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Graphite Srinivas Singanamalla

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Monitoring

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What is Graphite? • System to capture metrics • Created by Chris Davis, an engineer at Orbitz • Metrics out of sequence 09:05:30 cpu 30 09:05:00 cpu 50

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Keep it Simple • $ echo "foo.bar 41 `date +%s`" | nc graphite- server.example.com 2003

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Components 3 Layer Architecture Metrics processor Whisper UI

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Whisper Database • Fixed size time series • Example – 10s:6h è 2160 points – 60s:1d

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Whisper Format metric_abc 9:30:00 15 10:00:00 20 Retention Policy: 30m:1h

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Carbon-cache

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Carbon-relay

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Carbon-aggregator

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Aggregation Example

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Using carbon-aggregator

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Summary • Graphite is kept Simple • Uses Whisper Storage • Carbon-cache daemon is most important

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Rollup • 10s:100y è 370MB

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Questions

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Detailed Diagram

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Basic Scenario

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Create Whisper • $ whisper-create.py foo.wsp 1m:2w 5m:3y