The “trace post” command runs for the time specified or defaults to 15 minutes. It creates a file with the string ‘trace’ in the vardir/log directory. The file gets created after the time interval specified. So there is no way to monitor its progress during the time it executes. There is no command to stop a trace.
To stop the trace on Post, the Post process will need to be stopped cleanly and then restarted. On target:
sp_ctrl>stop post [queue <queue_name>] (Make sure that it is “stopped by user” and not “stopping”. In case of latter give the Post process enough time to stop cleanly)