Spark production scenario

["☼ R Nair (रविशंकर नायर)" <ra...@gmail.com>]

Hi all,

We are going to move to production with an 8 node Spark cluster. Request
some help for below

We are running on YARN cluster manager.That means YARN is installed with
SSH between the nodes. When we run a standalone Spark program with
spark-submit, YARN initializes a resource manager followed by application
master per application. This is allocated randomely with arbitrary port.
So, would we be opening all ports in between the nodes in a production
implementation ?

Best,
Passion

Re: Spark production scenario

[yncxcw <yn...@gmail.com>]

hi, Passion

I don't know an exact solution. But yes, the port each executor chosen to
communicate with driver is random.  I am wondering if it's possible that you
can have a node has two ethernet card, configure one card for intranet for
Spark and configure one card for WAN. Then connect the rests nodes using the
intranet. 

And also, I think you might not use WAN for Spark data transfer since the
amount of data during shuffle is huge. You got to have a high-speed switch
for your cluster.

Hopes this answer can help you!


Wei



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