HBASE-26681 Introduce a little RAMBuffer for bucketcache to reduce gc and improve throughput

[YutSean]

https://issues.apache.org/jira/browse/HBASE-26681

[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	7m 59s	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.
-0 ⚠️	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.
		_ branch-1 Compile Tests _
+1 💚	mvninstall	14m 28s	branch-1 passed
+1 💚	compile	0m 46s	branch-1 passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	compile	0m 51s	branch-1 passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+1 💚	checkstyle	1m 57s	branch-1 passed
+1 💚	shadedjars	3m 38s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 49s	branch-1 passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javadoc	0m 43s	branch-1 passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+0 🆗	spotbugs	3m 20s	Used deprecated FindBugs config; considering switching to SpotBugs.
+1 💚	findbugs	3m 17s	branch-1 passed
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 19s	the patch passed
+1 💚	compile	0m 47s	the patch passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javac	0m 47s	the patch passed
+1 💚	compile	0m 52s	the patch passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+1 💚	javac	0m 52s	the patch passed
-1 ❌	checkstyle	1m 44s	hbase-server: The patch generated 1 new + 16 unchanged - 0 fixed = 17 total (was 16)
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	shadedjars	3m 20s	patch has no errors when building our shaded downstream artifacts.
+1 💚	hadoopcheck	8m 2s	Patch does not cause any errors with Hadoop 2.8.5 2.9.2.
+1 💚	javadoc	0m 33s	the patch passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javadoc	0m 43s	the patch passed with JDK Azul Systems, Inc.-1.7.0_272-b10
-1 ❌	findbugs	3m 16s	hbase-server generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0)
		_ Other Tests _
-1 ❌	unit	157m 15s	hbase-server in the patch failed.
+1 💚	asflicense	0m 34s	The patch does not generate ASF License warnings.
		217m 57s

Reason	Tests
FindBugs	module:hbase-server
	Integral division result cast to double or float in new org.apache.hadoop.hbase.io.hfile.bucket.BufferedBucketCache(String, long, int, int[], int, int, String, int, Configuration) At BufferedBucketCache.java:double or float in new org.apache.hadoop.hbase.io.hfile.bucket.BufferedBucketCache(String, long, int, int[], int, int, String, int, Configuration) At BufferedBucketCache.java:[line 68]
Failed junit tests	hadoop.hbase.mapreduce.TestLoadIncrementalHFilesUseSecurityEndPoint
	hadoop.hbase.mapreduce.TestLoadIncrementalHFiles

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/1/artifact/out/Dockerfile
GITHUB PR	#4043
Optional Tests	dupname asflicense javac javadoc unit spotbugs findbugs shadedjars hadoopcheck hbaseanti checkstyle compile
uname	Linux 3c8b22b2c05c 4.15.0-162-generic #170-Ubuntu SMP Mon Oct 18 11:38:05 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-home/workspace/Base-PreCommit-GitHub-PR_PR-4043/out/precommit/personality/provided.sh
git revision	branch-1 / a3e7d36
Default Java	Azul Systems, Inc.-1.7.0_272-b10
Multi-JDK versions	/usr/lib/jvm/zulu-8-amd64:Azul Systems, Inc.-1.8.0_262-b19 /usr/lib/jvm/zulu-7-amd64:Azul Systems, Inc.-1.7.0_272-b10
checkstyle	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/1/artifact/out/diff-checkstyle-hbase-server.txt
findbugs	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/1/artifact/out/new-findbugs-hbase-server.html
unit	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/1/artifact/out/patch-unit-hbase-server.txt
Test Results	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/1/testReport/
Max. process+thread count	4708 (vs. ulimit of 10000)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/1/console
versions	git=2.17.1 maven=3.6.0 findbugs=3.0.1
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[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 6s	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.
-0 ⚠️	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.
		_ branch-1 Compile Tests _
+1 💚	mvninstall	12m 48s	branch-1 passed
+1 💚	compile	0m 45s	branch-1 passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	compile	0m 51s	branch-1 passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+1 💚	checkstyle	1m 55s	branch-1 passed
+1 💚	shadedjars	3m 40s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 51s	branch-1 passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javadoc	0m 44s	branch-1 passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+0 🆗	spotbugs	3m 22s	Used deprecated FindBugs config; considering switching to SpotBugs.
+1 💚	findbugs	3m 18s	branch-1 passed
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 20s	the patch passed
+1 💚	compile	0m 45s	the patch passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javac	0m 45s	the patch passed
+1 💚	compile	0m 51s	the patch passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+1 💚	javac	0m 51s	the patch passed
-1 ❌	checkstyle	1m 44s	hbase-server: The patch generated 1 new + 16 unchanged - 0 fixed = 17 total (was 16)
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	shadedjars	3m 23s	patch has no errors when building our shaded downstream artifacts.
+1 💚	hadoopcheck	6m 58s	Patch does not cause any errors with Hadoop 2.8.5 2.9.2.
+1 💚	javadoc	0m 32s	the patch passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javadoc	0m 43s	the patch passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+1 💚	findbugs	3m 11s	the patch passed
		_ Other Tests _
-1 ❌	unit	164m 13s	hbase-server in the patch failed.
+1 💚	asflicense	0m 38s	The patch does not generate ASF License warnings.
		215m 12s

