[YARN-8184] Too many metrics if containerLocalizer/ResourceLocalizationService uses ReadWriteDiskValidator

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.2.0
• Component/s: nodemanager
• Hadoop Flags: Reviewed
• Assignee: Yufei Gu
• Reporter: Yufei Gu
• Created: 19/Apr/18 20:45
• Updated: 24/Jun/18 08:05
• Resolved: 22/Jun/18 21:09

Description

ContainerLocalizer or ResourceLocalizationService will use the ReadWriteDiskValidator as its disk validator when it downloads files if we configure the yarn.nodemanger.disk-validator to ReadWriteDiskValidator's name. In that case, ReadWriteDiskValidator will create a metric item for each directory localized, which will be too many metrics. We should let ContainerLocalizer only use the basic disk validator.