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Bug 1812412: Monitoring: Increase Prometheus query_range timeouts to 30s #7004

Commits on Oct 27, 2020

  1. Monitoring: Increase Prometheus query_range timeouts to 30s

    The current timeout of 5 seconds is probably much too strict.
    
    Prometheus has a maximum concurrent queries limit, which is currently
    set to 20. This should protect against overloading Prometheus, even if
    we increase the timeout significantly.
    
    Also, if there are more than 20 queries, some will be queued and the
    time they spend in the queue will count towards the time limit, which is
    another reason to make the timeout less strict.
    kyoto committed Oct 27, 2020
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