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https://issues.apache.org/jira/browse/SPARK-23390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16644036#comment-16644036
]
Shixiong Zhu commented on SPARK-23390:
--------------------------------------
I didn't look at parquet. It may have a similar issue.
> Flaky test: FileBasedDataSourceSuite
> ------------------------------------
>
> Key: SPARK-23390
> URL: https://issues.apache.org/jira/browse/SPARK-23390
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.0, 2.4.0
> Reporter: Sameer Agarwal
> Assignee: Wenchen Fan
> Priority: Critical
>
> *RECENT HISTORY*
> [http://spark-tests.appspot.com/test-details?suite_name=org.apache.spark.sql.FileBasedDataSourceSuite&test_name=%28It+is+not+a+test+it+is+a+sbt.testing.SuiteSelector%29]
>
> ----
> We're seeing multiple failures in {{FileBasedDataSourceSuite}} in
> {{spark-branch-2.3-test-sbt-hadoop-2.7}}:
> {code:java}
> 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:java}
> [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.
> The following is Parquet leakage.
> {code:java}
> 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.<init>(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}
> -
> [https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-branch-2.3-test-sbt-hadoop-2.7/322/]
> (May 3rd)
> -
> [https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-branch-2.3-test-sbt-hadoop-2.7/331/]
> (May 9th)
> - [https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/90536]
> (May 11st)
> -
> [https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-branch-2.3-test-sbt-hadoop-2.7/342/]
> (May 16th)
> -
> [https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-branch-2.3-test-sbt-hadoop-2.7/347/]
> (May 19th)
> -
> [https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-branch-2.3-test-sbt-hadoop-2.7/367/]
> (June 2nd)
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