Which is a Prometheus data type?
Prometheus has four primary metric types to query for via PromQL: counters, gauges, histograms, and summaries. These metric types fulfill the needs or requirements for most use cases, and are found in Prometheus’ official client libraries: Go, Java, Ruby, and Python.
What is Help and type in Prometheus?
the HELP text contains the metric name plus any description that was configured. the TYPE contains the metric name plus the type of the metric, in this case gauge. the metric value is published using the standard Prometheus format of the name, any labels, followed by the value.
What does Prometheus measure?
Prometheus scrapes metrics from instrumented jobs, either directly or via an intermediary push gateway for short-lived jobs. It stores all scraped samples locally and runs rules over this data to either aggregate and record new time series from existing data or generate alerts.
What is a Prometheus metric?
Prometheus is a metrics collection and alerting tool developed and released to open source by SoundCloud. Prometheus is similar in design to Google’s Borgmon monitoring system, and a relatively modest system can handle collecting hundreds of thousands of metrics every second.
How does histogram work in Prometheus?
A Prometheus histogram consists of three elements: a _count counting the number of samples; a _sum summing up the value of all samples; and finally a set of multiple buckets _bucket with a label le which contains a count of all samples whose value are less than or equal to the numeric value contained in the le label.
Who built Prometheus?
SoundCloud
Prometheus® is an open source monitoring system developed by engineers at SoundCloud in 2012. In 2016, Prometheus was the second project accepted into the Cloud Native Computing Foundation after Kubernetes, and also to the second to graduate in 2018.
What are exporters in Prometheus?
A Prometheus Exporter is a piece of software that. Can fetch statistics from another, non-Prometheus system. Can turn those statistics into Prometheus metrics, using a client library. Starts a web server that exposes a /metrics URL, and have that URL display the system metrics.
What are metric types?
Metric kind
- A gauge metric, in which the value measures a specific instant in time.
- A delta metric, in which the value measures the change since it was last recorded.
- A cumulative metric, in which the value constantly increases over time.
What is graphite vs Grafana?
Grafana is a powerful platform for monitoring and time-series data analysis. Graphite is a system for data collection and visualization. Graphite is strong in time-series metrics collection, but Grafana provides a more advanced solution for data analysis and visualization.