Distributed database

Inactive Publication Date: 2013-07-18
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0020]It is an aim of the present invention to overcom

Problems solved by technology

Depending on where (i.e. at which remote database node) the data is stored or is intended to be stored, the time taken to access the data will vary, due mainly to the inherent transmission delays of the network that increase as the distance between the database nodes increases.
However, this delay will be longer than would be experienced if the data was stored locally, at DB Node 1.
Therefore, the data access latency, as perceived by the client, could be very poor in some cases, especially if the database spans large distances.
The remaining 75% will need to be forwarded to other database nodes and will therefore be affected by the associated delays.
The additional latency introduced through the use of a distr

Method used

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Embodiment Construction

[0079]There will now be described a method of operating a distributed database that minimizes the impact of the geographical separation of the database nodes whilst maintaining the advantages provided by a distributed architecture. The method involves database nodes that, upon receiving a request from a client to manipulate data that is stored or is intended to be stored at another of the database nodes, forward the request towards the database node that stores or is intended to store the data and send an early response to the client indicating that the data manipulation has been successful, the early response being sent prior to receiving a final response from the database node storing the data.

[0080]The early response is therefore sent before the database node that stores or is intended to store the data has indicated that the requested data manipulation has actually been successfully completed. However, it is assumed that a distributed database system will successfully complete a la

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Abstract

According to a first aspect of the present invention there is provided a method of operating a distributed database comprising a plurality of database nodes. The method comprises, at a first database node of the plurality of database nodes, receiving a request to manipulate data from a client (B1), determining if the data is stored or is intended to be stored at the first database node and, if the data is not stored or is not intended to be stored at the first database node, forwarding the request towards a second database node of the plurality of database nodes (B2) and, prior to receiving a final response from the second database node, sending an early response to the client indicating that the data manipulation has been successful (B3).

Description

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Claims

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Application Information

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Owner TELEFON AB LM ERICSSON (PUBL)
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