[Core] Clear EvoDB cache when oversized #2831
Merged
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Perpetual hunt to reduce memory!
This is a simple PR to clear the EvoDB cache and flush it to disk when it grows.
In Dash, users experience persistently growing memory because the EvoDB cache until v.18 dashpay#5007
This is flushing the evodb cache and chain state when hit its "critical" memory and will keep from persistently growing.