Comment by imtringued
3 months ago
VPS/Cloud providers skimp on RAM. The JVM sucks for any low RAM workload, where you want the smallest possible single server instance. The startup times of JVM based applications are also horrendous. How many gigabytes of RAM does Digital Ocean give you with your smallest instance? They don't. They give you 512MiB. Suddenly using Java is no longer an option, because you will be wasting your day carefully tuning literally everything to fit in that amount.
You can get decent startup times if you have fewer dependencies. The JVM itself starts fairly quickly (<200 ms), the problem is all the class loading. If your "app" is a bloated multi gigabyte monstrosity... good luck!