persistent tailer

[Rockyyost]

Is there an example of how to use the persistent tailer?

I'm trying to use and I've got it creating the collection to store the tail, however, it only updates the tail when I start tailing the ops log. It does not appear to be writing to the trail collection while tailing.

Here's how I've written it so far... Thanks!

client = Mongo::MongoClient.from_uri([DATABASE STUFF])
outlet = Mongoriver::OplogWatcher.new
config = client['admin'].command(:ismaster => 1)
persistent_tailer = Mongoriver::PersistentTailer.new([client], :existing, config['setName'], {:db => database, :save_frequency => 15})

stream = Mongoriver::Stream.new(persistent_tailer, outlet)

stream.run_forever()