Gerrit is a code review tool and a source code repository that software developers and operators use to store and analyze changes to source files, configurations, and Jenkins jobs prior to applying them in production. The Gerrit code review is based on a voting system that allows peer reviewers to approve or block changes, as well as to provide feedback.
A geographic region is a physical area defined by network latency. Within a geographic region, latency between any two nodes is no more than 5ms, and it is strongly recommended it to be less than or equal to 1ms. Latency between nodes in two geographic regions is equal to or more than 5ms.
Grafana is an open-source monitoring solution that provides graphical visualization for statistical metrics.