Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 70 for “"high-availability"”.
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High Performance, High Availability Distributed Processor Systems
… are often heralded as systems which can provide high performance along with availability. In order to realize such an environment it is necessary to develop algorithms for sharing the system workload. Analytic as well as simulation models are being used to study the behavior of various …
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Resilire: Achieving High Availability Through Virtual Machine Live Migration
High availability is a critical feature of data centers, cloud, and cluster computing environments. Replication is a classical approach to increase service availability by providing redundancy. However, traditional replication methods are increasingly unattractive for deployment due to several …
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High Availability and Scalability Schemes for Software- Defined Networks (SDN)
… and heterogeneous environments, but also to be highly available and scalable in order to guarantee service integrity and continuity. The Software-Defined Network (SDN) has recently emerged to address the problem of the ossified Internet protocol architecture and to enable agile and flexible …
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DBHAaaS – Database High Availability As A Service For Cloud Computing
… not capable to deploy innovative approaches. The availability of “Virtual” machines on cloud has given us an architecture that makes it possible to completely do away with transaction redo which allows us to eliminate the effect of system or transaction failure by taking the database to the next …
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A High-Availability Architecture for the Dynamic Domain Name System
… DHCP server. The objectives for the design were high-availability, scalability and consistency. These properties were analyzed using the metrics of downtime during failover, replication overhead, and latency of replication. The downtime during failover was less than one second. The precision of …
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Viability of High Availability Kband Satellite Communication using Hybrid Fade Mitigation
… band in order to utilise the bandwidth at these higher frequencies. The use of higher frequencies led to fade mitigation design considerations that had not previously been necessary, as fixed power margins had been sufficient to guarantee high availability.<br/><br/>This thesis reviews the …
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Replica Control Protocols That Guarantee High Availability and Low Access Cost
Making data instantly available is very important for nowadays industrial applications. The goal of this research is to provide database management schemes for distributed systems so that data can be efficiently accessed even if there are a lot of failures and busy sites in the distributed system.
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Low-Cost Real-Time Precise Point Positioning (PPP) Correction Service with High Availability and Accuracy
Thanks to the availability of real-time state-space correction services, real-time Precise Point Positioning (PPP) is drawing increasing interests from various applications. However, the current real-time PPP correction services are mainly designed to support professional users using high-end GNSS …
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HARBOR : an integrated approach to recovery and high availability in an updatable, distributed data warehouse
Any highly available data warehouse will use some form of data replication to ensure that it can continue to service queries despite machine failures. In this thesis, I demonstrate that it is possible to leverage the data replication available in these environments to build a simple yet efficient …
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Scalable and High Available Kubernetes Cluster in Edge Environments for IoT Applications
… connected vehicle and smart factory that require high availability, scalability, low latency, and security have appeared in the world. There have been many attempts to use cloud computing for IoT applications, but the mentioned requirements cannot be ensured in cloud environments. To solve this …
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A stress-based examination of the impact of injury occurrence in elite youth football players
… since this age range has been associated with high frequency and severity of injury. Study 1 assessed the impact of hamstring strain injuries (HSI) due to the known prevalence in elite football. Players not sustaining a HSI exhibited increased eccentric hamstring strength (mean difference (MD), …
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Elastic Highly Available Cloud Computing
High availability and elasticity are two the cloud computing services technical features. Elasticity is a key feature of cloud computing where provisioning of resources is closely tied to the runtime demand. High availability assure that cloud applications are resilient to failures. Existing cloud …
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Improving Cloud Middlebox Infrastructure for Online Services
… part of the datacenter networks that provide high availability, scalability and performance to the online services. Using load balancer as an example, this thesis shows that the prevalent scale-out middlebox designs using commodity servers are plagued with three fundamental problems: (1) The …
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A Scalable Leader Based Consensus Algorithm
… like Cassandra, Spanner, and CockroachDB require high availability and strict consistency guarantees. High availability is attained through redundancy. In the field of computing, redundancy is attained through state machine repli- cation. Protocols like Raft, Multi-Paxos, ZAB, or other variants of …
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CheckSync: Transparent Primary-Backup Replication for Go Applications Using Checkpoints
… Due to their importance, they require high availability and fault tolerance. The most common way to achieve this is through the use of replicated state machines, an approach in which the application is replicated across multiple machines. There could be as few as two in a primary/backup …
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Building a columnar database on shared main memory-based storage
… scale gracefully, are elastic, and provide high-availability. c) A modern storage system such as Stanford's RAMCloud even keeps all data resident in main memory. Exploiting these characteristics in the context of a main-memory parallel database management system is desirable. The advent of …
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Monitoring PC Hardware Sounds in Linux Systems Using the Daubechies D4 Wavelet.
<p>Users of high availability (HA) computing require systems that run continuously, with little or no downtime. Modern PCs address HA needs by monitoring operating system parameters such as voltage, temperature, and hard drive status in order to anticipate possible system failure. However, one …
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Distributed dynamic partially stateful dataflow
… power of an entire cluster while providing high availability thanks to its fault tolerant design. On a single machine, Noria already outperforms MySQL by up to 7 x, but when running across a cluster of machines, it can scale to tens of millions of reads and millions of writes per second.
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Improving Monitoring of IT Systems using Machine Learning
High availability of server-bound business applications has become crucial in today's IT landscape. It is therefore important to monitor these systems for any deviations. Machine learning can be implemented to improve IT monitoring. In this project, an anomaly detection using neural networks was …
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Separation of SSL protocol phases across process boundaries
… Record phases into separate software processes, high availability and throughput can be achieved using open-source software and platforms. The delegation of the SSL Record phase to a separate process by transfer of necessary cryptographic information was achieved. Load tests conducted, showed …
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