Programming Distributed Systems
Instructor: Dr. Annette Bieniusa
Lecture: Monday, 10:00 - 11:30, Room 48-453
Exercises: Thursday, 15:30 - 17:00, Room 42-110 (first session on April 12th)
The lecture and course material will be in English.
Please register via mail to Peter Zeller (subject: “Registration Progdist”).
- Good programming knowledge, including usage of code repositories (git)
As this is a 4CP lecture, you will spend on average around 120 hours on the lecture and the exercises, plus exam preparation. If you do not have much experience with programming systems of medium size, you need to plan to spend more time on the practical exercises! If you lack some of the theoretical prerequisites (definition of formal languages, finite-state machines), you should also incorporate this into your planning.
- Oral exams on August 07, August 16/17, September 21
- Please register with our secretary Judith Stengel for a time slot (and ofc with the examination office)!
You will be able to
- explain the challenges regarding time and faults in a distributed system
- provide formal definitions for time models, fault models and consistency models
- comprehend and develop models of some distributed system in a process calculus
- describe the algorithms for essential abstractions in programming distributed systems
- implement basic abstractions for distributed programming
- explain the virtues and limitations of major distributed programming paradigms
Topics of the Lecture
- Basic primitives in programming distributed systems
- Consistent snapshots
- Distributed state machine replication
- Theoretical foundation
- Failure modes
- Time in Distributed systems
- Process calculi (e.g. CSP, CCS, pi calculus, TLA)
- Consistency models
- Programming paradigms for Distributed Systems
- Futures and promises
- Message passing and Actors
- Streaming / Data-Flow
To solve the practical exercises, you need to install some software: Required software for the exercises
Please submit your solution to the practical exercises via your Git repository (which you get after registration). If you want feedback on the theoretical exercises, please send your solution to Peter Zeller.
Solving the exercise sheets is not mandatory, but highly recommended. In the second half of the semester, you will have to implement a bigger project in Erlang. Successfully implementing this project is a requirement for being admitted to the exams.
|Exercise 1 (Hints)||ex1_tests.erl|
|Exercise 2 (Hints)||template (Update 24.04.: Added tests for vector clocks)|
|Exercise 3 (Hints)||template (Update 04.05.: Changes and instructions for Running on Windows; Update 09.05.: Added some test cases)|
|Exercise 4 (Hints)|
|Exercise 5 (Hints)||See also: Principles of Eventual Consistency page 53|
|12.04.||Introduction to Erlang (Slides)|
|19.04.||Discussing sheet 1, introduction to concurrency in Erlang (Slides)|
|26.04.||Discussing sheet 2 (part 1) (code is available in Gitlab)|
|03.05.||Discussing sheet 2 (part 2), Introduction to sheet 3 and replicated state machines|
|17.05.||Discussing sheet 3|
|24.05.||Discussing sheet 4, Introduction to next practical part|
|07.06.||Introduction to Final exercise, CRDT library|
|14.06.||In-class exercises on consistency and CRDTs, support with practical exercises|
|21.06.||Support with practical exercises and other questions (no new exercise sheet will be discussed)|
|28.06.||Guest lecture: Thomas Fuhrmann, Head of Technology, AWS Professional Services EMEA|
|2||16.04.||Message Broadcast (updated 07.07.)|
|3||23.04.||Causality, Erlang OTP|
|9||04.06.||Conflict-Free Replicated Datatypes (updated, 11.06.)|
|10||11.06.||Conflict-Free Replicated Datatypes|
|12||25.06.||Testing and Verification|
Please report errors and give feedback via our issue tracker or by mail.