mganta/sprue

An example to run drools with spark. 

1. This tries to run the logic at http://www.mdcalc.com/sirs-sepsis-and-septic-shock-criteria/

2. The relevant drools decision table file is in src/main/resources/sepsis.xls

3. The driver program takes three parameters

   	a. zookeeper info
   	b. rules xls file
   	c. open tsdb url
   
   	Comment out line 94 in SepsisStream.scala, if you do not have opentsdb setup
   	Comment out lines 69 & 80 if you do not have HBase setup
   	Toggle lines 40 & 41 in SepsisStream.scala to run in local mode

4. The program generates sample data using a queueRDD



To Run (This has been tested on a CDH5.4 cluster):

1. mvn clean package

2. Create the hbase table. Sample script in src/main/resource/create_hbase_table.rb

3. Install opentsdb (http://opentsdb.net/docs/build/html/installation.html)

4. Start spark streaming using

	spark-submit --driver-java-options 
		'-Dspark.executor.extraClassPath=/opt/cloudera/parcels/CDH/lib/hbase/lib/htrace-core-3.1.0-incubating.jar' 
		--master yarn-client 
		--files sepsis.xls 
		--class com.cloudera.sprue.SepsisStream 
		/path_to/sprue-0.0.1-SNAPSHOT-jar-with-dependencies.jar 
		sepsis.xls zookeeper.host.domain:2181 
		http://opentsdb.host.domain:4242/api/put

	The spark.executor.extraClassPath option is a classpath workaround for spark on hbase on cdh5.4
	The files option uploads the xls file to the spark executors