How to Run

Note: A pre-req is Pyro4 installed in any standard Linux machine

1. 2 Different Pyro Nameserver needs to be up for Replication

2. Process should be registered

3. Start the process with specific test cases

4. Start the name server using

pyro4-ns -p 9090

In a diff terminal/machine:

pyro4-ns -p 9091

Or you can use a port of your choice on any machine of your choice. Just make sure to mention it in the src/config.py config file The variables to edit are : serverAddress1 , serverPort1 , serverAddress2 , serverPort2

2. Now, run the registerProcesses.py to register all the processes and enter the number of processes to test load-balancing

Note: All the output will also come in this terminal/machine Note: This is only for load-balancing testing - for proper function all 6 processes need to be registered.

cd src python registerProcesses.py Input no. of devices to be registered (1-6): 6

3. In a diff terminal/machine: use the run.py file to start the process...

cd src python run.py

Note: some threads run as daemon in background, so when all events done use Ctrl+C to exit the registerProcess terminal

Configure HeartBeat Duration and Cache Size

As mentioned in req, we have made the cache size and the heartbeat duration configurable. Again, the config file is src/config.py The related values are:

For Cache Size : cacheSize

For HeartBeat Duration : hbPeriod

Switch between Test Cases

To switch between test cases, simply comment out 2 of the lines and leave one remaining in the run.py file.

The description and expected outputs are provided in test/output.txt

Database Structure

2 Database files are present both are Consistency ensured:

./database - logs all the events according the timestamps, used in ordering events by fetchinf last timestamped event

./state_database - has rows corresponding the each device whose state is of interest, used for recording current state of each device

Running on Diff Machines

The code is tested and able to run on multiple machines. The object of interest is the pyro Name Server

Set the host-address and port number of the Pyro Name Server Process in src/config.py using the serverAddress1, serverPort1, serverAddress2, serverPort2 attributes