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http://wiki.apache.org/jakarta-lucene/LargeScaleDateRangeProcessing
Sebastin wrote:
>
> Hi All,
> i used to search 3 Lucene Index store of size 6 GB,10 GB,10 GB of
> records using MultiReader class.
>
> here is the following code snippet:
>
>
>
> Directory indexDir2 =
> FSDirectory.getDirectory(indexSourceDir02,false);
> IndexReader indexSource2 =
> IndexReader.open(indexDir2);
> Directory indexDir3 =
>
> FSDirectory.getDirectory(indexSourceDir03,false);
> IndexReader indexSource3 =
> IndexReader.open(indexDir3);
> Directory indexDir4 =
>
> FSDirectory.getDirectory(indexSourceDir04,false);
> IndexReader indexSource4 =
> IndexReader.open(indexDir4);
>
>
>
> IndexReader[] readArray =
> {indexSource2,indexSource3,indexSource4};
> //merged reader
> IndexReader mergedReader = new MultiReader(readArray);
> IndexSearcher is = new IndexSearcher(mergedReader);
>
>
> QueryParser parser =
> new QueryParser("contents" ,new
> StandardAnalyzer());
>
>
> String searchQuery=
> new
> StringBuffer().append(inputNo).append(" AND dateSc:["
> ).append(fromDate).append(" TO ").append(toDate).append("]").append("
> ").append("AND").append(" ").append(callTyp).toString();
>
>
>
> Query callDetailquery =
> parser.parse(searchQuery);
>
> hits = is.search(callDetailquery);
>
>
> it takes 300 MB of RAM for every search and it is very very slow is there
> any other way to control the Memory and to make search faster.i use
> SINGLETON to use the IndexSearcher as a one time used object for all the
> instances.
>
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