$persist_to and $replicate_to

We’re replacing our memcached client with the couchbase php client.

We are currently using moxi (locally on each web server).

The $persist_to and $replicate_to parameters on some of the methods default to 0 and I am trying to find out what the default moxi behaviour is for this. I cannot see anything in the moxi documentation or configuration as to how it behaves.

Can anyone please help with this? Does moxi wait at all for documents to be persisted or replicated? If we’re simply switching to a new client, can I keep the defaults set to 0 ? I undestand what they are for, I just want to keep the same behaviour for now.