PPT-Checkpointing-Recovery CS5204 – Operating Systems

1 CS 5204 Operating Systems 2 Fault Tolerance erroneous state error valid state failure causes fault leads to recovery An error is a manifestation of a fault that can lead to a failure. and. PAXOS. Sergio . Bernales. 1. Dennis Kafura – CS5204 – Operating Systems. Overview. Chubby. Why?. How?. More precise how. Paxos. Why?. How?. More precise why. Dennis . Kafura. – CS5204 – Operating Systems. Authors : Sanjay . Ghemawat. , Howard . Gobioff. , Shun-. Tak. Leung. Presentation by: Vijay Kumar Chalasani. 1. CS5204 – Operating Systems. I. ntroduction. GFS is a scalable distributed file system for large data intensive applications. Presentation by: Eric Frohnhoefer. 1. CS5204 . – Operating Systems. CS5204 . – Operating Systems. Assumptions. Built from inexpensive commodity components. Cheap components frequently fail. Modest number of large files. Published in:. National Aerospace & Electronics Conference (NAECON), 2012 IEEE. Authors. :. Belal. H. . Sababha. Princess . Sumaya. University for Technology, Amman, Jordan. Osamah A. Rawashdeh and Waseem A. Sa’deh. Security. Identity-based Encryption. 1. Dennis Kafura – CS5204 – Operating Systems. Diffie. -Hellman Key Exchange. How can two parties come to possess a shared secret using only insecure channels of communication?. A Meta-Model. 1. Dennis Kafura – CS5204 – Operating Systems. Dennis Kafura – CS5204 – Operating Systems. Motivation. Goal: develop a general and semantically well grounded model of access control from which specific access control systems can be expressed by specialization of the model’s elements.. Highly Available Key-Value Store. 1. Dennis Kafura – CS5204 – Operating Systems. Dennis Kafura – CS5204 – Operating Systems. Context. Core e-commerce services need scalable and reliable storage for massive amounts of data. Redux. Changing thread semantics. 1. Dennis Kafura – CS5204 – Operating Systems. Dennis Kafura – CS5204 – Operating Systems. Grace: Overview. Goal. Eliminate classes of concurrency errors. For applications using fork-join parallelism. Presented by:. Josh Baker. October 9. th. , 2012. 1. CS5204 . – Operating Systems. CS5204 . – Operating Systems. Overview. What is cryptographic security?. Uses. Main Points. What is a . “. Key/Certificate”?. Dheeraj Lokam. Compiler Microarchitecture Lab. Arizona State University. 2. Key Takeaways . 3. Implementing light weight checkpointing at assembly level. Accomplishing a quick recovery . on top of an existing detection . 1. Dennis Kafura – CS5204 – Operating Systems. Motivation. Reliance on remote clients/servers. Financial records and e-commerce. Electronic medical records. Cloud computing. Threats to clients from remote servers. Purdue University. West Lafayette, IN. Date: April 8, 2013. Reliable and Scalable Checkpointing Systems for . Distributed . Computing Environments. Final exam of. Distributed Computing Environments. Tanzima Islam (tislam@purdue.edu). Chapter 13. Anh Huy Bui. Jason Wiggs. Hyun Seok Roh. 1. Introduction . Rollback recovery protocols. restore the system back to a consistent state after a failure. achieve fault tolerance by periodically saving the state of a process during the failure-free execution . Presented by Sarah Arnold. 1. Agenda. Goals. Fault Tolerance. Failure Recovery. System Overview. Coordinated Checkpointing . Communication-Induced Checkpointing. Logging. Conclusions. 2. Goals. To recover the system after any type of fault has been introduced to the system and to minimize the amount of computation lost.