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

Explain the essential api concepts associated with j2me, Question: (a) ...

Question: (a) State and explain the essential API concepts associated with J2ME. (b) Connected Limited Device Configuration provides two types of application security; stat

Test plan including test cases, This assignment aims to provide the opportu...

This assignment aims to provide the opportunity to integrate and develop your analytical and written communication skills, and speci?cally to:develop your skills at developing test

What does it mean by business process engineering tools, What does it mean ...

What does it mean by business process engineering tools ?

Discuss in details about integration testing, Discuss in details about Inte...

Discuss in details about Integration testing. It is a systematic procedure to construct the program structure. Incremental integration - The program is built and tested i

Determine the business process engineering tools, What are business process...

What are business process engineering tools? By modelling the strategic information requirements of an organization, business process engineering tools provide a "meta-model" f

List the guidelines for data design, List the guidelines for data design. ...

List the guidelines for data design. i. Apply systematic analysis on data. ii. Identify data structures and related operations. iii. Establish data dictionary. iv. Use

Srs, Why is SRS document known as black box specification of a system

Why is SRS document known as black box specification of a system

C++, program for full subtractor?

program for full subtractor?

Explain user and system documentation, User and System documentation with e...

User and System documentation with examples. User documentation having descriptions of the functions of a system without reference to how these functions are executed. Examples

Different server platforms for erp systems, Question: a. Assume that yo...

Question: a. Assume that you have three similar projects, and, in each, the ratios of problems found during system test versus first year in the field have been 1.5, 1.2, and

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