Added executor configuration parameters to the Makefile and README.md

Signed-off-by: Manuel Carmona <manu.carmona90@gmail.com>

Author: mcarmonaa

Makefile

@@ -13,6 +13,9 @@ SBT = ./sbt ++$(SCALA_VERSION)
 APP_NAME = "QuerySetApp"
 APP_MAIN_CLASS = "tech.sourced.queryset.Main"
 SPARK_MASTER ?= "local[*]"
+NUM_EXECUTORS ?= 1
+EXECUTOR_MEM ?= 1G
+EXECUTORS_CORES ?= 4
 UBER_JAR = "target/scala-2.11/queryset-0.1.0.jar"
 REPOS_PATH ?= "src/main/resources/siva-files"
 REPOS_FORMAT ?= "siva"
@@ -27,6 +30,9 @@ run:
 	--name $(APP_NAME) \
 	--class $(APP_MAIN_CLASS) \
 	--master $(SPARK_MASTER) \
+	--num-executors $(NUM_EXECUTORS) \
+	--executor-memory $(EXECUTOR_MEM) \
+	--total-executor-cores $(EXECUTORS_CORES) \
 	$(UBER_JAR) $(APP_ARGS)
 
 build: clean

README.md

@@ -9,16 +9,21 @@ $SPARK_HOME/bin/spark-submit \
     --name "QuerySetApp" \
     --class "tech.sourced.queryset.Main" \
     --master $SPARK_MASTER \
+    --num-executors $NUM_EXECUTORS \
+    --executor-memory $EXECUTOR_MEM  \
+    --total-executor-cores $EXECUTOR_CORES \
     path/to/queryset-0.1.0.jar $REPOS_PATH $REPOS_FORMAT
 ```
 
 - `SPARK_HOME` environment variable must point to the directory where `Spark` was downloaded (e.g. `/usr/local/spark`)
 
 - `SPARK_MASTER` environment variable must point to the [master URL](https://spark.apache.org/docs/latest/submitting-applications.html#master-urls) for the cluster (e.g. `spark://p-spark-master:7077`)
 
+- `NUM_EXECUTORS`, `EXECUTOR_MEM`, `EXECUTOR_CORES`: [Executor configuration parameters](https://spark.apache.org/docs/latest/submitting-applications.html) (eg: `3`, `4G`, `64`).
+
 - `REPOS_PATH` must point to the directory which contains the repositories.
 
-- `REPOS_FORMAT` must specify the repositories' format (e.g. `siva`)
+- `REPOS_FORMAT` must specify the repositories' format (e.g. `siva`, `standard`)
 
 #### Development
 - First you should set the `Spark` directory: