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1. (WO2018098972) LOG RECOVERY METHOD, STORAGE DEVICE AND STORAGE NODE

Pub. No.:    WO/2018/098972    International Application No.:    PCT/CN2017/081334
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Sat Apr 22 01:59:59 CEST 2017
IPC: G06F 11/14
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: LI, Kaiguang
李开广
WANG, Ying
王英
Title: LOG RECOVERY METHOD, STORAGE DEVICE AND STORAGE NODE
Abstract:
Disclosed is a log recovery technology, which may be applied to a distributed storage system. The log recovery method comprises: after a target storage node recovers to normal from a failure, sending a request to obtain a recovery log to a normal storage node in a distributed storage system; the target storage node receiving a first recovery log record which is returned by another storage node, a first recovery log indicating a service log which requires recovery; according to an indication of the first recovery log, the target storage node sending to the normal storage node a request to obtain a service log; the target storage node generating a target service log according to a received service log; and saving the target service log.