过流保护为什么要设两个时限

页面:/news/view-2170673/ | 耗时:0.5984 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=2170673 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2170673 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2170673 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(133919,1088774,127666,307201,1111796,138623,1065155,1388003,154687,114033,2069999,1126829,1058215,109739,215256,1409599,124580,1074888,123551,3108971,1096747,150669,2956710,1062618,2331663,137675,136891,120019,156850,1093140) ORDER BY field (ArticleID,133919,1088774,127666,307201,1111796,138623,1065155,1388003,154687,114033,2069999,1126829,1058215,109739,215256,1409599,124580,1074888,123551,3108971,1096747,150669,2956710,1062618,2331663,137675,136891,120019,156850,1093140)