[HADOOP-15302] Enable DataNode/NameNode service plugins with Service Provider interface

• Type: Improvement
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Target Version/s: 3.5.0
• Assignee: Marton Elek
• Reporter: Marton Elek
• Created: 09/Mar/18 15:43
• Updated: 04/Jan/24 12:25

Description

HADOOP-5257 introduced ServicePlugin capabilities for NameNode/DataNode. As of now they could be activated by configuration values.

I propose to activate plugins with Service Provider Interface. In case of a special service file is added a jar it would be enough to add the plugin to the classpath. It would help to add optional components to NameNode/DataNode with settings the classpath.

This is the same api which could be used in java 9 to consume defined services.