title: How to submit a SPARK job of which the jar is hosted in S3 object store
body: <p>I have a SPARK cluster with Yarn, and I want to put my job's jar into a S3 100% compatible Object Store. If I want to submit the job, I search from google and seems that just simply as this way:
  spark-submit --master yarn --deploy-mode cluster &lt;...other parameters...> s3://my_ bucket/jar_file
  However the S3 Object Store required user name and password to access. So how I can config those credential information to let SPARRK download the jar from S3?
  Many thanks!</p>