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AWS AmazonRDS documentation change

Service: AmazonRDS · 2026-01-22 · Documentation low

File: AmazonRDS/latest/UserGuide/oracle-cdb-configuring.modifying.pdb.md

Summary

Added documentation that tenant modifications require replication health validation (<5min lag) when read replicas exist and can only be performed on primary instances.

Security assessment

Changes describe data consistency mechanisms for replication scenarios. No security vulnerabilities, exploits, or weaknesses are mentioned or addressed in the modifications.

Diff

diff --git a/AmazonRDS/latest/UserGuide/oracle-cdb-configuring.modifying.pdb.md b/AmazonRDS/latest/UserGuide/oracle-cdb-configuring.modifying.pdb.md
index 308f32343..b286b7f05 100644
--- a//AmazonRDS/latest/UserGuide/oracle-cdb-configuring.modifying.pdb.md
+++ b//AmazonRDS/latest/UserGuide/oracle-cdb-configuring.modifying.pdb.md
@@ -14,0 +15,2 @@ You can modify only the PDB name and the master user password of a tenant databa
+  * If your DB instance has read replicas, you can only modify tenants on the primary DB instance. Replication health is also validated, ensuring the replicas are available and replication lag is less than 5 minutes before the tenant is modified.
+