A disaster recovery system and its data reading method
A technology for data reading and disaster recovery, which can solve the problem of reducing the adaptability of disaster recovery systems by applying redundancy in computing for error detection of data, redundancy in hardware for error detection of data, and generation of response errors. , unable to provide external data services and other issues, to achieve the effect of improving adaptability
Active Publication Date: 2018-03-09
TENCENT TECH (SHENZHEN) CO LTD
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Problems solved by technology
[0005] The technical problem to be solved by the embodiments of the present invention is to provide a disaster recovery system and its data reading method, which is used to solve the problem that some Slave cannot communicate externally when a new data has not yet been stored in the Slave but has received a reading request for the new data. Provides data services, thereby reducing the problem of adaptability of the disaster recovery system
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] The embodiment of the present invention provides a disaster recovery system and its data reading method, which can be notified by the slave when some disaster recovery slaves (Slave) have not yet stored new data but have received a read request for the new data The disaster recovery host (Master) reads the new data and provides data services externally, thereby improving the adaptability of the disaster recovery system. Each will be described in detail ...
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The embodiment of the present invention discloses a disaster recovery system and its data reading method, wherein the data reading method of the disaster recovery system includes: the disaster recovery slave machine receives the data reading request sent by the requesting end, and the data reading The request carries the index of the data that the requester needs to read; the disaster recovery slave machine is based on the index of the data that the requester needs to read, and there is no data that the requester needs to read in the disaster recovery slave machine In the case of fetching data, notify the disaster recovery host to read the data that the requesting end needs to read and send it to the requesting end. In the embodiment of the present invention, when some disaster recovery slaves have not yet stored new data but have received a read request for the new data, the disaster recovery slaves can notify the disaster recovery host to read the new data and provide data services externally. Therefore, the adaptability of the disaster recovery system can be improved.
Description
technical field [0001] The invention relates to the technical field of disaster recovery, in particular to a disaster recovery system and a data reading method thereof. Background technique [0002] The disaster recovery system refers to an environment that can cope with various disasters provided for the computer information system. When the computer system suffers from irresistible natural disasters such as fire, flood, earthquake, war, etc., as well as man-made disasters such as computer crime, computer virus, power failure, network / communication failure, hardware / software error, and human error, the disaster recovery system It will ensure the security of user data (that is, data disaster recovery), and even a more complete disaster recovery system can provide uninterrupted application services (that is, application disaster recovery). It can be said that the disaster recovery system is the highest level of data storage backup. [0003] A disaster recovery system usuall...
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IPC IPC(8): G06F11/14G06F11/16
Inventor 胡鸣人
Owner TENCENT TECH (SHENZHEN) CO LTD