[AMBARI-17845] Storm cluster metrics do not show up because of AMS aggregation issue.

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.2.2
• Fix Version/s: 2.4.0
• Component/s: ambari-metrics
• Assignee: Aravindan Vijayan
• Reporter: Aravindan Vijayan
• Created: 21/Jul/16 22:53
• Updated: 23/Jul/16 01:55
• Resolved: 22/Jul/16 22:16

Description

PROBLEM
Storm cluster metrics (aggregated across hosts) don't show up in Ambari and Grafana

BUG
Storm metrics collect and send data in 1 minute intervals. Since their data is present in the right end of the spectrum for the 2 minute aggregator (start_time ~ server_time), a bug in the second aggregator is causing these values to slip between 2 aggregator cycles.

FIX
Within the 2 minute interval, look for the data in the time shifted interval ( ams-site:timeline.metrics.service.cluster.aggregator.timeshift.adjustment). In case no data is present, look for the data outside the right boundary of the interval. Use that to interpolate the data in the 30second slices.

Issue Links

• links to: Review Board