Yesterday I upgraded my dev server to Solr 4.9, and also upgraded a third-party plugin to a new version that's compatible with Solr 4.9.
After the index was rebuilt, each shard was 28GB ... but before the upgrade, each shard was only 20GB. The number of documents per shard (16.4 million) actually went *down* a little bit, and the config/schema hasn't changed. Could this be explained by the new Solr version? I've also asked the third-party plugin company about this problem. Thanks, Shawn
