MySQL 的 Parallel Replication

Multithreaded Replication to the Rescue」這篇提到了 Replication 的 Parallel Worker 機制。

作者給了平行的數量對 replication lag 的影響:

可以看得出來 Parallel Worker 機制對 Replication Lag 改善頗大,不過作者在 comment 提到中雷了:「MTS breaks in after restart」。

對於還在使用 traditional master-slave 架構的人可以參考看看。

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