CNV - 2018/2019

Cloud Computing & Virtualization project - HillClimbing@Cloud

Requirements

Install the following tools:

• Maven 3.x.x
• Java Development Kit 7 (JDK 7)

Structure and organization

The project is organized in 3 modules:

• databaselib, a library that contains code to interact with DynamoDB.
• loadbalancer, which contains the code to run in the Load Balancer server.
• web-server, which contains the code to run in the Web server.

The first two modules use maven, and the last already has all the files compiled.

How to compile

Execute the following command:

./create_archives.sh

How to run

WebServer

Place the .dat and .png files from the dataset in web-server/datasets.

Run create_archives.sh script.

Create an AWS ec2 server instance, with port 8000 open for TCP, and java 7 installed. Download the AWS Java SDK , and unzip it in the home directory.

Copy the web-server.zip archive to the instance, and unzip it:

scp -i CNV-AWS.pem ./web-server.zip ec2-user@<IP_ADDRESS>:~

Append the following, to etc/rc.d/rc.local (change the aws package version, if needed):

export CLASSPATH="$CLASSPATH:/home/ec2-user/web-server/pt/ulisboa/tecnico/cnv/server:/home/ec2-user/web-server:/home/ec2-user/db-lib:/home/ec2-user/aws-java-sdk-1.11.546/lib/aws-java-sdk-1.11.546.jar:/home/ec2-user/aws-java-sdk-1.11.546/third-party/lib/*:."
export _JAVA_OPTIONS="-XX:-UseSplitVerifier "$_JAVA_OPTIONS
cd /home/ec2-user/web-server
java WebServer

Create the ~/.aws folder and put the following files in it:

• webserver.properties (example)

  server-region=us-east-1
  

• credentials (example)

  [default]
  
  aws_access_key_id=<ACCESS_KEY>
  
  aws_secret_access_key=<SECRET_ACCESS_KEY>
  

Create an image of this instance.

LoadBalancer

Run create_archives.sh script (if you haven't already).

Create an AWS ec2 server instance, with port 8080 open for TCP, and java 7 installed. Download the AWS Java SDK , and unzip it in the home directory.

Copy the lb-bin.zip archive to the instance, and unzip it:

scp -i CNV-AWS.pem ./lb-bin.zip ec2-user@<IP_ADDRESS>:~

Run the following (change the aws package version, if needed):

export CLASSPATH=$CLASSPATH:/home/ec2-user/db-lib:/home/ec2-user/aws-java-sdk-1.11.538/lib/aws-java-sdk-1.11.538.jar:/home/ec2-user/aws-java-sdk-1.11.538/third-party/lib/*:.

Create the ~/.aws folder and put the following files in it:

• webserver.properties (example)

  server-region=us-east-1
  image-id=ami-0e38c8854738d9646
  key-name=CNV-lab-AWS
  sec-group=CNV-ssh+http
  instace-type=t2.micro
  subnet-id=subnet-ac760882
  

• credentials (example)

  [default]
  
  aws_access_key_id=<ACCESS_KEY>
  
  aws_secret_access_key=<SECRET_ACCESS_KEY>
  

To startup the LoadBalancer run the following command inside lb-bin/:

java pt.ulisboa.tecnico.cnv.loadbalancer.LoadBalancerApplication