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3b89616d82
This offers new semantics in allowing on() for matching two single-element vectors with no known common labels. Previosuly this was often done using on(dummy). This also allows making it explict that you meant to do an aggregation without labels via by(). Fixes #1597.
350 lines
14 KiB
Plaintext
350 lines
14 KiB
Plaintext
load 5m
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http_requests{job="api-server", instance="0", group="production"} 0+10x10
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http_requests{job="api-server", instance="1", group="production"} 0+20x10
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http_requests{job="api-server", instance="0", group="canary"} 0+30x10
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http_requests{job="api-server", instance="1", group="canary"} 0+40x10
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http_requests{job="app-server", instance="0", group="production"} 0+50x10
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http_requests{job="app-server", instance="1", group="production"} 0+60x10
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http_requests{job="app-server", instance="0", group="canary"} 0+70x10
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http_requests{job="app-server", instance="1", group="canary"} 0+80x10
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load 5m
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vector_matching_a{l="x"} 0+1x100
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vector_matching_a{l="y"} 0+2x50
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vector_matching_b{l="x"} 0+4x25
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eval instant at 50m SUM(http_requests) BY (job) - COUNT(http_requests) BY (job)
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{job="api-server"} 996
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{job="app-server"} 2596
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eval instant at 50m 2 - SUM(http_requests) BY (job)
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{job="api-server"} -998
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{job="app-server"} -2598
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eval instant at 50m 1000 / SUM(http_requests) BY (job)
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{job="api-server"} 1
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{job="app-server"} 0.38461538461538464
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eval instant at 50m SUM(http_requests) BY (job) - 2
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{job="api-server"} 998
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{job="app-server"} 2598
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eval instant at 50m SUM(http_requests) BY (job) % 3
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{job="api-server"} 1
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{job="app-server"} 2
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eval instant at 50m SUM(http_requests) BY (job) ^ 2
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{job="api-server"} 1000000
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{job="app-server"} 6760000
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eval instant at 50m SUM(http_requests) BY (job) % 3 ^ 2
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{job="api-server"} 1
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{job="app-server"} 8
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eval instant at 50m SUM(http_requests) BY (job) % 2 ^ (3 ^ 2)
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{job="api-server"} 488
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{job="app-server"} 40
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eval instant at 50m SUM(http_requests) BY (job) % 2 ^ 3 ^ 2
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{job="api-server"} 488
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{job="app-server"} 40
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eval instant at 50m SUM(http_requests) BY (job) % 2 ^ 3 ^ 2 ^ 2
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{job="api-server"} 1000
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{job="app-server"} 2600
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eval instant at 50m COUNT(http_requests) BY (job) ^ COUNT(http_requests) BY (job)
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{job="api-server"} 256
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{job="app-server"} 256
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eval instant at 50m SUM(http_requests) BY (job) / 0
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{job="api-server"} +Inf
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{job="app-server"} +Inf
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eval instant at 50m SUM(http_requests) BY (job) + SUM(http_requests) BY (job)
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{job="api-server"} 2000
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{job="app-server"} 5200
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eval instant at 50m http_requests{job="api-server", group="canary"}
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http_requests{group="canary", instance="0", job="api-server"} 300
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http_requests{group="canary", instance="1", job="api-server"} 400
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eval instant at 50m http_requests{job="api-server", group="canary"} + rate(http_requests{job="api-server"}[5m]) * 5 * 60
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{group="canary", instance="0", job="api-server"} 330
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{group="canary", instance="1", job="api-server"} 440
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eval instant at 50m rate(http_requests[25m]) * 25 * 60
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{group="canary", instance="0", job="api-server"} 150
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{group="canary", instance="0", job="app-server"} 350
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{group="canary", instance="1", job="api-server"} 200
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{group="canary", instance="1", job="app-server"} 400
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{group="production", instance="0", job="api-server"} 50
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{group="production", instance="0", job="app-server"} 249.99999999999997
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{group="production", instance="1", job="api-server"} 100
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{group="production", instance="1", job="app-server"} 300
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eval instant at 50m http_requests{group="canary"} and http_requests{instance="0"}
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http_requests{group="canary", instance="0", job="api-server"} 300
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http_requests{group="canary", instance="0", job="app-server"} 700
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eval instant at 50m (http_requests{group="canary"} + 1) and http_requests{instance="0"}
