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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-1045) Build Solr index using Hadoop MapReduce
Date Wed, 04 Mar 2009 16:17:58 GMT

    [ https://issues.apache.org/jira/browse/SOLR-1045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12678770#action_12678770
] 

Yonik Seeley commented on SOLR-1045:
------------------------------------

The "solr index" is normally just a Lucene index which has been indexed according to the particular
schema.
There are exceptions, as you have noted:
 - the spell check index
 - ExternalFileField

It's worth keeping these in mind, and perhaps could be useful to be able to handle at some
point, but it certainly doesn't seem critical.

> Build Solr index using Hadoop MapReduce
> ---------------------------------------
>
>                 Key: SOLR-1045
>                 URL: https://issues.apache.org/jira/browse/SOLR-1045
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Ning Li
>         Attachments: SOLR-1045.0.patch
>
>
> The goal is a contrib module that builds Solr index using Hadoop MapReduce.
> It is different from the Solr support in Nutch. The Solr support in Nutch sends a document
to a Solr server in a reduce task. Here, the goal is to build/update Solr index within map/reduce
tasks. Also, it achieves better parallelism when the number of map tasks is greater than the
number of reduce tasks, which is usually the case.

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