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Distributed system

一种分布式系统、节点的技术，应用在分布式系统领域

Inactive Publication Date: 2012-02-01
SIEMENS AG
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the size and complexity of such large distributed systems require stable operation with minimal configuration and maintenance overhead

Method used

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Embodiment Construction

[0043] Industrial systems, especially charge scale industrial systems, may include multiple nodes. Industrial systems can include one or even millions of nodes that generate large amounts of data.

[0044] figure 1 is a schematic diagram illustrating the structure of a possible embodiment of the distributed system according to the present invention. In the illustrated embodiment, the distributed system is structured as a three-level structure. In the first level I, the master index node (MIN) creates and maintains the index structure of the searchable index. In the second level II, the index node IN forms different node areas, and the node area includes a write area and a read area. In a third level III, regular nodes N are provided, wherein these nodes comprise data generator nodes and / or data consumer nodes. Node N forms part of the read and / or write area.

[0045] Node N may have data sources for generating data and / or data sinks for consuming data. Data sources can i...

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Abstract

The invention relates to a distributed system comprising a plurality of nodes (N), said system comprising : a set of index nodes (IN) for providing a searchable index which comprises metadata for locating data in said system, wherein said set of index nodes (IN) is divided into read zones comprising a group of index nodes containing the complete searchable index, and wherein said read zones are subdivided in write zones each write zone comprising at least one index node containing a partition of said searchable index; and a master index node (MIN) maintaining an index structure of said searchable index by collecting from each index node (IN) measures of the current read and write throughput of the respective index node (IN) in dependence of a current load of the respective index node (IN), wherein said master index node (MIN) re-configures the read zones and the corresponding write zones in response to the measured read and write throughputs and the measured loads of said index nodes(IN).

Description

technical field [0001] The present invention relates to a distributed system comprising multiple nodes, and in particular to a large industrial system with an autonomous database. Background technique [0002] Industrial systems, such as power supply systems, are becoming large and complex. In addition, contemporary information and communication technologies allow high-frequency data sampling, such as by metering devices. Thus, a large amount of data is generated by the data generation node. Facilities in large industrial systems are often not homogeneous but include various hardware and software stacks with different capabilities, strengths, and weaknesses. It is necessary to take full advantage of the complex configuration of available hardware. However, the size and complexity of such large distributed systems require stable operation with minimal configuration and maintenance overhead. Contents of the invention [0003] Accordingly, it is an object of the present i...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30H04L29/08
CPCG06F17/30575G06F16/27G06F16/278G06F16/22
Inventor 克里斯托弗·格德斯
Owner SIEMENS AG
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