HADOOP-18144: getTrashRoot in ViewFileSystem should return a path in ViewFS

[xinglin]

This is a cherry-pick commit from trunk to branch-3.3 for the viewFS getTrashRoot work.

Signed-off-by: Owen O'Malley oomalley@linkedin.com
(cherry picked from commit 8b8158f)

[xinglin]

Hi @omalley,

Here is the backport pull request. Appreciated if you could take a look!

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	10m 1s		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 4 new or modified test files.
			_ branch-3.3 Compile Tests _
+0 🆗	mvndep	3m 24s		Maven dependency ordering for branch
+1 💚	mvninstall	31m 18s		branch-3.3 passed
+1 💚	compile	18m 12s		branch-3.3 passed
+1 💚	checkstyle	2m 50s		branch-3.3 passed
+1 💚	mvnsite	3m 7s		branch-3.3 passed
+1 💚	javadoc	3m 8s		branch-3.3 passed
+1 💚	spotbugs	6m 31s		branch-3.3 passed
+1 💚	shadedclient	30m 12s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 55s		Maven dependency ordering for patch
+1 💚	mvninstall	2m 6s		the patch passed
+1 💚	compile	17m 21s		the patch passed
+1 💚	javac	17m 21s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	2m 50s		the patch passed
+1 💚	mvnsite	2m 58s		the patch passed
+1 💚	javadoc	3m 7s		the patch passed
+1 💚	spotbugs	6m 5s		the patch passed
+1 💚	shadedclient	27m 41s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	17m 11s		hadoop-common in the patch passed.
-1 ❌	unit	207m 44s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 57s		The patch does not generate ASF License warnings.
		394m 40s

Reason	Tests
Failed junit tests	hadoop.hdfs.server.namenode.ha.TestFailureToReadEdits
	hadoop.hdfs.tools.offlineImageViewer.TestOfflineImageViewer

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4123/1/artifact/out/Dockerfile
GITHUB PR	#4123
JIRA Issue	HADOOP-18144
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell
uname	Linux 5d782d25f6d6 4.15.0-163-generic #171-Ubuntu SMP Fri Nov 5 11:55:11 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	branch-3.3 / 442be08
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-4123/1/testReport/
Max. process+thread count	3143 (vs. ulimit of 5500)
modules	C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs U: .
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4123/1/console
versions	git=2.17.1 maven=3.6.0 spotbugs=4.2.2
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[omalley]

+1