[HBASE-5072] Support Max Value for Per-Store Metrics

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.94.0
• Component/s: metrics, regionserver
• Assignee: Nicolas Spiegelberg
• Reporter: Nicolas Spiegelberg
• Created: 20/Dec/11 05:49
• Updated: 12/Oct/12 05:34
• Resolved: 20/Dec/11 18:48

Description

We were bit in our multi-tenant cluster because one of our Stores encountered a bug and grew its StoreFile count. We didn't notice this because the StoreFile count currently reported by the RegionServer is an average of all Stores in the region. For the per-Store metrics, we should also record the max so we can notice outliers.