Linearizability and sequential consistency, Software Engineering

Assignment Help:

QUESTION - Fault Tolerance

(a) Three computers together provide a replicated service. The manufacturers claim that each computer has a mean time between failure of five days; a failure typically takes four hours to fix. What is the availability of the replicated service?

(b) In the gossip architecture, why does a replica manager need to keep both a ‘replica' timestamp and a ‘value' timestamp?

(c) Explain the difference between linearizability and sequential consistency, and why the latter is more practical to implement, in general.

(d) Explain why allowing backups to process read operations leads to sequentially consistent rather than linearizable executions in a passive replication system.


Related Discussions:- Linearizability and sequential consistency

Statistical and Numerical methods using C++, 5. Write a c++ program to find...

5. Write a c++ program to find the sum of 0.123 ??103 and 0.456 ??102 and write the result in three significant digits.

What is validation represent, What is Validation represent? Validation ...

What is Validation represent? Validation means a set of deeds that ensure that the software that has been built to satisfy the customer requirements.

Why do dns root servers hold entries for two-level, QUESTION - Name Service...

QUESTION - Name Services (a) Illustrate with help of a diagram the results of a DNS lookup and an ARP lookup assuming we are using IPv4. (b) Why do DNS root servers hold en

When must a function throw an exception, When must a function throw an exce...

When must a function throw an exception? A function must throw an exception when it's not able to fulfil its promise. As soon as function detects a problem which prevents it

List some of the design principles, Mention some of the Design principles. ...

Mention some of the Design principles. a.    The design process should not suffer from tunnel vision. b.    The design should not reinvent the wheel. c.     The Design sh

What is infeasible path, Explain Infeasible Path? Program statement sequ...

Explain Infeasible Path? Program statement sequence that can never be implemented.

Code restructuring, Ask quewhat is code restructuringstion #Minimum 100 wor...

Ask quewhat is code restructuringstion #Minimum 100 words accepted#

What is embedded system partitioning, Question : (a) What is embedded s...

Question : (a) What is embedded system partitioning? What is decided during partitioning? (b) What is the difference between structural and functional partitioning? Which on

Describe the various steps of the reuse-oriented model, Q. Describe the var...

Q. Describe the various steps of the reuse-oriented model? The reuse-oriented model, also called reuse-oriented development (ROD), is a method of software development in which

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd