Cheng Lian created SPARK-4091:
---------------------------------
Summary: Occasionally spark.local.dir can be deleted twice and
causes test failure
Key: SPARK-4091
URL: https://issues.apache.org/jira/browse/SPARK-4091
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 1.1.0
Reporter: Cheng Lian
By persisting an arbitrary RDD with storage level {{MEMORY_AND_DISK}}, Spark
may occasionally throw the following exception when shutting down:
{code}
java.io.IOException: Failed to list files for dir:
/var/folders/kh/r9ylmzln40n9nrlchnsry2qw0000gn/T/spark-local-20141027005012-5bcd/0b
at org.apache.spark.util.Utils$.listFilesSafely(Utils.scala:664)
at org.apache.spark.util.Utils$.deleteRecursively(Utils.scala:678)
at
org.apache.spark.util.Utils$$anonfun$deleteRecursively$1.apply(Utils.scala:680)
at
org.apache.spark.util.Utils$$anonfun$deleteRecursively$1.apply(Utils.scala:678)
at
scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:34)
at org.apache.spark.util.Utils$.deleteRecursively(Utils.scala:678)
at
org.apache.spark.util.Utils$$anon$4$$anonfun$run$1$$anonfun$apply$mcV$sp$2.apply(Utils.scala:177)
at
org.apache.spark.util.Utils$$anon$4$$anonfun$run$1$$anonfun$apply$mcV$sp$2.apply(Utils.scala:175)
at scala.collection.mutable.HashSet.foreach(HashSet.scala:79)
at
org.apache.spark.util.Utils$$anon$4$$anonfun$run$1.apply$mcV$sp(Utils.scala:175)
at
org.apache.spark.util.Utils$$anon$4$$anonfun$run$1.apply(Utils.scala:173)
at
org.apache.spark.util.Utils$$anon$4$$anonfun$run$1.apply(Utils.scala:173)
at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1323)
at org.apache.spark.util.Utils$$anon$4.run(Utils.scala:173)
{code}
By adding log output to {{Utils.deleteRecursively}}, setting breakpoints at
{{File.delete}} in IntelliJ, and asking IntelliJ to evaluate and log
{{Thread.currentThread().getStackTrace()}} when the breakpoint is hit rather
than suspend execution, we can get the following result, which shows
{{spark.local.dir}} is deleted twice from both {{DiskBlockManager.stop}} and
the shutdown hook installed in {{Utils}}:
{code}
+++ Deleting file:
/var/folders/kh/r9ylmzln40n9nrlchnsry2qw0000gn/T/spark-local-20141027003412-7fae/1d
Breakpoint reached at java.io.File.delete(File.java:1028)
[java.lang.Thread.getStackTrace(Thread.java:1589)
java.io.File.delete(File.java:1028)
org.apache.spark.util.Utils$.deleteRecursively(Utils.scala:695)
org.apache.spark.util.Utils$$anon$4$$anonfun$run$1$$anonfun$apply$mcV$sp$2.apply(Utils.scala:177)
org.apache.spark.util.Utils$$anon$4$$anonfun$run$1$$anonfun$apply$mcV$sp$2.apply(Utils.scala:175)
scala.collection.mutable.HashSet.foreach(HashSet.scala:79)
org.apache.spark.util.Utils$$anon$4$$anonfun$run$1.apply$mcV$sp(Utils.scala:175)
org.apache.spark.util.Utils$$anon$4$$anonfun$run$1.apply(Utils.scala:173)
org.apache.spark.util.Utils$$anon$4$$anonfun$run$1.apply(Utils.scala:173)
org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1323)
org.apache.spark.util.Utils$$anon$4.run(Utils.scala:173)]
+++ Deleting file:
/var/folders/kh/r9ylmzln40n9nrlchnsry2qw0000gn/T/spark-local-20141027003412-7fae/1d
Breakpoint reached at java.io.File.delete(File.java:1028)
[java.lang.Thread.getStackTrace(Thread.java:1589)
java.io.File.delete(File.java:1028)
org.apache.spark.util.Utils$.deleteRecursively(Utils.scala:695)
org.apache.spark.util.Utils$$anonfun$deleteRecursively$1.apply(Utils.scala:680)
org.apache.spark.util.Utils$$anonfun$deleteRecursively$1.apply(Utils.scala:678)
scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:34)
org.apache.spark.util.Utils$.deleteRecursively(Utils.scala:678)
org.apache.spark.storage.DiskBlockManager$$anonfun$stop$1.apply(DiskBlockManager.scala:157)
org.apache.spark.storage.DiskBlockManager$$anonfun$stop$1.apply(DiskBlockManager.scala:154)
scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:108)
org.apache.spark.storage.DiskBlockManager.stop(DiskBlockManager.scala:154)
org.apache.spark.storage.DiskBlockManager$$anon$1$$anonfun$run$1.apply$mcV$sp(DiskBlockManager.scala:147)
org.apache.spark.storage.DiskBlockManager$$anon$1$$anonfun$run$1.apply(DiskBlockManager.scala:145)
org.apache.spark.storage.DiskBlockManager$$anon$1$$anonfun$run$1.apply(DiskBlockManager.scala:145)
org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1323)
org.apache.spark.storage.DiskBlockManager$$anon$1.run(DiskBlockManager.scala:145)]
{code}
When this bug happens during Jenkins build, it fails {{CliSuite}}.
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