HBASE-22399 Change default hadoop-two.version to 2.8.x and remove the…

[Apache9]

… 2.7.x hadoop checks

[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
0	reexec	257	Docker mode activated.
		_ Prechecks _
0	shelldocs	0	Shelldocs was not available.
+1	@author	0	The patch does not contain any @author tags.
-0	test4tests	0	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.
		_ master Compile Tests _
+1	mvninstall	253	master passed
+1	compile	161	master passed
+1	shadedjars	263	branch has no errors when building our shaded downstream artifacts.
+1	javadoc	159	master passed
		_ Patch Compile Tests _
+1	mvninstall	238	the patch passed
+1	compile	163	the patch passed
+1	javac	163	the patch passed
+1	shellcheck	1	There were no new shellcheck issues.
+1	whitespace	0	The patch has no whitespace issues.
+1	xml	1	The patch has no ill-formed XML file.
+1	shadedjars	261	patch has no errors when building our shaded downstream artifacts.
+1	hadoopcheck	485	Patch does not cause any errors with Hadoop 2.7.4 or 3.0.0.
+1	javadoc	163	the patch passed
		_ Other Tests _
-1	unit	617	root in the patch failed.
+1	asflicense	15	The patch does not generate ASF License warnings.
		3102

Reason	Tests
Failed junit tests	hadoop.hbase.client.TestReversedScannerCallable

Subsystem	Report/Notes
Docker	Client=17.05.0-ce Server=17.05.0-ce base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-232/1/artifact/out/Dockerfile
GITHUB PR	#232
Optional Tests	dupname asflicense shellcheck shelldocs javac javadoc unit shadedjars hadoopcheck xml compile
uname	Linux d5a505bc4fed 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 17:16:02 UTC 2018 x86_64 GNU/Linux
Build tool	maven
Personality	/testptch/patchprocess/precommit/personality/provided.sh
git revision	master / df27820
maven	version: Apache Maven 3.5.4 (1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T18:33:14Z)
Default Java	1.8.0_181
shellcheck	v0.4.4
unit	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-232/1/artifact/out/patch-unit-root.txt
Test Results	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-232/1/testReport/
Max. process+thread count	322 (vs. ulimit of 10000)
modules	C: . U: .
Console output	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-232/1/console
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[Apache9]

Seems the github integration can not recognize the build environment change... Let me check the failed UT and use the old way to submit the patch...