HBASE-22887 Fix HFileOutputFormat2 writer roll

[langdamao]

Issue detail: https://issues.apache.org/jira/browse/HBASE-22887

• writer roll only if wl.written is too long and previousRow is not equal.

• delete bool rollRequested because different writter roll independently, so they don't need to communicate.

Signed-off-by: langdamao lang--lang--lang@163.com

[Apache-HBase]

🎊 +1 overall

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		_ master Compile Tests _
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0	spotbugs	54	Used deprecated FindBugs config; considering switching to SpotBugs.
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		_ Patch Compile Tests _
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		_ Other Tests _
+1	unit	1392	hbase-mapreduce in the patch passed.
+1	asflicense	17	The patch does not generate ASF License warnings.
		4493

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/1/artifact/out/Dockerfile
GITHUB PR	#554
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		_ master Compile Tests _
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		_ Patch Compile Tests _
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		_ Other Tests _
-1	unit	1094	hbase-mapreduce in the patch failed.
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		3850

Reason	Tests
Failed junit tests	hadoop.hbase.snapshot.TestExportSnapshotNoCluster

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/2/artifact/out/Dockerfile
GITHUB PR	#554
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		4240

Reason	Tests
Failed junit tests	hadoop.hbase.snapshot.TestExportSnapshot
	hadoop.hbase.snapshot.TestExportSnapshotNoCluster

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/3/artifact/out/Dockerfile
GITHUB PR	#554
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0	reexec	38	Docker mode activated.
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		3997

Reason	Tests
Failed junit tests	hadoop.hbase.snapshot.TestExportSnapshotNoCluster

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/4/artifact/out/Dockerfile
GITHUB PR	#554
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		_ master Compile Tests _
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		_ Other Tests _
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		4301

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Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/5/artifact/out/Dockerfile
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		_ master Compile Tests _
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		_ Other Tests _
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		4113

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/6/artifact/out/Dockerfile
GITHUB PR	#554
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		5710

Reason	Tests
Failed junit tests	hadoop.hbase.snapshot.TestExportSnapshotNoCluster

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/7/artifact/out/Dockerfile
GITHUB PR	#554
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		4538

Reason	Tests
Failed junit tests	hadoop.hbase.snapshot.TestExportSnapshotNoCluster

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/8/artifact/out/Dockerfile
GITHUB PR	#554
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		_ Other Tests _
-1	unit	1059	hbase-mapreduce in the patch failed.
+1	asflicense	19	The patch does not generate ASF License warnings.
		3792

Reason	Tests
Failed junit tests	hadoop.hbase.snapshot.TestExportSnapshotNoCluster

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/9/artifact/out/Dockerfile
GITHUB PR	#554
Optional Tests	dupname asflicense javac javadoc unit spotbugs findbugs shadedjars hadoopcheck hbaseanti checkstyle compile
uname	Linux 36d1a6ba9823 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-slave/workspace/HBase-PreCommit-GitHub-PR_PR-554/out/precommit/personality/provided.sh
git revision	master / a5ef6b2
Default Java	1.8.0_181
unit	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/9/artifact/out/patch-unit-hbase-mapreduce.txt
Test Results	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/9/testReport/
Max. process+thread count	5405 (vs. ulimit of 10000)
modules	C: hbase-mapreduce U: hbase-mapreduce
Console output	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/9/console
versions	git=2.11.0 maven=2018-06-17T18:33:14Z) findbugs=3.1.11
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[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
0	reexec	42	Docker mode activated.
		_ Prechecks _
+1	dupname	0	No case conflicting files found.
+1	hbaseanti	0	Patch does not have any anti-patterns.
+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	359	master passed
+1	compile	29	master passed
+1	checkstyle	24	master passed
+1	shadedjars	293	branch has no errors when building our shaded downstream artifacts.
+1	javadoc	20	master passed
0	spotbugs	57	Used deprecated FindBugs config; considering switching to SpotBugs.
+1	findbugs	54	master passed
		_ Patch Compile Tests _
+1	mvninstall	314	the patch passed
+1	compile	27	the patch passed
+1	javac	27	the patch passed
+1	checkstyle	21	the patch passed
+1	whitespace	0	The patch has no whitespace issues.
+1	shadedjars	291	patch has no errors when building our shaded downstream artifacts.
+1	hadoopcheck	989	Patch does not cause any errors with Hadoop 2.8.5 2.9.2 or 3.1.2.
+1	javadoc	19	the patch passed
+1	findbugs	57	the patch passed
		_ Other Tests _
+1	unit	1135	hbase-mapreduce in the patch passed.
+1	asflicense	19	The patch does not generate ASF License warnings.
		4077

