Github user tejasapatil commented on a diff in the pull request:
https://github.com/apache/spark/pull/12194#discussion_r64861159
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/ScriptTransformation.scala
---
@@ -127,45 +127,78 @@ case class ScriptTransformation(
}
val mutableRow = new SpecificMutableRow(output.map(_.dataType))
+ private def checkFailureAndPropagate(cause: Throwable = null):
Unit = {
+ if (writerThread.exception.isDefined) {
+ throw writerThread.exception.get
+ }
+
+ // Checks if the proc is still alive (incase the command ran was
bad)
+ // The ideal way to do this is to use Java 8's Process#isAlive()
+ // but it cannot be used because Spark still supports Java 7.
+ // Following is a workaround used to check if a process is alive
in Java 7
+ // TODO: Once builds are switched to Java 8, this can be changed
+ try {
+ val exitCode = proc.exitValue()
+ if (exitCode != 0) {
+ logError(stderrBuffer.toString) // log the stderr circular
buffer
+ throw new SparkException(s"Subprocess exited with status
$exitCode. " +
+ s"Error: ${stderrBuffer.toString}", cause)
--- End diff --
@sameeragarwal : Thanks for pointing that out. I will submit a separate PR
for that.
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