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matt-merman/SDCC
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The aim is to implement two election distributed algorithms (i.e.Chang and Roberts algorithm,Bully algorithm). Furthermore, the following services must be implemented:
- Register service;
- Heartbeat monitoring service;
- Logging information service;
To deploy the application should be usedDocker containers onEC2 instance.
For the local execution are requiredDocker andDocker Compose. Furthermore, arequirements.txt file has been defined to install all the python external libraries:
# to execute in SDCC/sdcc/pip install -r requirements.txtThe complete list of flags is:
$ python3 run.py -h usage: run.py [-h] [-v] [-d] [-a {ring,bully}] [-c CONFIG_FILE] Implementation of distributed election algorithms. Generic node. optional arguments: -h, --help show thishelp message andexit -v, --verbose increase output verbosity -d, --delay generate a random delay to forwarding messages -a {ring,bully}, --algorithm {ring,bully} ring by default -c CONFIG_FILE, --config_file CONFIG_FILE needed a config filein json formatThelocal_config.json (inSDCC/sdcc) file has been defined to manage all network settings (i.e., IP addresses, port numbers). To display the options set:
python3 run.py -h
Firstly you make running the register node:
# to execute in SDCC/sdcc/register. The -v flag provides a verbose execution (i.e., all messages received and sent are shown)python3 run.py -v -c ../local_config.jsonA single node can be executed as:
# to execute in SDCC/sdcc/node. Without the '-a bully' option node runs the ring-based alg.python3 run.py -v -a bully -c ../local_config.jsonTest execution can be handled as:
# to execute in SDCC/sdccsudopython3run_tests.py
Ansible service is used to automate the Docker installation and to copy the application code.
# To check the ec2 instance (optional)ansible -i hosts.ini -m ping all# To execute ansible in SDCC/sdcc/ansibleansible-playbook -v -i hosts.ini deploy.yaml# Connect to the EC2 instancessh -i"SDCC_key.pem" ubuntu@ip_instance# To execute the whole applicationsudo docker-compose up
Please seereport for more details.
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Implementation of distributed election algorithms.