Operating Systems Computer networks

The main objective of the course is to describe the main concepts needed for designing and developing distributed systems and applications. 1. Generic competences: - Capacity of analysis and synthesis (PO a, b, c, e) - Capacity of organization and scheduling (PO c, d) - Problem solving (PO a, b, c, g) - Capacity to apply theoretical concepts (PO a, c) 2. Specific competences: a. Cognitive (PO a,c e,j) - Concepts of a distributed system - Main hardware platforms used in distributed systems - Understanding the concept of middleware and the services provided by a middleware - Techniques for developing distributed applications - Storage systems used in distributed systems - Techniques for developing fault tolerant distributed systems - Knowledge and application of features, functionality and structure of Distributed Systems, Computer Networks and Internet-based design and implement distributed applications (CECRI11)     - Ability to design and implement software and communication systems (CEIC4) b. Procedimental/Instrumental (PO a, b, c, g, j, k) - Designing and developing a distributed system and a distributed application. - Designing and developing distributed applications using the main TCP/IP services, RPC or services provided by middlewares. - Using tools (programming languages and operating systems) appropriates for developing distributed systems. - Designing and developing distributed applications using middleware services and remote procedure calls. - Evaluating the performance of a distributed application - Researching and looking for solutions to new problems related to distributed systems. c. Attitude (PO: c, e) - Creativity - Critical vision of current distributed systems - Motivation - Interest for acquiring new knowledge and information

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

The teaching methodology includes: 1. Theoretical lectures 1 ECTS (PO a, b, c, e, j) - Distributed systems concepts - Basic text books will be also recommended 2. Projects 1.5 ECTS (PO a, b, c, d, e, g, k) - Several projects are made along the course applying the concepts shown in theoretical lectures. Partial teacher support in computer labs. - Students have to analyze the requirements and provide a working solution - The projects are developed in team of 2 students, in order to promote the collaborative work 3. Problem solving with the teacher 1 ECTS (PO a, c, e) - By solving exercises and case of studies in a participatory way. 4. Student work 2 ECTS. (PO a, c, e, g, k) - Self-study to understand the theoretical concepts - Homework for solving proposed exercises - Students must to understand and present in public the main aspects obtained in the analysis of a basic paper written in English. 5. Exams 0.5 ECTS (PO a, c, e, g) - Midterm and final exam