php - apache (httpd) load balancing -

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i have reached state in research understood database-driven web app (portal) can optimised replication / scaling (even sharding huge db) , employing solution mysql replication or clustering (percona).

the following question came in head thinking...

"ok, database can safely distributed users. happens if powerful machine 4 x xeon cpus + 16gb ram (max avail in pack i'm getting) cannot survive http requests?"

how can 1 tackle apache / httpd load-balancing ? there solutions ? maybe it's simple, don't see 1 right now.

no, there no "simple" solutions @ level.

although if it's research, not live site reaching point - there no point in theoretical musings. every application has it's own bottleneck have optimized, , there no way predict off head.

and http daemon though seldom being bottleneck. matter of fact, http daemon being load balancer itself, distributing requests between several application backends , serving static files of them.


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