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https://issues.apache.org/jira/browse/SOLR-7580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15589798#comment-15589798
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ASF subversion and git services commented on SOLR-7580:
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Commit 22cee924ac03e27da5aa020f9a055bb93928d811 in lucene-solr's branch
refs/heads/branch_6x from [~dsmiley]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=22cee92 ]
SOLR-7580: Move defaults in bin/solr.in.sh into bin/solr (incl. Windows)
(cherry picked from commit 8ae3304)
> Number of ScoreDoc instances equals rows parameter, not actual number of
> matches
> --------------------------------------------------------------------------------
>
> Key: SOLR-7580
> URL: https://issues.apache.org/jira/browse/SOLR-7580
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 5.1
> Reporter: Markus Jelsma
> Fix For: 5.5, 6.0
>
>
> We have several batch jobs that use StreamingResponseCallback to collect all
> records matching a specific query. For each record, we execute a new query
> and need all results without paging through them. Because we do not know the
> amount of matches to expect, we do setRows(Integer.MAX_VALUE);. According to
> the VisualVM samples, this results in a huge amount of ScoreDoc instances,
> making the query unreasonably slow.
> The current work-around we use is to execute the same query with setRows(0),
> get numResults, and then reissue the query with setRows(numResults). This is
> fast, almost as fast as one would expect.
> This is, however, a very dirty work-around. I am unsure whether this is a
> Solr or Lucene issue, SolrIndexSearcher is a beast to debug ;)
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