[FLINK-11473] Clarify Documenation on Latency Tracking

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.7.1
• Fix Version/s: 1.7.2, 1.8.0
• Component/s: Documentation, Runtime / Metrics
• Labels: pull-request-available
• Assignee: Konstantin Knauf
• Reporter: Konstantin Knauf
• Created: 30/Jan/19 19:42
• Updated: 31/Jan/19 12:06
• Resolved: 31/Jan/19 12:06

Description

The documenation on Latency Tracking states:

All intermediate operators keep a list of the last n latencies from each source to compute a latency distribution. The sink operators keep a list from each source, and each parallel source instance to allow detecting latency issues caused by individual machines.

This is not correct anymore as this behavior is controlled by a configuration `metrics.latency.granularity` now.

Issue Links

• links to: GitHub Pull Request #7608