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https://issues.apache.org/jira/browse/HDFS-17958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18103785#comment-18103785
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ASF GitHub Bot commented on HDFS-17958:
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hadoop-yetus commented on PR #8671:
URL: https://github.com/apache/hadoop/pull/8671#issuecomment-5256898777
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 36s | | 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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| +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 | 41m 48s | | trunk passed |
| +1 :green_heart: | compile | 1m 46s | | trunk passed with JDK
Ubuntu-21.0.11+10-1-24.04.2-Ubuntu |
| +1 :green_heart: | compile | 1m 50s | | trunk passed with JDK
Ubuntu-17.0.19+10-1-24.04.2-Ubuntu |
| +1 :green_heart: | checkstyle | 1m 52s | | trunk passed |
| +1 :green_heart: | mvnsite | 1m 58s | | trunk passed |
| +1 :green_heart: | javadoc | 1m 34s | | trunk passed with JDK
Ubuntu-21.0.11+10-1-24.04.2-Ubuntu |
| +1 :green_heart: | javadoc | 1m 32s | | trunk passed with JDK
Ubuntu-17.0.19+10-1-24.04.2-Ubuntu |
| +1 :green_heart: | spotbugs | 4m 13s | | trunk passed |
| +1 :green_heart: | shadedclient | 31m 39s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| -1 :x: | mvninstall | 1m 16s |
[/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8671/1/artifact/out/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch failed. |
| -1 :x: | compile | 1m 11s |
[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-21.0.11+10-1-24.04.2-Ubuntu.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8671/1/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-21.0.11+10-1-24.04.2-Ubuntu.txt)
| hadoop-hdfs in the patch failed with JDK
Ubuntu-21.0.11+10-1-24.04.2-Ubuntu. |
| -1 :x: | javac | 1m 11s |
[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-21.0.11+10-1-24.04.2-Ubuntu.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8671/1/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-21.0.11+10-1-24.04.2-Ubuntu.txt)
| hadoop-hdfs in the patch failed with JDK
Ubuntu-21.0.11+10-1-24.04.2-Ubuntu. |
| -1 :x: | compile | 1m 15s |
[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-17.0.19+10-1-24.04.2-Ubuntu.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8671/1/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-17.0.19+10-1-24.04.2-Ubuntu.txt)
| hadoop-hdfs in the patch failed with JDK
Ubuntu-17.0.19+10-1-24.04.2-Ubuntu. |
| -1 :x: | javac | 1m 15s |
[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-17.0.19+10-1-24.04.2-Ubuntu.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8671/1/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-17.0.19+10-1-24.04.2-Ubuntu.txt)
| hadoop-hdfs in the patch failed with JDK
Ubuntu-17.0.19+10-1-24.04.2-Ubuntu. |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| +1 :green_heart: | checkstyle | 1m 16s | | the patch passed |
| -1 :x: | mvnsite | 1m 18s |
[/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8671/1/artifact/out/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch failed. |
| +1 :green_heart: | javadoc | 1m 0s | | the patch passed with JDK
Ubuntu-21.0.11+10-1-24.04.2-Ubuntu |
| +1 :green_heart: | javadoc | 1m 1s | | the patch passed with JDK
Ubuntu-17.0.19+10-1-24.04.2-Ubuntu |
| -1 :x: | spotbugs | 1m 17s |
[/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8671/1/artifact/out/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch failed. |
| -1 :x: | shadedclient | 18m 7s | | patch has errors when building
and testing our client artifacts. |
|||| _ Other Tests _ |
| -1 :x: | unit | 1m 21s |
[/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8671/1/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch failed. |
| +1 :green_heart: | asflicense | 0m 35s | | The patch does not
generate ASF License warnings. |
| | | 111m 20s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.55 ServerAPI=1.55 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8671/1/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/8671 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | Linux fbb146be2f1a 5.15.0-181-generic #191-Ubuntu SMP Fri May 22
19:09:02 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 561414f6e72de1f58d540610e8204c1497fc23de |
| Default Java | Ubuntu-17.0.19+10-1-24.04.2-Ubuntu |
| Multi-JDK versions |
/usr/lib/jvm/java-21-openjdk-amd64:Ubuntu-21.0.11+10-1-24.04.2-Ubuntu
/usr/lib/jvm/java-17-openjdk-amd64:Ubuntu-17.0.19+10-1-24.04.2-Ubuntu |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8671/1/testReport/ |
| Max. process+thread count | 606 (vs. ulimit of 10000) |
| 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-8671/1/console |
| versions | git=2.43.0 maven=3.9.15 spotbugs=4.9.7 |
| Powered by | Apache Yetus 0.14.1 https://yetus.apache.org |
This message was automatically generated.
> Support NameNode-scoped configuration for dfs.namenode.observer.enabled
> -----------------------------------------------------------------------
>
> Key: HDFS-17958
> URL: https://issues.apache.org/jira/browse/HDFS-17958
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.4.1
> Reporter: Mohammad Arshad
> Assignee: Mohammad Arshad
> Priority: Major
> Labels: pull-request-available
>
> *Background:*
> I installed the HDFS service with HA enabled, using two NameNodes—one active
> and one standby. All HDFS components currently share the same set of
> configuration files.
> I now want to add a third NameNode as an Observer NameNode. However, I've run
> into a limitation:
> * If I set dfs.namenode.observer.enabled=true to designate the third
> NameNode as an observer, all the NameNodes start as observers, since they
> share the same configuration.
> * Alternatively, I can start the third NameNode as an observer by passing
> the -observer flag at startup. But since I'm using a cluster installation
> tool, this approach requires me to separately track which NameNode is the
> observer and apply that information during startup—which adds unwanted
> complexity.
>
>
> *Proposed Change:*
> Similar to other existing NameNode-scoped configurations, I propose adding a
> NameNode-scoped configuration:
> dfs.namenode.observer.enabled.<nameserviceId>.<namenodeId>
> This configuration would be set only in the configuration of the specific
> NameNode we want to designate as the observer.
> As a result, only that NameNode would start as an Observer NameNode, leaving
> the other NameNodes unaffected.
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