Hi Govindarajan, evert task is executed by exactly one thread. Thus, it should be fine to use Thread local variables. However be aware that a single Task can execute multiple operators if they are chained.
Cheers, Till On Wed, Aug 9, 2017 at 6:49 AM, Govindarajan Srinivasaraghavan < govindragh...@gmail.com> wrote: > Hi, > > I have a complex algorithm running on a flatmap operator and it requires > cache and metrics instances to be passed to various classes. Since the task > slots run on the same JVM, I'm not sure if I will be able to use static > members or singleton classes. Can I use ThreadLocal variables to isolate > the data on a task slot or is there any other approach? Thanks. >
