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https://issues.apache.org/jira/browse/SPARK-37578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17465498#comment-17465498
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Apache Spark commented on SPARK-37578:
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User 'viirya' has created a pull request for this issue:
https://github.com/apache/spark/pull/35028
> DSV2 is not updating Output Metrics
> -----------------------------------
>
> Key: SPARK-37578
> URL: https://issues.apache.org/jira/browse/SPARK-37578
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.0.3, 3.1.2
> Reporter: Sandeep Katta
> Priority: Major
>
> Repro code
> ./bin/spark-shell --master local --jars
> /Users/jars/iceberg-spark3-runtime-0.12.1.jar
>
> {code:java}
> import scala.collection.mutable
> import org.apache.spark.scheduler._val bytesWritten = new
> mutable.ArrayBuffer[Long]()
> val recordsWritten = new mutable.ArrayBuffer[Long]()
> val bytesWrittenListener = new SparkListener() {
> override def onTaskEnd(taskEnd: SparkListenerTaskEnd): Unit = {
> bytesWritten += taskEnd.taskMetrics.outputMetrics.bytesWritten
> recordsWritten += taskEnd.taskMetrics.outputMetrics.recordsWritten
> }
> }
> spark.sparkContext.addSparkListener(bytesWrittenListener)
> try {
> val df = spark.range(1000).toDF("id")
> df.write.format("iceberg").save("Users/data/dsv2_test")
>
> assert(bytesWritten.sum > 0)
> assert(recordsWritten.sum > 0)
> } finally {
> spark.sparkContext.removeSparkListener(bytesWrittenListener)
> } {code}
>
>
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