RDDs actually are thread-safe, and quite a few applications use them this way, e.g. the JDBC server.
Matei > On Jan 15, 2016, at 2:10 PM, Jakob Odersky <joder...@gmail.com> wrote: > > I don't think RDDs are threadsafe. > More fundamentally however, why would you want to run RDD actions in > parallel? The idea behind RDDs is to provide you with an abstraction for > computing parallel operations on distributed data. Even if you were to call > actions from several threads at once, the individual executors of your spark > environment would still have to perform operations sequentially. > > As an alternative, I would suggest to restructure your RDD transformations to > compute the required results in one single operation. > > On 15 January 2016 at 06:18, Jonathan Coveney <jcove...@gmail.com > <mailto:jcove...@gmail.com>> wrote: > Threads > > > El viernes, 15 de enero de 2016, Kira <mennou...@gmail.com > <mailto:mennou...@gmail.com>> escribió: > Hi, > > Can we run *simultaneous* actions on the *same RDD* ?; if yes how can this > be done ? > > Thank you, > Regards > > > > -- > View this message in context: > http://apache-spark-user-list.1001560.n3.nabble.com/simultaneous-actions-tp25977.html > > <http://apache-spark-user-list.1001560.n3.nabble.com/simultaneous-actions-tp25977.html> > Sent from the Apache Spark User List mailing list archive at Nabble.com. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@spark.apache.org <> > For additional commands, e-mail: user-h...@spark.apache.org <> > >
