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Aug 22, 2012, 6:31 AM
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[jira] [Resolved] (SOLR-1854) wrong calc of numFound in DistributedSearch
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[ https://issues.apache.org/jira/browse/SOLR-1854?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yonik Seeley resolved SOLR-1854.
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Resolution: Not A Problem
> wrong calc of numFound in DistributedSearch
> -------------------------------------------
>
> Key: SOLR-1854
> URL: https://issues.apache.org/jira/browse/SOLR-1854
> Project: Solr
> Issue Type: Bug
> Components: SearchComponents - other
> Affects Versions: 1.4
> Reporter: Lutz Pumpenmeier
>
> When I search two indices with shard param in a distributed search, the numFound parameter in the result is incorrect when the count of the found rows in the second index is smaller than the &rows parameter in the query string and there are many identical hits in both index.
> Simple example: use the same index for both shards. try a distributed search with a query that will find lets say 100 hits in each index. numFound will be 190, if default for rows is 10. It should be 100. If you add &rows=200 to the query string, numFound is correct.
> I think the error is in QueryComponent.mergeIds:
> for (int i=0; i<docs.size(); i++) {
> SolrDocument doc = docs.get(i);
> Object id = doc.getFieldValue(uniqueKeyField.getName());
> String prevShard = uniqueDoc.put(id, srsp.getShard());
> if (prevShard != null) {
> // duplicate detected
> numFound--;
> because the comparison for identical ids is only done for doc.size() documents.
> thanks
> lutz
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