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From "Peter Cline (JIRA)" <j...@apache.org>
Subject [jira] Created: (SOLR-2380) Problem when using facet.offset with facet.sort=lex and shards
Date Thu, 24 Feb 2011 22:14:38 GMT
Problem when using facet.offset with facet.sort=lex and shards
--------------------------------------------------------------

                 Key: SOLR-2380
                 URL: https://issues.apache.org/jira/browse/SOLR-2380
             Project: Solr
          Issue Type: Bug
          Components: search
    Affects Versions: 1.4.1, 3.1, 4.0
            Reporter: Peter Cline



I'm having a problem using distributed search in conjunction with the facet.offset parameter
and lexical facet value sorting.

I have a facet with ~100k values in one index.  I'm wanting to page through them alphabetically.
 When not using distributed search, everything works just fine, and very quick.  A query like
this works, returning 10 facet values starting at the 50,001st:

{noformat}http://server:port/solr/select/?q=*:*&facet.field=subject_full_facet&facet=true&f.subject_full_facet.facet.limit=10&facet.sort=lex&facet.offset=50000
# Butterflies - Indiana !{noformat}

However, if I enable distributed search, using a single shard (which is the same index), I
get no facet values returned.

{noformat}http://server:port/solr/select/?q=*:*&facet.field=subject_full_facet&facet=true&f.subject_full_facet.facet.limit=10&facet.sort=lex&facet.offset=50000&shards=server:port/solr
# empty list :({noformat}

Doing a little more testing, I'm finding that with sharding I often get an empty list any
time the facet.offset >= facet.limit.  Also, by example, if I do facet.limit=100 and facet.offset=90,
I get 10 facet values.  Doing so without sharding, I get the expected 100 values (starting
at what would normally be the 91st).

Thanks,

Peter

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