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https://issues.apache.org/jira/browse/HDFS-16757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17945591#comment-17945591
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ASF GitHub Bot commented on HDFS-16757:
---------------------------------------

hadoop-yetus commented on PR #6926:
URL: https://github.com/apache/hadoop/pull/6926#issuecomment-2814573788

   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
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   |||| _ Prechecks _ |
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|
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   | +0 :ok: |  xmllint  |   0m  1s |  |  xmllint was not available.  |
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain 
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   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to 
include 3 new or modified test files.  |
   |||| _ HDFS-2139 Compile Tests _ |
   | +0 :ok: |  mvndep  |   6m 59s |  |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  33m 26s |  |  HDFS-2139 passed  |
   | +1 :green_heart: |  compile  |   5m 35s |  |  HDFS-2139 passed with JDK 
Ubuntu-11.0.26+4-post-Ubuntu-1ubuntu120.04  |
   | +1 :green_heart: |  compile  |   4m 51s |  |  HDFS-2139 passed with JDK 
Private Build-1.8.0_442-8u442-b06~us1-0ubuntu1~20.04-b06  |
   | +1 :green_heart: |  checkstyle  |   1m 28s |  |  HDFS-2139 passed  |
   | +1 :green_heart: |  mvnsite  |   2m 12s |  |  HDFS-2139 passed  |
   | +1 :green_heart: |  javadoc  |   1m 59s |  |  HDFS-2139 passed with JDK 
Ubuntu-11.0.26+4-post-Ubuntu-1ubuntu120.04  |
   | +1 :green_heart: |  javadoc  |   2m 22s |  |  HDFS-2139 passed with JDK 
Private Build-1.8.0_442-8u442-b06~us1-0ubuntu1~20.04-b06  |
   | +1 :green_heart: |  spotbugs  |   5m 27s |  |  HDFS-2139 passed  |
   | +1 :green_heart: |  shadedclient  |  36m 15s |  |  branch has no errors 
when building and testing our client artifacts.  |
   | -0 :warning: |  patch  |  36m 37s |  |  Used diff version of patch file. 
Binary files and potentially other changes not applied. Please rebase and 
squash commits if necessary.  |
   |||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 33s |  |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   1m 50s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |   5m 23s |  |  the patch passed with JDK 
Ubuntu-11.0.26+4-post-Ubuntu-1ubuntu120.04  |
   | +1 :green_heart: |  cc  |   5m 23s |  |  the patch passed  |
   | +1 :green_heart: |  javac  |   5m 23s |  |  the patch passed  |
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Private Build-1.8.0_442-8u442-b06~us1-0ubuntu1~20.04-b06  |
   | +1 :green_heart: |  cc  |   4m 42s |  |  the patch passed  |
   | +1 :green_heart: |  javac  |   4m 42s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | -0 :warning: |  checkstyle  |   1m 17s | 
[/results-checkstyle-hadoop-hdfs-project.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6926/25/artifact/out/results-checkstyle-hadoop-hdfs-project.txt)
 |  hadoop-hdfs-project: The patch generated 1 new + 825 unchanged - 3 fixed = 
826 total (was 828)  |
   | +1 :green_heart: |  mvnsite  |   1m 56s |  |  the patch passed  |
   | +1 :green_heart: |  javadoc  |   1m 37s |  |  the patch passed with JDK 
Ubuntu-11.0.26+4-post-Ubuntu-1ubuntu120.04  |
   | +1 :green_heart: |  javadoc  |   2m  7s |  |  the patch passed with JDK 
Private Build-1.8.0_442-8u442-b06~us1-0ubuntu1~20.04-b06  |
   | +1 :green_heart: |  spotbugs  |   5m 42s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  36m  5s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |   2m 47s |  |  hadoop-hdfs-client in the patch 
passed.  |
   | +1 :green_heart: |  unit  |   5m 12s |  |  hadoop-hdfs in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   0m 38s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 169m 44s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.49 ServerAPI=1.49 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6926/25/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/6926 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets cc buflint 
bufcompat xmllint |
   | uname | Linux cfa58d1dc23f 5.15.0-136-generic #147-Ubuntu SMP Sat Mar 15 
15:53:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | HDFS-2139 / a213a24a7081ac83f3693ccc6c8fdfe41fb71a36 |
   | Default Java | Private Build-1.8.0_442-8u442-b06~us1-0ubuntu1~20.04-b06 |
   | Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.26+4-post-Ubuntu-1ubuntu120.04 
/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-6926/25/testReport/ |
   | Max. process+thread count | 804 (vs. ulimit of 5500) |
   | modules | C: hadoop-hdfs-project/hadoop-hdfs-client 
hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6926/25/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.
   
   




> Add a new method copyBlockCrossNamespace to DataNode
> ----------------------------------------------------
>
>                 Key: HDFS-16757
>                 URL: https://issues.apache.org/jira/browse/HDFS-16757
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: ZanderXu
>            Assignee: liuguanghua
>            Priority: Minor
>              Labels: pull-request-available
>
> Add a new method copyBlockCrossNamespace in DataTransferProtocol at the 
> DataNode Side.
> This method will copy a source block from one namespace to a target block 
> from a different namespace. If the target DN is the same with the current DN, 
> this method will copy the block via HardLink. If the target DN is different 
> with the current DN, this method will copy the block via TransferBlock.
> This method will contains some parameters:
>  * ExtendedBlock sourceBlock
>  * Token<BlockTokenIdentifier> sourceBlockToken
>  * ExtendedBlock targetBlock
>  * Token<BlockTokenIdentifier> targetBlockToken
>  * DatanodeInfo targetDN



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