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Date: Wed, 28 Mar 2012 18:35:30 +0000 (UTC)
From: "James Dyer (Resolved) (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] [Resolved] (SOLR-2233) DataImportHandler - JdbcDataSource is
 not thread safe
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     [ https://issues.apache.org/jira/browse/SOLR-2233?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James Dyer resolved SOLR-2233.
------------------------------

    Resolution: Won't Fix

The "threads" feature was removed from DIH in Trunk/4.x (see SOLR-3262).  Some "threads" bugs were fixed in version 3.6, the last release in which "threads" is available. (see SOLR-3011).
                
> DataImportHandler - JdbcDataSource is not thread safe
> -----------------------------------------------------
>
>                 Key: SOLR-2233
>                 URL: https://issues.apache.org/jira/browse/SOLR-2233
>             Project: Solr
>          Issue Type: Bug
>          Components: contrib - DataImportHandler
>    Affects Versions: 1.4, 1.4.1, 1.5, 3.1, 3.2
>            Reporter: Fuad Efendi
>         Attachments: SOLR-2233-001.patch, SOLR-2233-JdbcDataSource.patch, SOLR-2233.patch, SOLR-2233.patch
>
>
> Whenever Thread A spends more than 10 seconds on a Connection (by retrieving records in a batch), Thread B will close connection.
> Related exceptions happen when we use "threads=" attribute for entity; usually exception stack contains message "connection already closed"
> It shouldn't happen with some JNDI data source, where Connection.close() simply returns Connection to a pool of available connections, but we might get different errors.

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