[CHUKWA-571] Add digested system metrics to SystemMetrics demux parser

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5.0
• Component/s: MR Data Processors

Environment

Java 6, Mac OS X 10.6

• Assignee: Eric Yang
• Reporter: Eric Yang
• Created: 30/Dec/10 05:47
• Updated: 02/Jan/11 05:25
• Resolved: 02/Jan/11 05:25

Description

For now, the system metrics demux parser are storing raw metrics. Each system components are measured independently. It would be nice to make a summary grouping for cpu, disk, network. Instead of storing cpu:combined.0 ... cpu:combined.8, for 8 cpu cores in the system, it would be nice to have a average number for all cpus combined. The digested metrics are easier to aggregate at cluster level.