Github user zjffdu commented on a diff in the pull request:
https://github.com/apache/spark/pull/14784#discussion_r76950704
--- Diff: R/pkg/R/sparkR.R ---
@@ -365,6 +365,10 @@ sparkR.session <- function(
}
overrideEnvs(sparkConfigMap, paramMap)
}
+ if (nzchar(master)) {
+ assign("spark.master", master, envir = sparkConfigMap)
--- End diff --
I don't know why we prefer named parameter especially for `master`. Because
in spark-submit, it seems we prefer `--master` over `--conf spark.master`. And
considering `master` is the first parameter, it gives users the impression that
it is prefered.
The following command will run on local mode
```
bin/spark-shell --master local --conf spark.master=yarn-client
```
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