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Security and advantages of cluster computing over distributed systems

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documents in English
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7 pages
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  1. Introduction
  2. Overview of 'cluster architecture'
  3. Role of application servers and multi-tier architecture
  4. Meaning of gateway security
  5. Conclusion
  6. References

A cluster is a parallel or distributed system consisting of independent computers that cooperate as a single system. In the case Server, Cluster consists of two types of participant's dispatchers and servers. The goal of a cluster is to allow distributing of the computing load over the several machines participating in it. These machines communicate with the dispatchers and with each other in order to provide better, faster and more reliable service to the client. The idea of clusters is that the machines in it represent one unit and clients perceive the cluster as a single entity, not as a group, for clients the IP address of the dispatcher is the IP address of the whole cluster. When connected in a cluster, servers are still physically separated as different machines. The participants in the cluster share disk access and resources that manage data, but they do not share memory or processors.

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