[GitHub] [druid] leventov commented on pull request #10448: Added CronScheduler support as a proof to clock drift while emitting metrics

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leventov commented on pull request #10448:
URL: https://github.com/apache/druid/pull/10448#issuecomment-755968409


   > Hi @leventov, as test coverage is not very great for Druid metrics system, I'm wondering how much the CronScheduler is well-tested in production environment, especially when it runs for a long time period. Could you give me some idea?
   
   I don't know of any production deployment of CronScheduler. However, I want to note that the fact that metric/monitoring systems are not well-tested is precisely _the_ reason to introduce CronScheduler, which is engineered for the sole purpose to be more stable than standard library executors.


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