See https://issues.apache.org/jira/browse/MAHOUT-1112 Seems mahout doesn't yet support lucene 4.0
On Wed, Nov 14, 2012 at 6:38 PM, Jack Krupansky <j...@basetechnology.com> wrote: > Check the dates for the Solr/Lucene jars - they might be an early snapshot > before the index format stabilized. > > Or, maybe that Mahout sub-project had a copy of some old Lucene data. > Keeping old Lucene data around as opposed to reindexing is a rather bad > idea. > > -- Jack Krupansky > > -----Original Message----- From: tomw > Sent: Wednesday, November 14, 2012 8:17 AM > To: solr-user@lucene.apache.org > Subject: Re: How to change the Solr 4.0 index format? > > > On Mi, 2012-11-14 at 17:57 +0200, Artem Lokotosh wrote: >> >> > Does it mean that Solr is creating the index in some kind of >> > old format? Is it possible to change the format? >> >> Try this >> >> http://lucene.apache.org/core/4_0_0/core/org/apache/lucene/index/IndexUpgrader.html >> > > I'm wondering why a newly created index, created with the latest release > of solr 4.0 is "too old". Am I missing some config options? In > particular as it states: > > This version of Lucene only supports indexes created with release 1.9 > and later. > > which is way back. Either it's a bug or some configuration or > installation went wrong. > > --tomw > > > -- Best regards, Artem Lokotosh mailto:arco...@gmail.com
