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Understanding PromQL
Welcome
Overview
Prerequisites
PromQL Theory: Selectors
Types of Expressions
Vector vs Range Vector
Selectors
Selector Safety
Instant Vector Staleness
Range Vectors
Time from when?
Exercise: Use Selectors
PromQL Theory: Functions
Functions
Math Functions
Clamping
Timestamps
Time and Dates
Gauge Range Vectors
Counter Range Vectors
Aggregating Across Time
Subqueries
Histograms
Switching Types
Altering Labels
Sorting
Missing values
Other Functions
Quiz
Aggregators and Operators
Aggregators
Choosing Output Labels
Operators
Arithmetic
Simple Binary Operator Matching
Matching Your Time Series
Many to One
Comparison Operators
Bool vs Filtering
Logical/Set Operators
Quiz
PromQL in Practice
From Theory to Practice
Common Query Patterns in PromQL
Pitfalls When Aggregating
Machine Role Labels
Threshold from a Metric
Combining Alert Conditions
Finding Big Metrics
Accessing PromQL
Accessing PromQL
HTTP API
Query Range Computational Model
Getting Data Aligned to a Day
Recording Rules
When to use rules?
Rule Naming
Using Rules
Rule Anti-Patterns
Review
Review
Logical/Set Operators
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