HBASE-21721 reduce write#syncs() times

[cuibo01]

No description provided.

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 12s	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.
		_ master Compile Tests _
+1 💚	mvninstall	4m 0s	master passed
+1 💚	checkstyle	1m 9s	master passed
+1 💚	spotbugs	2m 14s	master passed
		_ Patch Compile Tests _
+1 💚	mvninstall	3m 36s	the patch passed
+1 💚	checkstyle	1m 17s	the patch passed
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	hadoopcheck	11m 28s	Patch does not cause any errors with Hadoop 3.1.2 3.2.1.
+1 💚	spotbugs	2m 12s	the patch passed
		_ Other Tests _
+1 💚	asflicense	0m 16s	The patch does not generate ASF License warnings.
		34m 47s

Subsystem	Report/Notes
Docker	Client=19.03.12 Server=19.03.12 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/artifact/yetus-general-check/output/Dockerfile
GITHUB PR	#2217
Optional Tests	dupname asflicense spotbugs hadoopcheck hbaseanti checkstyle
uname	Linux e5c62f923cf7 4.15.0-65-generic #74-Ubuntu SMP Tue Sep 17 17:06:04 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / 124af63
Max. process+thread count	94 (vs. ulimit of 12500)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/console
versions	git=2.17.1 maven=(cecedd343002696d0abb50b32b541b8a6ba2883f) spotbugs=3.1.12
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[anoopsjohn]

Carrying forward the Approval from Stack in the other PR.

[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 15s	Docker mode activated.
-0 ⚠️	yetus	0m 2s	Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --whitespace-eol-ignore-list --whitespace-tabs-ignore-list --quick-hadoopcheck
		_ Prechecks _
		_ master Compile Tests _
+1 💚	mvninstall	3m 53s	master passed
+1 💚	compile	0m 55s	master passed
+1 💚	shadedjars	5m 35s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 37s	master passed
		_ Patch Compile Tests _
+1 💚	mvninstall	3m 30s	the patch passed
+1 💚	compile	0m 51s	the patch passed
+1 💚	javac	0m 51s	the patch passed
+1 💚	shadedjars	5m 31s	patch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 32s	the patch passed
		_ Other Tests _
-1 ❌	unit	146m 40s	hbase-server in the patch failed.
		170m 57s

Subsystem	Report/Notes
Docker	Client=19.03.12 Server=19.03.12 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/artifact/yetus-jdk8-hadoop3-check/output/Dockerfile
GITHUB PR	#2217
Optional Tests	javac javadoc unit shadedjars compile
uname	Linux b5a50ba6f672 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / 124af63
Default Java	1.8.0_232
unit	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/artifact/yetus-jdk8-hadoop3-check/output/patch-unit-hbase-server.txt
Test Results	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/testReport/
Max. process+thread count	4678 (vs. ulimit of 12500)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/console
versions	git=2.17.1 maven=(cecedd343002696d0abb50b32b541b8a6ba2883f)
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[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 39s	Docker mode activated.
-0 ⚠️	yetus	0m 3s	Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --whitespace-eol-ignore-list --whitespace-tabs-ignore-list --quick-hadoopcheck
		_ Prechecks _
		_ master Compile Tests _
+1 💚	mvninstall	5m 47s	master passed
+1 💚	compile	1m 37s	master passed
+1 💚	shadedjars	8m 15s	branch has no errors when building our shaded downstream artifacts.
-0 ⚠️	javadoc	0m 52s	hbase-server in master failed.
		_ Patch Compile Tests _
+1 💚	mvninstall	5m 30s	the patch passed
+1 💚	compile	1m 34s	the patch passed
+1 💚	javac	1m 34s	the patch passed
+1 💚	shadedjars	8m 4s	patch has no errors when building our shaded downstream artifacts.
-0 ⚠️	javadoc	0m 47s	hbase-server in the patch failed.
		_ Other Tests _
-1 ❌	unit	136m 25s	hbase-server in the patch failed.
		171m 56s

Subsystem	Report/Notes
Docker	Client=19.03.12 Server=19.03.12 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/artifact/yetus-jdk11-hadoop3-check/output/Dockerfile
GITHUB PR	#2217
Optional Tests	javac javadoc unit shadedjars compile
uname	Linux 18d5bd7c96af 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-support/hbase-personality.sh
git revision	master / 124af63
Default Java	2020-01-14
javadoc	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/artifact/yetus-jdk11-hadoop3-check/output/branch-javadoc-hbase-server.txt
javadoc	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/artifact/yetus-jdk11-hadoop3-check/output/patch-javadoc-hbase-server.txt
unit	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/artifact/yetus-jdk11-hadoop3-check/output/patch-unit-hbase-server.txt
Test Results	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/testReport/
Max. process+thread count	3937 (vs. ulimit of 12500)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2217/1/console
versions	git=2.17.1 maven=(cecedd343002696d0abb50b32b541b8a6ba2883f)
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