[GitHub] [spark] uncleGen commented on a change in pull request #24283: [SPARK-27355][SS] Make query execution more sensitive to epoch message late or lost

[GitBox <gi...@apache.org>]

uncleGen commented on a change in pull request #24283: [SPARK-27355][SS] Make query execution more sensitive to epoch message late or lost
URL: https://github.com/apache/spark/pull/24283#discussion_r272196012
 
 

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 File path: sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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 @@ -1453,6 +1453,13 @@ object SQLConf {
 
   val CONTINUOUS_STREAMING_EPOCH_BACKLOG_QUEUE_SIZE =
     buildConf("spark.sql.streaming.continuous.epochBacklogQueueSize")
+      .doc("The max number of entries to be stored in queue to wait for late epochs. " +
+        "If this parameter is exceeded by the size of the queue, stream will stop with an error.")
+      .intConf
+      .createWithDefault(10)
+
+  val CONTINUOUS_STREAMING_EPOCH_MSG_BACKLOG_QUEUE_SIZE =
+    buildConf("spark.sql.streaming.continuous.epochMessageBacklogQueueSize")
 
 Review comment:
   get it

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