HEALTH CARE DEMO GOAL: Actively monitor ICU patients for risk indicators of Sepsis

Motivation

In 2011, the US spent $20.3 billion dollars on hospital care for patients with sepsis.

Sepsis is a potentially life-threatening complication of an infection. Sepsis occurs when chemicals released into the bloodstream to fight the infection trigger inflammatory responses throughout the body. This inflammation can trigger a cascade of changes that can damage multiple organ systems, causing them to fail. If sepsis progresses to septic shock, blood pressure drops dramatically, which may lead to death

Real Time Patient Monitoring for risk indicators of Sepsis with Hortonworks Data Flow

###COMPONENTS USED:

• NIFI
• STORM
• SOLR
• HBASE

SETUP

requires maven

sh install_mvn.sh
exit

log back in and check maven works

mvn -v

####setup kafka

cd /usr/hdp/current/kafka-broker/bin/
./kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic healthcaredemo 

####cleanup kafka q. First enable property in ambari->kafka->configs : delete.topic.enable=true

cd /usr/hdp/current/kafka-broker/bin/
./kafka-topics.sh --zookeeper localhost:2181 --delete --topic healthcaredemo

####check the kafka q

/usr/hdp/current/kafka-broker/bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic healthcaredemo --from-beginning

####storm

mkdir -p /opt/HealthCareDemo/
cp {GIT_DIRECTORY}/HealthCareDemoStorm/src/main/resources/healthcare_event_topology.properties /opt/HealthCareDemo/
storm jar target/HealthCareDemo-1.0-SNAPSHOT.jar com.hortonworks.se.healthcare.storm.PatientTopology /opt/HealthCareDemo/healthcare_event_topology.properties

####Kill Healthcare Storm Topology

storm kill healthcare-event-processor

####HBASE

[root@sandbox ~]$ su hbase
[hbase@sandbox root]$ hbase shell
hbase(main):001:0> create 'patient_events', 'events'    
hbase(main):002:0> create 'patient_danger_events', 'count'    
hbase(main):003:0> list    
hbase(main):004:0> exit 

####producer simulate

[root@sandbox HealthCareDemoStorm]# java -cp target/HealthCareDemo-1.0-SNAPSHOT.jar com.hortonworks.se.healthcare.producer.PatientDataProducer sandbox.hortonworks.com:6667 sandbox.hortonworks.com:2181

hbase bolt requires core-site.xml, hdfs-site.xml and hbase-site.xml on storm's classpath or in src/main/resources

solr

wget http://apache.mirror1.spango.com/lucene/solr/5.2.1/solr-5.2.1.tg

root@sandbox ~]# sh /root/solr-5.2.1/bin/solr start

Started Solr server on port 8983 (pid=21554). Happy searching!

[root@sandbox ~]# sh /root/solr-5.2.1/bin/solr create -c healthcare -d /root/solr-5.2.1/server/solr/configsets/data_driven_schema_configs/conf -n healthcare

Setup new core instance directory:
/root/solr-5.2.1/server/solr/healthcare

Creating new core 'healthcare' using command:
http://localhost:8983/solr/admin/cores?action=CREATE&name=healthcare&instanceDir=healthcare

####BANANA unzip banana-release.zip mv banana-release banana cp -R banana /root/solr-5.2.1/server/solr-webapp/

TO DELETE SOLR INDEX

curl "http://localhost:8983/solr/admin/cores?action=UNLOAD&core=healthcare&deleteIndex=true"