Hi Twinkle, Registering the class makes it so that writeClass only writes out a couple bytes, instead of a full String of the class name.
-Sandy On Thu, Apr 30, 2015 at 4:13 AM, twinkle sachdeva < twinkle.sachd...@gmail.com> wrote: > Hi, > > As per the code, KryoSerialization used writeClassAndObject method, which > internally calls writeClass method, which will write the class of the > object while serilization. > > As per the documentation in tuning page of spark, it says that registering > the class will avoid that. > > Am I missing something or there is some issue with the documentation??? > > Thanks, > Twinkle >