Reason	Tests
Failed junit tests	hadoop.hbase.mapreduce.TestLoadIncrementalHFilesUseSecurityEndPoint
	hadoop.hbase.mapreduce.TestSecureLoadIncrementalHFiles
	hadoop.hbase.TestPartialResultsFromClientSide

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/2/artifact/out/Dockerfile
GITHUB PR	#4043
Optional Tests	dupname asflicense javac javadoc unit spotbugs findbugs shadedjars hadoopcheck hbaseanti checkstyle compile
uname	Linux 2e27082b906b 4.15.0-162-generic #170-Ubuntu SMP Mon Oct 18 11:38:05 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-home/workspace/Base-PreCommit-GitHub-PR_PR-4043/out/precommit/personality/provided.sh
git revision	branch-1 / a3e7d36
Default Java	Azul Systems, Inc.-1.7.0_272-b10
Multi-JDK versions	/usr/lib/jvm/zulu-8-amd64:Azul Systems, Inc.-1.8.0_262-b19 /usr/lib/jvm/zulu-7-amd64:Azul Systems, Inc.-1.7.0_272-b10
checkstyle	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/2/artifact/out/diff-checkstyle-hbase-server.txt
unit	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/2/artifact/out/patch-unit-hbase-server.txt
Test Results	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/2/testReport/
Max. process+thread count	4509 (vs. ulimit of 10000)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/2/console
versions	git=2.17.1 maven=3.6.0 findbugs=3.0.1
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[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 32s	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.
-0 ⚠️	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.
		_ branch-1 Compile Tests _
+1 💚	mvninstall	13m 58s	branch-1 passed
+1 💚	compile	0m 59s	branch-1 passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	compile	1m 3s	branch-1 passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+1 💚	checkstyle	2m 23s	branch-1 passed
+1 💚	shadedjars	4m 16s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	1m 0s	branch-1 passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javadoc	0m 57s	branch-1 passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+0 🆗	spotbugs	3m 49s	Used deprecated FindBugs config; considering switching to SpotBugs.
+1 💚	findbugs	3m 44s	branch-1 passed
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 54s	the patch passed
+1 💚	compile	0m 52s	the patch passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javac	0m 52s	the patch passed
+1 💚	compile	0m 58s	the patch passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+1 💚	javac	0m 58s	the patch passed
+1 💚	checkstyle	2m 0s	the patch passed
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	shadedjars	4m 19s	patch has no errors when building our shaded downstream artifacts.
+1 💚	hadoopcheck	8m 48s	Patch does not cause any errors with Hadoop 2.8.5 2.9.2.
+1 💚	javadoc	0m 38s	the patch passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javadoc	0m 51s	the patch passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+1 💚	findbugs	3m 59s	the patch passed
		_ Other Tests _
-1 ❌	unit	189m 59s	hbase-server in the patch failed.
+1 💚	asflicense	0m 37s	The patch does not generate ASF License warnings.
		250m 11s

