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Posted to solr-user@lucene.apache.org by Anderson vasconcelos <an...@gmail.com> on 2011/12/13 22:34:18 UTC

Migrate Lucene 2.9 To SOLR

Hi

I have a old project that use Lucene 2.9. Its possible to use the index
created by lucene in SOLR? May i just copy de index to data directory of
SOLR, or exists some mechanism to import Lucene index?

Thanks

Re: Migrate Lucene 2.9 To SOLR

Posted by Robert Stewart <bs...@gmail.com>.
I am about to try exact same thing, running SOLR on top of Lucene indexes created by Lucene.Net 2.9.2.  AFAIK, it should work.  Not sure if indexes become non-backwards compatible once any new documents are written to them by SOLR though.  Probably good to make a backup first.

On Dec 13, 2011, at 4:34 PM, Anderson vasconcelos wrote:

> Hi
> 
> I have a old project that use Lucene 2.9. Its possible to use the index
> created by lucene in SOLR? May i just copy de index to data directory of
> SOLR, or exists some mechanism to import Lucene index?
> 
> Thanks

Re: Migrate Lucene 2.9 To SOLR

Posted by Anderson vasconcelos <an...@gmail.com>.
OK. Thanks for help. I gonna try do migrate



2011/12/14 Chris Hostetter <ho...@fucit.org>

>
> : I have a old project that use Lucene 2.9. Its possible to use the index
> : created by lucene in SOLR? May i just copy de index to data directory of
> : SOLR, or exists some mechanism to import Lucene index?
>
> you can use an index created directly with lucene libraries in Solr, but
> in order for Solr to understand that index and do anything meaningful with
> it you have to configure solr with a schema.xml file that makes sense
> given the custom code used to build that index (ie: what fields did you
> store, what fields did you index, what analyzers did you use, what fields
> dod you index with term vectors, etc...)
>
>
> -Hoss
>

Re: Migrate Lucene 2.9 To SOLR

Posted by Chris Hostetter <ho...@fucit.org>.
: I have a old project that use Lucene 2.9. Its possible to use the index
: created by lucene in SOLR? May i just copy de index to data directory of
: SOLR, or exists some mechanism to import Lucene index?

you can use an index created directly with lucene libraries in Solr, but 
in order for Solr to understand that index and do anything meaningful with 
it you have to configure solr with a schema.xml file that makes sense 
given the custom code used to build that index (ie: what fields did you 
store, what fields did you index, what analyzers did you use, what fields 
dod you index with term vectors, etc...)


-Hoss