Did the stack trace look like the one from: https://issues.apache.org/jira/browse/HADOOP-12638
Cheers > On Jan 27, 2016, at 1:29 AM, Eli Super <eli.su...@gmail.com> wrote: > > > Hi > > I'm running spark locally on win 2012 R2 server > > No hadoop installed > > I'm getting following error : > > WARN ZlibFactory: Failed to load/initialize native-zlib library > > Is it something to wary about ? > > Thanks !