HDFS-17818. Fix serial fsimage transfer during checkpoint with multiple namenodes #7862

lfxy · 2025-08-08T11:07:05Z

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.
ExecutorService executor = new ThreadPoolExecutor(0, activeNNAddresses.size(), 100, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<Runnable>(activeNNAddresses.size()), uploadThreadFactory);

hadoop-yetus · 2025-08-08T14:23:36Z

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hadoop-yetus · 2025-08-09T18:06:49Z

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lfxy · 2025-08-20T11:07:17Z

@Hexiaoqiao @ayushtkn @tomscut Do you think that uploading fsimage in checkpoint with observer namenode should be changed from serial to parallel?
In our production cluster, there are one active, one standby, and two oberver namenodes. The serial uploading takes 40 minutes longer than the parallel operation.

hadoop-yetus · 2025-10-10T14:43:43Z

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hadoop-yetus · 2025-10-10T17:19:39Z

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hadoop-yetus · 2025-10-11T07:21:27Z

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			_ Other Tests _
-1 ❌	unit	0m 34s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+1 💚	asflicense	0m 21s		The patch does not generate ASF License warnings.
		74m 41s

Subsystem	Report/Notes
Docker	ClientAPI=1.51 ServerAPI=1.51 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/5/artifact/out/Dockerfile
GITHUB PR	#7862
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 648ee8bae0b2 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 / `5d88e72`
Default Java	Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/5/testReport/
Max. process+thread count	546 (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-7862/5/console
versions	git=2.25.1 maven=3.9.11 spotbugs=4.2.2
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hadoop-yetus · 2025-10-11T07:32:02Z

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 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	35m 15s		trunk passed
+1 💚	compile	0m 42s		trunk passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	compile	0m 36s		trunk passed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
+1 💚	checkstyle	0m 26s		trunk passed
+1 💚	mvnsite	0m 42s		trunk passed
+1 💚	javadoc	0m 36s		trunk passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	1m 1s		trunk passed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
+1 💚	spotbugs	1m 45s		trunk passed
+1 💚	shadedclient	24m 0s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
-1 ❌	mvninstall	0m 33s	/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
-1 ❌	compile	0m 36s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04.
-1 ❌	javac	0m 36s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04.
-1 ❌	compile	0m 32s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09.txt	hadoop-hdfs in the patch failed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09.
-1 ❌	javac	0m 32s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09.txt	hadoop-hdfs in the patch failed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09.
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 23s		the patch passed
-1 ❌	mvnsite	0m 34s	/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+1 💚	javadoc	0m 27s		the patch passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	1m 2s		the patch passed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
-1 ❌	spotbugs	0m 32s	/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
-1 ❌	shadedclient	8m 23s		patch has errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	0m 34s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+1 💚	asflicense	0m 22s		The patch does not generate ASF License warnings.
		76m 38s

Subsystem	Report/Notes
Docker	ClientAPI=1.51 ServerAPI=1.51 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/6/artifact/out/Dockerfile
GITHUB PR	#7862
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 76f502dc2be5 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 / `bd9a615`
Default Java	Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/6/testReport/
Max. process+thread count	546 (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-7862/6/console
versions	git=2.25.1 maven=3.9.11 spotbugs=4.2.2
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hadoop-yetus · 2025-10-11T14:03:45Z

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 20s		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	29m 47s		trunk passed
+1 💚	compile	0m 45s		trunk passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	compile	0m 38s		trunk passed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
+1 💚	checkstyle	0m 27s		trunk passed
+1 💚	mvnsite	0m 44s		trunk passed
+1 💚	javadoc	0m 35s		trunk passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	1m 6s		trunk passed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
+1 💚	spotbugs	1m 41s		trunk passed
+1 💚	shadedclient	21m 20s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 33s		the patch passed
+1 💚	compile	0m 38s		the patch passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javac	0m 38s		the patch passed
+1 💚	compile	0m 35s		the patch passed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
+1 💚	javac	0m 35s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 22s		the patch passed
+1 💚	mvnsite	0m 40s		the patch passed
+1 💚	javadoc	0m 29s		the patch passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 57s		the patch passed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
+1 💚	spotbugs	1m 43s		the patch passed
+1 💚	shadedclient	21m 24s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	193m 24s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 28s		The patch does not generate ASF License warnings.
		278m 2s

Reason	Tests
Failed junit tests	hadoop.tools.TestHdfsConfigFields

Subsystem	Report/Notes
Docker	ClientAPI=1.51 ServerAPI=1.51 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/7/artifact/out/Dockerfile
GITHUB PR	#7862
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 2a66045099ad 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 / `10ae4be`
Default Java	Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/7/testReport/
Max. process+thread count	4053 (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-7862/7/console
versions	git=2.25.1 maven=3.9.11 spotbugs=4.2.2
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hadoop-yetus · 2025-10-11T19:23:31Z

