CS2040 ADVANCED OPERATING SYSTEMS Lecture Notes for CSE - Seventh (7th) Semester -by R.Anirudhan

CS2040 ADVANCED OPERATING SYSTEMS Lecture Notes for CSE - Seventh (7th) Semester

CS2040 Lecture Notes 


Architectures of Distributed Systems - System Architecture types - issues in distributed
operating systems - communication networks – communication primitives. Theoretical
Foundations - inherent limitations of a distributed system – lamp ports logical clocks –
vector clocks – casual ordering of messages – global state – cuts of a distributed
computation – termination detection. Distributed Mutual Exclusion – introduction – the
classification of mutual exclusion and associated algorithms – a comparative
performance analysis.

Distributed Deadlock Detection -Introduction - deadlock handling strategies in
distributed systems – issues in deadlock detection and resolution – control organizations
for distributed deadlock detection – centralized and distributed deadlock detection
algorithms –hierarchical deadlock detection algorithms. Agreement protocols –
introduction-the system model, a classification of agreement problems, solutions to the
Byzantine agreement problem, applications of agreement algorithms. Distributed
resource management: introduction-architecture – mechanism for building distributed file
systems – design issues – log structured file systems.

Distributed shared memory-Architecture– algorithms for implementing DSM – memory
coherence and protocols – design issues. Distributed Scheduling – introduction – issues
in load distributing – components of a load distributing algorithm – stability – load
distributing algorithm – performance comparison – selecting a suitable load sharing
algorithm – requirements for load distributing -task migration and associated issues.
Failure Recovery and Fault tolerance: introduction– basic concepts – classification of
failures – backward and forward error recovery, backward error recovery- recovery in
concurrent systems – consistent set of check points – synchronous and asynchronous
check pointing and recovery – check pointing for distributed database systems- recovery
in replicated distributed databases.

Protection and security -preliminaries, the access matrix model and its implementations.-
safety in matrix model- advanced models of protection. Data security – cryptography:
Model of cryptography, conventional cryptography- modern cryptography, private key
cryptography, data encryption standard- public key cryptography – multiple encryption –
authentication in distributed systems.

Multiprocessor operating systems - basic multiprocessor system architectures – inter
connection networks for multiprocessor systems – caching – hypercube architecture.
Multiprocessor Operating System - structures of multiprocessor operating system,
operating system design issues- threads- process synchronization and scheduling.
Database Operating systems :Introduction- requirements of a database operating
system Concurrency control : theoretical aspects – introduction, database systems – a
concurrency control model of database systems- the problem of concurrency control –
serializability theory- distributed database systems, concurrency control algorithms –
introduction, basic synchronization primitives, lock based algorithms-timestamp based
algorithms, optimistic algorithms – concurrency control algorithms, data replication.

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