Reason	Tests
Failed junit tests	hadoop.hbase.replication.TestReplicationSource
	hadoop.hbase.namequeues.TestNamedQueueRecorder
	hadoop.hbase.mapreduce.TestSecureLoadIncrementalHFiles
	hadoop.hbase.snapshot.TestExportSnapshot
	hadoop.hbase.mapreduce.TestLoadIncrementalHFiles

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/3/artifact/out/Dockerfile
GITHUB PR	#4043
Optional Tests	dupname asflicense javac javadoc unit spotbugs findbugs shadedjars hadoopcheck hbaseanti checkstyle compile
uname	Linux 93328c06d304 4.15.0-162-generic #170-Ubuntu SMP Mon Oct 18 11:38:05 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-home/workspace/Base-PreCommit-GitHub-PR_PR-4043/out/precommit/personality/provided.sh
git revision	branch-1 / a3e7d36
Default Java	Azul Systems, Inc.-1.7.0_272-b10
Multi-JDK versions	/usr/lib/jvm/zulu-8-amd64:Azul Systems, Inc.-1.8.0_262-b19 /usr/lib/jvm/zulu-7-amd64:Azul Systems, Inc.-1.7.0_272-b10
unit	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/3/artifact/out/patch-unit-hbase-server.txt
Test Results	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/3/testReport/
Max. process+thread count	4578 (vs. ulimit of 10000)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/3/console
versions	git=2.17.1 maven=3.6.0 findbugs=3.0.1
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[YutSean]

The failed UTs passed locally though.

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	4m 54s	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.
-0 ⚠️	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.
		_ branch-1 Compile Tests _
+1 💚	mvninstall	10m 16s	branch-1 passed
+1 💚	compile	0m 43s	branch-1 passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	compile	0m 50s	branch-1 passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+1 💚	checkstyle	1m 46s	branch-1 passed
+1 💚	shadedjars	3m 21s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 48s	branch-1 passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javadoc	0m 42s	branch-1 passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+0 🆗	spotbugs	3m 9s	Used deprecated FindBugs config; considering switching to SpotBugs.
+1 💚	findbugs	3m 6s	branch-1 passed
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 10s	the patch passed
+1 💚	compile	0m 46s	the patch passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javac	0m 46s	the patch passed
+1 💚	compile	0m 49s	the patch passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+1 💚	javac	0m 49s	the patch passed
+1 💚	checkstyle	1m 31s	the patch passed
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	shadedjars	3m 2s	patch has no errors when building our shaded downstream artifacts.
+1 💚	hadoopcheck	5m 17s	Patch does not cause any errors with Hadoop 2.8.5 2.9.2.
+1 💚	javadoc	0m 32s	the patch passed with JDK Azul Systems, Inc.-1.8.0_262-b19
+1 💚	javadoc	0m 41s	the patch passed with JDK Azul Systems, Inc.-1.7.0_272-b10
+1 💚	findbugs	2m 59s	the patch passed
		_ Other Tests _
+1 💚	unit	130m 27s	hbase-server in the patch passed.
+1 💚	asflicense	0m 41s	The patch does not generate ASF License warnings.
		179m 0s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/1/artifact/out/Dockerfile
GITHUB PR	#4043
Optional Tests	dupname asflicense javac javadoc unit spotbugs findbugs shadedjars hadoopcheck hbaseanti checkstyle compile
uname	Linux 59e24a57f1fc 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	/home/jenkins/jenkins-home/workspace/Base-PreCommit-GitHub-PR_PR-4043/out/precommit/personality/provided.sh
git revision	branch-1 / a2406f3
Default Java	Azul Systems, Inc.-1.7.0_272-b10
Multi-JDK versions	/usr/lib/jvm/zulu-8-amd64:Azul Systems, Inc.-1.8.0_262-b19 /usr/lib/jvm/zulu-7-amd64:Azul Systems, Inc.-1.7.0_272-b10
Test Results	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/1/testReport/
Max. process+thread count	4549 (vs. ulimit of 10000)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-4043/1/console
versions	git=2.17.1 maven=3.6.0 findbugs=3.0.1
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