[jira] [Created] (SPARK-4881) Use SparkConf#getBoolean instead of get().toBoolean

["Kousuke Saruta (JIRA)" <ji...@apache.org>]

Kousuke Saruta created SPARK-4881:
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             Summary: Use SparkConf#getBoolean instead of get().toBoolean
                 Key: SPARK-4881
                 URL: https://issues.apache.org/jira/browse/SPARK-4881
             Project: Spark
          Issue Type: Improvement
          Components: YARN
    Affects Versions: 1.3.0
            Reporter: Kousuke Saruta
            Priority: Minor


It's really a minor issue.

In ApplicationMaster, there is code like as follows.

{code}
      val preserveFiles = sparkConf.get("spark.yarn.preserve.staging.files", "false").toBoolean
{code}

I think, the code can be simplified like as follows.

{code}
      val preserveFiles = sparkConf.getBoolean("spark.yarn.preserve.staging.files", false)
{code}



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