For a continuous crawling/indexing web search engine, there is usually a big main index that is being searched on, and smaller incremental indexes created on a daily base. What's a good strategy to merge a daily index into the main index? the daily index is already merged from indexes using IndexMerger. It seems IndexMerger only works on indexes created by Indexer (using hardcoded directory structure). Is there another tool to merge two merged index? thanks, aj

