YARN-11851. Make preemptable container tracking thread-safe. by deepujain · Pull Request #8389 · apache/hadoop

deepujain · 2026-03-27T06:52:19Z

Summary
This PR makes FairScheduler preemption tracking thread-safe by synchronizing mutable access in FSPreemptionThread.

Change

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSPreemptionThread.java: synchronize PreemptableContainers mutation and iteration so concurrent preemption bookkeeping cannot hit ConcurrentModificationException.
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFSPreemptionThread.java: add a regression test that hammers concurrent add and iterate access.

JIRA
Fixes YARN-11851

For code changes:

The title starts with the corresponding JIRA issue ID.
Object storage integration tests and endpoint declaration: Not applicable: this PR does not change an object-store connector.
No new dependencies are introduced.
No LICENSE or NOTICE updates are needed for this diff.

AI Tooling

Contains content generated by Codex.

AI-generated content is disclosed.
Use follows https://www.apache.org/legal/generative-tooling.html.

How was this patch tested?

Earlier commands above are historical evidence, where present. Current rebase validation passed git diff --check; fresh hosted CI is running. Focused Java validation is reported separately when complete.

Validated repair head `08439e84` (2026-09-19)

The concurrency regression passes in a Java 17/Maven 3.9.15 container (1 test, no failures or errors).

mvn -B -ntp -pl hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager -am -Dtest=TestFSPreemptionThread -Dsurefire.failIfNoSpecifiedTests=false -Dmaven.test.failure.ignore=false test

The reactor completed successfully and Surefire reported 1 tests, 0 failures, 0 errors, 0 skipped. git diff --check also passes. Hosted CI for this head remains separate.

deepujain · 2026-03-27T06:52:35Z

Rebased on trunk and made the preemption container tracker thread-safe. Added a regression test for concurrent add/iterate access in the fair scheduler helper. Local Maven validation hit unrelated repository/network dependency issues in this environment, so I’m ready for CI.

hadoop-yetus · 2026-03-27T11:21:14Z

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 52s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 1s		codespell was not available.
+0 🆗	detsecrets	0m 1s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	48m 11s		trunk passed
+1 💚	compile	1m 27s		trunk passed with JDK Ubuntu-21.0.10+7-Ubuntu-124.04
+1 💚	compile	1m 48s		trunk passed with JDK Ubuntu-17.0.18+8-Ubuntu-124.04.1
+1 💚	checkstyle	1m 53s		trunk passed
+1 💚	mvnsite	1m 33s		trunk passed
+1 💚	javadoc	1m 16s		trunk passed with JDK Ubuntu-21.0.10+7-Ubuntu-124.04
+1 💚	javadoc	1m 13s		trunk passed with JDK Ubuntu-17.0.18+8-Ubuntu-124.04.1
+1 💚	spotbugs	2m 51s		trunk passed
+1 💚	shadedclient	35m 50s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 59s		the patch passed
+1 💚	compile	0m 55s		the patch passed with JDK Ubuntu-21.0.10+7-Ubuntu-124.04
+1 💚	javac	0m 55s		the patch passed
+1 💚	compile	1m 1s		the patch passed with JDK Ubuntu-17.0.18+8-Ubuntu-124.04.1
+1 💚	javac	1m 1s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 59s		hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager: The patch generated 0 new + 3 unchanged - 1 fixed = 3 total (was 4)
+1 💚	mvnsite	1m 7s		the patch passed
+1 💚	javadoc	0m 45s		the patch passed with JDK Ubuntu-21.0.10+7-Ubuntu-124.04
+1 💚	javadoc	0m 46s		the patch passed with JDK Ubuntu-17.0.18+8-Ubuntu-124.04.1
+1 💚	spotbugs	2m 31s		the patch passed
+1 💚	shadedclient	37m 49s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	123m 16s		hadoop-yarn-server-resourcemanager in the patch passed.
+1 💚	asflicense	0m 47s		The patch does not generate ASF License warnings.
		267m 36s

Subsystem	Report/Notes
Docker	ClientAPI=1.54 ServerAPI=1.54 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/1/artifact/out/Dockerfile
GITHUB PR	#8389
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 1b26ad5c4528 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 / `9e5b935`
Default Java	Ubuntu-17.0.18+8-Ubuntu-124.04.1
Multi-JDK versions	/usr/lib/jvm/java-21-openjdk-amd64:Ubuntu-21.0.10+7-Ubuntu-124.04 /usr/lib/jvm/java-17-openjdk-amd64:Ubuntu-17.0.18+8-Ubuntu-124.04.1
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/1/testReport/
Max. process+thread count	946 (vs. ulimit of 10000)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/1/console
versions	git=2.43.0 maven=3.9.11 spotbugs=4.9.7
Powered by	Apache Yetus 0.14.1 https://yetus.apache.org

