Another issue I got while experiencing the fdlimit problem with my own server software when running it in high-load production environment is unexpected returns from runtime.block_on(). It may be a good idea to log the runtime.block_on() errors if returned, and maybe even to restart it in a loop { } after 1 second rather than simply exiting as the last recovery point (although the latter may be depending on your software developer beliefs).
Another issue I got while experiencing the fdlimit problem with my own server software when running it in high-load production environment is unexpected returns from
runtime.block_on(). It may be a good idea to log theruntime.block_on()errors if returned, and maybe even to restart it in aloop { }after 1 second rather than simply exiting as the last recovery point (although the latter may be depending on your software developer beliefs).