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

Why testing is important with respect to software, Why testing is important...

Why testing is important with respect to software? A testing process focuses on logical internals of software ensuring that all statements have been tested and all are function

What are the related data items, What are the Related data items Relate...

What are the Related data items Related data items captures details of related attributes. Range of values store total possible values of that data. Data structure definition c

Explain evolutionary development model, Evolutionary Development model. ...

Evolutionary Development model.  Evolutionary Development Model : Evolutionary development model resembles iterative enhancement model. The similar phases as defined for the w

Database definition - micro cds/isis application, Database Definition: ...

Database Definition: There are four basic steps involved in defining a database. They are:  i)  Creating a Field Definition Table (FDT) : The possible content of data recor

What does a usecase diagram represent, Problem : (a) What does a UseCas...

Problem : (a) What does a UseCase Diagram represent? (b) Draw a UseCase Diagram for the above case study. (c) For any one use case give a detail use case specification.

Explain integration testing, 1. An orderly development of testing in which ...

1. An orderly development of testing in which software elements, hardware elements, or both are joined and tested, to check out their interactions, unless the entire system has bee

What is checksheet, What is Checksheet? Ans) A checksheet is the form us...

What is Checksheet? Ans) A checksheet is the form used to record data as it is gathered.

Explain what is the resource discovery problem, Question: (a) Explain ...

Question: (a) Explain what is the resource discovery problem? (b) Distinguish between centralized (hybrid) and decentralized (pure) peer to peer network? (c) Give an e

Explain cost drivers and eaf of intermediate cocomo model, Q. Explain the c...

Q. Explain the cost drivers and EAF of the intermediate COCOMO model? Ans. There are 15 different attributes described as cost drivers' attributes that determine the multiply

Software Metrics, How to interpret software metrics(any metrics)...i need a...

How to interpret software metrics(any metrics)...i need an example

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