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https://issues.apache.org/jira/browse/SOLR-3360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13259843#comment-13259843
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Mikhail Khludnev commented on SOLR-3360:
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Claudio,
patched sources are https://github.com/m-khl/solr-patches/tree/solr3360
patched jar is
https://github.com/downloads/m-khl/solr-patches/apache-solr-dataimporthandler-3.6.1-SNAPSHOT.jar
I work with http://svn.apache.org/viewvc/lucene/dev/branches/lucene_solr_3_6/
> 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
> Attachments: SOLR-3360-test.patch, SOLR-3360-test.patch,
> SOLR-3360.patch
>
>
> 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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