Hi Meethu,

I believe you may be hitting a regression in https://issues.apache.org/jira/browse/SPARK-3633

If you are able, could you please try running a patched version of Spark 1.1.0 that has commit 4fde28c  reverted and see if the errors go away?  Posting your results on that bug would be useful, especially if the issues disappear after the revert.

Thanks!
Andrew

On Tue, Oct 7, 2014 at 8:27 AM, MEETHU MATHEW <meethu2006@yahoo.co.in> wrote:
Hi all,

My code was working fine in spark 1.0.2 ,but after upgrading to 1.1.0, its throwing exceptions and tasks are getting failed.

The code contains some map and filter transformations followed by groupByKey (reduceByKey in another code ). What I could find out is that the code works fine until  groupByKey  or reduceByKey  in both versions.But after that the following errors show up in Spark 1.1.0
 
java.io.FileNotFoundException: /tmp/spark-local-20141006173014-4178/35/shuffle_6_0_5161 (Too many open files)
        java.io.FileOutputStream.openAppend(Native Method)
        java.io.FileOutputStream.<init>(FileOutputStream.java:210)
        org.apache.spark.storage.DiskBlockObjectWriter.open(BlockObjectWriter.scala:123)
        org.apache.spark.storage.DiskBlockObjectWriter.write(BlockObjectWriter.scala:192)
        org.apache.spark.shuffle.hash.HashShuffleWriter$$anonfun$write$1.apply(HashShuffleWriter.scala:67)
        org.apache.spark.shuffle.hash.HashShuffleWriter$$anonfun$write$1.apply(HashShuffleWriter.scala:65)
        scala.collection.Iterator$class.foreach(Iterator.scala:727)
        scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
        org.apache.spark.shuffle.hash.HashShuffleWriter.write(HashShuffleWriter.scala:65)
        org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68)
        org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
        org.apache.spark.scheduler.Task.run(Task.scala:54)
        org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:177)
        java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
        java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        java.lang.Thread.run(Thread.java:701)

I cleaned my /tmp directory,changed my local directory to another folder ; but nothing helped.
 
Can anyone say what could  be the reason .?

Thanks & Regards,
Meethu M