Cache invalidation

[sau0409]

I would like to know for possible solutions for invalidation of cached tiles. When I update any feature in my DB, it doesn't reflect on UI, even after refresh on UI.

My setup
UI <-> MARTIN <-> POSTGIS

1 solution is setting cache_size to 0, but that impacts performance badly.

[nyurik]

One option is to actually use something like Varnish in front of Martin - this way you can do any custom caching and purging logic, while keeping Martin's cache at 0