← Back to BlogSystem Design course for beginners — scale systems from 1 to 1M users · Part 5 / 10
Read replicas (5/10): Read/write split at ~10K users
Read replicas, replication lag, read-your-writes, indexes, S3 exports—protect the primary DB.
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System Design course for beginners — scale systems from 1 to 1M users · Part 5/10▼
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What scale does part 5 cover?
Read replicas, replication lag, read-your-writes, indexes, S3 exports—protect the primary DB.
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