Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/6271#discussion_r30668275
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/DStreamGraph.scala ---
@@ -157,10 +157,10 @@ final private[streaming] class DStreamGraph extends
Serializable with Logging {
def validate() {
this.synchronized {
- assert(batchDuration != null, "Batch duration has not been set")
+ require(batchDuration != null, "Batch duration has not been set")
// assert(batchDuration >= Milliseconds(100), "Batch duration of " +
batchDuration +
// " is very low")
- assert(getOutputStreams().size > 0, "No output streams registered,
so nothing to execute")
+ require(getOutputStreams().size > 0, "No output streams registered,
so nothing to execute")
--- End diff --
Can you change the message to "No output operations registered..."
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