Cryosparcm restart stalls at command_core: started after change in IP address

We have cryosparc installed in our standalone workstation (Centos7) with the latest version and patch. All the programs were running without issues until yesterday when our Computer Center assigned a new IP address to our workstation (The “hostname” is same). Now when I restarted cryosparc with “cryosparcm restart”, it stalls at command_core: started.


When I run “cryosparcm status”, it shows:

I checked the ports 39000-39010 and they are open. Can you please help me solve the issue?

Are there any error messages at or near the end of output from
cryosparcm log command_core?

Has the workstation been rebooted since the address reassignment? If not, I suggest

  • determining the process id of the supervisord mongod process
    ps xu | grep cryosparc | grep supervisor
    and killing that process
  • confirming that the CryoSPARC database is no longer running
    ps xu | grep cryosparc | grep mongo
    and killing (but not kill -9, details) the mongod process if necessary.
  • rebooting the computer
  • then trying cryosparcm start

Does cryosparcm start work after reboot? If not, what are

  • error messages in shell
  • the output of hostname -f
  • the output of cryosparcm log command_core
1 Like

Hi @cryo-fan , you can be sure CS sees your host by adding


on your Maybe it will work. Of course backup and stop cryosparc before the modification… :upside_down_face:

1 Like

Hello @wtempel and @jucastil,
Thanks so much for the helpful suggestions. Cryosparc is now running smoothly in our workstation.