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From "Benjamin, Roy" <rbenja...@ebay.com>
Subject RE: Upgrading from 3.6 to 4.0
Date Wed, 02 Jan 2013 18:34:56 GMT
Thanks all,

>> You should not use a a 3.6 SolrJ client with Solr 4 server.

I run 100 shards and 20 clients. If above is correct then the entire
system must be shut down for many hours for an upgrade...

Thanks
Roy

-----Original Message-----
From: Tomás Fernández Löbbe [mailto:tomasflobbe@gmail.com] 
Sent: Wednesday, January 02, 2013 10:23 AM
To: solr-user@lucene.apache.org
Subject: Re: Upgrading from 3.6 to 4.0

AFAIK Solr 4 should be able to read Solr 3.6 indexes. Soon those files will be updated to
4.0 format and will not be readable by Solr 3.6 anymore. See http://wiki.apache.org/lucene-java/BackwardsCompatibility
You should not use a a 3.6 SolrJ client with Solr 4 server.

Tomás


On Wed, Jan 2, 2013 at 3:04 PM, Benjamin, Roy <rbenjamin@ebay.com> wrote:

> Will the existing 3.6 indexes work with 4.0 binary ?
>
> Will 3.6 solrJ clients work with 4.0 servers ?
>
>
> Thanks
> Roy
>

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