What is the right way to upgrade a solr index from Lucene 2.9.1 to 3.x. I'm getting the exception:
SEVERE: java.lang.RuntimeException: org.apache.lucene.index.IndexFormatTooOldException: Format version is not supported in file '_aw5w.fdx': 1 (needs to be between 2 and 2). This version of Lucene only supports indexes created with release 3.0 and later. when I try to start a server with my old index. Thanks in advance, Mike
