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Hi, If you are using postgres 9+, it is possible bugs on the wal in replication processes. Try to use updated version one: https://www.postgresql.org/about/news/postgresql-123-118-1013-9618-and-9522-released-2038/
I saw that there are one success read-replica, so for the terminated one please re-instantiated again new read replica. Also for best practices, you can do:
- Setup read-replica multi-az for more high availability
- Setup operational excellence, by subscribe into rds envets (such as db instance event for read - replica), so if read-replica crash you can trigger a workflow to initiate new one. https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_Events.Messages.html#USER_Events.Messages.cluster Thanks.
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