# Scaling Nextdoor’s Datastores: Part 2

- **期号**: SRE Weekly Issue #470（2025-03-30）
- **作者**: Tushar Singla — Nextdoor
- **链接**: https://engblog.nextdoor.com/scaling-nextdoors-datastores-part-2-513922e4b4b1

## 简介

This one is about the difficulties they had with database read replicas that led to developers mostly just sending reads to the primary.  They came up with a pretty neat solution to automatically send read queries to the replica when possible.

In case you missed it, here’s part 1.

## 正文

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