TRANSMISSION FOR MAC PORT CLOSED HOW TO

Check the UDP port: netstat -npu (u for UDP), which will give you the PID that occupies that port.On various linux flavors this is usually done w/ GDB by issuing syscalls masquerading as a the process (for example close(fd) syscall on the sockets file descriptor). It is indeed possible to close the port manually w/o restarting the machine. Although finding a solution/bugfix that prevents the issue from ocurring in the first place would be ideal, I'm also interested in ways to manually close that port from the terminal.This question originates from this github issue.The program in question is the electron-wrapped Patchwork.

TRANSMISSION FOR MAC PORT CLOSED HOW TO

I have waited several hours since the program last ran, so I'm pretty sure any timeout would have happened by now, but the port just won't get released.Īny ideas on how to force release the port without a reboot? Lastly, I tried to restart the loopback interface: $ sudo ifconfig lo down Not being able to kill anything, I tried to SIGHUP launchd in the hope that it might remove any zombie child processes: $ sudo kill HUP 1īut alas, netstat still shows the port bound. So the children processes are also clearly dead. I also looked for any process reporting 47205 as its parent: $ ps -axo pid,ppid,command | grep 47205 I also tried other variations of the grep (program name, path, etc). The same thing for PIDs 4727 (most certainly the PIDs assigned to the children). So, the port is indeed bound, and the culprit is pid 47205, however: $ ps aux | grep 47205ĭoesn't return anything. However, I had more luck with netstat: $ netstat -tulnvp udp | grep 8008 Here are some diagnostics that I ran so far (I ran all of these with and without sudo):įind the process using port 8008 with lsof: $ lsof -i -n -P | grep UDP | grep 8008īut surprisingly doesn't return any results. I'm having a hard time believing that I cannot release the port without a reboot.

When this happens, if I try to run the program again it naturally fails with a EADDRINUSE error, and in these cases no matter what I try, the only solution I found was to reboot the machine.

Unfortunately when exiting the program, sometimes the port remains open, even though the program (parent + children) no longer exist. This program normally also spawns a couple of helper child processes during its operation, but the port is bound by the parent process. I am on OS X 10.11.6 and trying to run a program that normally listens on UDP port 8008 upon startup.

Transmission for mac port closed