Linux Ulimit OpenFiles
example error
Feb 11 01:55:05 server service[26075]: INFO: I/O exception (java.net.SocketException) caught when processing request to {}->http://10.55.55.5:41111: Too many open files
Check ulimit
$ ulimit -n 1024
- Check what is open with
- ps ax | grep "app name"
sudo ls /proc/<pid>/fd/ -l