Service recovery method, system and related components for offline node of storage cluster system
A technology for storage clusters and business recovery, applied in response to error generation, redundancy in computing, error detection of data, instruments, etc., can solve problems affecting the normal operation of multi-control storage systems, etc.
Active Publication Date: 2022-07-22
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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Problems solved by technology
Adopting the business recovery scheme in the prior art needs to interrupt the host IO business, which affects the normal operation of the multi-controller storage system
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[0038] The core of the present application is to provide a service recovery method, system, electronic device and computer-readable storage medium for offline nodes of a storage cluster system, which can quickly restore services without interrupting upper-layer services in the process of processing offline events.
[0039] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0040...
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The present application discloses a business recovery method for an offline node of a storage cluster system, which is applied to a garbage collection process, including: when there is an offline node, setting the state of the surviving node corresponding to the offline node to an offline event processing state, so that the surviving node does not Then receive a new migration and recovery task; perform offline event processing operations through the surviving node; when the offline event processing operation is completed, set the flag bit corresponding to the request for retry of the failed data block and the flag bit corresponding to the request to retry the failed data block as target value, and restore the io host mutex module and garbage collection status of the surviving node to the normal state. This application does not need to interrupt upper-layer services in the process of processing offline events, and can quickly restore services. The present application also discloses a service recovery system, an electronic device and a computer-readable storage medium for storing offline nodes of a cluster system, which have the above beneficial effects.
Description
technical field [0001] The present application relates to the field of storage clusters, and in particular, to a business recovery method, system and related components for offline nodes of a storage cluster system. Background technique [0002] For a multi-controller storage system, the storage cluster system provides external services as a complete system, and each node that forms the cluster may leave the cluster due to failure. When a node in the multi-controller storage system goes offline, it will cause system business interruption. Offline event processing is performed on offline nodes by other nodes in the multi-controller storage system to achieve business recovery, wherein offline event processing involves multiple functional modules in the multi-controller storage system, such as garbage collection modules. Using the service recovery solution in the prior art, the IO service of the host needs to be interrupted, which affects the normal operation of the multi-contr...
Claims
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IPC IPC(8): G06F11/14
CPCG06F11/1415G06F11/1446
Inventor 刘如意李佩孙京本
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD