Improving mobile database access over wide-area networks without degrading consistency

Tolia, Niraj H.; Satyanarayanan, Mahadev; Wolbach, Adam

doi:10.1145/1247660.1247672

Cited by 20 publications

(13 citation statements)

References 57 publications

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“…To the best of our knowledge, current mobile database research focus on universal accessibility [31], [32] and there is much research space on FUSE-based file-system benchmarking on modern smart gadget devices.…”

Section: Related Workmentioning

confidence: 99%

Implementing and Optimizing an Encryption Filesystem on Android

Wang

Murmuria

Stavrou

2012

2012 IEEE 13th International Conference on Mobile Data Management

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Abstract-The recent surge in popularity of smart handheld devices, including smart-phones and tablets, has given rise to new challenges in protection of Personal Identifiable Information (PII). Indeed, modern mobile devices store PII for applications that span from email to SMS and from social media to location-based services increasing the concerns of the end user's privacy. Therefore, there is a clear need and expectation for PII data to be protected in the case of loss, theft, or capture of the portable device.In this paper, we present a novel FUSE (Filesystem in USErspace) encryption filesystem to protect the removable and persistent storage on heterogeneous smart gadget devices running the Android platform. The proposed filesystem leverages NIST certified cryptographic algorithms to encrypt the dataat-rest. We present an analysis of the security and performance trade-offs in a wide-range of usage and load scenarios. Using existing known micro benchmarks in devices using encryption without any optimization, we show that encrypted operations can incur negligible overhead for read operations and up to twenty (20) times overhead for write operations for I/Ointensive programs. In addition, we quantified the database transaction performance and we observed a 50% operation time slowdown on average when using encryption. We further explore generic and device specific optimizations and gain 10% to 60% performance for different operations reducing the initial cost of encryption. Finally, we show that our approach is easy to install and configure across all Android platforms including mobile phones, tablets, and small notebooks without any user perceivable delay for most of the regular Android applications.

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Section: Related Workmentioning

confidence: 99%

Implementing and Optimizing an Encryption Filesystem on Android

Wang

Murmuria

Stavrou

2012

2012 IEEE 13th International Conference on Mobile Data Management

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“…At infrequent intervals when a client has connection to the server (which may occur hours or days apart), its replica is refreshed from the master copy. Central server is used to hold the master copy in this strategy [20] .…”

Section: Data Replicationmentioning

confidence: 99%

Mobile Data availability Similarity between Cooperative Caching and Replication

Fageeri¹

2012

IOSRJCE

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“…Mobius provides a generalization: arbitrary caching/prefetching policies based on intelligent backend policy inference from all clients. Cedar [50] uses content addressable storage to reduce data transmission by detecting commonality between client and server query results of relational databases. Query containment checking [19] extracts matching queries with ranges of exiting tuples.…”

Section: Related Workmentioning

confidence: 99%

Mobius

Chun

Curino

Sears

et al. 2012

Proceedings of the 10th International Conference on Mobile Systems, Applications, and Services

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Mobile application development is challenging for several reasons: intermittent and limited network connectivity, tight power constraints, server-side scalability concerns, and a number of faulttolerance issues. Developers handcraft complex solutions that include client-side caching, conflict resolution, disconnection tolerance, and backend database sharding. To simplify mobile app development, we present Mobius, a system that addresses the messaging and data management challenges of mobile application development. Mobius introduces MUD (Messaging Unified with Data). MUD presents the programming abstraction of a logical table of data that spans devices and clouds. Applications using Mobius can asynchronously read from/write to MUD tables, and also receive notifications when tables change via continuous queries on the tables. The system combines dynamic client-side caching (with intelligent policies chosen on the server-side, based on usage patterns across multiple applications), notification services, flexible query processing, and a scalable and highly available cloud storage system. We present an initial prototype to demonstrate the feasibility of our design. Even in our initial prototype, remote read and write latency overhead is less than 52% when compared to a hand-tuned solution. Our dynamic caching reduces the number of messages by a factor of 4 to 8.5 when compared to fixed strategies, thus reducing latency, bandwidth, power, and server load costs, while also reducing data staleness.

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Improving mobile database access over wide-area networks without degrading consistency

Cited by 20 publications

References 57 publications

Implementing and Optimizing an Encryption Filesystem on Android

Implementing and Optimizing an Encryption Filesystem on Android

Mobile Data availability Similarity between Cooperative Caching and Replication

Mobius

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