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From Toke Eskildsen>
Subject Re: Performance degradation with two collection on same sole instance
Date Fri, 30 Oct 2015 10:55:44 GMT
On Tue, 2015-10-27 at 12:12 -0700, SolrUser1543 wrote:
> The question is , how Solr manages its resources when it has more than one
> core ? Does it need twice memory ? Or this degradation might be a
> coincidence ?    

There is an overhead for each core, but not much. You should not notice
any performance degradation from the secondary tiny core. An easy way to
check is to remove the extra core and see if that returns performance
back to the previous level. Preferably you should do this without
restarting the Solr instance as doing so affects performance temporarily
until it stabilizes.

- Toke Eskildsen, State and University Library, Denmark

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