[MAPREDUCE-1910] Allow raid policy to specify a parent policy

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 0.22.0
• Component/s: contrib/raid
• Assignee: Scott Chen
• Reporter: Scott Chen
• Created: 01/Jul/10 23:58
• Updated: 01/Aug/17 17:12
• Resolved: 01/Aug/17 17:12

Description

We encountered the problem that there are lots of redundancy in our raid.xml file. Most of the policy shares the same properties. It will be nice if a policy can inherit from a previously defined policy and get the default properties from it. This way it is easier to maintain the raid policies.