horizontal scaling
Increase capacity by running more service instances.
Use this when One instance cannot handle the measured workload.
without the term
“The server can't keep up with traffic. Should we just run more copies of it? Will anything break, like scheduled jobs running twice?”
with the term · How do you ask a model for horizontal scaling?
Evaluate horizontal scaling for this workload. Test two instances, shared state, and downstream limits, and compare capacity with the single-instance baseline.
What is horizontal scaling?
Horizontal scaling adds instances to share work. Stateless request handling is easier to distribute; stateful systems need deliberate partitioning, replication, or shared storage and coordination.
Why does horizontal scaling matter when vibe coding?
Duplicating a process can duplicate scheduled jobs or exceed connection limits.
How do you do horizontal scaling?
Find the bottleneck and account for shared resources before adding replicas.
What goes wrong with horizontal scaling?
Adding instances while a shared database, hot key, or serialized operation remains the bottleneck.
Sources for this entry
- Microsoft: Scaling and partitioning
Vertical resource increases, horizontal instance increases, bottlenecks, and state distribution.
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