[普罗米修斯]你好！
我希望使用Prometheus的相应时间戳公开多个指标，例如：
test5 {job_name =＆＃34; test05＆＃34;} 15 1512982800000 test5 {job_name =＆＃34; test05＆＃34;} 10 1512986400000 test5 {job_name =＆＃34; test05＆＃34;} 6 1512990000000 test5 { job_name =＆＃34; test05＆＃34;} 20 1512990840000 test5 {job_name =＆＃34; test05＆＃34;} 25 1512993000000
test6 {job_name =＆＃34; test06＆＃34;} 2 1512987840000 test6 {job_name =＆＃34; test06＆＃34;} 3 1512991500000 test6 {job_name =＆＃34; test06＆＃34;} 4 1512991800000 test6 { job_name =＆＃34; test06＆＃34;} 5 1512991920000 test6 {job_name =＆＃34; test06＆＃34;} 6 1512992220000 test6 {job_name =＆＃34; test06＆＃34;} 6 1512996000000 test6 {job_name =＆＃34 ; test06＆＃34;} 7 1512996240000
test7 {job_name =＆＃34; test07＆＃34;} 1 1512909840000
test8 {job_name =＆＃34; test08＆＃34;} 2 1510317840000
然而，普罗米修斯只会删除时间戳小于当前时间不到一小时的指标。为什么？
谢谢！