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From Marc Sturlese <marc.sturl...@gmail.com>
Subject Re: number of Solr indexes per Tomcat instance
Date Fri, 23 Oct 2009 15:26:04 GMT

Probably multicore would give you better performance... I think most
important factors to take into account are the size of the index and the
traffic you have to hold. With enought RAM memory you can hold 40 cores in a
singe solr instance (or even more) but depending on the traffic you have to
hold you will suffer of slow response times.

Erik_l wrote:
> 
> We're not using multicore. Today, one Tomcat instance host a number of
> indexes in form of 10 Solr indexes (10 individual war files).
> 
> 
> Marc Sturlese wrote:
>> 
>> Are you using one single solr instance with multicore or multiple solr
>> instances with one index each?
>> 
>> Erik_l wrote:
>>> 
>>> Hi,
>>> 
>>> Currently we're running 10 Solr indexes inside a single Tomcat6
>>> instance. In the near future we would like to add another 30-40 indexes
>>> to every Tomcat instance we host. What are the factors we have to take
>>> into account when planning for such deployments? Obviously we do know
>>> the sizes of the indexes but for example how much memory does Solr need
>>> to be allocated given that each index is treated as a webapp in Tomcat.
>>> Also, do you know if Tomcat has got a limit in number of apps that can
>>> be deployed (maybe I should ask this questions in a Tomcat forum). 
>>> 
>>> Thanks
>>> E
>>> 
>> 
>> 
> 
> 

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