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{group="canary", instance="0", job="api-server"} 301
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{group="canary", instance="0", job="app-server"} 701
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eval instant at 50m (http_requests{group="canary"} + 1) and on(instance, job) http_requests{instance="0", group="production"}
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{group="canary", instance="0", job="api-server"} 301
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{group="canary", instance="0", job="app-server"} 701
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eval instant at 50m (http_requests{group="canary"} + 1) and on(instance) http_requests{instance="0", group="production"}
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{group="canary", instance="0", job="api-server"} 301
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{group="canary", instance="0", job="app-server"} 701
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eval instant at 50m (http_requests{group="canary"} + 1) and ignoring(group) http_requests{instance="0", group="production"}
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{group="canary", instance="0", job="api-server"} 301
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{group="canary", instance="0", job="app-server"} 701
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eval instant at 50m (http_requests{group="canary"} + 1) and ignoring(group, job) http_requests{instance="0", group="production"}
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{group="canary", instance="0", job="api-server"} 301
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{group="canary", instance="0", job="app-server"} 701
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eval instant at 50m http_requests{group="canary"} or http_requests{group="production"}
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http_requests{group="canary", instance="0", job="api-server"} 300
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http_requests{group="canary", instance="0", job="app-server"} 700
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http_requests{group="canary", instance="1", job="api-server"} 400
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http_requests{group="canary", instance="1", job="app-server"} 800
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http_requests{group="production", instance="0", job="api-server"} 100
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http_requests{group="production", instance="0", job="app-server"} 500
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http_requests{group="production", instance="1", job="api-server"} 200
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http_requests{group="production", instance="1", job="app-server"} 600
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# On overlap the rhs samples must be dropped.
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eval instant at 50m (http_requests{group="canary"} + 1) or http_requests{instance="1"}
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{group="canary", instance="0", job="api-server"} 301
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{group="canary", instance="0", job="app-server"} 701
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{group="canary", instance="1", job="api-server"} 401
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{group="canary", instance="1", job="app-server"} 801
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http_requests{group="production", instance="1", job="api-server"} 200
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http_requests{group="production", instance="1", job="app-server"} 600
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# Matching only on instance excludes everything that has instance=0/1 but includes
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# entries without the instance label.
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eval instant at 50m (http_requests{group="canary"} + 1) or on(instance) (http_requests or cpu_count or vector_matching_a)
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{group="canary", instance="0", job="api-server"} 301
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{group="canary", instance="0", job="app-server"} 701
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{group="canary", instance="1", job="api-server"} 401
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{group="canary", instance="1", job="app-server"} 801
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vector_matching_a{l="x"} 10
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vector_matching_a{l="y"} 20
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eval instant at 50m (http_requests{group="canary"} + 1) or ignoring(l, group, job) (http_requests or cpu_count or vector_matching_a)
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{group="canary", instance="0", job="api-server"} 301
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{group="canary", instance="0", job="app-server"} 701
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{group="canary", instance="1", job="api-server"} 401
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{group="canary", instance="1", job="app-server"} 801
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vector_matching_a{l="x"} 10
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vector_matching_a{l="y"} 20
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eval instant at 50m http_requests{group="canary"} unless http_requests{instance="0"}
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http_requests{group="canary", instance="1", job="api-server"} 400
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http_requests{group="canary", instance="1", job="app-server"} 800
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eval instant at 50m http_requests{group="canary"} unless on(job) http_requests{instance="0"}
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eval instant at 50m http_requests{group="canary"} unless on(job, instance) http_requests{instance="0"}
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http_requests{group="canary", instance="1", job="api-server"} 400
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http_requests{group="canary", instance="1", job="app-server"} 800
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eval instant at 50m http_requests{group="canary"} / on(instance,job) http_requests{group="production"}
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{instance="0", job="api-server"} 3
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{instance="0", job="app-server"} 1.4
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{instance="1", job="api-server"} 2
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{instance="1", job="app-server"} 1.3333333333333333
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eval instant at 50m http_requests{group="canary"} unless ignoring(group, instance) http_requests{instance="0"}
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eval instant at 50m http_requests{group="canary"} unless ignoring(group) http_requests{instance="0"}
