Hi
I have a problem with temp data in Spark. I have fixed
spark.shuffle.manager to "SORT". In /etc/secucity/limits.conf set the next
values:
* soft nofile 1000000
* hard nofile 1000000
In spark-env.sh set ulimit -n 1000000
I've restarted the spark service and it continues crashing (Too many open
files)
How can I resolve? I'm executing Spark 1.2.0 in Cloudera 5.3.2
java.io.FileNotFoundException:
/tmp/spark-local-20150330115312-37a7/2f/temp_shuffle_c4ba5bce-c516-4a2a-9e40-56121eb84a8c
(Too many open files)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:221)
at
org.apache.spark.storage.DiskBlockObjectWriter.open(BlockObjectWriter.scala:123)
at
org.apache.spark.util.collection.ExternalSorter$$anonfun$spillToPartitionFiles$1.apply(ExternalSorter.scala:360)
at
org.apache.spark.util.collection.ExternalSorter$$anonfun$spillToPartitionFiles$1.apply(ExternalSorter.scala:355)
at scala.Array$.fill(Array.scala:267)
at
org.apache.spark.util.collection.ExternalSorter.spillToPartitionFiles(ExternalSorter.scala:355)
at
org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:211)
at
org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:65)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
at org.apache.spark.scheduler.Task.run(Task.scala:56)
at
org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:196)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
15/03/30 11:54:18 WARN TaskSetManager: Lost task 22.0 in stage 3.0 (TID 27,
localhost): java.io.FileNotFoundException:
/tmp/spark-local-20150330115312-37a7/2f/temp_shuffle_c4ba5bce-c516-4a2a-9e40-56121eb84a8c
(Too many open files)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:221)
at
org.apache.spark.storage.DiskBlockObjectWriter.open(BlockObjectWriter.scala:123)
at
org.apache.spark.util.collection.ExternalSorter$$anonfun$spillToPartitionFiles$1.apply(ExternalSorter.scala:360)
at
org.apache.spark.util.collection.ExternalSorter$$anonfun$spillToPartitionFiles$1.apply(ExternalSorter.scala:355)
at scala.Array$.fill(Array.scala:267)
at
org.apache.spark.util.collection.ExternalSorter.spillToPartitionFiles(ExternalSorter.scala:355)
at
org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:211)
at
org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:65)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
at org.apache.spark.scheduler.Task.run(Task.scala:56)
at
org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:196)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Thanks!!!!!
--
Regards.
Miguel Ángel
