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From Rafał Kuć <>
Subject Re: Returning to Solr 4.0 from 4.1
Date Fri, 01 Mar 2013 10:22:48 GMT

As far as I know you have to re-index using external tool.

 Rafał Kuć
 Sematext :: :: Solr - Lucene - Nutch - ElasticSearch

> On Fri, Mar 1, 2013 at 11:59 AM, Rafał Kuć <> wrote:
>> Hello!
>> I assumed that re-indexing can be painful in your case, if it wouldn't
>> you probably would re-index by now :) I guess (didn't test it myself),
>> that you can create another collection inside your cluster, use the
>> old codec for Lucene 4.0 (setting the version in solrconfig.xml should
>> be enough) and re-indexing, but still re-indexing will have to be
>> done. Or maybe someone knows a better way ?

> Will I have to reindex via an external script bridging, such as a
> Python script which requests N documents at a time, indexes them into
> Solr 4.1, then requests another N documents to index? Or is there
> internal Solr / Lucene facility for this? I've actually looked for
> such a facility, but as I am unable to find such a thing I ask.

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