The task Service node sync in Plesk Multi Server installation fails:
CONFIG_TEXT: ERR HTTP 504 Gateway Time-out
ERR HTTP 504 Gateway Time-out
Insufficient timeout in sw-cp-server on both management and service nodes.
Perform these actions both on the management node and on the service node which failed to sync.
Connect to the server using SSH;
In the file
/etc/sw-cp-server/config, double the values of the parameters
Reload sw-cp-server to apply changes:
# service sw-cp-server reload
In Plesk on the management node, rerun the failed task in Tasks > Service node sync > Rerun.
If the task fails again, repeat steps 2-4.