Introduction

The 72 hour Stability Test for PAP has the goal of introducing a steady flow of transactions initiated from a test client server running JMeter for the duration of 72 hours.

Setup details

The stability test is performed on VM's running in OpenStack cloud environment.

There are 2 seperate VM's, one for running PAP & other one for running JMeter to simulate steady flow of transactions.

All the dependencies like dmaap simulator, pdp simulator & policy/api component are installed in the VM having JMeter.

OpenStack environment details

Version: Mitaka

PAP VM details

OS:Ubuntu 16.04 LTS

CPU: 4 core

RAM: 4 GB

HardDisk: 40 GB

Docker Version: 18.09.6

Java: openjdk version "1.8.0_212"

JMeter VM details

OS: Ubuntu 16.04 LTS

CPU: 4 core

RAM: 4 GB

HardDisk: 40 GB

Docker Version: 18.09.6

Java: openjdk version "1.8.0_212"

JMeter: 5.1.1

Install JMeter in virtual machine

Update the ubuntu software installer

apt-get update

Check & Install Java

apt-get install -y openjdk-8-jdk

java -version

Download & install JMeter

mkdir jMeter

cd jMeter

wget http://mirrors.whoishostingthis.com/apache//jmeter/binaries/apache-jmeter-5.0.zip

unzip apache-jmeter-5.0.zip

Run JMeter

/home/ubuntu/jMeter/apache-jmeter-5.0/bin/jmeter

The above command will load the JMeter UI. Then navigate to File → Open → Browse and select the test plan jmx file to open. The jmx file is present in the apex-pdp git repository - jmx file path

Install apex-pdp in virtual machine

We will be running apex-pdp as docker container. So we need to first install docker and then create the container hosting apex-pdp by pulling the image from ONAP repository.

Docker Installation

Make the etc/hosts entries
echo $(hostname -I | cut -d\ -f1) $(hostname) | sudo tee -a /etc/hosts
Make the DNS entries
echo "nameserver <PrimaryDNSIPIP>" >> /etc/resolvconf/resolv.conf.d/head
echo "nameserver <SecondaryDNSIP>" >> /etc/resolvconf/resolv.conf.d/head
resolvconf -u
Update the ubuntu software installer
apt-get update
Check and Install Java
apt-get install -y openjdk-8-jdk
java -version
Ensure that the Java version that is executing is OpenJDK version 8

Check and install docker

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
apt-get update
apt-cache policy docker-ce
apt-get install -y docker-ce
systemctl status docker
docker ps

Change the permissions of the Docker socket file
chmod 777 /var/run/docker.sock
Check the status of the Docker service and ensure it is running correctly
service docker status
docker ps

Install apex-pdp

Run the below command to create the container hosting apex-pdp by pulling the image from ONAP repository.

docker run -d --name apex -p 12561:12561 -p 23324:23324 -it nexus3.onap.org:10001/onap/policy-apex-pdp:2.0-SNAPSHOT-latest /bin/bash -c "/opt/app/policy/apex-pdp/bin/apexEngine.sh -c /opt/app/policy/apex-pdp/examples/config/SampleDomain/RESTServerJsonEvent.json"
docker ps

Note: If you observe that requests from JMeter client is failing due to timeout, then modify the "RESTServerJsonEvent.json" mentioned in the above command and increase the "synchronousTimeout" property as per needed.

Install & Configure VisualVM

VisualVM needs to be installed in the virtual machine having apex-pdp. It will be used to monitor CPU, Memory, GC for apex-pdp while stability test is running.

Install visualVM

sudo apt-get install visualvm

Login to docker container (using root)

docker exec -u 0 -it apex /bin/bash

Run few commands to configure permissions

cd /usr/lib/jvm/java-8-openjdk-amd64/bin/

touch visualvm.policy

vi visualvm.policy

Add the following in visualvm.policy

grant codebase "file:/usr/lib/jvm/java-8-openjdk-amd64/lib/tools.jar" {
permission java.security.AllPermission;
};

chmod 777 visualvm.policy

exit

Login to docker container (using normal user)

docker exec -it apex /bin/bash

Run following commands to start jstatd using port 1111

cd /usr/lib/jvm/java-8-openjdk-amd64/bin/

./jstatd -p 1111 -J-Djava.security.policy=visualvm.policy &

exit

Login to VM using graphical interface in separate terminal window.

ssh -X <user>@<VM-IP-ADDRESS>

Open visualVM

visualvm &

Connect to jstatd & remote apex-pdp JVM

Right click on "Remote" in the left panel of the screen and select "Add Remote Host..."
Enter the IP address of apex-pdp docker container.
Right click on IP address, select "Add jstatd Connection..."
In "jstatd Connections" tab, enter port 1111 and click OK.
Right click on IP address, select "Add JMX Connection..."
Enter the apex-pdp docker container IP Address (from step 2) <IP address>:9991 ( for example - 172.18.0.7:9991) and click OK.
Double click on the newly added nodes under "Remote" to start monitoring CPU, Memory & GC.

Sample Screenshot of visualVM

Test Plan

The 72 hours stability test will run the following steps in 20 threaded loop.

Send Input Event - sends an input message to rest interface of apex-pdp.
Assert Response Code - assert the response code coming from apex-pdp.
Assert Response Message - assert the response message coming from apex-pdp.

The following steps can be used to configure the parameters of test plan.

HTTP Header Manager - used to store headers which will be used for making HTTP requests.
HTTP Request Defaults - used to store HTTP request details like Server Name or IP, Port, Protocol etc.

User Defined Variables - used to store following user defined parameters.

Name	Description	Default Value
Name	Description	Default Value
wait	Wait time after each request (in milliseconds)	500
threads	Number of threads to run test cases in parallel.	20
threadsTimeOutInMs	Synchronization timer for threads running in parallel (in milliseconds).	5000

Screenshot of apex-pdp stability test plan

72 Hours Stability Test Plan of PAP