Design a Distributed Lock Service · System Design Interview

Design a Distributed Lock ServiceDesign the service other teams call to make sure only one machine in the fleet is doing a particular thing at a time.What it has to do

Only one holder has a given lock at any moment

A lock held by a machine that dies becomes available again

A holder can extend its lock while it is still working

Scale

Lock operations per second: 400,000

Distinct lock names: 50 million

Out of scope

What the holder does while it holds the lock

Access control

The client library’s API

Practise this challengeAll system design challenges

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