PHOENIX-6142: Make DDL operations resilient to orphan parent->child linking rows in SYSTEM.CHILD_LINK

[ChinmaySKulkarni]

No description provided.

[ChinmaySKulkarni]

Please review @yanxinyi @jpisaac @gjacoby126 @kadirozde @twdsilva

[twdsilva]

+1, nice work thanks for fixing all these scenarios.

[ChinmaySKulkarni]

Thanks for the review @twdsilva!
@kadirozde @gjacoby126 @jpisaac @yanxinyi as discussed offline, I have written a design doc outlining my approach: PHOENIX-6142 Design Doc. Please take a look. It would be great to get your reviews as well. The push I did after Thomas's review does not contain any code changes. They are just extra comments.

[stoty]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 30s	Docker mode activated.
		_ Prechecks _
+1 💚	dupname	0m 0s	No case conflicting files found.
+1 💚	hbaseanti	0m 0s	Patch does not have any anti-patterns.
+1 💚	@author	0m 0s	The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s	The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
		_ 4.x Compile Tests _
+1 💚	mvninstall	26m 21s	4.x passed
+1 💚	compile	0m 54s	4.x passed
+1 💚	checkstyle	3m 2s	4.x passed
+1 💚	javadoc	0m 43s	4.x passed
+0 🆗	spotbugs	2m 50s	phoenix-core in 4.x has 956 extant spotbugs warnings.
		_ Patch Compile Tests _
+1 💚	mvninstall	22m 49s	the patch passed
+1 💚	compile	0m 56s	the patch passed
+1 💚	javac	0m 56s	the patch passed
-1 ❌	checkstyle	3m 7s	phoenix-core: The patch generated 417 new + 5804 unchanged - 345 fixed = 6221 total (was 6149)
-1 ❌	whitespace	0m 0s	The patch 1 line(s) with tabs.
-1 ❌	javadoc	0m 43s	phoenix-core generated 1 new + 99 unchanged - 1 fixed = 100 total (was 100)
-1 ❌	spotbugs	3m 6s	phoenix-core generated 1 new + 953 unchanged - 3 fixed = 954 total (was 956)
		_ Other Tests _
-1 ❌	unit	125m 23s	phoenix-core in the patch failed.
+1 💚	asflicense	0m 38s	The patch does not generate ASF License warnings.
		193m 48s

Reason	Tests
FindBugs	module:phoenix-core
	Found reliance on default encoding in org.apache.phoenix.util.ViewUtil.findImmediateRelatedViews(Table, byte[], byte[], byte[], PTable$LinkType, long):in org.apache.phoenix.util.ViewUtil.findImmediateRelatedViews(Table, byte[], byte[], byte[], PTable$LinkType, long): String.getBytes() At ViewUtil.java:[line 287]
Failed junit tests	phoenix.end2end.PhoenixRuntimeIT
	phoenix.end2end.ToCharFunctionIT
	phoenix.end2end.DeleteIT
	phoenix.end2end.IndexToolForNonTxGlobalIndexIT
	phoenix.end2end.UpsertSelectIT
	phoenix.end2end.index.ImmutableIndexExtendedIT
	phoenix.end2end.DropSchemaIT
	phoenix.end2end.index.IndexMaintenanceIT
	phoenix.end2end.OrphanViewToolIT

Subsystem	Report/Notes
Docker	ClientAPI=1.40 ServerAPI=1.40 base: https://ci-hadoop.apache.org/job/Phoenix/job/Phoenix-PreCommit-GitHub-PR/job/PR-903/6/artifact/yetus-general-check/output/Dockerfile
GITHUB PR	#903
JIRA Issue	PHOENIX-6142
Optional Tests	dupname asflicense javac javadoc unit spotbugs hbaseanti checkstyle compile
uname	Linux c35418f930ab 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev/phoenix-personality.sh
git revision	4.x / 264310b
Default Java	Private Build-1.8.0_242-8u242-b08-0ubuntu3~16.04-b08
checkstyle	https://ci-hadoop.apache.org/job/Phoenix/job/Phoenix-PreCommit-GitHub-PR/job/PR-903/6/artifact/yetus-general-check/output/diff-checkstyle-phoenix-core.txt
whitespace	https://ci-hadoop.apache.org/job/Phoenix/job/Phoenix-PreCommit-GitHub-PR/job/PR-903/6/artifact/yetus-general-check/output/whitespace-tabs.txt
javadoc	https://ci-hadoop.apache.org/job/Phoenix/job/Phoenix-PreCommit-GitHub-PR/job/PR-903/6/artifact/yetus-general-check/output/diff-javadoc-javadoc-phoenix-core.txt
spotbugs	https://ci-hadoop.apache.org/job/Phoenix/job/Phoenix-PreCommit-GitHub-PR/job/PR-903/6/artifact/yetus-general-check/output/new-spotbugs-phoenix-core.html
unit	https://ci-hadoop.apache.org/job/Phoenix/job/Phoenix-PreCommit-GitHub-PR/job/PR-903/6/artifact/yetus-general-check/output/patch-unit-phoenix-core.txt
Test Results	https://ci-hadoop.apache.org/job/Phoenix/job/Phoenix-PreCommit-GitHub-PR/job/PR-903/6/testReport/
Max. process+thread count	6414 (vs. ulimit of 30000)
modules	C: phoenix-core U: phoenix-core
Console output	https://ci-hadoop.apache.org/job/Phoenix/job/Phoenix-PreCommit-GitHub-PR/job/PR-903/6/console
versions	git=2.7.4 maven=3.3.9 spotbugs=4.1.3
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[ChinmaySKulkarni]

None of the tests that failed in the build above are failing locally.
Re-running the preCommit manually to get another run.

[jpisaac]

+1 LGTM, except a request for a couple of more tests.

[ChinmaySKulkarni]

Thanks for the review @jpisaac , I will modify the test and commit after a successful preCommit