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From "Lance Norskog (JIRA)" <j...@apache.org>
Subject [jira] Updated: (SOLR-2186) DataImportHandler multi-threaded option throws exception
Date Tue, 26 Oct 2010 05:06:04 GMT

     [ https://issues.apache.org/jira/browse/SOLR-2186?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lance Norskog updated SOLR-2186:
--------------------------------

    Attachment: TikaResolver.patch

This patch file fixes up the DataImportHandler so that the TikaEntityProcessor works under
threads.

The technique is to pass in a resolver when creating a ThreadedContext (wrapper). This allows
TikaEP.firstInit() to work. However, TikaEP.nextRow is called with a context without a functioning
resolver, so: TikeEP caches the resolver given in firstInit() and uses it during nextRow()
instead of using the one it should use.

This is not intended as fix patch;  it merely demonstrates the problem.

The patch is made with 'git diff' and I still haven't mastered it; some 'patch' programs may
not like it.





> DataImportHandler multi-threaded option throws exception
> --------------------------------------------------------
>
>                 Key: SOLR-2186
>                 URL: https://issues.apache.org/jira/browse/SOLR-2186
>             Project: Solr
>          Issue Type: Bug
>          Components: contrib - DataImportHandler
>            Reporter: Lance Norskog
>         Attachments: TikaResolver.patch
>
>
> The multi-threaded option for the DataImportHandler throws an exception and the entire
operation fails. This is true even if only 1 thread is configured via *threads='1'*

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