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Getting Started with Thanos

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profile: name: Wataru Matsui orz: [ zlab.co.jp, 3bi.tech ] twitter: @watawuwu role: [ Server, Infra, SRE ]

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Agenda ⊸ What’s Thanos ⊸ Why try Thanos & Key features ⊸ Design ⊸ Demo ⊸ Conclusions

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What’s Thanos?

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HA metric system with unlimited storage capacity for

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What’s Prometheus

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Monitoring system & time series database (時間が少ないので省略)

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Why try Thanos? And Key Features

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メトリクスデータを オブジェクトストレージ に保存できる Why try Thanos? POINT!! Reliable metrics data storage

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複数Prometheusの メトリクスデータを マージし閲覧できる Why try Thanos? Global view POINT!!

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ロングタームなクエリの応答性を維持 するため、メトリクスデータをダウンサ ンプリング Why try Thanos? Downsampling

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依存コンポーネントが少なく 既存のPrometheus環境に 追加することが簡単 Why try Thanos? Seamless integration

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Design

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Querier(Thanos) Prometheus targets Sidecar(Thanos) Prometheus Sidecar(Thanos) targets targets targets Merge & Deduplicate targets targets targets targets Global view HTTP API

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SSD Prometheus Sidecar(Thanos) targets targets targets Blocks targets targets targets Blocks Blocks targets targets targets Blocks targets targets targets Blocks Unlimited retention! Write

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Unlimited retention! Read targets targets targets Blocks Cache Store(Thanos) targets targets targets Blocks Querier(Thanos) Store API

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targets targets targets Blocks Disk Compactor(Thanos) targets targets targets Blocks Compaction & Downsampling Blocks Blocks

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targets targets targets Blocks Querier(Thanos) Prometheus Sidecar(Thanos) Full Architecture Store(Thanos) Compactor(Thanos)

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Use Case

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Only Backup Disk Prometheus Sidecar(Thanos) targets targets targets Blocks targets targets targets Blocks Blocks targets targets targets Blocks targets targets targets Blocks

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Querier(Thanos) Prometheus Sidecar(Thanos) Prometheus Sidecar(Thanos) HA or Aggregate

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targets targets targets Blocks Querier(Thanos) Prometheus Sidecar(Thanos) All Store(Thanos) Compactor(Thanos)

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Demo

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No content

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Notice

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Prometheus >= v2.0.0 可能であればv2.2.1

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Conclusions

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2018/07/04時点 Thanos has no official releases yet

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まだまだ動作検証中！ （カジュアルに使う分には問題ない）

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導入前には本当に長期間の保存 が必要か確認！？ ● 不要なデータを削減 ● スクラップ間隔と保存期間を見直す ● KPIデータは別のストレージを検討 ● 古いデータの価値（YAGNI） 場合によってはPrometheusだけでも十分！

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Thanks! WE ARE HIRING!! Kubernetes, Cloud Native zlab.co.jp