Lua has try/catch-like functionality, it's just called pcall ("protected call"), or xpcall (http://www.lua.org/manual/5.1/manual.html#pdf-xpcall http://www.lua.

Lua has try/catch-like functionality, it's just called pcall ("protected call"), or xpcall (http://www.lua.org/manual/5.1/manual.html#pdf-xpcall http://www.lua.org/manual/5.1/manual.html#pdf-xpcall) if you want to run a callback before the stack unwinds. Running debug.debug inside xpcall's handler will drop into a shell on error, which is particularly handy. error("error tag") is comparable to raising an exception. I wasn't aware of LuaJIT's 1gb limit, but it's neither hard nor unusual to run several Lua states in multiple worker processes.