Jovaku: Globally Distributed Caching for Cloud Database Services Using DNS

Pettersen, Robert; Valvåg, Steffen Viken; Kvalnes, Åge; Johansen, Dag

doi:10.1109/mobilecloud.2014.20

Cited by 7 publications

(12 citation statements)

References 12 publications

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“…Having a relay-node in the cloud, located in close proximity to the database service, has already proven to be a useful technique for caching, and beneficial for read-mostly database workloads [18]. Here, we extend the relay-node with functionality for satellite execution, allowing code that has moved temporarily from a mobile device to execute in an environment with low-latency access to cloud services.…”

Section: Resultsmentioning

confidence: 99%

“…The DynamoDB library uses the http 100-continue feature when interacting with the cloud database. Use of this feature adds a communication round-trip to database interaction, needlessly inflating latency [18]. We therefore used platform interfaces to disable this http feature on desktop.…”

Section: Discussionmentioning

confidence: 99%

“…When the database is hosted in the cloud, issuing a sequence of dependent queries entails multiple round-trips of communication, and network latency becomes an important concern. For example, we have measured a latency of 50ms-350ms for accessing the Amazon DynamoDB [7] cloud database from a mobile device [18], whereas a study covering 260 global vantage points reports an average round-trip time (rtt) of 74ms for accessing Amazon ec2 instances [13]. Issuing a sequence of queries to the cloud can result in unwanted delays that are perceptible by users.…”

Section: Introductionmentioning

confidence: 99%

“…We implement satellite execution in a system called Dapper, which significantly extends and integrates the functionality of two previous systems: Rusta [23] and Jovaku [18]. Rusta is a platform for developing cloud applications that can utilize client-side storage and processing capacity, while the Jovaku system provides a distributed infrastructure for caching of cloud database values through the ubiquitous dns service.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Using Satellite Execution to Reduce Latency for Mobile/Cloud Applications

Pettersen

Valvåg

Kvalnes

et al. 2016

Communications in Computer and Information Science

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Abstract. We demonstrate a practical way to reduce latency for mobile .NET applications that interact with cloud services, without disrupting application architectures. We provide a programming abstraction for location-independent code, which has the potential to execute either locally or at a satellite execution environment in the cloud, where other cloud services can be accessed with low latency. This maintains a simple deployment model, but gives applications the option to offload latencysensitive code to the cloud. Services like cloud databases can still be accessed programmatically, but with less concern for the aggregated latency of consecutively-issued requests. Our evaluation shows that this approach can significantly improve the response time for applications that execute dependent database queries, and that the required cloudside resources are modest.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Using Satellite Execution to Reduce Latency for Mobile/Cloud Applications

Pettersen

Valvåg

Kvalnes

et al. 2016

Communications in Computer and Information Science

Self Cite

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“…Cloud Database For the DNS integration we rely on our previous work with the Jovaku system [17]. Jovaku mirrors database keys as labels in the DNS namespace.…”

Section: Relay Nodementioning

confidence: 99%

Dynamically Loading Mobile/Cloud Assemblies

Pettersen

Johansen

Valvåg

2017

Communications in Computer and Information Science

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Abstract. Modern distributed systems, such as mobile applications connecting to cloud-based backend services, benefits from a flexible mechanism for loading code dynamically at runtime. This paper describes LADY: a run-time system extending Microsoft's .NET platform with a reliable, low-latency, and secure mechanism for resolving and loading assemblies. We show that LADY achieves low-latency operations and high availability through its novel integration with DNS.

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Implementing Informed Consent as Information-Flow Policies for Secure Analytics on eHealth Data: Principles and Practices

Gjerdrum

Johansen

2016

2016 IEEE First International Conference on Connected Health: Applications, Systems and Engineering Technologies (CHASE)

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Jovaku: Globally Distributed Caching for Cloud Database Services Using DNS

Cited by 7 publications

References 12 publications

Using Satellite Execution to Reduce Latency for Mobile/Cloud Applications

Using Satellite Execution to Reduce Latency for Mobile/Cloud Applications

Dynamically Loading Mobile/Cloud Assemblies

Implementing Informed Consent as Information-Flow Policies for Secure Analytics on eHealth Data: Principles and Practices

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