Ravi Sir's Cards › AWS
Cluster endpoint vs instance endpoint?
What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.
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What this card says
What it is
Cluster endpoint points at the current writer; instance endpoints target a specific instance.
Why it matters
Apps usually use the cluster endpoint so failover moves the writer automatically.
How / example
mysql -h cluster-endpoint … for writes; optional reader endpoint for read scale.