Hello Erick, Thanks for your answer.
After reading previous subjects on the user list, we had already tried to change the parameters we mentioned. - concurrent warming searchers : we have set the maxWarmingSearchers attribute to 2 <maxWarmingSearchers>2</maxWarmingSearchers> - we have tried 32 and 64 for the ramBufferSizeMB attribute - there is no other load on the Solr server, or search when we index - the autocommit is defined with openSearcher=false, maxTime=600000ms, maxDocs=6000 - the autoSoftCommit is defined with maxTime=1000 We have already tried to change the softcommit and the commit parameters in several ways. We have also tried to commit on the client size. Ok I try to commit more often. - we have used cache sizes defined in the example : size=512 The documents size is not too big, I think : 1 million documents produce a 6Go index. Thanks for your answer on multiple collections. I thought multiple collections should have the same schema in Zk after reading a wiki page : http://wiki.apache.org/solr/NewSolrCloudDesign : "The entire cluster must have a single schema and solrconfig" Maybe is this page deprecated ? I also thought that because OOM errors occur only when we index a second collection. There is no problem when indexing a single collection. Going with 4.1 would not be easy for now... We'll think about it. Thanks. Joel -----Message d'origine----- De : Erick Erickson [mailto:erickerick...@gmail.com] Envoyé : jeudi 31 janvier 2013 14:00 À : solr-user@lucene.apache.org Objet : Re: Indexing problems I'm really surprised you're hitting OOM errors, I suspect you have something else pathological in your system. So, I'd start checking things like - how many concurrent warming searchers you allow - How big your indexing RAM is set to (we find very little gain over 128M BTW). - Other load on your Solr server. Are you, for instance, searching on it too? - what your autocommit characterstics are (think about autocommitting fairly often with openSearcher=false). - have you defined huge caches? - ..... How big are these documents anyway? With 12G of ram, they'd have to be absolutely _huge_ to matter much. Multiple collections should work fine in ZK. I really think you have some innocent-looking configuration setting thats bollixing you up, this is not expected behavior. If at all possible, I'd also go with 4.1. I don't really think it's relevant to your situation, but there have been a lot of improvements in the code.... Best Erick
