Which programming language is InfluxDB written in?

InfluxDB is written in Go, a programming language developed by Google known for its efficiency, concurrency support, and ease of deployment. Go's strengths in handling concurrent processes make it particularly well-suited for time-series data, which is the primary focus of InfluxDB. The language's ability to compile to a single binary simplifies the deployment of InfluxDB instances, making it easier to manage in various environments.

While Python, C++, and Java are all powerful languages in their own right, they do not reflect the specific design choices that InfluxDB's developers made in terms of performance and deployment simplicity, which are key features driven by Go's capabilities. Thus, Go is the ideal choice for the requirements that InfluxDB addresses.