Issue:
SDC does not impersonate a proxy user set in Hadoop FS User in Hadoop FS origin. Instead, the pipeline submits the MapReduce job as the 'sdc' user.
Answer:
The impersonation is not working properly with HDFS origin as described in JIRA issue SDC-5039.
As a workaround, you can add the Hadoop proxy user in Pipeline configuration for Cluster Batch Execution Mode --> Cluster --> Launcher ENV as HADOOP_PROXY_USER (please see attached print screen). This way, the whole MapReduce job (cluster pipeline) runs under this ‘HADOOP_PROXY_USER’.
