Hi All,
I am using R 3.1 and Spark 0.9 and installed SparkR successfully. Now when I
execute the "pi.R" example using spark master as local, then script executes
fine.
But when I try to execute same example using master as spark cluster master,
then in throws Rcript error.
Error :
java.io.IOException: Cannot run program "Rscript": java.io.IOException:
error=2, No such file or directory
at java.lang.ProcessBuilder.start(ProcessBuilder.java:475)
at edu.berkeley.cs.amplab.sparkr.RRDD.compute(RRDD.scala:113)
at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:241)
at org.apache.spark.rdd.RDD.iterator(RDD.scala:232)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:109)
at org.apache.spark.scheduler.Task.run(Task.scala:53)
at
org.apache.spark.executor.Executor$TaskRunner$$anonfun$run$1.apply$mcV$sp(Executor.scala:213)
at
org.apache.spark.deploy.SparkHadoopUtil$$anon$1.run(SparkHadoopUtil.scala:46)
at
org.apache.spark.deploy.SparkHadoopUtil$$anon$1.run(SparkHadoopUtil.scala:45)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:416)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
at
org.apache.spark.deploy.SparkHadoopUtil.runAsUser(SparkHadoopUtil.scala:45)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:178)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)
I have checked, Rscript is present in my system and I also exported it in
CLASSPATH and PATH variables. Script is given the permission 777 as there are
multiple users of the clusters.
$ which Rscript
/usr/local/bin/Rscript
$ type -a Rscript
Rscript is /usr/local/bin/Rscript
$ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/var/local/maven3/bin/:/var/local/ant/bin/:/usr/lib/jvm/java-6-openjdk:/usr/local/bin/Rscript
$ echo $CLASSPATH
:/usr/local/bin/Rscript
Also I am getting same error if I open R prompt and then execute the commands
one after another OR if I execute the script.
Please suggest
Thanks
Stuti Awasthi
::DISCLAIMER::
----------------------------------------------------------------------------------------------------------------------------------------------------
The contents of this e-mail and any attachment(s) are confidential and intended
for the named recipient(s) only.
E-mail transmission is not guaranteed to be secure or error-free as information
could be intercepted, corrupted,
lost, destroyed, arrive late or incomplete, or may contain viruses in
transmission. The e mail and its contents
(with or without referred errors) shall therefore not attach any liability on
the originator or HCL or its affiliates.
Views or opinions, if any, presented in this email are solely those of the
author and may not necessarily reflect the
views or opinions of HCL or its affiliates. Any form of reproduction,
dissemination, copying, disclosure, modification,
distribution and / or publication of this message without the prior written
consent of authorized representative of
HCL is strictly prohibited. If you have received this email in error please
delete it and notify the sender immediately.
Before opening any email and/or attachments, please check them for viruses and
other defects.
----------------------------------------------------------------------------------------------------------------------------------------------------
