Hi,
What is the concurrency model behind SparkListener or StreamingListener
callbacks?
1. Multiple threads might access callbacks simultaneously.
2. Callbacks are guaranteed to be executed by a single thread.(Thread ids might
change on consecutive calls, though)
I asked the same question on
Hi guys
I'm very new in spark land comming from old school MapReduce world. I
have no idea about scala. Does Java/Python API can compete with native
Scala API? Is Spark heavily scala centric and binding for other
languages are only for starting up and testing and serious work in spark
will