To restart a HAProxy instance from the NetScaler MAS GUI, you can select either hard restart or soft restart.
Hard restart terminates the HAProxy process on the instance and closes all the established connections. After the restart a new haproxy process is created and the subsequent new connections are processed by the new HAProxy process.
Soft restart unbinds the HAProxy process from the listening port, but the HAProxy process continues to process existing connections until they close. A new HAProxy process is created to process new connections.
1. Navigate to Networks > Instances > HAProxy and click the Instance tab.
2. On the Instance tab, select the HAProxy instance that you want to restart.
3. Click Hard Restart to hard restart the HAProxy instance or click Soft Restart to soft restart the HAProxy instance.