Processing method and device during data storage
A technology of data storage and processing method, which is applied in electrical digital data processing, redundancy in operation, data error detection, response error generation, etc., and can solve problems such as low data recovery success rate.
Active Publication Date: 2018-04-27
TENCENT TECH (SHENZHEN) CO LTD +1
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Problems solved by technology
[0005] In order to solve the technical problem of the low success rate of data recovery due to the strict time matching of snapshots and pipelines in the related art, this disclosure provides a processing method and device in data storage
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[0033] Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0034] figure 1 is a block diagram of a device 100 shown according to an exemplary embodiment. The apparatus 100 may be a machine equipped with a database, such as, for example, a server implementing a data storage function.
[0035] see figure 1 , the device 100 may have relatively large differences due to different configurations or performances, and may include one or more central processing u...
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The invention discloses a processing method and device during data storage. The method includes the steps of receiving an instruction for triggering data recovery; according to the instruction, conducting snapshot loading, and recovering data to snapshot generation time through snapshot loading to obtain initial recovery data; according to recording data of a write operation in a stream and a dataversion of data, corresponding to the write operation, in the initial recovery data, and executing repeat of the write operation; through the repeat of the write operation in the stream, further recovering the initial recovery data to an assigned time point of the stream. For any piece of data in the initial recovery data, corresponding data versions are all provided, whether or not the corresponding write operation in the stream is executed on the data is determined according to the data versions and the recording data of the write operation, and the determination result serves as a basis for executing repeat of the write operation on the initial recovery data; under the control mechanism, the stream and a snapshot do not need to be matched with each other strictly in time, the implementation of data recovery can also be ensured, and the success rate of the data recovery is increased.
Description
technical field [0001] The present disclosure relates to the technical field of data storage, and in particular to a processing method and device in data storage. Background technique [0002] Backup and data recovery in data storage are realized through snapshots and pipelines. The snapshot will record data, while the pipeline will record the write operations triggered by a period of time. In data recovery through snapshots and pipelines, the essence is to restore the full amount of data through snapshots first, and based on the recovered full amount of data, execute write operations in the pipeline, and then restore the snapshot generation time point to the specified time in the pipeline The data that has changed between points, so far, the data recovery is completed. [0003] It can be seen that, in the existing implementation of data recovery, the time point corresponding to the pipeline matched with the snapshot must start from the time point when the snapshot is gene...
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IPC IPC(8): G06F11/14
CPCG06F11/1448
Inventor 徐承杰
Owner TENCENT TECH (SHENZHEN) CO LTD