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https://issues.apache.org/jira/browse/HDFS-17818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18029766#comment-18029766
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ASF GitHub Bot commented on HDFS-17818:
---------------------------------------
hadoop-yetus commented on PR #7862:
URL: https://github.com/apache/hadoop/pull/7862#issuecomment-3401599765
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 21s | | 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.
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| +0 :ok: | xmllint | 0m 0s | | xmllint was not available. |
| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
any @author tags. |
| +1 :green_heart: | test4tests | 0m 0s | | The patch appears to
include 1 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 27m 20s | | trunk passed |
| +1 :green_heart: | compile | 0m 44s | | trunk passed |
| +1 :green_heart: | checkstyle | 0m 28s | | trunk passed |
| +1 :green_heart: | mvnsite | 0m 48s | | trunk passed |
| +1 :green_heart: | javadoc | 0m 41s | | trunk passed |
| -1 :x: | spotbugs | 0m 52s |
[/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/10/artifact/out/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in trunk failed. |
| +1 :green_heart: | shadedclient | 17m 59s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 0m 42s | | the patch passed |
| +1 :green_heart: | compile | 0m 41s | | the patch passed |
| +1 :green_heart: | javac | 0m 41s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| +1 :green_heart: | checkstyle | 0m 23s | | the patch passed |
| +1 :green_heart: | mvnsite | 0m 44s | | the patch passed |
| -1 :x: | javadoc | 0m 33s |
[/results-javadoc-javadoc-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/10/artifact/out/results-javadoc-javadoc-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs-project_hadoop-hdfs generated 3 new + 9671 unchanged - 0 fixed
= 9674 total (was 9671) |
| -1 :x: | spotbugs | 0m 46s |
[/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/10/artifact/out/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch failed. |
| +1 :green_heart: | shadedclient | 18m 55s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| -1 :x: | unit | 172m 21s |
[/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/10/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch failed. |
| +1 :green_heart: | asflicense | 0m 26s | | The patch does not
generate ASF License warnings. |
| | | 241m 0s | | |
| Reason | Tests |
|-------:|:------|
| Failed junit tests | hadoop.hdfs.tools.TestDFSAdmin |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.51 ServerAPI=1.51 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/10/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/7862 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets xmllint |
| uname | Linux 29332286f07b 5.15.0-156-generic #166-Ubuntu SMP Sat Aug 9
00:02:46 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 8258d01eb574009bc54f7298e0f7e0484dd90af9 |
| Default Java | Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/10/testReport/ |
| Max. process+thread count | 4027 (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-7862/10/console |
| versions | git=2.25.1 maven=3.9.11 |
| Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
This message was automatically generated.
> Fix serial fsimage transfer during checkpoint with multiple namenodes
> ---------------------------------------------------------------------
>
> Key: HDFS-17818
> URL: https://issues.apache.org/jira/browse/HDFS-17818
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.5.0
> Reporter: caozhiqiang
> Assignee: caozhiqiang
> Priority: Major
> Labels: pull-request-available
> Attachments: image-2025-10-14-11-24-46-741.png
>
>
> In our cluster, each namespace has four NameNodes: one active, one standby,
> and two observers. When the standby NameNode performs a checkpoint, it
> transfer the fsimage to the other three NameNodes. However, we found that
> these transfer are performed serially.
> The reason is that the corePoolSize in ThreadPoolExecutor is 0, and the
> transfer task does not fill the LinkedBlockingQueue, resulting in only one
> thread transfer the fsimage at a time. This greatly increases the checkpoint
> time.
> {code:java}
> ExecutorService executor = new ThreadPoolExecutor(0,
> activeNNAddresses.size(), 100,
> TimeUnit.MILLISECONDS, new
> LinkedBlockingQueue<Runnable>(activeNNAddresses.size()),
> uploadThreadFactory); {code}
> !image-2025-10-14-11-24-46-741.png|width=554,height=142!
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