CN109688023A - A method of the CDN monitoring availability disposed in a manner of anycast - Google Patents
A method of the CDN monitoring availability disposed in a manner of anycast Download PDFInfo
- Publication number
- CN109688023A CN109688023A CN201811475616.9A CN201811475616A CN109688023A CN 109688023 A CN109688023 A CN 109688023A CN 201811475616 A CN201811475616 A CN 201811475616A CN 109688023 A CN109688023 A CN 109688023A
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- Prior art keywords
- cdn
- node
- detection
- cdn node
- availability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/069—Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/16—Threshold monitoring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention provides a kind of methods of CDN monitoring availability disposed in a manner of anycast, the following steps are included: step 1: choosing the availability of probe node detection purpose CDN node, at least there are two the detection datas of sensing point to reach for each purpose CDN node；Step 2: according to detection log in purpose CDN node, obtaining the probe node for reaching this CDN node；Step 3: judging the probe node quantity N that purpose CDN node reaches in certain time, if meet N < 1, if then judging that this purpose CDN is unavailable；If being otherwise transferred to step 4；Step 4: judging whether N meets N >=2, if being then transferred to step 5, if otherwise outputting alarm；Step 5: judging that the probe node that purpose CDN node is reached in certain time judges the purpose CDN node for not available probability n, the availability of purpose CDN node；The present invention improves the accuracy of monitoring by two-way analysis.
Description
Technical field
The present invention relates to a kind of methods of CDN node monitoring availability, and in particular to a kind of to be disposed in a manner of anycast
The method of CDN monitoring availability.
Background technique
The detection method of existing CDN availability is detecting generally by the availability of some sensing point testing goal CDN
To when failure, it is believed that purpose CDN is unavailable；It is obtaining the result is that inaccurate for the CDN monitoring disposed in a manner of anycast
's；Because the detection data that multiple sensing points issue not necessarily reaches all purpose CDN；Detection data is caused not reach
CDN is practically without to be monitored and arrive.
Summary of the invention
The present invention provides one kind by two-way analysis, improves the CDN prison of monitoring accuracy disposed in a manner of anycast
The method for controlling availability.
The technical solution adopted by the present invention is that: a method of the CDN monitoring availability disposed in a manner of anycast, packet
Include following steps:
Step 1: choosing the availability of probe node detection purpose CDN node, at least there are two sensing points for each purpose CDN node
Detection data can reach, detection result is stored；
Step 2: according to detection log in purpose CDN node, the probe node for reaching this CDN node is obtained, by detection result
Storage；
Step 3: the detection data obtained according to step 1 and step 2 judges the detection that purpose CDN node reaches in certain time
Number of nodes N, if meet N < 1, if then judging that this purpose CDN is unavailable；If being otherwise transferred to step 4；
Step 4: judging whether N meets N >=2, if being then transferred to step 5, if otherwise outputting alarm；
Step 5: according to step 1 and step 2 obtain as a result, judge in certain time reach purpose CDN node probe node
Judge the purpose CDN node for not available probability n.
Step 6: judging that this purpose CDN node is available if n meets given threshold, this purpose CDN is saved if otherwise judging
Point is unavailable, completes the monitoring of CDN node.
Further, comprising the following steps: assuming that in the available situation of purpose CDN node, according to step 1 and step 2
Obtained detection data obtains the mapping relations of purpose CDN node and probe node.
Further, the method for probe node detection purpose CDN node availability is as follows in the step 1:
S1: the IP information of purpose CDN node is obtained；
S2: http detection is carried out to IP information, judges whether purpose CDN can be used.
Further, as follows to IP information progress http detection process in the S2:
Time-out time is set, if detection time-out or return report an error, this purpose CDN node is unavailable；By repeatedly detecting, if greatly
In 50% probability detection result be it is unavailable, then determine that this purpose CDN node is unavailable.
(1) present invention guarantees that each destination node has sensing point arrival, substantially increases monitoring by two-way analysis
Accuracy；
(2) present invention can obtain purpose CDN node and the network of sensing point is hinted obliquely at, and increase to the intuitive of network path
Solution.
Detailed description of the invention
Fig. 1 is flow diagram of the present invention.
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments.
A kind of method for the CDN monitoring availability disposed in a manner of anycast as shown in Figure 1:, comprising the following steps:
Step 1: choosing the availability of probe node detection purpose CDN node, at least there are two sensing points for each purpose CDN node
Detection data can reach, detection result is stored.
According to existing resource, each main cities, different operators deployment locator (are chosen multiple main as far as possible at home
City covers multiple operators), every the availability of the purpose CDN node of detection in one minute；Guarantee when selection every
A purpose CDN node must have the detection data of at least two sensing points that can reach (by checking that log judges in purpose CDN
Whether sensing point arrival is had)；The data detected are each single-point detections as a result, detection data is stored in database, for dividing
The data united analysis that analysis program summarizes each node.
The process for detecting purpose CDN node availability is as follows:
All IP information of purpose CDN node are obtained, http detection then is carried out to each IP, the side head of http can be used
Method is detected, and time-out time is arranged based on experience value, if detection time-out or return report an error, then it is assumed that this time purpose CDN section
Point is unavailable；It is generally necessary to repeatedly detected, it is all unavailable if it is greater than 50% probability detection, then it is assumed that this purpose CDN section
Point is unavailable.
Step 2: according to detection log in purpose CDN node, obtaining the probe node for reaching this CDN node, will detect
As a result it stores.
The program of user access logs analysis is disposed in all purpose CDN nodes, which analysis purpose CDN node has
The detection log of sensing point；The probe node for reaching this purpose CDN node is analyzed from log, and detection data is deposited into number
According in library.