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http_requests{group="canary", instance="1", job="api-server"} 400
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http_requests{group="canary", instance="1", job="app-server"} 800
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eval instant at 50m http_requests{group="canary"} / ignoring(group) http_requests{group="production"}
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{instance="0", job="api-server"} 3
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{instance="0", job="app-server"} 1.4
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{instance="1", job="api-server"} 2
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{instance="1", job="app-server"} 1.3333333333333333
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# https://github.com/prometheus/prometheus/issues/1489
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eval instant at 50m http_requests AND ON (dummy) vector(1)
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http_requests{group="canary", instance="0", job="api-server"} 300
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http_requests{group="canary", instance="0", job="app-server"} 700
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http_requests{group="canary", instance="1", job="api-server"} 400
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http_requests{group="canary", instance="1", job="app-server"} 800
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http_requests{group="production", instance="0", job="api-server"} 100
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http_requests{group="production", instance="0", job="app-server"} 500
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http_requests{group="production", instance="1", job="api-server"} 200
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http_requests{group="production", instance="1", job="app-server"} 600
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eval instant at 50m http_requests AND IGNORING (group, instance, job) vector(1)
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http_requests{group="canary", instance="0", job="api-server"} 300
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http_requests{group="canary", instance="0", job="app-server"} 700
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http_requests{group="canary", instance="1", job="api-server"} 400
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http_requests{group="canary", instance="1", job="app-server"} 800
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http_requests{group="production", instance="0", job="api-server"} 100
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http_requests{group="production", instance="0", job="app-server"} 500
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http_requests{group="production", instance="1", job="api-server"} 200
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http_requests{group="production", instance="1", job="app-server"} 600
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# Comparisons.
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eval instant at 50m SUM(http_requests) BY (job) > 1000
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{job="app-server"} 2600
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eval instant at 50m 1000 < SUM(http_requests) BY (job)
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{job="app-server"} 1000
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eval instant at 50m SUM(http_requests) BY (job) <= 1000
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{job="api-server"} 1000
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eval instant at 50m SUM(http_requests) BY (job) != 1000
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{job="app-server"} 2600
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eval instant at 50m SUM(http_requests) BY (job) == 1000
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{job="api-server"} 1000
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eval instant at 50m SUM(http_requests) BY (job) == bool 1000
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{job="api-server"} 1
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{job="app-server"} 0
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eval instant at 50m SUM(http_requests) BY (job) == bool SUM(http_requests) BY (job)
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{job="api-server"} 1
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{job="app-server"} 1
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eval instant at 50m SUM(http_requests) BY (job) != bool SUM(http_requests) BY (job)
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{job="api-server"} 0
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{job="app-server"} 0
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eval instant at 50m 0 == bool 1
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0
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eval instant at 50m 1 == bool 1
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1
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# group_left/group_right.
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clear
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load 5m
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node_var{instance="abc",job="node"} 2
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node_role{instance="abc",job="node",role="prometheus"} 1
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load 5m
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node_cpu{instance="abc",job="node",mode="idle"} 3
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node_cpu{instance="abc",job="node",mode="user"} 1
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node_cpu{instance="def",job="node",mode="idle"} 8
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node_cpu{instance="def",job="node",mode="user"} 2
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load 5m
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random{foo="bar"} 1
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load 5m
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threshold{instance="abc",job="node",target="a@b.com"} 0
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# Copy machine role to node variable.
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eval instant at 5m node_role * on (instance) group_right (role) node_var
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{instance="abc",job="node",role="prometheus"} 2
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eval instant at 5m node_var * on (instance) group_left (role) node_role
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{instance="abc",job="node",role="prometheus"} 2
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eval instant at 5m node_var * ignoring (role) group_left (role) node_role
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{instance="abc",job="node",role="prometheus"} 2
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eval instant at 5m node_role * ignoring (role) group_right (role) node_var
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{instance="abc",job="node",role="prometheus"} 2
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# Copy machine role to node variable with instrumentation labels.
