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From James Jory <>
Subject Re: Can Solr v1.4 and v4.0 co-exist in Tomcat?
Date Mon, 19 Nov 2012 19:54:22 GMT
Hi Ken-

We've been running 1.3 and 4.0 as separate web apps within the same Tomcat instance for the
last 3 weeks with no issues. The only challenge for us was refactoring our app client code
to use SolrJ 4.0 to access both the the 1.3 and 4.0 backends. The calls to the 1.3 backend
use the XML response format while the 4.0 backend use the Java binary format.


On Nov 19, 2012, at 11:40 AM, kfdroid <> wrote:

> I have an existing v1.4 implementation of Solr that supports 2 lines of
> business. For a third line of business the need to do Geo searching requires
> using Solr 4.0. I'd like to minimize the impact to the existing lines of
> business (let them upgrade at their own pace), however I want to share
> hardware if possible. 
> Can I have Solr 4.0 and Solr 1.4 co-exist in the same Tomcat instance? If
> so, are there any potential side-effects to the existing Solr implementation
> I should be aware of?
> Thanks,
> Ken
> --
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