[FLINK-13542] Flink Datadog metrics reporter sends empty series if there is no metrics

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 1.8.1
• Component/s: Runtime / Metrics
• Labels: datadog metrics pull-request-available
• Assignee: Mans Singh
• Reporter: Mans Singh
• Created: 01/Aug/19 22:11
• Updated: 13/Apr/21 20:40
• Resolved: 30/Aug/19 10:17

Description

If there are no metrics, Datadog reporter still sends empty series array to Datadog.  The reporter can check the size of the series and only send if there are metrics collected.

Issue Links

• links to: GitHub Pull Request #9325