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https://reviews.apache.org/r/55471/
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Review request for Aurora, Joshua Cohen and Stephan Erb.
Bugs: AURORA-1876
https://issues.apache.org/jira/browse/AURORA-1876
Repository: aurora
Description
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This patch exposes stats on `rateLimiter.acquire()` sleep time in `TaskGroups`.
Hence, providing visibility into whether scheduling rate is above/below
`MAX_SCHEDULE_ATTEMPTS_PER_SEC`.
Diffs
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src/main/java/org/apache/aurora/scheduler/scheduling/TaskGroups.java
2d548b0adc9219080aa8e0e8b329f57edda01c13
src/test/java/org/apache/aurora/scheduler/scheduling/TaskGroupsTest.java
566e0d9ee8976a5eadd3088d34280fcfb0de3df0
Diff: https://reviews.apache.org/r/55471/diff/
Testing
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```
$ curl localhost:8081/vars | grep schedule_attempts_sleep_time_nanos
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 44008 0 44008 0 0 5236k 0 --:--:-- --:--:-- --:--:-- 5372k
schedule_attempts_sleep_time_nanos 0
```
Thanks,
Mehrdad Nurolahzade
