V3.2.0 Fresh Install - cryoSPARC not starting, only database running


After freshly installing cryosparc following the install instructions and starting cryosparc via cryosparcm start, cryosparc only starts the database and command_core.

Output from cryosparcm status:

CryoSPARC System master node installed at
Current cryoSPARC version: v3.2.0

CryoSPARC process status:

app                              STOPPED   Not started
app_dev                          STOPPED   Not started
command_core                     STARTING  
command_rtp                      STOPPED   Not started
command_vis                      STOPPED   Not started
database                         RUNNING   pid 96601, uptime 0:02:25
liveapp                          STOPPED   Not started
liveapp_dev                      STOPPED   Not started
webapp                           STOPPED   Not started
webapp_dev                       STOPPED   Not started

Hi @zahodnbd,

This may be due to a zombie process that is preventing cryoSPARC from running correctly.

  1. Ensure cryoSPARC is turned off:

cryosparcm stop

  1. Then, ensure no zombie processes are still running. Kill the processes if they are.

ps -ax | grep “supervisord” (kill only the process that is running from your cryoSPARC install)
ps -ax | grep “cryosparc_command” (kill all the matching processes related to your cryoSPARC
ps -ax | grep “mongod” (kill only the process running your cryoSPARC database)

e.g. kill 82681

  1. Remove the socket file inside the /tmp folder


  1. Start cryoSPARC:

cryosparcm start

cryosparcm status

Please let me know if that helps.

- Suhail

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Hello Suhail,

This solved the issue of the webapp not loading – Thank you!!

1 Like