: My first attempt to do this resulted in my Java program throwing a : CorruptIndex exception. It appears as though Solr has somehow modified my : index files in some way which causes the Lucene code to see them as corrupt : (even though I did not, at least intentionally, try to post any documents or : otherwise update the index through Lucene).
knowing the specifics of the exception would be helpful ... for example, if the exception message was "unknown format version: -X" that typically just means it was last touched by a newer version of Lucene then the one you are trying to read it with ... if hte version of lucene in solr is newer then then one you are using i can easily imagine this happening just from solr opening and closing an IndexWriter even if you never use Solr to add/commit any docs. : If so, how? Is is just a matter of changing your data directory to your : existing index data in the solrconfig.xml, for example: : <dataDir>/my/existing/lucene/index/data</dataDir> ? solr expects the index to be named "index" inside the data directory -- but beyond that you also need to make sure your schema.xml is compatible (as mentioned in another thread i just replied to) -Hoss