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/10/artifact/out/Dockerfile
GITHUB PR	#554
Optional Tests	dupname asflicense javac javadoc unit spotbugs findbugs shadedjars hadoopcheck hbaseanti checkstyle compile
uname	Linux 767348ce9935 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-slave/workspace/HBase-PreCommit-GitHub-PR_PR-554/out/precommit/personality/provided.sh
git revision	master / d32bf8d
Default Java	1.8.0_181
Test Results	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/10/testReport/
Max. process+thread count	5487 (vs. ulimit of 10000)
modules	C: hbase-mapreduce U: hbase-mapreduce
Console output	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/10/console
versions	git=2.11.0 maven=2018-06-17T18:33:14Z) findbugs=3.1.11
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[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
0	reexec	90	Docker mode activated.
		_ Prechecks _
+1	dupname	0	No case conflicting files found.
+1	hbaseanti	0	Patch does not have any anti-patterns.
+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	361	master passed
+1	compile	27	master passed
+1	checkstyle	22	master passed
+1	shadedjars	309	branch has no errors when building our shaded downstream artifacts.
+1	javadoc	19	master passed
0	spotbugs	55	Used deprecated FindBugs config; considering switching to SpotBugs.
+1	findbugs	52	master passed
		_ Patch Compile Tests _
+1	mvninstall	334	the patch passed
+1	compile	27	the patch passed
+1	javac	27	the patch passed
+1	checkstyle	21	the patch passed
+1	whitespace	0	The patch has no whitespace issues.
+1	shadedjars	308	patch has no errors when building our shaded downstream artifacts.
+1	hadoopcheck	1077	Patch does not cause any errors with Hadoop 2.8.5 2.9.2 or 3.1.2.
+1	javadoc	20	the patch passed
+1	findbugs	63	the patch passed
		_ Other Tests _
+1	unit	1387	hbase-mapreduce in the patch passed.
+1	asflicense	15	The patch does not generate ASF License warnings.
		4532

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/11/artifact/out/Dockerfile
GITHUB PR	#554
Optional Tests	dupname asflicense javac javadoc unit spotbugs findbugs shadedjars hadoopcheck hbaseanti checkstyle compile
uname	Linux 368755c45303 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 10:55:24 UTC 2019 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-slave/workspace/HBase-PreCommit-GitHub-PR_PR-554/out/precommit/personality/provided.sh
git revision	master / 8e8bd8b
Default Java	1.8.0_181
Test Results	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/11/testReport/
Max. process+thread count	5066 (vs. ulimit of 10000)
modules	C: hbase-mapreduce U: hbase-mapreduce
Console output	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/11/console
versions	git=2.11.0 maven=2018-06-17T18:33:14Z) findbugs=3.1.11
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[saintstack]

Any chance of a UT?

[saintstack]

Patch LGTM. Can we have a unit test? Thanks.

[langdamao]

Patch LGTM. Can we have a unit test? Thanks.

Sorry for miss the last message.
Yes， I think TestHFileOutputFormat2 fits this. Is this comprehensive enought for this patch?
I don't know how to make it more strong for this patch. Could you give me some suggestions, please？
Thank you so much :)

[infraio]

@langdamao You can check TestHFileOutputFormat2#testWritingPEData to write a ut and test the generated files size is small than a value.

[langdamao]

@langdamao You can check TestHFileOutputFormat2#testWritingPEData to write a ut and test the generated files size is small than a value.

Got it, thank you so much! I'll try!

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
💙	reexec	0m 34s	Docker mode activated.
		_ Prechecks _
💚	dupname	0m 0s	No case conflicting files found.
💚	hbaseanti	0m 0s	Patch does not have any anti-patterns.
💚	@author	0m 0s	The patch does not contain any @author tags.
💚	test4tests	0m 0s	The patch appears to include 1 new or modified test files.
		_ master Compile Tests _
💚	mvninstall	6m 24s	master passed
💚	compile	0m 27s	master passed
💚	checkstyle	0m 22s	master passed
💚	shadedjars	4m 36s	branch has no errors when building our shaded downstream artifacts.
💚	javadoc	0m 20s	master passed
💙	spotbugs	0m 55s	Used deprecated FindBugs config; considering switching to SpotBugs.
💚	findbugs	0m 53s	master passed
		_ Patch Compile Tests _
💚	mvninstall	4m 56s	the patch passed
💚	compile	0m 26s	the patch passed
💚	javac	0m 26s	the patch passed
💚	checkstyle	0m 22s	the patch passed
💚	whitespace	0m 0s	The patch has no whitespace issues.
💚	shadedjars	4m 35s	patch has no errors when building our shaded downstream artifacts.
💚	hadoopcheck	15m 31s	Patch does not cause any errors with Hadoop 2.8.5 2.9.2 or 3.1.2.
💚	javadoc	0m 19s	the patch passed
💚	findbugs	0m 53s	the patch passed
		_ Other Tests _
💚	unit	17m 19s	hbase-mapreduce in the patch passed.
💚	asflicense	0m 20s	The patch does not generate ASF License warnings.
		64m 48s

Subsystem	Report/Notes
Docker	Client=19.03.2 Server=19.03.2 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/12/artifact/out/Dockerfile
GITHUB PR	#554
Optional Tests	dupname asflicense javac javadoc unit spotbugs findbugs shadedjars hadoopcheck hbaseanti checkstyle compile
uname	Linux 901e909e4ce6 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-slave/workspace/HBase-PreCommit-GitHub-PR_PR-554/out/precommit/personality/provided.sh
git revision	master / e911bb7
Default Java	1.8.0_181
Test Results	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/12/testReport/
Max. process+thread count	5646 (vs. ulimit of 10000)
modules	C: hbase-mapreduce U: hbase-mapreduce
Console output	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-554/12/console
versions	git=2.11.0 maven=2018-06-17T18:33:14Z) findbugs=3.1.11
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