This message was automatically generated.

deepujain · 2026-05-27T15:59:37Z

CI is green on the current head, and this one still has not had a human review. @adoroszlai, when you have a moment, could you please take a look? Happy to make any follow-up changes.

adoroszlai · 2026-05-27T16:05:21Z

Thanks @deepujain for the patch, but I am not familiar with YARN/MapReduce at all. Please try to find other reviewers.

deepujain · 2026-06-14T16:17:36Z

CI is still green on the current head. @adoroszlai already noted this needs a YARN reviewer, so @wangda @sunilg, when you have a moment, could you please take a look? Happy to make any follow-up changes.

deepujain · 2026-06-26T15:00:15Z

CI is still green on the current head, and this one is still waiting on a YARN review. @wangda @sunilg, when you have a moment, could you please take a look? Happy to make any follow-up changes.

deepujain · 2026-07-06T10:36:46Z

CI is still green on the current head, and this one is still waiting on YARN review. @wangda @sunilg, when you have a moment, could you please take a look? Happy to make any follow-up changes.

deepujain · 2026-07-10T03:04:13Z

CI is still green on the current head, and this one is still waiting on a YARN review. @wangda @sunilg, when you have a moment, could you please take a look? Happy to make any follow-up changes.

deepujain · 2026-07-20T11:33:20Z

CI is still green on the current head, and this one is still waiting on a YARN review as of July 20, 2026. @wangda @sunilg, when you have a moment, could you please take a look? Happy to make any follow-up changes.

deepujain · 2026-07-26T05:06:39Z

CI is still green on the current head as of July 26, 2026, and this one is still waiting on YARN review. @wangda @sunilg, when you have a moment, could you please take a look? Happy to make any follow-up changes.

deepujain · 2026-07-29T06:09:26Z

CI is still green on the current head as of July 29, 2026, and this one is still waiting on YARN review. @wangda @sunilg, when you have a moment, could you please take a look? Happy to make any follow-up changes.

deepujain · 2026-08-04T07:34:59Z

CI is still green on the current head as of August 4, 2026, and this one is still waiting on a YARN review. @wangda @sunilg, when you have a moment, could you please take a look? Happy to make any follow-up changes.

deepujain · 2026-08-07T12:42:42Z

CI is still green on the current head as of August 7, 2026, and this one is still waiting on a YARN review. @wangda @sunilg, when you have a moment, could you please take a look? Happy to make any follow-up changes.

deepujain · 2026-08-10T05:09:03Z

CI is still green on the current head as of August 10, 2026, and this one is still waiting on a YARN review. @wangda @sunilg, when you have a moment, could you please take a look? Happy to make any follow-up changes.

hadoop-yetus · 2026-09-01T20:29:42Z

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	20m 21s		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.
+1 💚	test4tests	0m 0s		The patch appears to include 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	46m 28s		trunk passed
+1 💚	compile	1m 27s		trunk passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	compile	1m 26s		trunk passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	checkstyle	1m 25s		trunk passed
+1 💚	mvnsite	1m 33s		trunk passed
+1 💚	javadoc	1m 19s		trunk passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javadoc	1m 15s		trunk passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	spotbugs	2m 37s		trunk passed
+1 💚	shadedclient	30m 11s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 59s		the patch passed
+1 💚	compile	0m 54s		the patch passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javac	0m 54s		the patch passed
+1 💚	compile	0m 57s		the patch passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	javac	0m 57s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 49s		hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager: The patch generated 0 new + 3 unchanged - 1 fixed = 3 total (was 4)
+1 💚	mvnsite	1m 2s		the patch passed
+1 💚	javadoc	0m 45s		the patch passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javadoc	0m 45s		the patch passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	spotbugs	2m 15s		the patch passed
+1 💚	shadedclient	29m 42s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	116m 47s		hadoop-yarn-server-resourcemanager in the patch passed.
+1 💚	asflicense	0m 35s		The patch does not generate ASF License warnings.
		263m 43s

Subsystem	Report/Notes
Docker	ClientAPI=1.55 ServerAPI=1.55 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/2/artifact/out/Dockerfile
GITHUB PR	#8389
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 36bc9b96c3ae 5.15.0-190-generic #200-Ubuntu SMP Fri Aug 7 15:06:04 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / `29ca07c`
Default Java	Ubuntu-17.0.20+8-1-24.04-Ubuntu
Multi-JDK versions	/usr/lib/jvm/java-21-openjdk-amd64:Ubuntu-21.0.12+8-1-24.04-Ubuntu /usr/lib/jvm/java-17-openjdk-amd64:Ubuntu-17.0.20+8-1-24.04-Ubuntu
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/2/testReport/
Max. process+thread count	965 (vs. ulimit of 10000)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/2/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.

