Sameer Agarwal created SPARK-23390:
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Summary: Flaky Test Suite: FileBasedDataSourceSuite in Spark
2.3/hadoop 2.7
Key: SPARK-23390
URL: https://issues.apache.org/jira/browse/SPARK-23390
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.3.0
Reporter: Sameer Agarwal
We're seeing multiple failures in {{FileBasedDataSourceSuite}} in
{{spark-branch-2.3-test-sbt-hadoop-2.7}}:
{code}
org.scalatest.exceptions.TestFailedDueToTimeoutException: The code passed to
eventually never returned normally. Attempted 15 times over 10.012158059999999
seconds. Last failure message: There are 1 possibly leaked file streams..
{code}
Here's the full history:
https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-branch-2.3-test-sbt-hadoop-2.7/189/testReport/org.apache.spark.sql/FileBasedDataSourceSuite/history/
>From a very quick look, these failures seem to be correlated with
>https://github.com/apache/spark/pull/20479 (cc [~dongjoon]) as evident from
>the following stack trace (full logs
>[here|https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-branch-2.3-test-sbt-hadoop-2.7/189/console]):
>
{code}
[info] - Enabling/disabling ignoreMissingFiles using orc (648 milliseconds)
15:55:58.673 WARN org.apache.spark.scheduler.TaskSetManager: Lost task 0.0 in
stage 61.0 (TID 85, localhost, executor driver): TaskKilled (Stage cancelled)
15:55:58.674 WARN org.apache.spark.DebugFilesystem: Leaked filesystem
connection created at:
java.lang.Throwable
at
org.apache.spark.DebugFilesystem$.addOpenStream(DebugFilesystem.scala:36)
at org.apache.spark.DebugFilesystem.open(DebugFilesystem.scala:70)
at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:769)
at
org.apache.orc.impl.RecordReaderUtils$DefaultDataReader.open(RecordReaderUtils.java:173)
at
org.apache.orc.impl.RecordReaderImpl.<init>(RecordReaderImpl.java:254)
at org.apache.orc.impl.ReaderImpl.rows(ReaderImpl.java:633)
at
org.apache.spark.sql.execution.datasources.orc.OrcColumnarBatchReader.initialize(OrcColumnarBatchReader.java:138)
{code}
Also, while this might be just a false correlation but the frequency of these
test failures have increased considerably in
https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-branch-2.3-test-sbt-hadoop-2.7/
after https://github.com/apache/spark/pull/20562 (cc
[~feng...@databricks.com]) was merged.
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