Hi!
From a java program, I can get access to secure HDFS from a task by use
of the HDFS delegation tokens. They are available in a file which is
pointed to by the HADOOP_TOKEN_FILE_LOCATION environment variable, and
there's a Java API for reading this file and get the token.
However, if I have a streaming job and that job needs to do something to
HDFS - in my case reading a configuration file, how can I retrieve the
token? The file is a java-serialized binary one, so it's not as simple
as just reading the file from say python.
Writing a small java program that reads the file and outputs the token
as json is one option. Are there any other options?
Regards,
\EF
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