Earlier I was on shared hosting and due to high load I disabled the YARPP plugin, now being on VPS I've installed and activated YARPP but find that posts are showing no related posts, on pressing the update button ( doing no updates to the post ) in post editor bring the related posts.
I've also tried flushing the cache using the &action=flush
and reducing the relatedness to 3 from 5.
I've put title and content with extra weight, categories to consider and tags to do not consider.
Any Suggestions would be useful.