Project - Distributed Content Searching

This repo contains complete design of the distributed P2P overlay-based system which contains a set of nodes that can search and share contents among each other.

Goals

Develop a simple overlay-based solution that allows a set of nodes to share contents (e.g., music files) among each other. Consider a set of nodes connected via some overlay topology. Each of the nodes has a set of files that it is willing to share with other nodes. Suppose node x is interested in a file f. x issues a search query to the overlay to locate a at least one node y containing that particular file. Once the node is identified, the file f can be exchanged between X and y.

After completing this project, you will have developed a solution to search and download contents in a distributed system. You will be able to:

• design, develop, and debug overlay-based applications such as a simple search engine to find contents in a distributed system
• use RPCs, web services, or REST APIs to develop distributed systems
• measure an analyze the performance of a distributed system

How to build

Execute the Below command inside the project home directory.

mavn clean install

This will build the project modules individually. The final runnable jar file packaging all the other submodule dependency jars will get created inside "P2PFileSharer/org.dc.p2p.fs.rest.service/target" directory.

How to Run

• copy the following files to a single directory. ex - node1

  1. P2PFileSharer/org.dc.p2p.fs.rest.service/target/org.dc.p2p.fs.rest.service-1.0.0.jar
  2. P2PFileSharer/org.dc.p2p.fs.rest.service/src/main/resources/application.properties
  3. P2PFileSharer/org.dc.p2p.fs.ui/src/main/resources/config.properties
  4. P2PFileSharer/org.dc.p2p.fs.ui/src/main/resources/FileNames.txt

• Give unique values for the following configuration in application.properties file.

  1. "server.port" - This is the REST API listener port. We need to provide different values per node if we are running in the same vm. ex- 5050, 5051

• Give unique values for the following configuration in config.properties file.

  1. "SERVER_PORT" - This is the UDP listener port of the node. We need to provide different values per node if we are running in the same vm. ex- 5001, 5002
  2. "REST_SERVICE_PORT" - Configure the same value as the "server.port" in application.properties file.
  3. "SERVER_NAME" - Unique name to identify the node. ex - server1, server2
  4. "BS_PORT" - Bootstrap server port. This will be unique to all nodes.
  5. "SO_TIMEOUT" - This is the UDP socket time out. The connection will be closed after waiting this amount of time for server response.
  6. "RETRY_LIMIT" - Retry count to connect with the BS server when re-registering.
  7. "FILE_STORAGE_DIR" - The temporary directory to store generated file in the server side. Need to provide a valid directory path. ex - ~/node1/tmp
  8. "FILE_DOWNLOAD_DIR" - The file download directory of the client. Need to provide a valid directory path. ex - ~/node1/downloads
  9. "FILE_NAME_LIST" - The file containing the list of file names that needs to randomly initialized at the server startup. Needs to provide the valid file path.

• Run the application using the following command.

  java -DpropFileLocation="~/path_to_config.properties_file/config.properties" -jar org.dc.p2p.fs.rest.service-1.0.0.jar