I want to expose several metrics with their respective timestamps to Prometheus, for example:
test5{job_name="test05"} 15 1512982800000
test5{job_name="test05"} 10 1512986400000
test5{job_name="test05"} 6 1512990000000
test5{job_name="test05"} 20 1512990840000
test5{job_name="test05"} 25 1512993000000
test6{job_name="test06"} 2 1512987840000
test6{job_name="test06"} 3 1512991500000
test6{job_name="test06"} 4 1512991800000
test6{job_name="test06"} 5 1512991920000
test6{job_name="test06"} 6 1512992220000
test6{job_name="test06"} 6 1512996000000
test6{job_name="test06"} 7 1512996240000
test7{job_name="test07"} 1 1512909840000
test8{job_name="test08"} 2 1510317840000
But Prometheus only ingests metrics that have a timestamp corresponding to 1 hour before the current time, why?