Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/21504#discussion_r193936818
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/streaming/StreamingQueryManager.scala
---
@@ -55,6 +57,19 @@ class StreamingQueryManager private[sql] (sparkSession:
SparkSession) extends Lo
@GuardedBy("awaitTerminationLock")
private var lastTerminatedQuery: StreamingQuery = null
+ try {
+ sparkSession.sparkContext.conf.get(STREAMING_QUERY_LISTENERS).foreach
{ classNames =>
+ Utils.loadExtensions(classOf[StreamingQueryListener], classNames,
+ sparkSession.sparkContext.conf).foreach(listener => {
+ addListener(listener)
+ logInfo(s"Registered listener ${listener.getClass.getName}")
+ })
+ }
+ } catch {
+ case e: Exception =>
+ throw new SparkException(s"Exception when registering
StreamingQueryListener", e)
--- End diff --
nit: `s` seems not needed.
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