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Posted to issues@spark.apache.org by "Sandeep Pal (JIRA)" <ji...@apache.org> on 2015/10/06 02:22:26 UTC

[jira] [Created] (SPARK-10940) Too many open files Spark Shuffle

Sandeep Pal created SPARK-10940:
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             Summary: Too many open files Spark Shuffle
                 Key: SPARK-10940
                 URL: https://issues.apache.org/jira/browse/SPARK-10940
             Project: Spark
          Issue Type: Bug
          Components: Shuffle, SQL
    Affects Versions: 1.5.0
         Environment: 6 node standalone spark cluster with 1 master and 5 worker nodes on Centos 6.6 for all nodes. Each node has > 100 GB memory and 36 cores.
            Reporter: Sandeep Pal


Executing terasort by Spark-SQL on the data generated by teragen in hadoop. Data size generated is ~456 GB. 
Terasort passing with --total-executor-cores = 40, where failing for --total-executor-cores = 120. 
I have tried to increase the ulimit to 10k but the problem persists.
Below is the error message from one of the executor node:

java.io.FileNotFoundException: /tmp/spark-e15993e8-51a4-452a-8b86-da0169445065/executor-0c661152-3837-4711-bba2-2abf4fd15240/blockmgr-973aab72-feb8-4c60-ba3d-1b2ee27a1cc2/3f/temp_shuffle_7741538d-3ccf-4566-869f-265655ca9c90 (Too many open files)



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