This command reload all the process in a watcher or all watchers. If a the option send_hup is set to true in a watcher then the HUP signal will be sent to the process.A graceful reload follow the following process:
{
"command": "reload",
"propeties": {
"name": '<name>",
"graceful": true
}
}
The response return the status “ok”. If the property graceful is set to true the processes will be exited gracefully.
If the property name is present, then the reload will be applied to the watcher.