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From "Hiller, Dean" <>
Subject Re: multitenant support with key spaces
Date Mon, 06 May 2013 17:25:40 GMT
Another option may be virtual column families with PlayOrm.  We currently
do around 60,000 column families to store data from 60,000 different
sensors that keep feeding us information.


On 5/6/13 11:18 AM, "Robert Coli" <> wrote:

>On Sun, May 5, 2013 at 11:37 PM, Darren Smythe <>
>> How many keyspaces can you reasonably have?
>"Very Low Hundreds", though this relates more to CFs than Ks.
>> If we have 1000 customers, so one KS per customer is 1000 keyspaces. Is
>> something C* can handle efficiently?
>> I guess the same question applies to our notion of breaking up the
>> families into time ranges. We're naively trying to avoid having few
>> CFs/KSs. Is/should that be a concern?
>Very large rows are significantly worse than very large CFs or KS.

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