[SPARK-32409] Document the dependency between spark.metrics.staticSources.enabled and JVMSource registration

• Type: Documentation
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.1, 3.1.0
• Component/s: Spark Core
• Assignee: Luca Canali
• Reporter: Luca Canali
• Created: 23/Jul/20 11:17
• Updated: 10/Aug/20 16:33
• Resolved: 10/Aug/20 16:32

Description

SPARK-29654 has introduced the configuration `spark.metrics.register.static.sources.enabled`.
The current implementation of SPARK-29654 and SPARK-25277 have, as side effect, that when spark.metrics.register.static.sources.enabled is set to false, the registration of JVM Source is also ignored, even if requested with spark.metrics.conf.*.source.jvm.class=org.apache.spark.metrics.source.JvmSource
A PR is proposed to fix this.

Issue Links

• links to: [Github] Pull Request #29203 (LucaCanali)
• links to: [Github] Pull Request #29203 (LucaCanali)