Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/6271#discussion_r30668399
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/dstream/DStream.scala ---
@@ -217,53 +217,53 @@ abstract class DStream[T: ClassTag] (
case StreamingContextState.INITIALIZED =>
// good to go
case StreamingContextState.ACTIVE =>
- throw new SparkException(
+ throw new IllegalStateException(
"Adding new inputs, transformations, and output operations after
" +
"starting a context is not supported")
case StreamingContextState.STOPPED =>
- throw new SparkException(
+ throw new IllegalStateException(
"Adding new inputs, transformations, and output operations after
" +
"stopping a context is not supported")
}
}
private[streaming] def validateAtStart() {
- assert(rememberDuration != null, "Remember duration is set to null")
+ require(rememberDuration != null, "Remember duration is set to null")
- assert(
+ require(
!mustCheckpoint || checkpointDuration != null,
"The checkpoint interval for " + this.getClass.getSimpleName + " has
not been set." +
" Please use DStream.checkpoint() to set the interval."
)
- assert(
+ require(
checkpointDuration == null ||
context.sparkContext.checkpointDir.isDefined,
"The checkpoint directory has not been set. Please use
StreamingContext.checkpoint()" +
" or SparkContext.checkpoint() to set the checkpoint directory."
)
- assert(
+ require(
checkpointDuration == null || checkpointDuration >= slideDuration,
"The checkpoint interval for " + this.getClass.getSimpleName + " has
been set to " +
checkpointDuration + " which is lower than its slide time (" +
slideDuration + "). " +
"Please set it to at least " + slideDuration + "."
)
- assert(
+ require(
checkpointDuration == null ||
checkpointDuration.isMultipleOf(slideDuration),
"The checkpoint interval for " + this.getClass.getSimpleName + " has
been set to " +
checkpointDuration + " which not a multiple of its slide time (" +
slideDuration + "). " +
"Please set it to a multiple " + slideDuration + "."
--- End diff --
"multiple" ---> "multiple of"
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