Hey Ryan, why do you say a Lucene/Solr index served via Terracotta would be 
substantially slower?
I often wanted to try Terracotta + Lucene, but... time.

Thanks,
Otis
--
Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch

----- Original Message ----
From: Ryan McKinley <[EMAIL PROTECTED]>
To: solr-user@lucene.apache.org
Sent: Wednesday, March 26, 2008 10:52:45 AM
Subject: Re: Update schema.xml without restarting Solr?

Jeryl Cook wrote:
> Top often requested feature:
> 1. Make the option on using the "RAMDirectory" to hook in Terracotta(
> billion(s) of items in an index anyone?..it would be possible using
> this.)

This is noted in: https://issues.apache.org/jira/browse/SOLR-465

Out of cueriosity, any sense of performance with a terracotta index?  It 
seems like it would have to be *substantially* slower.  Also, if it is a 
RAM directly, does it persist?

If your looking to support billions of docs, perhaps consider:
http://wiki.apache.org/solr/DistributedSearch

ryan



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