question Re: Spark livy execution from nifi: livy-session are keep instantiating. in Support Questions

Spark livy execution from nifi: livy-session are keep instantiating.

shashank_naresh — Fri, 06 Nov 2020 15:00:52 GMT

Hi All,

I am running spark (livy) from nifi. Currently using HDP 3.0/HDF 3.1 the CDA version.

I was running spark livy through nifi. I could see that nifi flow was completed successfully. But there were several livy-session keep executing in Yarn. I've tried to kill some of them but they were re-appearing in Yarn.

This is causing issue that these livy sessions are consuming CPUs even though I am not running any spark application through livy-nifi.

I am not sure how to resolve this issue. Needed your help here.

Re: Spark livy execution from nifi: livy-session are keep instantiating.

shashank_naresh — Fri, 06 Nov 2020 16:55:26 GMT

Hi @TimothySpann

Could you please help here.

Re: Spark livy execution from nifi: livy-session are keep instantiating.

TimothySpann — Fri, 06 Nov 2020 17:22:06 GMT

I don't recommend using the spark livy connector anymore.

Also by default it's not setup for use for anything other than zeppelin.

i would connect via kafka.

in nifi you can check the livy controller settings and make sure it's not respawning new ones.