Computer Science 244b: Spring 2014
Announcements | Overview | Details | Materials | Assignments | Exams | Policies
This course explores the issues to address in designing and implementing distributed systems with a particular emphasis on how to deal with the shared state between separate processes within such a system. Topics include: distributed shared memory, object-oriented structuring of distributed systems, real/logical/virtual time, directories and naming, distributed file systems, authentication and security, distributed process scheduling, presentation protocols and communication support for distributed systems. The material complements network-layer courses by building on the transport layer to provide higher-level applications and services.
There may be a guest lecture or two that depart from this pattern and will be noted as they arise.
The chapters also list research papers as references, meaning they are optional reading and not required in any way to do well in the course. Students should be able to access these papers online using Stanford's site license for the ACM digital library from any computer with a Stanford IP address. If you have difficulties accessing the papers online, please contact the CA.
Assignment 1: Mazewar
Mazewar Review Session Slides are here.
Assignment 2: Replicated Filesystem
Replicated Filesystem Review Session Slides are here
You may work on the assignments on any Unix machine with a modern C/C++ compiler and debugger. But since we will evaluate your assignment on one of the Linux machines in the myth cluster in the Gates building, we strongly recommend that you develop and test your code on one of these machines.
You may find the Unix command
ssh -X myth.stanford.edu to be useful at your Linux or OS X prompt.
The midterm is scheduled for May 1, 2014 7:30-8:45pm. Location: 200-205
Off-campus students are encouraged to come onto campus for the exams if at all feasible. If necessary, remote SCPD students may take the exams at their company sites with a proctor; Stanford SCPD is responsible for distributing exams to proctors as well as returning the completed exams.
These sample exams should aid you in your studying: Prior Exams
You are allowed 3 late day credits for the quarter which you may use as needed to accommodate your schedule. If an assignment has multiple parts, each part may use late day. Otherwise, late assignments may be penalized 10% for each 24-hour period or fraction thereof (including weekends) that they are late. Beyond 3 days, they are graded/credited only at the sole discretion of the TA. Please try to make prior arrangements with the TA or instructor if you anticipate any problem with this policy.
Since lectures are made available via Stanford Online on the same day they are taped, SCPD students are expected to follow the same schedule as the rest of the class. This means that the above late assignment policy applies to SCPD students as well; exceptions are not granted due to students' work obligations.
It should go without saying, but because computer science project courses have a long and ugly history of honor code violations, we will say it anyway:
The Stanford honor code applies to all work done in this course. All work you submit must be your own. Suspected violations of the honor code will be investigated and referred to the Office of Judicial Affairs.
Honor code violations are a serious matter, and being found guilty of one can ruin your academic career. Review the honor code. If you ever find yourself uncertain about how it applies to your situation, ask. Asking what you might think is a silly question is better than risking your career. The instructor and CAs try to help students who get behind or encounter unexpected difficulties. There is more flexibility here than in dealing with violations of the honor code.
No incompletes are given in this course, so make sure you determine before the drop deadline whether you can complete it satisfactorily.