GitHub user dongjoon-hyun opened a pull request:
https://github.com/apache/spark/pull/13520
[SPARK-15773][CORE][EXAMPLE] Avoid creating local variable `sc` in examples
if possible
## What changes were proposed in this pull request?
Instead of using local variable `sc` like the following example, this PR
uses `spark.sparkContext`. This makes examples more concise, and also fixes
some misleading, i.e., creating SparkContext from SparkSession.
```
- println("Creating SparkContext")
- val sc = spark.sparkContext
-
println("Writing local file to DFS")
val dfsFilename = dfsDirPath + "/dfs_read_write_test"
- val fileRDD = sc.parallelize(fileContents)
+ val fileRDD = spark.sparkContext.parallelize(fileContents)
```
This will change 12 files (+30 lines, -52 lines).
## How was this patch tested?
Manual.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dongjoon-hyun/spark SPARK-15773
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13520.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #13520
----
commit 0a5d82fc8c1b3e0910231060090181e143e5215a
Author: Dongjoon Hyun <dongj...@apache.org>
Date: 2016-06-05T21:42:42Z
[SPARK-15773][CORE][EXAMPLE] Avoid creating local variable `sc` in examples
if possible
----
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