[jira] [Created] (SPARK-23962) Flaky tests from SQLMetricsTestUtils.currentExecutionIds

["Imran Rashid (JIRA)" <ji...@apache.org>]

Imran Rashid created SPARK-23962:
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             Summary: 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
         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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