Backport "HBASE-29070 Balancer cost function epsilon is imprecise (#6597)" to branch-3

[rmdmattingly]

No description provided.

[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 0s		Docker mode activated.
-1 ❌	docker	0m 3s		Docker failed to build run-specific yetus/hbase:tp-19709}.

Subsystem	Report/Notes
GITHUB PR	#6599
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-6599/1/console
versions	git=2.17.1
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[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 27s		Docker mode activated.
-0 ⚠️	yetus	0m 3s		Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --author-ignore-list --blanks-eol-ignore-file --blanks-tabs-ignore-file --quick-hadoopcheck
			_ Prechecks _
			_ branch-3 Compile Tests _
+1 💚	mvninstall	3m 17s		branch-3 passed
+1 💚	compile	0m 15s		branch-3 passed
+1 💚	javadoc	0m 13s		branch-3 passed
+1 💚	shadedjars	5m 53s		branch has no errors when building our shaded downstream artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	3m 7s		the patch passed
+1 💚	compile	0m 14s		the patch passed
+1 💚	javac	0m 14s		the patch passed
+1 💚	javadoc	0m 11s		the patch passed
+1 💚	shadedjars	5m 53s		patch has no errors when building our shaded downstream artifacts.
			_ Other Tests _
+1 💚	unit	6m 30s		hbase-balancer in the patch passed.
		27m 0s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-6599/1/artifact/yetus-jdk17-hadoop3-check/output/Dockerfile
GITHUB PR	#6599
Optional Tests	javac javadoc unit compile shadedjars
uname	Linux 11d5f868f3d5 5.4.0-1103-aws #111~18.04.1-Ubuntu SMP Tue May 23 20:04:10 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	branch-3 / 4c7875a
Default Java	Eclipse Adoptium-17.0.11+9
Test Results	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-6599/1/testReport/
Max. process+thread count	257 (vs. ulimit of 30000)
modules	C: hbase-balancer U: hbase-balancer
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-6599/1/console
versions	git=2.34.1 maven=3.9.8
Powered by	Apache Yetus 0.15.0 https://yetus.apache.org

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