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https://issues.apache.org/jira/browse/SPARK-23962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16434077#comment-16434077
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Apache Spark commented on SPARK-23962:
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User 'squito' has created a pull request for this issue:
https://github.com/apache/spark/pull/21041
> Flaky tests from SQLMetricsTestUtils.currentExecutionIds
> --------------------------------------------------------
>
> Key: SPARK-23962
> URL: https://issues.apache.org/jira/browse/SPARK-23962
> Project: Spark
> Issue Type: Improvement
> Components: SQL, Tests
> Affects Versions: 2.4.0
> Reporter: Imran Rashid
> Priority: Minor
> Attachments: unit-tests.log
>
>
> I've seen
> {{org.apache.spark.sql.execution.metric.SQLMetricsSuite.SortMergeJoin
> metrics}} fail
> https://amplab.cs.berkeley.edu/jenkins/job/NewSparkPullRequestBuilder/4150/testReport/org.apache.spark.sql.execution.metric/SQLMetricsSuite/SortMergeJoin_metrics/
>
> with
> {noformat}
> Error Message
> org.scalatest.exceptions.TestFailedException: 2 did not equal 1
> Stacktrace
> sbt.ForkMain$ForkError: org.scalatest.exceptions.TestFailedException: 2 did
> not equal 1
> at
> org.scalatest.Assertions$class.newAssertionFailedException(Assertions.scala:528)
> at
> org.scalatest.FunSuite.newAssertionFailedException(FunSuite.scala:1560)
> at
> org.scalatest.Assertions$AssertionsHelper.macroAssert(Assertions.scala:501)
> at
> org.apache.spark.sql.execution.metric.SQLMetricsTestUtils$class.getSparkPlanMetrics(SQLMetricsTestUtils.scala:146)
> at
> org.apache.spark.sql.execution.metric.SQLMetricsSuite.getSparkPlanMetrics(SQLMetricsSuite.scala:33)
> at
> org.apache.spark.sql.execution.metric.SQLMetricsTestUtils$class.testSparkPlanMetrics(SQLMetricsTestUtils.scala:187)
> at
> org.apache.spark.sql.execution.metric.SQLMetricsSuite.testSparkPlanMetrics(SQLMetricsSuite.scala:33)
> at
> org.apache.spark.sql.execution.metric.SQLMetricsSuite$$anonfun$7$$anonfun$apply$mcV$sp$1.apply$mcV$sp(SQLMetricsSuite.scala:188)
> at
> org.apache.spark.sql.test.SQLTestUtilsBase$class.withTempView(SQLTestUtils.scala:260)
> ...
> {noformat}
> I believe this is because {{SQLMetricsTestUtils.currentExecutionId()}} is
> racing with the listener bus.
> I'll attach trimmed logs as well
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