HBASE-27435 Make Prometheus metrics queryable #4879

lucakovacs · 2022-11-12T11:11:32Z

In this change I implemented the query feature for the Prometheus metrics

Apache JIRA: https://issues.apache.org/jira/browse/HBASE-27435

Notes: - Made the code more compact

Apache-HBase · 2022-11-12T11:40:39Z

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Apache-HBase · 2022-11-12T11:43:33Z

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Apache-HBase · 2022-11-12T11:49:06Z

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		23m 54s

Reason	Tests
FindBugs	module:hbase-http
	Write to static field org.apache.hadoop.hbase.http.prometheus.PrometheusHadoopServlet.descriptionEnabled from instance method org.apache.hadoop.hbase.http.prometheus.PrometheusHadoopServlet.doGet(HttpServletRequest, HttpServletResponse) At PrometheusHadoopServlet.java:from instance method org.apache.hadoop.hbase.http.prometheus.PrometheusHadoopServlet.doGet(HttpServletRequest, HttpServletResponse) At PrometheusHadoopServlet.java:[line 46]
	Write to static field org.apache.hadoop.hbase.http.prometheus.PrometheusHadoopServlet.queryParam from instance method org.apache.hadoop.hbase.http.prometheus.PrometheusHadoopServlet.doGet(HttpServletRequest, HttpServletResponse) At PrometheusHadoopServlet.java:from instance method org.apache.hadoop.hbase.http.prometheus.PrometheusHadoopServlet.doGet(HttpServletRequest, HttpServletResponse) At PrometheusHadoopServlet.java:[line 47]

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Notes: - Fixed FindBugs issues

Apache-HBase · 2022-11-12T12:55:10Z

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Apache-HBase · 2022-11-12T12:59:23Z

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Apache-HBase · 2022-11-12T13:03:32Z

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		23m 19s

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meszibalu · 2022-11-14T09:35:05Z

hbase-http/src/main/java/org/apache/hadoop/hbase/http/prometheus/PrometheusHadoopServlet.java

+  private boolean descriptionEnabled;
+  private String queryParam;


Servlets should be stateless. There is only one PrometheusHadoopServlet in the JVM, so it can lead to concurrency issues when multiple requests are coming in the same time.

Should've paid more attention to it, thank you for your suggestion!
I fixed it in the next commit.

Notes: - Removed the states of PrometheusHadoopServlet - Description and query are now passed as parameters of the writeMetrics() method

Apache-HBase · 2022-11-16T16:16:46Z

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+1 💚	javadoc	0m 10s	master passed
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 14s	the patch passed
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+1 💚	unit	0m 37s	hbase-http in the patch passed.
		16m 15s

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Apache-HBase · 2022-11-16T16:17:37Z

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		_ Patch Compile Tests _
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+1 💚	unit	0m 42s	hbase-http in the patch passed.
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Apache-HBase · 2022-11-16T16:24:41Z

💔 -1 overall

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-0 ⚠️	checkstyle	0m 9s	hbase-http: The patch generated 3 new + 0 unchanged - 1 fixed = 3 total (was 1)
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Apache-HBase · 2022-11-23T11:21:00Z

🎊 +1 overall

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-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	2m 22s	master passed
+1 💚	compile	0m 12s	master passed
+1 💚	shadedjars	3m 58s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 10s	master passed
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 4s	the patch passed
+1 💚	compile	0m 12s	the patch passed
+1 💚	javac	0m 12s	the patch passed
+1 💚	shadedjars	3m 57s	patch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 9s	the patch passed
		_ Other Tests _
+1 💚	unit	0m 35s	hbase-http in the patch passed.
		15m 22s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4879/4/artifact/yetus-jdk8-hadoop3-check/output/Dockerfile
GITHUB PR	#4879
Optional Tests	javac javadoc unit shadedjars compile
uname	Linux d59cf1f48b31 5.4.0-1088-aws #96~18.04.1-Ubuntu SMP Mon Oct 17 02:57:48 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / `c691091`
Default Java	Temurin-1.8.0_352-b08
Test Results	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4879/4/testReport/
Max. process+thread count	252 (vs. ulimit of 30000)
modules	C: hbase-http U: hbase-http
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4879/4/console
versions	git=2.34.1 maven=3.8.6
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Apache-HBase · 2022-11-23T11:22:19Z

