How to use Spark on Grid5000

How to use Apache Spark on Grid5000

1 : Install hadoop_g5k https://github.com/mliroz/hadoop_g5k/wiki

Create file .bash_profile if it doesn't exist at /home/yourUserName/.bash_profile

Add the following lines :

   PATH="/home/yourUserName/.local/bin:$PATH”
   export PATH

Initialize cluster

Reserve nodes

https://www.grid5000.fr/mediawiki/index.php/Getting_Started

Some examples

   oarsub -t allow_classic_ssh -l nodes=10,walltime=2 -r '2015-06-14 19:30:00'

   oarsub -p "cluster='paranoia'" -t allow_classic_ssh -l nodes=8,walltime=12 -r '2015-07-09 21:14:01'

   oarsub -I -p "cluster='paranoia'" -t allow_classic_ssh -l nodes=8,walltime=12

Take a reservation

   oarsub -C job_ID

Take nodes directly

   oarsub -I -t allow_classic_ssh -l nodes=6,walltime=2

Known issue

It is possible that trying to run the hg5k and spark_g5k scripts while in interactive reservation mode raises a "DistributionNotFound" python error. In this case, you should try adding the keywork "deploy" to your reservation command. for example:

   oarsub -I -t allow_classic_ssh -l nodes=2,walltime=0:30 deploy

Cluster initialization

https://github.com/mliroz/hadoop_g5k/wiki/spark_g5k

Prerequisite : Depending on which cluster you are, you need to have the compressed versions of Hadoop and Spark in one of your directory, here public.

   hg5k --create $OAR_NODEFILE --version 2

   hg5k --bootstrap /home/yourUserName/public/hadoop-2.6.0.tar.gz

   hg5k --initialize feeling_lucky --start

   spark_g5k --create YARN --hid 1

   spark_g5k --bootstrap /home/yourUserName/public/spark-1.6.0-bin-hadoop2.6.tgz

   spark_g5k --initialize feeling_lucky --start

Put files on HDFS

   hg5k --putindfs myfile.csv /myfile.csv

Execute jar file

   spark_g5k --scala_job myprgm.jar
   spark_g5k --scala_job --exec_params executor-memory=1g driver-memory=1g num-executors=2 executor-cores=3 myprgm.jar

Find files on HDFS

   hg5k --state files

Get result file named res

   hg5k --getfromdfs /res .

Destroy properly cluster

   spark_g5k --delete
   hg5k --delete

Accesory List of resources of your reservation

   uniq $OAR_NODEFILE