[HDFS-460] Expose NN and DN hooks to service plugins

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Component/s: datanode, namenode
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 01/Jul/09 20:26
• Updated: 23/Jul/14 18:39
• Resolved: 23/Jul/14 18:39

Description

This is the other half of the old HADOOP-5640 (Allow ServicePlugins to hook callbacks into key service events). It adds hooks to the NN and DN to expose certain events to plugins.

Issue Links

• depends upon: HADOOP-5640 Allow ServicePlugins to hook callbacks into key service events