Backgorund

Problems

    As IoTDB becomes more and more complex, some system operating metric need to be monitored to improve the operational viability and robustness of the system. IoTDB does not have a relatively complete metric collector to support the collection of some system operating metric now, so it is necessary to design a set of metric acquisition system.

    There are some widely used metric acquisition library in the open source community, such as Dropwizard metrics, micrometer, and dubbo metrics, that can be considered for adaptation. Considering that IoTDB is a real-time online system, according to the experience of previously collected metrics leading to a significant drop in performance, these metrics library may not be able to meet the needs of IoTDB in terms of performance.

    Therefore, we develop a set of metric acquisition interfaces and adapt it to other mature acquisition libraries to achieve the benefits of flexible switching and easy target optimization.

Targets

Provides a set of metric collector interfaces

A set of adaptation implementations based on micrometer

A set of adaptation implementations based on dropwizard

Test metric creation and query performance on miceometer and dropwizard.