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From "Shalin Shekhar Mangar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-4414) MoreLikeThis on a shard finds no interesting terms if the document queried is not in that shard
Date Thu, 08 Aug 2013 17:27:51 GMT

    [ https://issues.apache.org/jira/browse/SOLR-4414?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13733717#comment-13733717
] 

Shalin Shekhar Mangar commented on SOLR-4414:
---------------------------------------------

[~elyograg] - That was a mistake. The commit mentioned here actually belonged to SOLR-4415.
I fixed the issue number in the change log but I forgot to put a comment here.
                
> MoreLikeThis on a shard finds no interesting terms if the document queried is not in
that shard
> -----------------------------------------------------------------------------------------------
>
>                 Key: SOLR-4414
>                 URL: https://issues.apache.org/jira/browse/SOLR-4414
>             Project: Solr
>          Issue Type: Bug
>          Components: MoreLikeThis, SolrCloud
>    Affects Versions: 4.1
>            Reporter: Colin Bartolome
>
> Running a MoreLikeThis query in a cloud works only when the document being queried exists
in whatever shard serves the request. If the document is not present in the shard, no "interesting
terms" are found and, consequently, no matches are found.
> h5. Steps to reproduce
> * Edit example/solr/collection1/conf/solrconfig.xml and add this line, with the rest
of the request handlers:
> {code:xml}
> <requestHandler name="/mlt" class="solr.MoreLikeThisHandler" />
> {code}
> * Follow the [simplest SolrCloud example|http://wiki.apache.org/solr/SolrCloud#Example_A:_Simple_two_shard_cluster]
to get two shards running.
> * Hit this URL: [http://localhost:8983/solr/collection1/mlt?mlt.fl=includes&q=id:3007WFP&mlt.match.include=false&mlt.interestingTerms=list&mlt.mindf=1&mlt.mintf=1]
> * Compare that output to that of this URL: [http://localhost:7574/solr/collection1/mlt?mlt.fl=includes&q=id:3007WFP&mlt.match.include=false&mlt.interestingTerms=list&mlt.mindf=1&mlt.mintf=1]
> The former URL will return a result and list some interesting terms. The latter URL will
return no results and list no interesting terms. It will also show this odd XML element:
> {code:xml}
> <null name="response"/>
> {code}

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