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From Michał Michalski <>
Subject Re: Why don't you start off with a “single & small” Cassandra server as you usually do it with MySQL?
Date Wed, 18 Sep 2013 13:38:16 GMT
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W dniu 18.09.2013 15:34, Ertio Lew pisze:
> For any website just starting out, the load initially is minimal & grows
> with a slow pace initially. People usually start with their MySQL based
> sites with a single server(***that too a VPS not a dedicated server)
> running as both app server as well as DB server & usually get too far with
> this setup & only as they feel the need they separate the DB from the app
> server giving it a separate VPS server. This is what a start up expects the
> things to be while planning about resources procurement.
> But so far what I have seen, it's something very different with Cassandra.
> People usually recommend starting out with atleast a 3 node cluster, (on
> dedicated servers) with lots & lots of RAM. 4GB or 8GB RAM is what they
> suggest to start with. So is it that Cassandra requires more hardware
> resources in comparison to MySQL, for a website to deliver similar
> performance, serve similar load/ traffic & same amount of data. I
> understand about higher storage requirements of Cassandra due to
> replication but what about other hardware resources ?
> Can't we start off with Cassandra based apps just like MySQL. Starting with
> 1 or 2 VPS & adding more whenever there's a need ?
> I don't want to compare apples with oranges. I just want to know how much
> more dangerous situation I may be in when I start out with a single node
> VPS based cassandra installation Vs a single node VPS based MySQL
> installation. Difference between these two situations. Are cassandra
> servers more prone to be unavailable than MySQL servers ? What is bad if I
> put tomcat too along with Cassandra as people use LAMP stack on single
> server.
> ---------
> *This question is also posted at StackOverflow
> here<>
> &
> has an open bounty worth +50 rep.*

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