[jira] [Commented] (SPARK-23390) Flaky Test Suite: FileBasedDataSourceSuite in Spark 2.3/hadoop 2.7
[
https://issues.apache.org/jira/browse/SPARK-23390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16372360#comment-16372360
]
Liang-Chi Hsieh commented on SPARK-23390:
-
{{FileBasedDataSourceSuite}} seems still flaky.
[https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/87603/testReport/org.apache.spark.sql/FileBasedDataSourceSuite/_It_is_not_a_test_it_is_a_sbt_testing_SuiteSelector_/]
[https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/87600/testReport/org.apache.spark.sql/FileBasedDataSourceSuite/_It_is_not_a_test_it_is_a_sbt_testing_SuiteSelector_/]
> 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
>Assignee: Wenchen Fan
>Priority: Major
>
> 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
> 10.01215805999 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.(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.
> The following is Parquet leakage.
> {code}
> Caused by: sbt.ForkMain$ForkError: java.lang.Throwable: null
> at
> org.apache.spark.DebugFilesystem$.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.parquet.hadoop.ParquetFileReader.(ParquetFileReader.java:538)
> at
> org.apache.spark.sql.execution.datasources.parquet.SpecificParquetRecordReaderBase.initialize(SpecificParquetRecordReaderBase.java:149)
> at
> org.apache.spark.sql.execution.datasources.parquet.VectorizedParquetRecordReader.initialize(VectorizedParquetRecordReader.java:133)
> at
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat$$anonfun$buildReaderWithPartitionValues$1.apply(ParquetFileFormat.scala:400)
> at
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat$$anonfun$buildReaderWithPartitionValues$1.apply(ParquetFileFormat.scala:356)
> at
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.org$apache$spark$sql$execution$datasources$FileScanRDD$$anon$$readCurrentFile(FileScanRDD.scala:125)
> at
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.nextIterator(FileScanRDD.scala:179)
> at
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.hasNext(FileScanRDD.scala:106)
> {code}
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[jira] [Commented] (SPARK-23390) Flaky Test Suite: FileBasedDataSourceSuite in Spark 2.3/hadoop 2.7
[
https://issues.apache.org/jira/browse/SPARK-23390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16369564#comment-16369564
]
Dongjoon Hyun commented on SPARK-23390:
---
Since this is not a regression for both Parquet(not a regression) and ORC (new
ORC is disabled by default), I'll remove the target version from this to
unblock RC4.
cc [~cloud_fan] and [~sameerag]
> 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
>Assignee: Wenchen Fan
>Priority: Major
>
> 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
> 10.01215805999 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.(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.
> The following is Parquet leakage.
> {code}
> Caused by: sbt.ForkMain$ForkError: java.lang.Throwable: null
> 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.parquet.hadoop.ParquetFileReader.(ParquetFileReader.java:538)
> at
> org.apache.spark.sql.execution.datasources.parquet.SpecificParquetRecordReaderBase.initialize(SpecificParquetRecordReaderBase.java:149)
> at
> org.apache.spark.sql.execution.datasources.parquet.VectorizedParquetRecordReader.initialize(VectorizedParquetRecordReader.java:133)
> at
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat$$anonfun$buildReaderWithPartitionValues$1.apply(ParquetFileFormat.scala:400)
> at
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat$$anonfun$buildReaderWithPartitionValues$1.apply(ParquetFileFormat.scala:356)
> at
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.org$apache$spark$sql$execution$datasources$FileScanRDD$$anon$$readCurrentFile(FileScanRDD.scala:125)
> at
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.nextIterator(FileScanRDD.scala:179)
> at
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.hasNext(FileScanRDD.scala:106)
> {code}
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[jira] [Commented] (SPARK-23390) Flaky Test Suite: FileBasedDataSourceSuite in Spark 2.3/hadoop 2.7
[
https://issues.apache.org/jira/browse/SPARK-23390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16365927#comment-16365927
]
Apache Spark commented on SPARK-23390:
--
User 'dongjoon-hyun' has created a pull request for this issue:
https://github.com/apache/spark/pull/20619
> 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
>Assignee: Wenchen Fan
>Priority: Major
> Fix For: 2.3.0
>
>
> 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
> 10.01215805999 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$DefaultDataReader.open(RecordReaderUtils.java:173)
> at
> org.apache.orc.impl.RecordReaderImpl.(RecordReaderImpl.java:254)
> at org.apache.orc.impl.ReaderImpl.rows(ReaderImpl.java:633)
> at
> org.apache.spark.sql.execution.datasources.orc.OrcColumnarBatchReader.initialize(OrcColumnarBatchReader.java:138)
> {code}
> Also, while this might be just a false correlation but the frequency of these
> test failures have increased considerably in
> https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-branch-2.3-test-sbt-hadoop-2.7/
> after https://github.com/apache/spark/pull/20562 (cc
> [~feng...@databricks.com]) was merged.
> The following is Parquet leakage.
> {code}
> Caused by: sbt.ForkMain$ForkError: java.lang.Throwable: null
> 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.parquet.hadoop.ParquetFileReader.(ParquetFileReader.java:538)
> at
> org.apache.spark.sql.execution.datasources.parquet.SpecificParquetRecordReaderBase.initialize(SpecificParquetRecordReaderBase.java:149)
> at
> org.apache.spark.sql.execution.datasources.parquet.VectorizedParquetRecordReader.initialize(VectorizedParquetRecordReader.java:133)
> at
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat$$anonfun$buildReaderWithPartitionValues$1.apply(ParquetFileFormat.scala:400)
> at
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat$$anonfun$buildReaderWithPartitionValues$1.apply(ParquetFileFormat.scala:356)
> at
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.org$apache$spark$sql$execution$datasources$FileScanRDD$$anon$$readCurrentFile(FileScanRDD.scala:125)
> at
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.nextIterator(FileScanRDD.scala:179)
> at
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.hasNext(FileScanRDD.scala:106)
> {code}
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[jira] [Commented] (SPARK-23390) Flaky Test Suite: FileBasedDataSourceSuite in Spark 2.3/hadoop 2.7
[
https://issues.apache.org/jira/browse/SPARK-23390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16361537#comment-16361537
]
Apache Spark commented on SPARK-23390:
--
User 'gatorsmile' has created a pull request for this issue:
https://github.com/apache/spark/pull/20591
> 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
>Assignee: Wenchen Fan
>Priority: Major
> Fix For: 2.3.0
>
>
> 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
> 10.01215805999 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.(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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[jira] [Commented] (SPARK-23390) Flaky Test Suite: FileBasedDataSourceSuite in Spark 2.3/hadoop 2.7
[
https://issues.apache.org/jira/browse/SPARK-23390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16360304#comment-16360304
]
Apache Spark commented on SPARK-23390:
--
User 'cloud-fan' has created a pull request for this issue:
https://github.com/apache/spark/pull/20584
> 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
>Priority: Major
>
> 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
> 10.01215805999 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.(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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[jira] [Commented] (SPARK-23390) Flaky Test Suite: FileBasedDataSourceSuite in Spark 2.3/hadoop 2.7
[
https://issues.apache.org/jira/browse/SPARK-23390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16360225#comment-16360225
]
Sameer Agarwal commented on SPARK-23390:
I ran this test locally 50 times and it passed every time. Therefore, I'm
currently not marking this as a release blocker as this could just be an
artifact of our test environment (possibly due to the order in which tests are
run).
Also, cc [~LI,Xiao] [~cloud_fan]
> 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
>Priority: Major
>
> 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
> 10.01215805999 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.(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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