Performance loss with PHP setMulti Operation over existing keys
I'm running several hundred million documents into couchbase using php and the setMulti feature 10,000 at a time. If I run the operation on an empty bucket, I get around 600,000 ops. If I re-run that operation on a bucket containing the key/values from the first run my ops only runs at around 150,000. I've got a 6 Node cluster @ 8 core 2.0ghz and 64GB Ram. Disks formatted to ext4. Any ideas what would cause this?