heart: |  unit  |  29m 38s |  |  hadoop-yarn-client in the patch 
passed.  |
   | +1 :green_heart: |  unit  |   8m 57s |  |  hadoop-mapreduce-client-core in 
the patch passed.  |
   | +1 :green_heart: |  unit  |   9m 19s |  |  hadoop-mapreduce-client-app in 
the patch passed.  |
   | +1 :green_heart: |  unit  |   4m 40s |  |  hadoop-mapreduce-client-hs in 
the patch passed.  |
   | +1 :green_heart: |  unit  | 128m 56s |  |  
hadoop-mapreduce-client-jobclient in the patch passed.  |
   | +1 :green_heart: |  unit  |   0m 52s |  |  hadoop-yarn-server-router in 
the patch passed.  |
   | +1 :green_heart: |  unit  |  22m 41s |  |  
hadoop-yarn-applications-distributedshell in the patch passed.  |
   | +1 :green_heart: |  unit  |  21m  9s |  |  hadoop-yarn-services-core in 
the patch passed.  |
   | +1 :green_heart: |  unit  |  12m 50s |  |  hadoop-sls in the patch passed. 
 |
   | +1 :green_heart: |  asflicense  |   1m 15s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 742m 48s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.48 ServerAPI=1.48 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7570/4/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/7570 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
   | uname | Linux 12fc94763235 5.15.0-130-generic #140-Ubuntu SMP Wed Dec 18 
17:59:53 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / e1a23c17405c35dab9794a88d3d33333fac96f7d |
   | Default Java | Private Build-1.8.0_442-8u442-b06~us1-0ubuntu1~20.04-b06 |
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/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_442-8u442-b06~us1-0ubuntu1~20.04-b06 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7570/4/testReport/ |
   | Max. process+thread count | 1571 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager
 hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient
 hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell
 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core
 hadoop-tools/hadoop-sls U: . |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7570/4/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.
   
   




> Use java.time.Clock instead of org.apache.hadoop.util.Clock
> -----------------------------------------------------------
>
>                 Key: HADOOP-19525
>                 URL: https://issues.apache.org/jira/browse/HADOOP-19525
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: hadoop-common, mapreduce, yarn
>            Reporter: Yaniv Kunda
>            Assignee: Yaniv Kunda
>            Priority: Major
>              Labels: pull-request-available
>
> Hadoop's {{Clock}} interface was recently moved from 
> {{org.apache.hadoop.yarn.util}} (in hadoop-yarn) to 
> {{org.apache.hadoop.util}} (in hadoop-common) as part of YARN-11765.
> I propose to seize the opportunity of this being targeted done for 3.5.0 to 
> modernize it usage:
> # Deprecate {{org.apache.hadoop.util.Clock}}
> # Replace all of its usages with {{java.time.Clock}}
> # Replace existing usages of its simple implementations, e.g. 
> {{SystemClock}}/{{UTCClock}} with standard {{java.time.Clock}} subclasses, 
> e.g. {{Clock.systemUTC()}}
> # Re-implement other implementations, e.g. 
> {{MonotonicClock}}/{{ControllerClock}}, as {{java.time.Clock}} subclasses.
> The standard {{java.time.Clock}} has a richer API supports modern 
> {{java.time}} classes such as {{Instant}} and {{ZoneId}}, and migration would 
> be straightforward:
> Just changing {{org.apache.hadoop.util.Clock.getTime()}} to 
> {{java.time.Clock.millis()}}



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