Title:
LAYERED CACHING METHOD AND SYSTEM FOR DNS RECURSIVE SERVER
Document Type and Number:
WIPO Patent Application WO/2017/088225
Kind Code:
A1
Abstract:
The present invention relates to a layered caching method and system for a DNS recursive server. The method comprises the following steps: 1) dividing a cache of a DNS recursive server into a high-frequency domain name cache queue and a low-frequency domain name cache queue; 2) storing response records of domain names in different cache queues of the DNS recursive server according to the difference in query frequencies of the domain names; and 3) if a domain name response record in the low-frequency domain name cache queue exceeds a pre-set domain name access frequency threshold value, migrating the domain name response record to the high-frequency domain name cache queue. By means of the present invention, caching can be respectively implemented on high-frequency domain names and low-frequency domain names; the access efficiency and a hit rate of a cache of a recursive server can be improved; domain name parsing performance of the recursive server can be improved; and an access frequency threshold value and the sizes of high-frequency and low-frequency domain name LRU caches can be freely customized and set.
Inventors:
LI XIAODONG (CN)
YUCHI XUEBIAO (CN)
PAN LANLAN (CN)
YUCHI XUEBIAO (CN)
PAN LANLAN (CN)
Application Number:
PCT/CN2015/098473
Publication Date:
June 01, 2017
Filing Date:
December 23, 2015
Export Citation:
Assignee:
CHINA INTERNET NETWORK INFORMATION CT (CN)
International Classes:
H04L29/12
Foreign References:
| CN104468244A | 2015-03-25 | |||
| CN104639366A | 2015-05-20 | |||
| CN104935683A | 2015-09-23 | |||
| US7523193B2 | 2009-04-21 |
Attorney, Agent or Firm:
BEIJING JOYSHINE INTELLECTUAL PROPERTY OFFICE (CN)
Download PDF: