Github user zjffdu commented on the pull request:
https://github.com/apache/spark/pull/6360#issuecomment-166224830
@vanzin I am reading the yarn related code specially on
org.apache.spark.deploy.yarn.Client.scala
Do you know where LOCAL_SCHEME("local") come from ? As I know we use
file:// to represent a local resource, so not sure where "local" come from.
Another question is that if I specify spark.yarn.jar as a hdfs location,
the yarn client will still copy it to staging directory, I don't know why we do
this. Would just use the hdfs file as LocalResource without copying much easier
?
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