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eval instant at 5m node_cpu * ignoring (role, mode) group_left (role) node_role
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{instance="abc",job="node",mode="idle",role="prometheus"} 3
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{instance="abc",job="node",mode="user",role="prometheus"} 1
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eval instant at 5m node_cpu * on (instance) group_left (role) node_role
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{instance="abc",job="node",mode="idle",role="prometheus"} 3
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{instance="abc",job="node",mode="user",role="prometheus"} 1
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# Ratio of total.
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eval instant at 5m node_cpu / on (instance) group_left sum by (instance,job)(node_cpu)
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{instance="abc",job="node",mode="idle"} .75
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{instance="abc",job="node",mode="user"} .25
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{instance="def",job="node",mode="idle"} .80
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{instance="def",job="node",mode="user"} .20
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eval instant at 5m sum by (mode, job)(node_cpu) / on (job) group_left sum by (job)(node_cpu)
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{job="node",mode="idle"} 0.7857142857142857
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{job="node",mode="user"} 0.21428571428571427
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eval instant at 5m sum(sum by (mode, job)(node_cpu) / on (job) group_left sum by (job)(node_cpu))
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{} 1.0
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eval instant at 5m node_cpu / ignoring (mode) group_left sum without (mode)(node_cpu)
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{instance="abc",job="node",mode="idle"} .75
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{instance="abc",job="node",mode="user"} .25
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{instance="def",job="node",mode="idle"} .80
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{instance="def",job="node",mode="user"} .20
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eval instant at 5m node_cpu / ignoring (mode) group_left(dummy) sum without (mode)(node_cpu)
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{instance="abc",job="node",mode="idle"} .75
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{instance="abc",job="node",mode="user"} .25
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{instance="def",job="node",mode="idle"} .80
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{instance="def",job="node",mode="user"} .20
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eval instant at 5m sum without (instance)(node_cpu) / ignoring (mode) group_left sum without (instance, mode)(node_cpu)
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{job="node",mode="idle"} 0.7857142857142857
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{job="node",mode="user"} 0.21428571428571427
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eval instant at 5m sum(sum without (instance)(node_cpu) / ignoring (mode) group_left sum without (instance, mode)(node_cpu))
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{} 1.0
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# Copy over label from metric with no matching labels, without having to list cross-job target labels ('job' here).
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eval instant at 5m node_cpu + on(dummy) group_left(foo) random*0
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{instance="abc",job="node",mode="idle",foo="bar"} 3
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{instance="abc",job="node",mode="user",foo="bar"} 1
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{instance="def",job="node",mode="idle",foo="bar"} 8
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{instance="def",job="node",mode="user",foo="bar"} 2
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# Use threshold from metric, and copy over target.
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eval instant at 5m node_cpu > on(job, instance) group_left(target) threshold
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node_cpu{instance="abc",job="node",mode="idle",target="a@b.com"} 3
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node_cpu{instance="abc",job="node",mode="user",target="a@b.com"} 1
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# Use threshold from metric, and a default (1) if it's not present.
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eval instant at 5m node_cpu > on(job, instance) group_left(target) (threshold or on (job, instance) (sum by (job, instance)(node_cpu) * 0 + 1))
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node_cpu{instance="abc",job="node",mode="idle",target="a@b.com"} 3
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node_cpu{instance="abc",job="node",mode="user",target="a@b.com"} 1
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node_cpu{instance="def",job="node",mode="idle"} 8
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node_cpu{instance="def",job="node",mode="user"} 2
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clear
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load 5m
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random{foo="bar"} 2
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metricA{baz="meh"} 3
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metricB{baz="meh"} 4
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# On with no labels, for metrics with no common labels.
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eval instant at 5m random + on() metricA
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{} 5
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# Ignoring with no labels is the same as no ignoring.
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eval instant at 5m metricA + ignoring() metricB
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{baz="meh"} 7
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eval instant at 5m metricA + metricB
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{baz="meh"} 7
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