Title:
DATA READING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/028718
Kind Code:
A1
Abstract:
A data reading method and device. The data reading method comprises: during a process of scanning an index clustering table, scanning leaf nodes and recording page numbers of the leaf nodes (S10); and merging I/O requests of the leaf nodes with consecutive page numbers into one I/O request (S11). Because data of multiple leaf nodes in physically consecutive storage locations is read by means of one I/O request, the data volume read by each I/O request is increased, thereby fully utilizing the overall disk throughput. In addition, to read data of the same storage volume, the number of I/O requests that need to be initiated can be reduced, thereby avoiding the limitation of the disk IOPS parameter, and effectively improving the data reading efficiency.
Inventors:
ZHAO JIANWEI (CN)
Application Number:
PCT/CN2016/094319
Publication Date:
February 23, 2017
Filing Date:
August 10, 2016
Export Citation:
Assignee:
ALIBABA GROUP HOLDING LTD (CN)
International Classes:
G06F17/30
Foreign References:
| CN101127045A | 2008-02-20 | |||
| CN103336669A | 2013-10-02 | |||
| CN103150167A | 2013-06-12 | |||
| CN102651008A | 2012-08-29 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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