Re: Parallel actions from driver

2015-03-27 Thread Harut Martirosyan
This is exactly my case also, it worked, thanks Sean. On 26 March 2015 at 23:35, Sean Owen so...@cloudera.com wrote: You can do this much more simply, I think, with Scala's parallel collections (try .par). There's nothing wrong with doing this, no. Here, something is getting caught in your

Re: Parallel actions from driver

2015-03-26 Thread Sean Owen
You can do this much more simply, I think, with Scala's parallel collections (try .par). There's nothing wrong with doing this, no. Here, something is getting caught in your closure, maybe unintentionally, that's not serializable. It's not directly related to the parallelism. On Thu, Mar 26,

Parallel actions from driver

2015-03-26 Thread Aram Mkrtchyan
Hi. I'm trying to trigger DataFrame's save method in parallel from my driver. For that purposes I use ExecutorService and Futures, here's my code: val futures = [1,2,3].map( t = pool.submit( new Runnable { override def run(): Unit = { val commons = events.filter(_._1 == t).map(_._2.common)