Distributed Systems

The basic concepts of this course are: concurrency; interprocess communication; middleware; RPC; distributed file systems; distributed applications; fault tolerance; web services;

Content:

1. Introduction
- Basic concepts
- Interconnection networks
- Advantages of distributed systems
- Distributed computing paradigms
- Design of distributed systems

2. Process communication and synchronization
- Communication mechanisms in shared memory systems
- Communication mechanisms in distributed memory systems
- POSIX services
- Threads in Java

3. Message passing and client-server applications
- Communication model using message passing
- Design aspects
- POSIX queue messages
- Client-server applications
- Design of concurrent servers

4. Communication using sockets
- Communication model with sockets
- POSIX sockets API
- Java sockets API
- Design guide of client-servers applications using sockets

5. Remote procedure call
- RPC behavior
- Interface definition language
- Marshaling and message transfer
- ONC-RPC
-Remote method invocation in JAVA (RMI)

6. Web services
- HTTP protocol
- SOAP
- Development of web services with JAX-WS
- Development of web services with gSOAP

7. Distributed services
- Name services
- Synchronization in distributed systems
- Physical and logical clocks
- Distributed mutual exclusion
- Algorithms of election
- Multicast

8. Distributed storage systems
- Distributed file systems structure
- File and directory services
- Implementation of distributed file systems
- Example: NFS
- Shared disks file systems
- Parallel file systems
- Storage area networks

9. Fault tolerant in distributed systems
- Fault tolerant concepts
- Software fault tolerance
- Fault detectors
- Replication
- Protocols of consensus