6.127. terminatenodeconnections(integer)

Function Properties

Language: PLPGSQL

Return Type: integer

terminates all backends that have registered to be from the given node

declare
	p_failed_node	alias for $1;
	v_row			record;
begin
	for v_row in select nl_nodeid, nl_conncnt,
			nl_backendpid from sl_nodelock
			where nl_nodeid = p_failed_node for update
	loop
		perform killBackend(v_row.nl_backendpid, 'TERM');
		delete from sl_nodelock
			where nl_nodeid = v_row.nl_nodeid
			and nl_conncnt = v_row.nl_conncnt;
	end loop;

	return 0;
end;