Accession Number : ADA518655


Title :   On the Performance of Quorum Replication on the Internet


Descriptive Note : Technical rept.


Corporate Author : CALIFORNIA UNIV BERKELEY DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE


Personal Author(s) : Bakr, Omar M ; Keidar, Idit


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a518655.pdf


Report Date : 31 Oct 2008


Pagination or Media Count : 14


Abstract : Replicated systems often use quorums in order to increase their performance and availability. In such systems, a client typically accesses a quorum of the servers in order to perform an update. In this paper, we study the running time of quorum-based distributed systems over the Internet. We experiment with more than thirty servers at geographically dispersed locations; we evaluate two different approaches for defining quorums. We study how the number of servers probed by a client impacts performance and availability. We also examine the extent to which cross-correlated message loss affects the ability to predict running times accurately from end-to-end traces.


Descriptors :   *INTERNET BROWSERS , *CLIENT SERVER SYSTEMS , *INTERNET , *COMMUNICATIONS PROTOCOLS , INFORMATION TRANSFER , INFORMATION PROCESSING , INFORMATION SCIENCES , INFORMATION SYSTEMS , INFORMATION EXCHANGE , DISPERSING , POSITION(LOCATION) , TIME


Subject Categories : Information Science
      Computer Programming and Software
      Computer Systems Management and Standards
      Cybernetics
      Command, Control and Communications Systems


Distribution Statement : APPROVED FOR PUBLIC RELEASE