What is FusionInsight system used for?

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As data increases, structured data (such as financial data), semi-structured or unstructured data (such as orders, contracts, and logs), and related data obtained from the Internet are accumulated in enterprises' production and operation systems. The data contains huge value. The existing first data plane of enterprises (represented by Oracle and EMC products) is expensive and difficult to expand. It applies only to the processing of structured data. In the big data era, enterprises need to construct the second data plane to process higher amounts of multi-dimensional data. Data of the second data plane comes from the first data plane and external systems. The construction or operation of the second data plane does not affect the first transaction-oriented data plane.

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Reasons for using the FusionInsight system
As data increases, structured data (such as financial data), semi-structured or unstructured data (such as orders, contracts, and logs), and related data obtained from the Internet are accumulated in enterprises' production and operation systems. The data contains huge value. The existing first data plane of enterprises (represented by Oracle and EMC products) is expensive and difficult to expand. It applies only to the processing of structured data. In the big data era, enterprises need to construct the second data plane to process higher amounts of multi-dimensional data. Data of the second data plane comes from the first data plane and external systems. The construction or operation of the second data plane does not affect the first transaction-oriented data plane.

What is a service in the FusionInsight system?
A service is a kind of service capability provided by a component in a cluster. Each component in the cluster provides a service and is named by the service. For example, HBase, HDFS, and Spark are all service names.

What is a role in the FusionInsight system?
A role is an element of a service. A service consists of one or multiple roles. Services are installed on hosts (servers) through roles, ensuring proper service running. For example, the HBase service consists of three roles, namely, HMaster (HM), RegionServer (RS), and ThriftServer (TS).

What is a cluster in the FusionInsight system?
A cluster is a computer technology that enables multiple servers to work as one server. It is deployed to improve the stability, reliability, and data processing or service capabilities of the system. For example, use of clusters helps prevent single point of failures (SPOFs), supports storage sharing and load sharing, and improves system performance.

What is a role instance in the FusionInsight system?
An instance is formed when a service role is installed on a host. Each service has a corresponding role instance.

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