[jira] [Created] (SPARK-7791) Set user for executors in standalone-mode

["Tomasz Früboes (JIRA)" <ji...@apache.org>]

Tomasz Früboes created SPARK-7791:
-------------------------------------

             Summary: Set user for executors in standalone-mode
                 Key: SPARK-7791
                 URL: https://issues.apache.org/jira/browse/SPARK-7791
             Project: Spark
          Issue Type: New Feature
          Components: Spark Core
            Reporter: Tomasz Früboes


I'm opening this following a discussion in https://www.mail-archive.com/user@spark.apache.org/msg28633.html

 Our setup was following. Spark (1.3.1, prebuilt for hadoop 2.6, also 2.4) was installed in the standalone mode and started manually from the root account. Everything worked properly apart of operations  such us

rdd.saveAsPickleFile(ofile)

which end with exception:

py4j.protocol.Py4JJavaError: An error occurred while calling o27.save.
: java.io.IOException: Failed to rename DeprecatedRawLocalFileStatus{path=file:/mnt/lustre/bigdata/med_home/tmp/test19EE/namesAndAges.parquet2/_temporary/0/task_201505191540_0009_r_000001/part-r-00002.parquet; isDirectory=false; length=534; replication=1; blocksize=33554432; modification_time=1432042832000; access_time=0; owner=; group=; permission=rw-rw-rw-; isSymlink=false} to file:/mnt/lustre/bigdata/med_home/tmp/test19EE/namesAndAges.parquet2/part-r-00002.parquet at org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter.mergePaths(FileOutputCommitter.java:346)

(files created in _temporary were owned by user root). It would be great if spark could set the user for the executor also in standalone mode. Setting SPARK_USER has no effect here.

BTW it may be a good idea to add some warning (e.g. during spark startup) that running from root account is not very healthy idea. E.g. mapping this function 

def test(x):
   f = open('/etc/testTMF.txt', 'w')
   return 0

on a rdd creates a file in /etc/ (surprisingly calls like f.Write("text") end with an exception)

Thanks,
  Tomasz




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