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Date: Fri, 13 Nov 2009 10:00:39 +0000 (UTC)
From: "Noble Paul (JIRA)" <jira@apache.org>
To: solr-dev@lucene.apache.org
Subject: [jira] Updated: (SOLR-1352) DIH: MultiThreaded
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     [ https://issues.apache.org/jira/browse/SOLR-1352?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Noble Paul updated SOLR-1352:
-----------------------------

    Description: 
It has been a long pending request to make DIH multithreaded. Now that we have implemented most of the features , the next best thing we can aim for is performance. DIH should be able to take advantage of multiple cores in a box .I expect the configuration to be as follows

{code:xml}
<entity name="foo" threads="4">
<!--more stuff goes here-->
</entity>
{code}

at the entity where the threads is specified it should fork into multiple threads. If the threads<2 it executes w/o forking. In debug mode it automatically becomes singlethreaded.

  was:
It has been a long pending request to make DIH multithreaded. Now that we have implemented most of the features , the next best thing we can aim for is performance. DIH should be able to take advantage of multiple cores in a box .I expect the configuration to be as follows

{code:xml}
<entity name="foo" numThreads="4">
<!--more stuff goes here-->
</entity>
{code}

at the entity where the numThreads is specified it should fork into multiple threads. If the numThreads<2 it executes w/o forking. In debug mode it automatically becomes singlethreaded.


'numThreads' becomes' threads'

> DIH: MultiThreaded
> ------------------
>
>                 Key: SOLR-1352
>                 URL: https://issues.apache.org/jira/browse/SOLR-1352
>             Project: Solr
>          Issue Type: Improvement
>          Components: contrib - DataImportHandler
>            Reporter: Noble Paul
>            Assignee: Noble Paul
>             Fix For: 1.5
>
>         Attachments: SOLR-1352.patch
>
>
> It has been a long pending request to make DIH multithreaded. Now that we have implemented most of the features , the next best thing we can aim for is performance. DIH should be able to take advantage of multiple cores in a box .I expect the configuration to be as follows
> {code:xml}
> <entity name="foo" threads="4">
> <!--more stuff goes here-->
> </entity>
> {code}
> at the entity where the threads is specified it should fork into multiple threads. If the threads<2 it executes w/o forking. In debug mode it automatically becomes singlethreaded.

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