使用AWS re:Post即您表示您同意 AWS re:Post 使用条款

How to enable Logical Replication for existing Aurora PG 13 Cluster?

0

We are considering enabling logical (streaming) replication on our existing Aurora PG 13 cluster for CDC?

We want to keep our aurora read replicas as is, but I haven't found good resource that explains how to achieve both, OR what is the implication for existing read replicas.

Our current understanding is that we might have to stand up 2x current nodes in our cluster which would be way too expensive for us.

已提问 3 年前2120 查看次数
2 回答
2

You can enable logical replication by setting the parameter rds.logical_replication parameter in Cluster Parameter group. There will not be any impact on the existing Aurora replicas/reader instances in the cluster. Additionally, you do not need to add new instances in the cluster just because the logical replication is enabled.

Refer - https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Replication.html#Aurora.Replication.AuroraPostgreSQL

AWS
已回答 3 年前
专家
已审核 3 年前
2

Thank you for reaching out. Since you mentioned CDC, I will also recommend you to review this document since it provides guidance on the enabling Logical replication for CDC. [Using a PostgreSQL database as an AWS DMS source - Enabling change data capture (CDC) using logical replication - https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Source.PostgreSQL.html#CHAP_Source.PostgreSQL.Security

AWS
支持工程师
已回答 3 年前
  • Thanks @arnab, the intention is to run CDC indefinitely (i.e we are not just migrating DB), does DMS still solve the problem cleanly and cost effectively?

您未登录。 登录 发布回答。

一个好的回答可以清楚地解答问题和提供建设性反馈,并能促进提问者的职业发展。

回答问题的准则