Yes, but as someone who ran a medium-sized server (200ish players), depending on what your map looked like, you occasionally found yourself spending a lot of time doing GC tuning, especially back in java 7 days when we didn't even have the first generation of G1GC.

Ah, good times. I currently work in Hadoop and it's honestly stupid how much tuning a Spark job is like tuning a Minecraft server (from the JVM level anyway). Life's path is strange sometimes.