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From "Fuad Efendi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-2006) DataImportHandler creates multiple DB connections during a delta update
Date Tue, 07 Dec 2010 18:32:10 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12968866#action_12968866
] 

Fuad Efendi commented on SOLR-2006:
-----------------------------------

I believe it is resolved in SOLR-2233

> DataImportHandler creates multiple DB connections during a delta update
> -----------------------------------------------------------------------
>
>                 Key: SOLR-2006
>                 URL: https://issues.apache.org/jira/browse/SOLR-2006
>             Project: Solr
>          Issue Type: Improvement
>          Components: contrib - DataImportHandler
>    Affects Versions: 1.4, 1.4.1, 3.1, 4.0
>            Reporter: Lance Norskog
>
> The DataImportHandler code for delta updates creates a separate copy of each datasource
for each entity in the document. This creates a separate JDBC connection for each entity.
In some relational databases, connections are a heavyweight resource and their use should
be limited.
> A JDBC pool would help avoid this problem, and also assist in doing multi-threaded DIH
indexing jobs.

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