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From Ian Lea <>
Subject Re: Solr Or Lucene Paging
Date Fri, 01 Mar 2013 11:20:52 GMT
You're probably better off asking Solr questions on the solr list.
But if you really need the 20 hits starting at 1000000 i.e. page
number 50000 you'd better rethink your requirements and your indexing


On Fri, Mar 1, 2013 at 6:48 AM, dizh <> wrote:
> Hi,All:
>  I want to ask a question, How does Solr implements Paging, such as start = 1000000 and
row = 20
>  I roughly saw Solr source, hare is the code:
>  getDocListNC(QueryResult qr,QueryCommand cmd) ;
>  often it uses :
>  topCollector = TopFieldCollector.create(weightSort(cmd.getSort()), len, false, needScores,
needScores, true);
>, luceneFilter, collector);
>  See it , it only fetch all docs and then do paging, So my question is Is it too slow?
if I set len = 10000000 Often cause OOM
>  Is Solr shard can perfectly solve it?
>  Thank you!
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