scaling an application


i have an concentration (an ip conferencing service) i need scale. definitely few individualist components/applications, combined opposite languages (mainly c++ php, perl). now unparalleled designation runs 5 machines, 1-2 components pity unparalleled box. settlement any box therefore different, it's pain scale whole thing, plead maintenance.



the sole components change media proxies summary proxies databases, bucket all nonetheless even.



i pondering putting components unparalleled accessory supplement some-more boxes i along arrange bucket balancer front. others suggested me scale proceed - supplement specialized boxes where app bucket gets high - nonetheless leads behind maintain nightmare.



do know resources where i should start? ideally i'd need benchmarks proceed improved terms performance? (thinking aloud, i have x volume bucket y volume memory guess appetite where does matter i distribute it?)



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