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Date: Mon, 16 Apr 2012 20:58:16 +0000 (UTC)
From: "Claudio R (Commented) (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (SOLR-3360) Problem with DataImportHandler
 multi-threaded
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    [ https://issues.apache.org/jira/browse/SOLR-3360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13255044#comment-13255044 ] 

Claudio R commented on SOLR-3360:
---------------------------------

Hi James Dyer and Mikhail Khludnev,

I added in logging.properties of tomcat the line below:

org.apache.solr.handler.dataimport.JdbcDataSource.level=FINE

And ran again in 3.6.0 with 10 threads.
The select below was performed 10 times

select url from video where indice_id_indice = '257933'

This select of sub-entity should have been executed only one time.


                
> Problem with DataImportHandler multi-threaded
> ---------------------------------------------
>
>                 Key: SOLR-3360
>                 URL: https://issues.apache.org/jira/browse/SOLR-3360
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 3.6
>         Environment: Solr 3.6.0, Apache Tomcat 6.0.20, jdk1.6.0_15, Windows XP
>            Reporter: Claudio R
>
> Hi,
> If I use dataimport with 1 thread, I got:
> <lst name="statusMessages">
>    <str name="Total Requests made to DataSource">5001</str>
>    <str name="Total Rows Fetched">1000</str>
>    <str name="Total Documents Skipped">0</str>
>    <str name="Full Dump Started">2012-04-16 11:21:57</str>
>    <str name="">Indexing completed. Added/Updated: 1000 documents. Deleted 0 documents.</str>
>    <str name="Committed">2012-04-16 11:23:19</str>
>    <str name="Total Documents Processed">1000</str>
>    <str name="Time taken">0:1:22.390</str>
> </lst>
> If I use datamport with 10 threads, I got:
> <lst name="statusMessages">
>    <str name="Total Requests made to DataSource">0</str>
>    <str name="Total Rows Fetched">10000</str>
>    <str name="Total Documents Skipped">0</str>
>    <str name="Full Dump Started">2012-04-16 11:31:43</str>
>    <str name="">Indexing completed. Added/Updated: 10000 documents. Deleted 0 documents.</str>
>    <str name="Committed">2012-04-16 11:41:50</str>
>    <str name="Total Documents Processed">10000</str>
>    <str name="Time taken">0:10:7.586</str>
> </lst>
> The configuration of 10 threads consumed 10 times longer than the configuration with 1 thread.
> I have 1000 records in the database.
> My db-data-config.xml is shown below:
> <?xml version="1.0" encoding="UTF-8" ?>
> <dataConfig>
>    <dataSource driver="com.microsoft.sqlserver.jdbc.SQLServerDriver" url="jdbc:sqlserver://200.XXX.XXX.XXX:1433;databaseName=test" user="user" password="pass"/>
>       <document>
>          <entity name="indice" rootEntity="true" threads="10" transformer="RegexTransformer,TemplateTransformer" query="select top 1000 i.id_indice, i.a, i.b from indice i where i.status = 'I'" deltaImportQuery="i.id_indice, i.a, i.b from indice i where id_indice in ('${dataimporter.delta.id_indice}')" deltaQuery="select id_indice from indice where status='I' and data_hora_modificacao >= convert(datetime, '${dataimporter.last_index_time}', 120)" deletedPkQuery="select id_indice from indice where status='D' and data_hora_modificacao >= convert(datetime, '${dataimporter.last_index_time}', 120)">	
>             <field column="id_indice" name="id_indice" />
>             <field column="a" name="a" />
>             <field column="b" name="b" />
>             <entity name="filtro" transformer="RegexTransformer,TemplateTransformer" query="select categoria, sub_categoria from filtro where indice_id_indice = '${indice.id_indice}'">
>                <field name="filtro_categoria" column="categoria" />
>                <field name="filtro_sub_categoria" column="sub_categoria" />
>                <field name="nv_sub_categoria" column="nv_sub_categoria" template="${filtro.categoria}|${filtro.sub_categoria}" />
>             </entity>
>             <entity name="pagina_relacionada" query="select url from pagina_relacionada where indice_id_indice = '${indice.id_indice}'">
>                <field name="pagina_relacionada_url" column="url" />
>             </entity>
>             <entity name="veja_mais" query="select chamada, url from veja_mais where indice_id_indice = '${indice.id_indice}'">
>                <field name="veja_mais_chamada" column="chamada" />
>                <field name="veja_mais_url" column="url" />
>             </entity>
>             <entity name="video" query="select url from video where indice_id_indice = '${indice.id_indice}'">
>                <field name="video_url" column="url" />
>             </entity>
>             <entity name="galeria" query="select url from galeria where indice_id_indice = '${indice.id_indice}'">
>                <field name="galeria_url" column="url" />
>             </entity>
>          </entity>
>       </document>
> </dataConfig>
> Thanks.

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