title: Incremental training of ALS model
body: <p>I'm trying to find out if it is possible to have "incremental training" on data using MLlib in Apache Spark.</p>
  
  <p>My platform is Prediction IO, and it's basically a wrapper for Spark (MLlib), HBase, ElasticSearch and some other Restful parts.</p>
  
  <p>In my app data "events" are inserted in real-time, but to get updated prediction results I need to "pio train" and "pio deploy". This takes some time and the server goes offline during the redeploy.</p>
  
  <p>I'm trying to figure out if I can do incremental training during the "predict" phase, but cannot find an answer.</p>