For AWS SPS07 Hana Developer grateful for a confirmation the screenshot shows the the prescribed way of terminating the statistics service (as opposed to any commands issued via SSH for example). This will be a useful confirmation to all those experiencing system catalog freezes:
Thanks.
EDIT - I don't think so, whether via Administration pane in screenshot above via SQL console:
altersystem stop service('<your server>',3<instancenumber>05) immediate;
given that the Hana administration guide indicates that the service is "typically restarted":