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 20s		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 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	32m 53s		trunk passed
+1 💚	compile	0m 46s		trunk passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	compile	0m 40s		trunk passed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
+1 💚	checkstyle	0m 32s		trunk passed
+1 💚	mvnsite	0m 43s		trunk passed
+1 💚	javadoc	0m 36s		trunk passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	1m 6s		trunk passed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
+1 💚	spotbugs	1m 36s		trunk passed
+1 💚	shadedclient	21m 33s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 34s		the patch passed
+1 💚	compile	0m 38s		the patch passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javac	0m 38s		the patch passed
+1 💚	compile	0m 35s		the patch passed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
+1 💚	javac	0m 35s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 22s		the patch passed
+1 💚	mvnsite	0m 39s		the patch passed
+1 💚	javadoc	0m 29s		the patch passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	1m 0s		the patch passed with JDK Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
+1 💚	spotbugs	1m 36s		the patch passed
+1 💚	shadedclient	22m 7s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	193m 52s		hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 30s		The patch does not generate ASF License warnings.
		282m 54s

Subsystem	Report/Notes
Docker	ClientAPI=1.51 ServerAPI=1.51 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/8/artifact/out/Dockerfile
GITHUB PR	#7862
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets xmllint
uname	Linux 83f253028502 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 / `d577987`
Default Java	Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_452-8u452-ga~~us1-0ubuntu1~~20.04-b09
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7862/8/testReport/
Max. process+thread count	3607 (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-7862/8/console
versions	git=2.25.1 maven=3.9.11 spotbugs=4.2.2
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hadoop-yetus · 2025-10-14T12:37:01Z

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 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.
+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 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	27m 20s		trunk passed
+1 💚	compile	0m 44s		trunk passed
+1 💚	checkstyle	0m 28s		trunk passed
+1 💚	mvnsite	0m 48s		trunk passed
+1 💚	javadoc	0m 41s		trunk passed
-1 ❌	spotbugs	0m 52s	/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in trunk failed.
+1 💚	shadedclient	17m 59s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 42s		the patch passed
+1 💚	compile	0m 41s		the patch passed
+1 💚	javac	0m 41s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 23s		the patch passed
+1 💚	mvnsite	0m 44s		the patch passed
-1 ❌	javadoc	0m 33s	/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 ❌	spotbugs	0m 46s	/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+1 💚	shadedclient	18m 55s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	172m 21s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+1 💚	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	#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 / `8258d01`
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
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hadoop-yetus · 2025-10-22T14:52:07Z

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	8m 35s		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 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	21m 33s		trunk passed
+1 💚	compile	0m 46s		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 28s		trunk passed
+1 💚	mvnsite	0m 49s		trunk passed
+1 💚	javadoc	0m 41s		trunk passed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 39s		trunk passed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
-1 ❌	spotbugs	1m 58s	/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs-warnings.html	hadoop-hdfs-project/hadoop-hdfs in trunk has 291 extant spotbugs warnings.
+1 💚	shadedclient	15m 20s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 41s		the patch passed
+1 💚	compile	0m 39s		the patch passed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04
+1 💚	javac	0m 39s		the patch passed
+1 💚	compile	0m 40s		the patch passed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
+1 💚	javac	0m 40s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 22s		the patch passed
+1 💚	mvnsite	0m 44s		the patch passed
-1 ❌	javadoc	0m 34s	/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 3 new + 9997 unchanged - 3 fixed = 10000 total (was 10000)
-1 ❌	javadoc	0m 34s	/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 3 new + 9671 unchanged - 0 fixed = 9674 total (was 9671)
+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	175m 54s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 24s		The patch does not generate ASF License warnings.
		248m 45s

Reason	Tests
Failed junit tests	hadoop.hdfs.server.balancer.TestBalancerWithHANameNodes
	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-7862/15/artifact/out/Dockerfile
GITHUB PR	#7862
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets xmllint
uname	Linux 42a1e14279de 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 / `f766baa`
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-7862/15/testReport/
Max. process+thread count	4699 (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-7862/15/console
versions	git=2.25.1 maven=3.9.11 spotbugs=4.9.7
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github-actions bot added HDFS trunk labels Aug 8, 2025

zeekling approved these changes Aug 10, 2025

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lfxy force-pushed the feature/HDFS-17818 branch from 79408b5 to 1a62b21 Compare October 10, 2025 16:08

lfxy force-pushed the feature/HDFS-17818 branch 2 times, most recently from 5d88e72 to bd9a615 Compare October 11, 2025 06:14

lfxy force-pushed the feature/HDFS-17818 branch from bd9a615 to 10ae4be Compare October 11, 2025 09:24

lfxy force-pushed the feature/HDFS-17818 branch from 10ae4be to d577987 Compare October 11, 2025 14:39

lfxy force-pushed the feature/HDFS-17818 branch 2 times, most recently from 2c6c308 to 8258d01 Compare October 14, 2025 08:35

lfxy force-pushed the feature/HDFS-17818 branch 4 times, most recently from afadc8e to abb5732 Compare October 22, 2025 03:18

lfxy added 3 commits October 22, 2025 18:41

Fix serial fsimage transfer during checkpoint with multiple namenodes

bd8b61c

Add UT for thread count check

a7e52d8

Add config to enable parallel upload fsimage to multiple other namenodes

f766baa

lfxy force-pushed the feature/HDFS-17818 branch from abb5732 to f766baa Compare October 22, 2025 10:42

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HDFS-17818. Fix serial fsimage transfer during checkpoint with multiple namenodes #7862

HDFS-17818. Fix serial fsimage transfer during checkpoint with multiple namenodes #7862

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HDFS-17818. Fix serial fsimage transfer during checkpoint with multiple namenodes #7862

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