Re: Using Solr with an existing Lucene index
: 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: : /my/existing/lucene/index/data ? 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
Re: Using Solr with an existing Lucene index
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). Did you manage to retrieve any data from your existing datasource through Solr using the existing index? If so, how? Is is just a matter of changing your data directory to your existing index data in the solrconfig.xml, for example: /my/existing/lucene/index/data ? -- View this message in context: http://www.nabble.com/Using-Solr-with-an-existing-Lucene-index-tp20002395p21344616.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: Using Solr with an existing Lucene index
: I want to use Solr to provide a web-based read-only view of this index. : I require that the index not be locked in any way while Solr is using it : (so the Java program can continue updating it) and that Solr is able to : see new documents added to the index, if not immediately, at least a : couple of times a day. This should be possible. It's essentially what happens on a 'slave" instance of SOlr where replication updates the index. you notify solr with a "commit" to tell it to open the new index after you've made changes with your existing application. : My first attempt to do this resulted in my Java program throwing a : CorruptIndex exception. It appears as though Solr has somehow modified I'm not sure why this might have happened if you didn't attempt any updates with Solr, but one thing to check is if you are using single in your solrconfig.xml? that would make solr use an in memory lock file and it wouldn't notice your application already had a lock for updating the index if it did try to make a change. You'll want to use simple (and make sure your app doesn't override the location of the lock file -- it needs to use the default lock file name in the index directory) -Hoss
Using Solr with an existing Lucene index
Hi, I have a Java program which maintains a Lucene index using the Lucene Java APIs. I want to use Solr to provide a web-based read-only view of this index. I require that the index not be locked in any way while Solr is using it (so the Java program can continue updating it) and that Solr is able to see new documents added to the index, if not immediately, at least a couple of times a day. 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). Please let me know if what I want is even possible with this software. If so, what config options should I be looking at? I couldn't find anything that suggested a read-only index. Thanks, Frank
