Imports
- github.com/toolkits/pool/simple_conn_pool
- github.com/toolkits/consistent/rings
- github.com/Cepave/open-falcon-backend/common/model
- github.com/Cepave/open-falcon-backend/common/utils
- github.com/Cepave/open-falcon-backend/modules/query/g
- github.com/sirupsen/logrus
- github.com/toolkits/container/set