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Session '-1' not found. (error 404)

Session '-1' not found. (error 404)

Explorer

I'm using Hue 3.12. and have installed Livy on Ambari with spark2 and YARN.

When I'm trying to run sample script this is an error I'm getting. I have read about giving permission like this:

$ sudo -u hdfs hadoop fs -chmod 777 /user/spark
$ sudo -u spark hadoop fs -chmod 777 /user/spark/applicationHistory


But well, not working for me, beacuse I don't have any folders in /user/spark/ like 'applicationHistory'. Does anyone has any of solutions what it might be. I'm assuming by the code that we are talking about 'timeout' error and he can't reach Livy.

Ty :)