prometheus/promql/testdata/aggregators.test

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load 5m
http_requests{job="api-server", instance="0", group="production"} 0+10x10
http_requests{job="api-server", instance="1", group="production"} 0+20x10
http_requests{job="api-server", instance="0", group="canary"} 0+30x10
http_requests{job="api-server", instance="1", group="canary"} 0+40x10
http_requests{job="app-server", instance="0", group="production"} 0+50x10
http_requests{job="app-server", instance="1", group="production"} 0+60x10
http_requests{job="app-server", instance="0", group="canary"} 0+70x10
http_requests{job="app-server", instance="1", group="canary"} 0+80x10
# Simple sum.
eval instant at 50m SUM BY (group) (http_requests{job="api-server"})
{group="canary"} 700
{group="production"} 300
# Test alternative "by"-clause order.
eval instant at 50m sum by (group) (http_requests{job="api-server"})
{group="canary"} 700
{group="production"} 300
# Simple average.
eval instant at 50m avg by (group) (http_requests{job="api-server"})
{group="canary"} 350
{group="production"} 150
# Simple count.
eval instant at 50m count by (group) (http_requests{job="api-server"})
{group="canary"} 2
{group="production"} 2
# Lower-cased aggregation operators should work too.
eval instant at 50m sum(http_requests) by (job) + min(http_requests) by (job) + max(http_requests) by (job) + avg(http_requests) by (job)
{job="app-server"} 4550
{job="api-server"} 1750
# Test alternative "by"-clause order with "keep_common".
eval instant at 50m sum by (group) keep_common (http_requests{job="api-server"})
{group="canary", job="api-server"} 700
{group="production", job="api-server"} 300
# Test both alternative "by"-clause orders in one expression.
# Public health warning: stick to one form within an expression (or even
# in an organization), or risk serious user confusion.
eval instant at 50m sum(sum by (group) keep_common (http_requests{job="api-server"})) by (job)
{job="api-server"} 1000
# Standard deviation and variance.
eval instant at 50m stddev(http_requests)
{} 229.12878474779
eval instant at 50m stddev by (instance)(http_requests)
{instance="0"} 223.60679774998
{instance="1"} 223.60679774998
eval instant at 50m stdvar(http_requests)
{} 52500
eval instant at 50m stdvar by (instance)(http_requests)
{instance="0"} 50000
{instance="1"} 50000
# Regression test for missing separator byte in labelsToGroupingKey.
clear
load 5m
label_grouping_test{a="aa", b="bb"} 0+10x10
label_grouping_test{a="a", b="abb"} 0+20x10
eval instant at 50m sum(label_grouping_test) by (a, b)
{a="a", b="abb"} 200
{a="aa", b="bb"} 100
# Tests for min/max.
clear
load 5m
http_requests{job="api-server", instance="0", group="production"} 1
http_requests{job="api-server", instance="1", group="production"} 2
http_requests{job="api-server", instance="0", group="canary"} NaN
http_requests{job="api-server", instance="1", group="canary"} 3
http_requests{job="api-server", instance="2", group="canary"} 4
eval instant at 0m max(http_requests)
{} 4
eval instant at 0m min(http_requests)
{} 1
eval instant at 0m max by (group) (http_requests)
{group="production"} 2
{group="canary"} 4
eval instant at 0m min by (group) (http_requests)
{group="production"} 1
{group="canary"} 3