> 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 On Wed, Nov 14, 2012 at 5:42 PM, tomw <t...@ubilix.com> wrote: > Hi folks, > > I was trying to use an index created by Solr 4.0 by mahout. However, > creating the vectors like: > > bin/mahout lucene.vector -d ~/apache-solr-4.0.0/example/solr/data/index > --output /tmp/mahout/vectors --field text --idField id > --dictOut /tmp/mahout/dict.txt --norm 2 > > fails with an error: > > Exception in thread "main" > org.apache.lucene.index.IndexFormatTooOldException: Format version is > not supported > > which is kind of surprising as the entire stack is the latest one > available. Does it mean that Solr is creating the index in some kind of > old format? Is it possible to change the format? So far I have not found > any entry in the config files which would indicate that. > > > Any idea? > > Thanks, > > --tomw > > > -- Best regards, Artem Lokotosh mailto:arco...@gmail.com