[EAGLE-462] Alert Dudup - same metric generate alert should be deduped

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: v0.4.0
• Fix Version/s: v0.5.0
• Assignee: Zeng, Bryant
• Reporter: Zeng, Bryant
• Created: 12/Aug/16 06:13
• Updated: 09/Oct/16 02:35
• Resolved: 09/Oct/16 02:35

Description

To avoid large numbers of duplicate alerts, we need to dedup alerts which are as below:
1. same metric generate alert should be deduped
2. user can define tags which is considered by dedup. by default will only
consider about policyId and streamId.

Issue Links

• links to: GitHub Pull Request #352