YARN-10720. (branch-3.2) YARN WebAppProxyServlet should support connection timeout…

[aajisaka]

… to prevent proxy server from hanging. Contributed by Qi Zhu.

(cherry picked from commit a0deda1)

Conflicts:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/WebAppProxyServlet.java
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/test/java/org/apache/hadoop/yarn/server/webproxy/TestWebAppProxyServlet.java

Description of PR

Backport YARN-10720 to branch-3.2. I had to fix the conflicts by partiallly backporting YARN-8448, so I want to run precommit job for this change. If it ran successfully, I will push it.

How was this patch tested?

Compiled and ran TestWebAppProxyServlet locally.

For code changes:

• Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
• n/a Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation?
• n/a If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?
• n/a If applicable, have you updated the LICENSE, LICENSE-binary, NOTICE-binary files?

[hadoop-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	11m 25s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell 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.
			_ branch-3.2 Compile Tests _
+0 🆗	mvndep	3m 21s		Maven dependency ordering for branch
+1 💚	mvninstall	26m 29s		branch-3.2 passed
+1 💚	compile	7m 46s		branch-3.2 passed
+1 💚	checkstyle	1m 19s		branch-3.2 passed
+1 💚	mvnsite	2m 3s		branch-3.2 passed
+1 💚	javadoc	1m 56s		branch-3.2 passed
+1 💚	spotbugs	4m 30s		branch-3.2 passed
+1 💚	shadedclient	15m 13s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 23s		Maven dependency ordering for patch
+1 💚	mvninstall	1m 39s		the patch passed
+1 💚	compile	6m 54s		the patch passed
+1 💚	javac	6m 54s		hadoop-yarn-project_hadoop-yarn generated 0 new + 192 unchanged - 10 fixed = 192 total (was 202)
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	1m 11s		the patch passed
+1 💚	mvnsite	1m 53s		the patch passed
+1 💚	xml	0m 1s		The patch has no ill-formed XML file.
+1 💚	javadoc	1m 46s		the patch passed
+1 💚	spotbugs	4m 48s		the patch passed
+1 💚	shadedclient	16m 1s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	0m 48s		hadoop-yarn-api in the patch passed.
+1 💚	unit	4m 2s		hadoop-yarn-common in the patch passed.
+1 💚	unit	0m 53s		hadoop-yarn-server-web-proxy in the patch passed.
+1 💚	asflicense	0m 42s		The patch does not generate ASF License warnings.
		117m 36s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4102/1/artifact/out/Dockerfile
GITHUB PR	#4102
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell xml
uname	Linux 9f85641c1b81 4.15.0-166-generic #174-Ubuntu SMP Wed Dec 8 19:07:44 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	branch-3.2 / dbeb41b
Default Java	Private Build-1.8.0_312-8u312-b07-0ubuntu1~18.04-b07
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4102/1/testReport/
Max. process+thread count	334 (vs. ulimit of 5500)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy U: hadoop-yarn-project/hadoop-yarn
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4102/1/console
versions	git=2.17.1 maven=3.6.0 spotbugs=4.2.2
Powered by	Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org

This message was automatically generated.