deepujain · 2026-09-01T21:30:05Z

Hi @pan3793 @steveloughran @slfan1989, YARN-11851 has been waiting since March. Branch is current on trunk and the preemption thread fix has unit tests. Would appreciate a review when you have a few minutes.

hadoop-yetus · 2026-09-03T21:59:49Z

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	1m 4s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 1s		codespell was not available.
+0 🆗	detsecrets	0m 1s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	43m 30s		trunk passed
+1 💚	compile	1m 14s		trunk passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	compile	1m 21s		trunk passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	checkstyle	1m 20s		trunk passed
+1 💚	mvnsite	1m 32s		trunk passed
+1 💚	javadoc	1m 18s		trunk passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javadoc	1m 12s		trunk passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	spotbugs	2m 33s		trunk passed
+1 💚	shadedclient	32m 9s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 58s		the patch passed
+1 💚	compile	0m 55s		the patch passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javac	0m 55s		the patch passed
+1 💚	compile	0m 57s		the patch passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	javac	0m 57s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 51s		hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager: The patch generated 0 new + 3 unchanged - 1 fixed = 3 total (was 4)
+1 💚	mvnsite	1m 1s		the patch passed
+1 💚	javadoc	0m 46s		the patch passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javadoc	0m 46s		the patch passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	spotbugs	2m 15s		the patch passed
+1 💚	shadedclient	29m 33s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	114m 19s		hadoop-yarn-server-resourcemanager in the patch passed.
+1 💚	asflicense	0m 36s		The patch does not generate ASF License warnings.
		240m 23s

Subsystem	Report/Notes
Docker	ClientAPI=1.55 ServerAPI=1.55 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/3/artifact/out/Dockerfile
GITHUB PR	#8389
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux a163f83f0ea2 5.15.0-190-generic #200-Ubuntu SMP Fri Aug 7 15:06:04 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / `cfc99bf`
Default Java	Ubuntu-17.0.20+8-1-24.04-Ubuntu
Multi-JDK versions	/usr/lib/jvm/java-21-openjdk-amd64:Ubuntu-21.0.12+8-1-24.04-Ubuntu /usr/lib/jvm/java-17-openjdk-amd64:Ubuntu-17.0.20+8-1-24.04-Ubuntu
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/3/testReport/
Max. process+thread count	965 (vs. ulimit of 10000)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/3/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.

deepujain · 2026-09-04T16:01:36Z

Rebased cleanly onto current trunk at 706d4dcb. git diff --check apache/trunk...origin/YARN-11851-threadsafe-hashmap passes. This host currently has no Java runtime or Maven, so I could not rerun the focused Maven test here; fresh Build and Jenkins checks are queued on 0816b8fe. Ready for CI.

hadoop-yetus · 2026-09-04T20:01:57Z

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	1m 3s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 1s		codespell was not available.
+0 🆗	detsecrets	0m 1s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	43m 26s		trunk passed
+1 💚	compile	1m 23s		trunk passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	compile	1m 28s		trunk passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	checkstyle	1m 23s		trunk passed
+1 💚	mvnsite	1m 33s		trunk passed
+1 💚	javadoc	1m 20s		trunk passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javadoc	1m 13s		trunk passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	spotbugs	2m 40s		trunk passed
+1 💚	shadedclient	30m 31s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 57s		the patch passed
+1 💚	compile	0m 57s		the patch passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javac	0m 57s		the patch passed
+1 💚	compile	0m 59s		the patch passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	javac	0m 59s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 49s		hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager: The patch generated 0 new + 3 unchanged - 1 fixed = 3 total (was 4)
+1 💚	mvnsite	1m 2s		the patch passed
+1 💚	javadoc	0m 47s		the patch passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javadoc	0m 46s		the patch passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	spotbugs	2m 16s		the patch passed
+1 💚	shadedclient	29m 35s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	118m 4s		hadoop-yarn-server-resourcemanager in the patch passed.
+1 💚	asflicense	0m 37s		The patch does not generate ASF License warnings.
		242m 47s

Subsystem	Report/Notes
Docker	ClientAPI=1.56 ServerAPI=1.56 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/4/artifact/out/Dockerfile
GITHUB PR	#8389
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 01c927bbbe13 5.15.0-190-generic #200-Ubuntu SMP Fri Aug 7 15:06:04 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / `0816b8f`
Default Java	Ubuntu-17.0.20+8-1-24.04-Ubuntu
Multi-JDK versions	/usr/lib/jvm/java-21-openjdk-amd64:Ubuntu-21.0.12+8-1-24.04-Ubuntu /usr/lib/jvm/java-17-openjdk-amd64:Ubuntu-17.0.20+8-1-24.04-Ubuntu
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/4/testReport/
Max. process+thread count	950 (vs. ulimit of 10000)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/4/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.

