72 Hours Stability Test Plan of apex-pdp

Owned by Ram Krishna Verma
Last updated: Oct 24, 2018
4 min read

Introduction

The 72 hour Stability Test for apex-pdp has the goal of introducing a steady flow of transactions initiated from a test client server running JMeter. The pdp is configured to start a rest server inside it and take input from rest clients (JMeter) and send back output to the rest clients (JMeter).

The input events will be submitted through rest interface of apex-pdp and the results are verified using the rest responses coming out from apex-pdp.

The test will be performed in a multi-threaded environment where 20 threads running in JMeter will keep sending events to apex-pdp in every 500 milliseconds 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 apex pdp & other one for running JMeter to simulate steady flow of transactions.

OpenStack environment details

Version: Mitaka

apex-pdp VM details

OS:Ubuntu 16.04.5 LTS

CPU: 2 core

RAM: 3 GB

HardDisk: 40 GB

Docker Version: 18.06.1-ce, build e68fc7a

Java: openjdk version "1.8.0_181"

JMeter VM details

OS: Ubuntu 16.04.3 LTS

CPU: 2 core

RAM: 3 GB

HardDisk: 40 GB

Java: openjdk version "1.8.0_181"

JMeter: 5.0

Install JMeter in virtual machine

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 & 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

  1. Make the etc/hosts entries

    echo $(hostname -I | cut -d\  -f1) $(hostname) | sudo tee -a /etc/hosts

  2. Make the DNS entries

    echo "nameserver <PrimaryDNSIPIP>" >> /etc/resolvconf/resolv.conf.d/head
echo "nameserver <SecondaryDNSIP>" >> /etc/resolvconf/resolv.conf.d/head
resolvconf -u

  3. Update the ubuntu software installer

    apt-get update

  4. 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

  5. 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

  6. Change the permissions of the Docker socket file

    chmod 777 /var/run/docker.sock

  7. Check the status of the Docker service and ensure it is running correctly

    service docker status
docker ps

Install apex-pdp

  1. 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

  1. Right click on "Remote" in the left panel of the screen and select "Add Remote Host..."

  2. Enter the IP address of apex-pdp docker container.

  3. Right click on IP address, select "Add jstatd Connection..."
  4. In "jstatd Connections" tab, enter port 1111 and click OK.
  5. Right click on IP address, select "Add JMX Connection..."
  6. Enter the apex-pdp docker container IP Address (from step 2) <IP address>:9991 ( for example - 172.18.0.7:9991) and click OK.
  7. 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.

    NameDescriptionDefault Value
    waitWait time after each request (in milliseconds)500
    threadsNumber of threads to run test cases in parallel.20
    threadsTimeOutInMsSynchronization timer for threads running in parallel (in milliseconds).5000

             

Screenshot of apex-pdp stability test plan