关于资源组big_query_cpu_second_limit设置的问题

我的sql执行时间是十几秒,但是匹配到资源组后会报超时的错误[42000][1064] exceed big query cpu limit: current is 500030970753ns but limit is 500000000000ns,这是我的资源组:
CREATE RESOURCE GROUP rg2
TO
(user=‘xx’, query_type in (‘xx’), source_ip=‘xxx/16’, db=‘xx’),

WITH (
‘cpu_core_limit’ = ‘2’,
‘mem_limit’ = ‘20%’,
‘big_query_cpu_second_limit’ = ‘500’,
‘big_query_scan_rows_limit’ = ‘1000000’,
‘big_query_mem_limit’ = ‘10737418240’
);
【StarRocks版本】3.1.10
【集群规模】1fe 1be