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I have some code where I need to run an HDFS command in Python to check if a file is present. See below for an example:
command = 'hdfs dfs -ls /sandbox'
ssh = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE).communicate()
When I run this in a Jupyter notebook in Dataiku, the command completes without any problems. However, when I run the notebook as a Python recipe, I get the following error message multiple times:
java.io.IOException: Failed on local exception: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)];
It looks as if there is a problem with Kerberos when I run the Jupyter notebook as a Recipe. What is the reason for this? Is there a Dataiku setting I can change to make sure the Kerberos ticket is generated properly?