Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/15852#discussion_r88580974
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamTest.scala ---
@@ -330,34 +331,51 @@ trait StreamTest extends QueryTest with
SharedSQLContext with Timeouts {
startedTest.foreach { action =>
logInfo(s"Processing test stream action: $action")
action match {
- case StartStream(trigger, triggerClock) =>
+ case StartStream(trigger, triggerClock, additionalConfs) =>
verify(currentStream == null, "stream already running")
verify(triggerClock.isInstanceOf[SystemClock]
|| triggerClock.isInstanceOf[StreamManualClock],
"Use either SystemClock or StreamManualClock to start the
stream")
if (triggerClock.isInstanceOf[StreamManualClock]) {
manualClockExpectedTime =
triggerClock.asInstanceOf[StreamManualClock].getTimeMillis()
}
- lastStream = currentStream
- currentStream =
- spark
- .streams
- .startQuery(
- None,
- Some(metadataRoot),
- stream,
- sink,
- outputMode,
- trigger = trigger,
- triggerClock = triggerClock)
- .asInstanceOf[StreamExecution]
- currentStream.microBatchThread.setUncaughtExceptionHandler(
- new UncaughtExceptionHandler {
- override def uncaughtException(t: Thread, e: Throwable):
Unit = {
- streamDeathCause = e
- }
+
+ val resetConfValues = mutable.Map[String, Option[String]]()
+ try {
+ additionalConfs.foreach(pair => {
+ val value =
+ if (spark.conf.contains(pair._1))
Some(spark.conf.get(pair._1)) else None
+ resetConfValues(pair._1) = value
+ spark.conf.set(pair._1, pair._2)
})
+ lastStream = currentStream
+ currentStream =
+ spark
+ .streams
+ .startQuery(
+ None,
+ Some(metadataRoot),
+ stream,
+ sink,
+ outputMode,
+ trigger = trigger,
+ triggerClock = triggerClock)
+ .asInstanceOf[StreamExecution]
+ currentStream.microBatchThread.setUncaughtExceptionHandler(
+ new UncaughtExceptionHandler {
+ override def uncaughtException(t: Thread, e: Throwable):
Unit = {
+ streamDeathCause = e
+ }
+ })
+ } finally {
+ // Rollback previous configuration values
+ resetConfValues.foreach {
--- End diff --
The reset logic should be at the end of the method. Otherwise, it will
change confs during a query is running.
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