YARN-11981: Utilise leaf-template capacity for the auto created queue

[Hean-Chhinling]

Contains content generated by Cursor.

Description of PR

Utilise leaf-template capacity for displaying the capacity of auto created queue.

There are two different type of leaf-template capacity configurations:

1. In Weight mode -> Flexible Mode

<property>
<name>yarn.scheduler.capacity.root.default.auto-queue-creation-v2.leaf-template.capacity</name>
<value>3w</value>
</property>

2. In relative and absolute mode -> Legacy mode

<property>
<name>yarn.scheduler.capacity.root.default.leaf-queue-template.capacity</name>
<value>100</value>
</property>

Therefore, the PR handle both of this cases and taking the capacity to the auto created child queue.

How was this patch tested?

Tested locally and works as expected. Please refer to the screenshot below:

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If an AI tool was used:

• The PR includes the phrase "Contains content generated by "
  where is the name of the AI tool used.
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[hadoop-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 51s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
			_ trunk Compile Tests _
+1 💚	mvninstall	48m 21s		trunk passed
+1 💚	shadedclient	83m 9s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	1m 28s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	shadedclient	33m 6s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	asflicense	0m 48s		The patch does not generate ASF License warnings.
		121m 27s

Subsystem	Report/Notes
Docker	ClientAPI=1.55 ServerAPI=1.55 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8674/1/artifact/out/Dockerfile
GITHUB PR	#8674
Optional Tests	dupname asflicense shadedclient codespell detsecrets
uname	Linux 30ed9ccb92c6 5.15.0-185-generic #195-Ubuntu SMP Fri Jun 19 17:11:50 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / 9dc9ba7
Max. process+thread count	589 (vs. ulimit of 10000)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8674/1/console
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[K0K0V0K]

Thanks @Hean-Chhinling for fixing this bug!

If i see correctly you checked in the

The PR includes the phrase "Contains content generated by "
where is the name of the AI tool used.

field on the PR, but i dont see this in github. Do i miss something?

[K0K0V0K]

Thanks @Hean-Chhinling !

LGTM!

[Hean-Chhinling]

Thanks @Hean-Chhinling for fixing this bug!

If i see correctly you checked in the

The PR includes the phrase "Contains content generated by "
where is the name of the AI tool used.

field on the PR, but i dont see this in github. Do i miss something?

Thanks you for the review @K0K0V0K.
I missed that statement now I added it at the top of my PR.

[susheelgupta7]

LGTM.

[Hean-Chhinling]

Hello @brumi1024 and @slfan1989,
May I ask for you guys review here?