t1

gistfile1.txt

#  tar xvf prometheus-1.6.3.linux-amd64.tar
# cd  prometheus-1.6.3.linux-amd64




prometheus表达式使用

获取特定名字的job的http请求数目
http_requests_total{job=~"server$"}

获取返回状态不为4xx的请求
http_requests_total{status!~"^4..$"}

以5分钟为窗口，获取指标的增长速度
rate(http_requests_total[5m])

通过job纬度做聚合处理
sum(rate(http_requests_total[5m])) by (job)
或者
sum by (job) (rate(http_requests_total[5m]))


topk(10, sum(mysql_info_schema_table_size{instance="$host", component!="data_free"}) by (schema, table)) > 0
topk(5, sum(mysql_info_schema_table_size{instance="$host", component="data_free"}) by (schema, table)) > 0


https://www.howtoing.com/how-to-query-prometheus-on-ubuntu-14-04-part-1/