connmgr: remove WithEmergencyTrim #3217
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This option `WithEmergencyTrim` intended to trim connections where there was a memory emergency. The API was very confusing. To use it correctly you had to use the `WithEmergencyTrim` option and then do `watchdog.HeapDriven(...)` to run the goroutine that would trigger this in time of a memory emergency. As there's no correct usage of this API(https://github.com/search?q=WithEmergencyTrim&type=code&p=1), I'm removing this and exporting a ForceTrim method that users can call using any watchdog style memory tracking implementation.
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This option
WithEmergencyTrimintended to trim connections where there was a memory emergency. The API was very confusing. To use it correctly you had to use theWithEmergencyTrimoption and then dowatchdog.HeapDriven(...)to run the goroutine that would trigger this in time of a memory emergency.As there's no correct usage of this
API(https://github.com/search?q=WithEmergencyTrim&type=code&p=1), I'm removing this and exporting a ForceTrim method that users can call using any watchdog style memory tracking implementation.
closes #3216