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 39s	Docker mode activated.
-0 ⚠️	yetus	0m 4s	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 5s	master passed
+1 💚	compile	0m 12s	master passed
+1 💚	shadedjars	3m 59s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 11s	master passed
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 21s	the patch passed
+1 💚	compile	0m 13s	the patch passed
+1 💚	javac	0m 13s	the patch passed
+1 💚	shadedjars	3m 56s	patch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 10s	the patch passed
		_ Other Tests _
+1 💚	unit	0m 38s	hbase-http in the patch passed.
		16m 39s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4879/4/artifact/yetus-jdk11-hadoop3-check/output/Dockerfile
GITHUB PR	#4879
Optional Tests	javac javadoc unit shadedjars compile
uname	Linux ea6327c0d492 5.4.0-1085-aws #92~18.04.1-Ubuntu SMP Wed Aug 31 17:21:08 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / `c691091`
Default Java	Eclipse Adoptium-11.0.17+8
Test Results	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4879/4/testReport/
Max. process+thread count	270 (vs. ulimit of 30000)
modules	C: hbase-http U: hbase-http
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4879/4/console
versions	git=2.34.1 maven=3.8.6
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Apache-HBase · 2022-11-23T11:30:25Z

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 7s	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	2m 46s	master passed
+1 💚	compile	0m 21s	master passed
+1 💚	checkstyle	0m 12s	master passed
+1 💚	spotless	0m 43s	branch has no errors when running spotless:check.
+1 💚	spotbugs	0m 27s	master passed
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 32s	the patch passed
+1 💚	compile	0m 19s	the patch passed
+1 💚	javac	0m 19s	the patch passed
-0 ⚠️	checkstyle	0m 10s	hbase-http: The patch generated 1 new + 0 unchanged - 1 fixed = 1 total (was 1)
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	hadoopcheck	8m 54s	Patch does not cause any errors with Hadoop 3.2.4 3.3.4.
+1 💚	spotless	0m 40s	patch has no errors when running spotless:check.
+1 💚	spotbugs	0m 33s	the patch passed
		_ Other Tests _
+1 💚	asflicense	0m 11s	The patch does not generate ASF License warnings.
		24m 52s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4879/4/artifact/yetus-general-check/output/Dockerfile
GITHUB PR	#4879
Optional Tests	dupname asflicense javac spotbugs hadoopcheck hbaseanti spotless checkstyle compile
uname	Linux f4600bd5634b 5.4.0-124-generic #140-Ubuntu SMP Thu Aug 4 02:23:37 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / `c691091`
Default Java	Eclipse Adoptium-11.0.17+8
checkstyle	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4879/4/artifact/yetus-general-check/output/diff-checkstyle-hbase-http.txt
Max. process+thread count	78 (vs. ulimit of 30000)
modules	C: hbase-http U: hbase-http
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4879/4/console
versions	git=2.34.1 maven=3.8.6 spotbugs=4.7.3
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Signed-off-by: Balazs Meszaros <[email protected]>

lucakovacs added 2 commits November 2, 2022 09:12

HBASE-27435 Made Prometheus endpoint queryable

a5b5fae

HBASE-27435 Make Prometheus metrics queryable

a672fda

Notes: - Made the code more compact

HBASE-27435 Make Prometheus metrics queryable

9e336aa

Notes: - Fixed FindBugs issues

meszibalu requested changes Nov 14, 2022

View reviewed changes

HBASE-27435 Make Prometheus metrics queryable

441e6a1

Notes: - Removed the states of PrometheusHadoopServlet - Description and query are now passed as parameters of the writeMetrics() method

Fixed spotless bugs

6db7698

meszibalu approved these changes Nov 30, 2022

View reviewed changes

meszibalu merged commit 37c82a6 into apache:master Dec 12, 2022

asfgit pushed a commit that referenced this pull request Dec 12, 2022

HBASE-27435 Make Prometheus metrics queryable (#4879)

98d6682

Signed-off-by: Balazs Meszaros <[email protected]>

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HBASE-27435 Make Prometheus metrics queryable #4879

HBASE-27435 Make Prometheus metrics queryable #4879

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		private boolean descriptionEnabled;
		private String queryParam;

HBASE-27435 Make Prometheus metrics queryable #4879

HBASE-27435 Make Prometheus metrics queryable #4879

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