upgrade from 4.3 to 4.4

["Joshi, Shital" <Sh...@gs.com>]

We have SolrCloud (4.3.0) cluster (5 shards and 2 replicas) on 10 boxes. We have about 450 million documents. We're planning to upgrade to Solr 4.4.0. Do We need to re-index already indexed documents?

Thanks!

Re: upgrade from 4.3 to 4.4

[Jack Krupansky <ja...@basetechnology.com>]

A dot release should never require reindexing, unless... there is some 
change in a field type analyzer or update processor that your data depends 
on.

For example, some changes occurred in the ngram filter, so whether that 
would impact your data is up to you to decide.

See:
https://issues.apache.org/jira/browse/LUCENE-4955

There were a few other changes as well - you need to review each change 
yourself.

-- Jack Krupansky

-----Original Message----- 
From: Joshi, Shital
Sent: Wednesday, July 31, 2013 12:31 PM
To: 'solr-user@lucene.apache.org'
Subject: upgrade from 4.3 to 4.4

We have SolrCloud (4.3.0) cluster (5 shards and 2 replicas) on 10 boxes. We 
have about 450 million documents. We're planning to upgrade to Solr 4.4.0. 
Do We need to re-index already indexed documents?

Thanks!