question Re: Configuring/Adding workers in Spark in Archives of Support Questions (Read Only)

Configuring/Adding workers in Spark

amoriam — Fri, 16 Sep 2022 09:25:58 GMT

Hi All,

I have a cloudera cdh5.3 quickstart running on a VM. I am having problems with running Spaark. I have gone thruogh those steps http://www.cloudera.com/content/cloudera/en/documentation/core/latest/topics/cdh_ig_spark_configure.html and run the word exapmle and it worked. But when I go to the master (quickstart.cloudera:18080) it has no workers there the cores=0, memory=0... when I go to (quickstart.cloudera:18081) there is a worker. My question is how to add workers? And what should I enter in export STANDALONE_SPARK_MASTER_HOST?

This is the spark-env.sh:

### Change the following to specify a real cluster's Master host
###
export STANDALONE_SPARK_MASTER_HOST=worker-20150402201049-10.0.2.15-7078

export SPARK_MASTER_IP=$STANDALONE_SPARK_MASTER_HOST

### Let's run everything with JVM runtime, instead of Scala
export SPARK_LAUNCH_WITH_SCALA=0
export SPARK_LIBRARY_PATH=${SPARK_HOME}/lib
export SCALA_LIBRARY_PATH=${SPARK_HOME}/lib
export SPARK_MASTER_WEBUI_PORT=18080
export SPARK_MASTER_PORT=7077
export SPARK_WORKER_PORT=7078
export SPARK_WORKER_WEBUI_PORT=18081
export SPARK_WORKER_DIR=/var/run/spark/work
export SPARK_LOG_DIR=/var/log/spark
export SPARK_PID_DIR='/var/run/spark/'

if [ -n "$HADOOP_HOME" ]; then
export LD_LIBRARY_PATH=:/lib/native
fi

export HADOOP_CONF_DIR=${HADOOP_CONF_DIR:-etc/hadoop/conf}

### Comment above 2 lines and uncomment the following if
### you want to run with scala version, that is included with the package
#export SCALA_HOME=${SCALA_HOME:-/usr/lib/spark/scala}
#export PATH=$PATH:$SCALA_HOME/bin

Thank you,

Amr

Re: Configuring/Adding workers in Spark

srowen — Fri, 03 Apr 2015 14:06:20 GMT

Are you trying to manually set up standalone Master / Workers? You should use CM to do this.

Re: Configuring/Adding workers in Spark

amoriam — Fri, 03 Apr 2015 14:10:56 GMT

Yes, I am using the cluodera quick start which runs on CentOS to run Spark on Standalone mode.

Re: Configuring/Adding workers in Spark

amoriam — Fri, 03 Apr 2015 19:25:51 GMT

Is there anyway to do that on a single michine running the cloudera quickstart? OR maybe its called adding executors on the same machine I'm new to Spark so not sure what its acually called.

Like this tutorial adding workers on the same machine but on CentOS running CDH5.3 quickstart: http://mbonaci.github.io/mbo-spark/

Thank you,

Amr

Re: Configuring/Adding workers in Spark

amoriam — Mon, 06 Apr 2015 13:57:41 GMT

I got the answer:

"Add export STANDALONE_SPARK_MASTER_HOST=10.0.2.15 to your spark-env.sh so both master and worker agree on the same host address".