Design a Metrics Store · System Design Interview

Design a Metrics StoreDesign how a monitoring product stores the metrics its agents report, and answers the queries a dashboard makes of them.What it has to do

Accept metric points, each with a name, a set of labels, a timestamp and a value

Answer a query for one series over a time range

Keep a year of history, at lower resolution the older it gets

Scale

Points ingested per second: 20 million

Active series: 500 million

Out of scope

Alerting rules and evaluation

The dashboard interface

Log and trace storage

Practise this challengeAll system design challenges

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