lucene-solr-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Dr. Jan Frederik Maas" <jan.m...@sub.uni-hamburg.de>
Subject Re: Re: Re: MoreLikeThis Component - how to get fields of documents
Date Mon, 09 May 2016 13:12:40 GMT
Hey Alessandro,

it seems that the edismax MLThandler is not able to work correctly with 
a solr cloud/sharding:

https://issues.apache.org/jira/browse/SOLR-4414

Using the MLThandler we got randomly a response for only very few 
requests, while the MLTcomponent works fine (except for the problem I 
encountered...)

Best wishes,
Jan


Am 09.05.2016 um 12:01 schrieb Alessandro Benedetti:
> Hey Jan, any reason you are using the MLTComponent, instead of a specific
> Request Handler with the MLT query parser ?
>
> <requestHandler name="/getSimilar" class="solr.SearchHandler">
>      <lst name="defaults">
>          <!-- Query settings -->
>          <str name="title">Entities Similarity</str>
>          <str name="defType">edismax</str>
>          <str name="rows">5</str>
>          <str name="fl">*,score</str>
>          <str name="echoParams">explicit</str>
>          <str name="wt">json</str>
>          <str name="q">{!mlt qf=field1,field2,field3,field4 mintf=1
> mindf=5 maxqt=50 v=$entity_id}</str>
>          <!-- Default Similarity Parameters-->
>          <str name="entity_id">0</str>
>      </lst>
> </requestHandler>
>
>
> This should solve easily your problems,
>
> Cheers
>
>
> On Mon, May 9, 2016 at 9:58 AM, Dr. Jan Frederik Maas <
> jan.maas@sub.uni-hamburg.de> wrote:
>
>> Hi Edwin,
>>
>> thanks for your reply - we currently use 5.0.0
>>
>> Best wishes,
>> Jan
>>
>>
>> Am 05.05.2016 um 05:26 schrieb Zheng Lin Edwin Yeo:
>>
>>> Hi Jan,
>>>
>>> Which version of Solr are you using?
>>>
>>> Regards,
>>> Edwin
>>>
>>>
>>> On 26 April 2016 at 23:46, Dr. Jan Frederik Maas <
>>> jan.maas@sub.uni-hamburg.de> wrote:
>>>
>>> Hello,
>>>> I want to use the moreLikeThis Component to get similar documents from a
>>>> sharded SOLR. This works quite well except for the fact that the
>>>> documents
>>>> in the moreLikeThis-list only contain the id/unique key of the documents.
>>>>
>>>> Is it possible to get the other fields? I can of course do another query
>>>> for the given IDs, but this would be complicated and very slow.
>>>>
>>>> For example:
>>>>
>>>>
>>>>
>>>> http://mysolrsystem/?q=id:524507260&mlt=true&mlt.fl=title&mlt.mintf=0&indent=true&mlt.match.include=true&fl=title,id,topic
>>>>
>>>> creates
>>>>
>>>> (...)
>>>> <lst name="moreLikeThis">
>>>> <result name="524507260" numFound="5" start="0" maxScore="4.583166">
>>>> <doc><str name="id">646199803</str></doc>
>>>> <doc><str name="id">613210832</str></doc>
>>>> <doc><str name="id">562239472</str></doc>
>>>> <doc><str name="id">819200034</str></doc>
>>>> <doc><str name="id">539877271</str></doc>
>>>> </result>
>>>> (...)
>>>>
>>>> I tried to modify the fl-parameter, but I can only switch the ID-field in
>>>> the moreLikeThis-Documents on and off (the latter resulting in empty
>>>> document tags). In the result list however, the fl-fields are shown as
>>>> specified.
>>>>
>>>> I would be very grateful for help.
>>>>
>>>> Best wishes,
>>>> Jan Maas
>>>>
>>>>
>> --
>> Dr.-Ing. Jan Frederik Maas
>> Staats- und Universitaetsbibliothek Hamburg Carl von Ossietzky
>> IuK-Technik / Digitale Bibliothek / Entwicklung
>> Fachreferent für Informatik, Technik
>> Von-Melle-Park 3, 20146 Hamburg
>> Telefon (040) 42838-6674 | Fax (040) 41345070
>> Mail: maas@sub.uni-hamburg.de
>> http://www.sub.uni-hamburg.de
>>
>>
>


-- 
Dr.-Ing. Jan Frederik Maas
Staats- und Universitaetsbibliothek Hamburg Carl von Ossietzky
IuK-Technik / Digitale Bibliothek / Entwicklung
Fachreferent für Informatik, Technik
Von-Melle-Park 3, 20146 Hamburg
Telefon (040) 42838-6674 | Fax (040) 41345070
Mail: maas@sub.uni-hamburg.de
http://www.sub.uni-hamburg.de


Mime
View raw message