Wooter

Parallel & Distributed Systems

Semester Long Design Project: Due May 1st, 2015

Programmer: Robert Ryszewski

---

Objective: To design a low-level website in stages that will ultimately be multi-threaded, networked, and replicated.

Overview:

• Stage 0: HTML Mock-up
• Stage 1: PHP Back-end & File Handling (No databases or SQL)
• Stage 2: Networked Back-end Server (PHP only client-facing)
• Stage 3: Multi-threaded Back-end Server
• Stage 4: Replicated Back-end Server

Documentation:

• Functions for each module are extensively documented
• Notes on multithreading and replication provided in separate README files

Goals for Future Improvement :

• Make use of separate compilation for the functions in each module
• Offload the testing code into a separate module of its own
  • Improve rigor of testing code in general
• Further improve overall robustness/error handling/worst case scenarios & race conditions
• Allow for a non-fixed # of RMs, to better represent arbitrary IP addresses of RMs
  • Do so by connecting to primary, and telling it and all known RMs to update their lists
  • Would need to store pairs of connection file descriptors with IP addresses
• Replace the current form of syncing the RM with the primary (calling "cp" on the local files) with a network-appropriate solution ("scp", a custom program, or an expansion to the .cpp).

Quick Start Instructions :

• 1. Pull repo into /var/www/html
• 2. Run make clean, make, to delete existing user accounts and to compile executable
• 3. Run "0_follow_gen.php" (by terminal or by web browsing to localhost/0_follow_gen.php)
• 4. User list is now populated. Run "0_woot_gen.php" to generate woots for them all
• 5. Login as any test user (username:password pairs defined in 0_follow_gen.php) and explore.