[GitHub] [spark] warrenzhu25 commented on a change in pull request #30175: [SPARK-33274][SS] Fix job hang in cp mode when total cores less than total kafka partition

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

warrenzhu25 commented on a change in pull request #30175:
URL: https://github.com/apache/spark/pull/30175#discussion_r565566452



##########
File path: sql/core/src/test/scala/org/apache/spark/sql/streaming/continuous/ContinuousSuite.scala
##########
@@ -37,7 +37,9 @@ class ContinuousSuiteBase extends StreamTest {
     new SparkContext(
       "local[10]",
       "continuous-stream-test-sql-context",
-      sparkConf.set("spark.sql.testkey", "true")))
+      sparkConf.set("spark.sql.testkey", "true")
+        .set("spark.executor.cores", "10")
+    ))

Review comment:
       Added test case

##########
File path: sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/continuous/EpochCoordinator.scala
##########
@@ -267,4 +275,16 @@ private[continuous] class EpochCoordinator(
       queryWritesStopped = true
       context.reply(())
   }
+
+  private def checkTotalCores(): Unit = {
+    val numExecutors = session.conf.get("spark.executor.instances", "1").toInt
+    val coresPerExecutor = session.conf.get("spark.executor.cores", "1").toInt
+    val totalCores = numExecutors * coresPerExecutor
+    logDebug(s"Check total cores $totalCores and kafka partition number $numReaderPartitions")

Review comment:
       Updated.




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