Chesnay Schepler created FLINK-10244:
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Summary: Add option to measure latency as absolute value
Key: FLINK-10244
URL: https://issues.apache.org/jira/browse/FLINK-10244
Project: Flink
Issue Type: Sub-task
Components: Metrics
Affects Versions: 1.7.0
Reporter: Chesnay Schepler
Assignee: Chesnay Schepler
Fix For: 1.7.0
Latency metrics are currently organized as a histogram, which is significantly
more expensive than other metric types.
Depending on the user's metric infrastructure a histogram in Flink is overkill;
several metric backends explicitly discourage measuring histograms in the
application itself. Instead only the raw latency data should be exposed.
We should add an option to expose latency not as a histogram but as a simple
gauge that returns the latency based on the last received latency marker.
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