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From Renee Sun <>
Subject Re: Upgrade to Solr 1.4, very slow at start up when loading all cores
Date Thu, 30 Sep 2010 20:52:40 GMT

Hi Yonik,
thanks for your reply.

I entered a bug for this at :

to answer your questions here:
  - do you have any warming queries configured? 
----> no, all autowarmingcount are set to 0 for all caches
  - do the cores have documents already, and if so, how many per core? 
----> yes, 130 cores total, 2,3 of them already have 1~2.4 million
documents, others have about 50,000 documents
  - are you using the same schema & solrconfig, or did you upgrade? 
----> yes, absolutely no change
  - have you tried finding out what is taking up all the memory (or 
all the CPU time)? 
----> yes, JConsole shows after 70 cores are loaded in about 4 minutes, all
16GB memory are taken and rest of cores load extremely slow. The memory
remain high and never dropped.

We are in process to upgrade to 1.4.1

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