Name: Understanding PromQL
Author: Julius Volz

Understanding PromQL

Training Overview
Introduction
Resources
PromQL: The Big Picture
What is PromQL?
PromQL Execution in Prometheus
Use Cases
Data Model Refresher
Time Series Data Model
Metric Types
Basic Querying
Overview and Demo Service
Using the Expression Browser
Using PromLens
Selecting Series
Counter Rates and Increases
Gauge Derivatives and Predictions
Aggregating Over Dimensions
Binary Arithmetic on Time Series
Interlude: Language Theory
Overview
PromQL's Nested Structure
Expression Result Types
Expression Node Types
Query Types and Evaluation Time
Advanced Querying
Overview
Working with Histograms
Thresholds and Filtering by Value
Set Operations
Working with Timestamp Metrics
Sorting and topk / bottomk
Comparing to Past Data for Simple Anomaly Detection
Inspecting Scrape Health
Detecting Absent Series
Aggregating Over Time
Subqueries
Training Review
Summary
Further Steps

Comparing to Past Data for Simple Anomaly Detection

Initializing user data...