Piotr Nowojski created FLINK-35065:
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Summary: Add numFiredTimers and numFiredTimersPerSecond metrics
Key: FLINK-35065
URL: https://issues.apache.org/jira/browse/FLINK-35065
Project: Flink
Issue Type: Improvement
Components: Runtime / Metrics, Runtime / Task
Affects Versions: 1.19.0
Reporter: Piotr Nowojski
Assignee: Piotr Nowojski
Fix For: 1.20.0
Currently there is now way of knowing how many timers are being fired by Flink,
so it's impossible to distinguish, even using code profiling, if operator is
firing only a couple of heavy timers per second using ~100% of the CPU time, vs
firing thousands of timer per seconds.
We could add the following metrics to address this issue:
* numFiredTimers - total number of fired timers per operator
* numFiredTimersPerSecond - per second rate of firing timers per operator
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