If you are seeing the message with "EMFILE: too many open files" in your deployment, that's because your current system of open files is limited. $ ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 101974 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (..