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From Peter Karich <>
Subject Re: Upgrade to Solr 1.4, very slow at start up when loading all cores
Date Thu, 14 Oct 2010 09:09:31 GMT
just a blind shot (didn't read the full thread):
what is your maxWarmingSearchers settings? For large indices we set it
to 2 (maximum)


> just update on this issue...
> we turned off the new/first searchers (upgrade to Solr 1.4.1), and ran
> benchmark tests, there is no noticeable performance impact on the queries we
> perform comparing with Solr 1.3 benchmark tests WITH new/first searchers.
> Also the memory usage reduced by 5.5 GB after loading the cores with our
> data volume by turning these static warm caches off.
> We will take this approach in our production environment but meanwhile I am
> curious if this issue will be addressed: it seems the new/first searchers do
> not really buy any performance benefits because it uses so much memory,
> especially at core loading time.
> thanks
> Renee

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