deepujain · 2026-09-19T04:59:32Z

Rebased onto trunk a3febb25 and pushed 08439e84 to the fork. The concurrency regression passes in a Java 17/Maven 3.9.15 container (1 test, no failures or errors). git diff --check passes; fresh hosted CI is running.

hadoop-yetus · 2026-09-19T09:10:22Z

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	19m 28s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 1s		codespell was not available.
+0 🆗	detsecrets	0m 1s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	42m 50s		trunk passed
+1 💚	compile	1m 27s		trunk passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	compile	1m 30s		trunk passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	checkstyle	1m 23s		trunk passed
+1 💚	mvnsite	1m 34s		trunk passed
+1 💚	javadoc	1m 22s		trunk passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javadoc	1m 18s		trunk passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	spotbugs	2m 38s		trunk passed
+1 💚	shadedclient	30m 27s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 57s		the patch passed
+1 💚	compile	0m 56s		the patch passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javac	0m 56s		the patch passed
+1 💚	compile	0m 59s		the patch passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	javac	0m 59s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 50s		hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager: The patch generated 0 new + 3 unchanged - 1 fixed = 3 total (was 4)
+1 💚	mvnsite	1m 1s		the patch passed
+1 💚	javadoc	0m 46s		the patch passed with JDK Ubuntu-21.0.12+8-1-24.04-Ubuntu
+1 💚	javadoc	0m 46s		the patch passed with JDK Ubuntu-17.0.20+8-1-24.04-Ubuntu
+1 💚	spotbugs	2m 13s		the patch passed
+1 💚	shadedclient	30m 18s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	114m 55s		hadoop-yarn-server-resourcemanager in the patch passed.
+1 💚	asflicense	0m 37s		The patch does not generate ASF License warnings.
		258m 18s

Subsystem	Report/Notes
Docker	ClientAPI=1.56 ServerAPI=1.56 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/5/artifact/out/Dockerfile
GITHUB PR	#8389
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 8b77d35af40b 5.15.0-190-generic #200-Ubuntu SMP Fri Aug 7 15:06:04 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / `08439e8`
Default Java	Ubuntu-17.0.20+8-1-24.04-Ubuntu
Multi-JDK versions	/usr/lib/jvm/java-21-openjdk-amd64:Ubuntu-21.0.12+8-1-24.04-Ubuntu /usr/lib/jvm/java-17-openjdk-amd64:Ubuntu-17.0.20+8-1-24.04-Ubuntu
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/5/testReport/
Max. process+thread count	919 (vs. ulimit of 10000)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8389/5/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.

github-actions Bot added YARN trunk labels Mar 27, 2026

deepujain force-pushed the YARN-11851-threadsafe-hashmap branch from 9e5b935 to 29ca07c Compare September 1, 2026 16:04

deepujain force-pushed the YARN-11851-threadsafe-hashmap branch from 29ca07c to cfc99bf Compare September 3, 2026 17:58

deepujain force-pushed the YARN-11851-threadsafe-hashmap branch from cfc99bf to 0816b8f Compare September 4, 2026 15:57

YARN-11851. Make preemptable container tracking thread-safe.

08439e8

deepujain force-pushed the YARN-11851-threadsafe-hashmap branch from 0816b8f to 08439e8 Compare September 19, 2026 04:50

Conversation

deepujain commented Mar 27, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

For code changes:

AI Tooling

How was this patch tested?

Validated repair head 08439e84 (2026-09-19)

Uh oh!

deepujain commented Mar 27, 2026

Uh oh!

hadoop-yetus commented Mar 27, 2026

Uh oh!

deepujain commented May 27, 2026

Uh oh!

adoroszlai commented May 27, 2026

Uh oh!

deepujain commented Jun 14, 2026

Uh oh!

deepujain commented Jun 26, 2026

Uh oh!

deepujain commented Jul 6, 2026

Uh oh!

deepujain commented Jul 10, 2026

Uh oh!

deepujain commented Jul 20, 2026

Uh oh!

deepujain commented Jul 26, 2026

Uh oh!

deepujain commented Jul 29, 2026

Uh oh!

deepujain commented Aug 4, 2026

Uh oh!

deepujain commented Aug 7, 2026

Uh oh!

deepujain commented Aug 10, 2026

Uh oh!

hadoop-yetus commented Sep 1, 2026

Uh oh!

deepujain commented Sep 1, 2026

Uh oh!

hadoop-yetus commented Sep 3, 2026

Uh oh!

deepujain commented Sep 4, 2026

Uh oh!

hadoop-yetus commented Sep 4, 2026

Uh oh!

deepujain commented Sep 19, 2026

Uh oh!

hadoop-yetus commented Sep 19, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

3 participants

deepujain commented Mar 27, 2026 •

edited

Loading

Validated repair head `08439e84` (2026-09-19)