Exceptions: include Timer.ActiveCount in .NET Core stats #2500
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We're seeing some instances of quite delayed timeouts and at least in two deeper investigations it was due to a huge number of timers firing and the backlog timeout assessment timer not triggering for an extended period of time. To help users diagnose this, adding the cheap counter to the .NET Core pool stats where Timer.ActiveCount is readily available.
mgravell
approved these changes
Jul 5, 2023
rifhanakram
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Oct 3, 2023
With this change StackExchange#2500 active Timers count is part of the log
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We're seeing some instances of quite delayed timeouts and at least in two deeper investigations it was due to a huge number of timers firing and the backlog timeout assessment timer not triggering for an extended period of time. To help users diagnose this, adding the cheap counter to the .NET Core pool stats where
Timer.ActiveCountis readily available.This is available in all the .NET (non-Framework) versions we support.
Before:
After:
See #2477 for another possible instance of this.