Runtime Replica Consistency Mechanism For Cloud Data Storage
نویسنده
چکیده
A cloud computing is becoming increasingly popular; cloud storage services attract more attentions for their high security and availability with a low cost. Cloud storage is expected to become the main force of the future storage market. As a key technology of cloud computing, replication faces new challenges, especially replica consistency. The intrinsic characteristic heterogeneous of cloud applications makes their consistency requirements different where the consistency requirement of certain application changes continuously at runtime. This paper presents a Runtime Replica Consistency Mechanism for cloud data storage to achieve a dynamic balance between consistency and performance. Evaluation result show that the propose mechanism guaranteeing the consistency and decrease the overhead. Keywords—; replica consistency; cloud storage.
منابع مشابه
File heat-based Self-adaptive Replica Consistency Strategy for Cloud Storage
In cloud storage systems, replica is a key technology, which reduces access time lag, network bandwidth consumption and system unreliability. However, an inadequate replica consistency management mechanism would cause problems for cloud storage systems in the time lag of file access and network bandwidth consumption. Therefore, this paper proposes a self-adaptive replica consistency strategy wh...
متن کاملImproving Data Availability Using Combined Replication Strategy in Cloud Environment
As grow as the data-intensive applications in cloud computing day after day, data popularity in this environment becomes critical and important. Hence to improve data availability and efficient accesses to popular data, replication algorithms are now widely used in distributed systems. However, most of them only replicate the static number of replicas on some requested chosen sites and it is ob...
متن کاملApplication of VCG in Replica Placement Strategy of Cloud Storage
With the rapid development of the cloud computing and big data, many data center network are growing more large scale, and the number of servers is increasing at an exponential rate. In this paper, VCG (Vickrey-Clarke-Groves) mechanism was introduced into replica placement. Mapping from replica placement model to VCG mechanism was established and suitable payment function was designed. Data sto...
متن کاملAmazon Simpledb Of- Fers the Same Choices for Clients That
r e P liCated storaGe systems for the cloud deliver different consistency guarantees to applications that are reading data. Invariably, cloud storage providers redundantly store data on multiple machines so that data remains available in the face of unavoidable failures. Replicating data across datacenters is not uncommon, allowing the data to survive complete site outages. However, the replica...
متن کاملScalable and Accurate Causality Tracking for Eventually Consistent Stores
In cloud computing environments, data storage systems often rely on optimistic replication to provide good performance and availability even in the presence of failures or network partitions. In this scenario, it is important to be able to accurately and efficiently identify updates executed concurrently. Current approaches to causality tracking in optimistic replication have problems with conc...
متن کامل