HDFS-17867. Implement weighted random choose in NetworkTopology

[khazhen]

Refer to HDFS-17867.

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 44s		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.
+0 🆗	xmllint	0m 0s		xmllint was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 5 new or modified test files.
			_ trunk Compile Tests _
-1 ❌	mvninstall	22m 26s	/branch-mvninstall-root.txt	root in trunk failed.
+1 💚	compile	0m 47s		trunk passed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04
+1 💚	compile	0m 46s		trunk passed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
+1 💚	checkstyle	0m 32s		trunk passed
+1 💚	mvnsite	0m 53s		trunk passed
+1 💚	javadoc	0m 43s		trunk passed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 38s		trunk passed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
+1 💚	spotbugs	2m 8s		trunk passed
+1 💚	shadedclient	16m 52s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
-1 ❌	mvninstall	0m 18s	/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
-1 ❌	compile	0m 17s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-21.0.7+6-Ubuntu-0ubuntu120.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04.
-1 ❌	javac	0m 17s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-21.0.7+6-Ubuntu-0ubuntu120.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04.
-1 ❌	compile	0m 19s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-17.0.15+6-Ubuntu-0ubuntu120.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04.
-1 ❌	javac	0m 19s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-17.0.15+6-Ubuntu-0ubuntu120.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04.
-1 ❌	blanks	0m 0s	/blanks-eol.txt	The patch has 4 line(s) that end in blanks. Use git apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply
-0 ⚠️	checkstyle	0m 25s	/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs-project/hadoop-hdfs: The patch generated 12 new + 252 unchanged - 0 fixed = 264 total (was 252)
-1 ❌	mvnsite	0m 19s	/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
-1 ❌	javadoc	0m 19s	/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-21.0.7+6-Ubuntu-0ubuntu120.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04.
-1 ❌	javadoc	0m 17s	/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-17.0.15+6-Ubuntu-0ubuntu120.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04.
-1 ❌	spotbugs	0m 18s	/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
-1 ❌	shadedclient	7m 11s		patch has errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	0m 19s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+1 💚	asflicense	0m 18s		The patch does not generate ASF License warnings.
		55m 34s

Subsystem	Report/Notes
Docker	ClientAPI=1.52 ServerAPI=1.52 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8154/1/artifact/out/Dockerfile
GITHUB PR	#8154
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets xmllint
uname	Linux 52b0e37c1e11 5.15.0-164-generic #174-Ubuntu SMP Fri Nov 14 20:25:16 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / 4089a90
Default Java	Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
Multi-JDK versions	/usr/lib/jvm/java-21-openjdk-amd64:Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04 /usr/lib/jvm/java-17-openjdk-amd64:Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8154/1/testReport/
Max. process+thread count	613 (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-8154/1/console
versions	git=2.25.1 maven=3.9.11 spotbugs=4.9.7
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[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 44s		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.
+0 🆗	xmllint	0m 0s		xmllint was not available.
+1 💚	@author	0m 1s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 5 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	21m 55s		trunk passed
+1 💚	compile	0m 48s		trunk passed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04
+1 💚	compile	0m 48s		trunk passed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
+1 💚	checkstyle	0m 31s		trunk passed
+1 💚	mvnsite	0m 52s		trunk passed
+1 💚	javadoc	0m 42s		trunk passed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 37s		trunk passed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
+1 💚	spotbugs	2m 1s		trunk passed
+1 💚	shadedclient	15m 24s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 43s		the patch passed
+1 💚	compile	0m 38s		the patch passed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04
+1 💚	javac	0m 38s		the patch passed
+1 💚	compile	0m 41s		the patch passed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
+1 💚	javac	0m 41s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
-0 ⚠️	checkstyle	0m 25s	/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs-project/hadoop-hdfs: The patch generated 1 new + 252 unchanged - 0 fixed = 253 total (was 252)
+1 💚	mvnsite	0m 47s		the patch passed
-1 ❌	javadoc	0m 36s	/results-javadoc-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-21.0.7+6-Ubuntu-0ubuntu120.04.txt	hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-21.0.7+6-Ubuntu-0ubuntu120.04 with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04 generated 23 new + 9977 unchanged - 23 fixed = 10000 total (was 10000)
-1 ❌	javadoc	0m 35s	/results-javadoc-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-17.0.15+6-Ubuntu-0ubuntu120.04.txt	hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-17.0.15+6-Ubuntu-0ubuntu120.04 with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04 generated 21 new + 9676 unchanged - 0 fixed = 9697 total (was 9676)
+1 💚	spotbugs	1m 58s		the patch passed
+1 💚	shadedclient	15m 25s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	172m 13s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 27s		The patch does not generate ASF License warnings.
		238m 18s

Reason	Tests
Failed junit tests	hadoop.hdfs.tools.TestDFSAdmin

Subsystem	Report/Notes
Docker	ClientAPI=1.52 ServerAPI=1.52 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8154/3/artifact/out/Dockerfile
GITHUB PR	#8154
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets xmllint
uname	Linux 050d0a3b7fd4 5.15.0-164-generic #174-Ubuntu SMP Fri Nov 14 20:25:16 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / 7cd4d36
Default Java	Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
Multi-JDK versions	/usr/lib/jvm/java-21-openjdk-amd64:Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04 /usr/lib/jvm/java-17-openjdk-amd64:Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8154/3/testReport/
Max. process+thread count	4601 (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-8154/3/console
versions	git=2.25.1 maven=3.9.11 spotbugs=4.9.7
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