[FEATURE] Memory leak?

[YoshihitoAso]

Is your feature request related to a problem? Please describe.

• After about a week of continuous access load, the memory usage increased as shown below.

Describe the solution you'd like

• Need to investigate the cause.

[YoshihitoAso]

This Issue may be related to that.
Kludex/starlette#667

[YoshihitoAso]

The problem only becomes apparent under high load conditions. Therefore, the problem is currently avoided by restarting the service.