Title:
METHOD FOR REPAIRING DATABASE SYSTEM FAILURES, DATABASE SYSTEM AND COMPUTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/228712
Kind Code:
A1
Abstract:
A method for repairing database system failures, the method using a global page buffer pool (GBP) node. Specifically, during a normal operation period, a host, by means of a low-latency, high-throughput data transfer protocol (such as a remote direct memory access (RDMA) protocol), backing up to the GBP node modified pages produced due to task modification. As such, when the host fails, a backup machine does not need to replay all the remaining redo logs that have not been replayed, but only needs to replay pages that do not exist on the GBP node and redo logs corresponding to pages that are not arranged in order and obtain said pages, then the backup machine can be promoted to host; in other words, failure of a database system can be repaired.
Inventors:
WANG CHUANTING (CN)
ZHU ZHONGCHU (CN)
XING YUHUI (CN)
ZHU ZHONGCHU (CN)
XING YUHUI (CN)
Application Number:
PCT/CN2020/089909
Publication Date:
November 19, 2020
Filing Date:
May 13, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F11/14
Foreign References:
| CN106815275A | 2017-06-09 | |||
| CN108874588A | 2018-11-23 | |||
| US20150254264A1 | 2015-09-10 | |||
| US20170300391A1 | 2017-10-19 |
Other References:
See also references of EP 3961400A4
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