We have a working system based on Solr 1.3 that I tried to upgrade to 1.4 with no luck. The new 1.4 Solr server is up and running but always returns 0 results when you query it. It seems to have the correct schema but the number of documents is 0 even though I used a backup of the production data.
I created the 1.4 solr server using a few machine and following the instructions on the solr wiki. For the data, I used the 'backup' command to make a copy of the live index and moved to the data directory on the new 1.4 server. When I start the new server, the tomcat catinla logs don't have any errors (only info msgs). The logs show the correct solr home and I can see its reading the schema.xml (acts_as_solr). Finally, I see that the data directory where the index is has new subfolders for spellchecker & spellchecker2 so I assume it is looking the correct directory. I'd appreciate any tips on how to debug this. Below are some more details on the setup.. thanks in advance. Athir