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A GGQS-based hybrid algorithm for inter-cloud time-critical event dissemination

Ihn-Han Bae
2012 Journal of the Korean Data and Information Science Society  
One of the fundamental challenges in geographically distributed clouds is to provide efficient algorithms for supporting inter-cloud data management and dissemination.  ...  Then it uses a hybrid protocol that combines geographic group-based broadcast with quorum-based multicast.  ...  , storage, network capacity, and other fundamental computing resources, e.g. rent of space on the Internet, • PaaS -deploys customer-created applications to a cloud, e.g. provision of developer tools on  ... 
doi:10.7465/jkdi.2012.23.6.1259 fatcat:vemg2e336ffmna67hibquneume

Performance Sensitive Replication in Geo-distributed Cloud Datastores

P.N. Shankaranarayanan, Ashiwan Sivakumar, Sanjay Rao, Mohit Tawarmalani
2014 2014 44th Annual IEEE/IFIP International Conference on Dependable Systems and Networks  
In this paper, we tackle these challenges in the context of quorum-based systems (e.g. Amazon Dynamo, Cassandra), an important class of cloud storage systems.  ...  We evaluate our models using real-world traces of three applications: Twitter, Wikipedia and Gowalla on a Cassandra cluster deployed in Amazon EC2.  ...  Our evaluations on a multi-region EC2 test-bed, and longitudinal workloads of three widely deployed applications validate our models, and confirm their importance. XIII.  ... 
doi:10.1109/dsn.2014.34 dblp:conf/dsn/NSRT14 fatcat:dmi3mbl7zba2dkjwet3j46vcd4

From cells to organisms

Kalman Graffi, Aleksandra Kovacevic, Nicolas Liebau, Ralf Steinmetz
2008 Proceedings of the 8th international conference on New technologies in distributed systems - NOTERE '08  
In order to fulfill these service level agreements, the peers confederate to a distributed supervisor of peer resources (DISPRO), monitoring the network, predicting trends on resource availabilities and  ...  In this paper we present the idea of a P2P system acting as a service provider using the resources of participating peers and stating guarantees on the quality of the service it provides.  ...  However, membership and reputation models for distributed systems are necessary to adopt. We assume that we have a dynamical set of peers participating in quorums.  ... 
doi:10.1145/1416729.1416752 dblp:conf/notere/GraffiKLS08 fatcat:lyykvksf2veo5ppymlxb4gnuri

DAX

Rui Liu, Ashraf Aboulnaga, Kenneth Salem
2013 Proceedings of the VLDB Endowment  
Many applications hosted on the cloud have sophisticated data management needs that are best served by a SQL-based relational DBMS.  ...  DAX makes this choice for each read or write operation by applying protocols that we designed based on the storage tier usage characteristics of database systems.  ...  In the remainder of this section, we describe a baseline implementation of the DAX storage tier based on this idea.  ... 
doi:10.14778/2535570.2488332 fatcat:53qfammswfdqzdaerm5oiwtpkm

Antiquity

Hakim Weatherspoon, Patrick Eaton, Byung-Gon Chun, John Kubiatowicz
2007 Proceedings of the 2nd ACM SIGOPS/EuroSys European Conference on Computer Systems 2007 - EuroSys '07  
Antiquity is a wide-area distributed storage system designed to provide a simple storage service for applications like file systems and back-up.  ...  Antiquity uses a secure log to maintain data integrity, replicates each log on multiple servers for durability, and uses dynamic Byzantine faulttolerant quorum protocols to ensure consistency among replicas  ...  Signature creation/verification takes an average of 6.0/0.6 ms on the test cluster and 3.2/0.6 ms on the storage cluster. Bandwidth of the SHA-1 routine on the storage cluster is 80.0 MB/s.  ... 
doi:10.1145/1272996.1273035 dblp:conf/eurosys/WeatherspoonECK07 fatcat:h7nlitdeiza4pesswga4yivlaq

Antiquity

Hakim Weatherspoon, Patrick Eaton, Byung-Gon Chun, John Kubiatowicz
2007 ACM SIGOPS Operating Systems Review  
Antiquity is a wide-area distributed storage system designed to provide a simple storage service for applications like file systems and back-up.  ...  Antiquity uses a secure log to maintain data integrity, replicates each log on multiple servers for durability, and uses dynamic Byzantine faulttolerant quorum protocols to ensure consistency among replicas  ...  Signature creation/verification takes an average of 6.0/0.6 ms on the test cluster and 3.2/0.6 ms on the storage cluster. Bandwidth of the SHA-1 routine on the storage cluster is 80.0 MB/s.  ... 
doi:10.1145/1272998.1273035 fatcat:kic4pe6fqfdxbcmbptyvxv7teu

Combining Blockchains, Smart Contracts, and Complex Sensors Management Platform for Hyper-Connected SmartCities: An IoT Data Marketplace Use Case

Georgios Palaiokrassas, Petros Skoufis, Orfefs Voutyras, Takafumi Kawasaki, Mathieu Gallissot, Radhouene Azzabi, Akira Tsuge, Antonios Litke, Tadashi Okoshi, Jin Nakazawa, Theodora Varvarigou
2021 Computers  
Blockchains, as distributed ledgers, can be used for addressing the development of a universal system for data collection and distribution.  ...  storage.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/computers10100133 fatcat:ektfxltgzvegxe2yp3cwl7s5ni

MDCC: Multi-Data Center Consistency [article]

Tim Kraska, Gene Pang, Michael J. Franklin, Samuel Madden
2012 arXiv   pre-print
We further propose a new programming model which empowers the application developer to handle longer and unpredictable latencies caused by inter-data center communication.  ...  Replicating data across multiple data centers not only allows moving the data closer to the user and, thus, reduces latency for applications, but also increases the availability in the event of a data  ...  Classic Paxos Paxos is a family of quorum-based protocols for arriving at consensus on a single value among a group of replicas.  ... 
arXiv:1203.6049v1 fatcat:vorf7zi67jgnbgz4rklqupn6vu

Amazon Aurora

Alexandre Verbitski, Xiaofeng Bao, Anurag Gupta, Debanjan Saha, Murali Brahmadesam, Kamal Gupta, Raman Mittal, Sailesh Krishnamurthy, Sandor Maurice, Tengiz Kharatishvili
2017 Proceedings of the 2017 ACM International Conference on Management of Data - SIGMOD '17  
Finally, having operated Aurora as a production service for over 18 months, we share lessons we have learned from our customers on what modern cloud applications expect from their database tier.  ...  Amazon Aurora is a relational database service for OLTP workloads offered as part of Amazon Web Services (AWS).  ...  ACKNOWLEDGMENTS We thank the entire Aurora development team for their efforts on the project including our current members as well as our distinguished alumni (James Corey, Sam McKelvie, Yan Leshinsky,  ... 
doi:10.1145/3035918.3056101 dblp:conf/sigmod/VerbitskiGSBGMK17 fatcat:xval5ntcwvcxrpkrcrvf3kkjo4

Oasis: an architecture for simplified data management and disconnected operation

Maya Rodrig, Anthony LaMarca
2005 Personal and Ubiquitous Computing  
Our performance evaluation and the implementation of three applications suggest that Oasis offers good availability and performance while providing a simple API and a familiar consistency model.  ...  Oasis addresses these requirements by employing a peer-topeer network of weighted replicas and performing background self-tuning.  ...  The search for servers can be based on a discovery service or one of many distributed search schemes, such as distributed hash tables (DHTs) [29] .  ... 
doi:10.1007/s00779-004-0315-6 fatcat:6inusgpjf5brrbgz3sqhkn4rmy

Oasis: An Architecture for Simplified Data Management and Disconnected Operation [chapter]

Anthony LaMarca, Maya Rodrig
2004 Lecture Notes in Computer Science  
Our performance evaluation and the implementation of three applications suggest that Oasis offers good availability and performance while providing a simple API and a familiar consistency model.  ...  Oasis addresses these requirements by employing a peer-topeer network of weighted replicas and performing background self-tuning.  ...  The search for servers can be based on a discovery service or one of many distributed search schemes, such as distributed hash tables (DHTs) [29] .  ... 
doi:10.1007/978-3-540-24714-2_9 fatcat:t3x3hhtgifdqri2wi6v2p4em4a

GeoQuorum: Load balancing and energy efficient data access in wireless sensor networks

Jun Luo, Ying He
2011 2011 Proceedings IEEE INFOCOM  
When data productions and consumptions are heavily unbalanced and when the origins of data queries are spatially and temporally distributed, the so called in-network data storage paradigm supersedes the  ...  Our proposal significantly expands the quorum design methodology, by endowing a system with a great flexibility to fine-tune itself towards different application requirements.  ...  Specifically, we have revived the application of quorum systems in WSNs, and proposed the concept of geometric quorum systems based on a new development in combining computational conformal geometry with  ... 
doi:10.1109/infcom.2011.5935238 dblp:conf/infocom/LuoH11 fatcat:upprm3a4kna7xa2cs4ayktklze

A Serverless Distributed Ledger for Enterprises [article]

Johannes Sedlmeir, Tim Wagner, Emil Djerekarov, Ryan Green, Johannes Klepsch, Shruthi Rao
2021 arXiv   pre-print
frameworks, and propose a novel distributed ledger design that is "serverless", i.e., built on cloud-native resources.  ...  it offers ease of deployment, low transactional cost structure, and a combination of latency and scalability aligned with real-time IT application needs.  ...  We posit that many of the limitations regarding performance, complexity, and cost in existing enterprise distributed ledger implementations are driven by their reliance on a server-based deployment model  ... 
arXiv:2110.09221v1 fatcat:zfhefpw7pfhp5mtm5hcpodofwu

High-Availability Clusters: A Taxonomy, Survey, and Future Directions [article]

Premathas Somasekaram, Radu Calinescu, Rajkumar Buyya
2021 arXiv   pre-print
In this paper, we first describe the manifold uses of HACs to protect essential layers of a critical application and present the architecture of high availability clusters.  ...  The delivery of key services in domains ranging from finance and manufacturing to healthcare and transportation is underpinned by a rapidly growing number of mission-critical enterprise applications.  ...  A disk-based quorum is based on a disk, which can be either local or shared [2, 4] .  ... 
arXiv:2109.15139v2 fatcat:yw3izfigkncbhkjkl43ptfuxu4

Decentralized weighted voting for P2P data management

Maya Rodrig, Anthony LaMarca
2003 Proceedings of the 3rd ACM international workshop on Data engineering for wireless and mobile access - MobiDe '03  
Weighted voting offers a familiar consistency model and supports on-line replica reconfiguration. These properties make it a good fit for applications in the pervasive computing domain.  ...  By distributing versioned metadata along with data replicas, and managing access to both data and metadata with the same quorums, our algorithm supports a peer-to-peer environment with dynamic device membership  ...  Oasis was designed based on the storage management requirements of a collection of existing pervasive computing applications [13] .  ... 
doi:10.1145/940935.940939 fatcat:2nr3h7bslfeodk6pfwcllg3p3a
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