Step 3: the detection data obtained according to step 1 and step 2 judges purpose CDN node arrival in certain time
Probe node quantity N, if meet N < 1, if then judging that this purpose CDN is unavailable；If being otherwise transferred to step 4.
The number for the probe node that each purpose CDN node reaches per minute is analyzed as unit of minute, if detection section
It is unavailable that the quantity N of point alerts this purpose CDN less than 1；If being otherwise transferred to step 4.
Step 4: judging whether N meets N >=2, if being then transferred to step 5, if otherwise outputting alarm；
If the quantity N of probe node, less than 2, alarm notification needs to increase the number of probe node, if being otherwise transferred to step
5。
Step 5: according to step 1 and step 2 obtain as a result, judge in certain time reach purpose CDN node detection
Node judges the purpose CDN node for not available probability n；This purpose CDN node is judged if n meets given threshold for can
With if otherwise judging, this purpose CDN node is unavailable, completes the monitoring of CDN node.
Whether the probe node that analysis reaches each purpose CDN node as unit of minute has 50% or more to judge this purpose
CDN node is unavailable；If it exceeds 50% to alert this purpose CDN unavailable；The threshold value of alarm is that the period analyzed can be with
It modifies according to the actual situation.
Assuming that in the available situation of purpose CDN node, obtained data are detected according to step 1 and step 2, it is available
The network mapping relationship of purpose CDN and probe node；Network path can be got information about by network mapping relationship.
Term mentioned in the present invention is as follows:
CDN: content distributing network improves the response speed that user accesses website.
Anycast: the multiple as numbers of utilization identical one IP sections, i.e. different server phase in different Regional broadcasts
Same IP address.
The present invention selects the sensing point of M different location first, guarantees that each purpose CDN node has at least two sensing points
Can reach (when preventing only one probe node, if this probe node link goes wrong, causes detection less than purpose
CDN node)；The data summarization detected is analyzed to central server；Pass through log point in purpose CDN node simultaneously
Analysis, the probe node information reached are sent to central server；Central server according to the detection data of probe node and
Whether the log analysis data of purpose CDN node, the purpose CDN disposed in a manner of anycast by two-way analytical judgment can be used；
According to the real time monitoring that may be implemented to purpose CDN；And the network mapping that can provide probe node and purpose CDN node is closed
System.
The present invention is solved since traditional CDN monitor mode may cause the anycast that probe node does not reach
The purpose CDN node that mode is disposed leads to the problem of the result inaccuracy of monitoring；By the method for two-way analysis, guarantee each
Purpose CDN node has probe node arrival, substantially increases the accuracy of monitoring；And mesh can be obtained according to detection data
CDN node and detection reception between network mapping relationship, increase the intuitive understanding to network path.
Claims (4)
1. a kind of method for the CDN monitoring availability disposed in a manner of anycast, which comprises the following steps:
Step 1: choosing the availability of probe node detection purpose CDN node, at least there are two sensing points for each purpose CDN node
Detection data can reach, detection result is stored；
Step 2: according to detection log in purpose CDN node, the probe node for reaching this CDN node is obtained, by detection result
Storage；
Step 3: the detection data obtained according to step 1 and step 2 judges the detection that purpose CDN node reaches in certain time
Number of nodes N, if meet N < 1, if then judging that this purpose CDN is unavailable；If being otherwise transferred to step 4；
Step 4: judging whether N meets N >=2, if being then transferred to step 5, if otherwise outputting alarm；
Step 5: according to step 1 and step 2 obtain as a result, judge in certain time reach purpose CDN node probe node
Judge the purpose CDN node for not available probability n；
Step 6: judging that this purpose CDN node is available if n meets given threshold, if otherwise judging this purpose CDN node not
It can use, complete the monitoring of CDN node.
2. a kind of method of CDN monitoring availability disposed in a manner of anycast according to claim 1, feature exist
In further comprising the steps of:
Assuming that obtaining purpose CDN section according to the detection data that step 1 and step 2 obtain in the available situation of purpose CDN node
The mapping relations of point and probe node.
3. a kind of method of CDN monitoring availability disposed in a manner of anycast according to claim 1, feature exist
In the method for probe node detection purpose CDN node availability is as follows in the step 1:
S1: the IP information of purpose CDN node is obtained；
S2: http detection is carried out to IP information, judges whether purpose CDN can be used.
4. a kind of method of CDN monitoring availability disposed in a manner of anycast according to claim 3, feature exist
In as follows to IP information progress http detection process in the S2:
Time-out time is set, if detection time-out or return report an error, this purpose CDN node is unavailable；By repeatedly detecting, if greatly
In 50% probability detection result be it is unavailable, then determine that this purpose CDN node is unavailable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475616.9A CN109688023B (en) | 2018-12-04 | 2018-12-04 | Method for monitoring availability of CDN (content delivery network) deployed in anycast mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475616.9A CN109688023B (en) | 2018-12-04 | 2018-12-04 | Method for monitoring availability of CDN (content delivery network) deployed in anycast mode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109688023A true CN109688023A (en) | 2019-04-26 |
| CN109688023B CN109688023B (en) | 2021-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811475616.9A Active CN109688023B (en) | 2018-12-04 | 2018-12-04 | Method for monitoring availability of CDN (content delivery network) deployed in anycast mode |
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Citations (6)
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|---|---|---|---|---|
| CN102347864A (en) * | 2011-11-02 | 2012-02-08 | 网宿科技股份有限公司 | System and method for monitoring service quality of content distribution networks |
| CN103428011A (en) * | 2012-05-16 | 2013-12-04 | 深圳市腾讯计算机系统有限公司 | Node state detection method, system and device used in distributed system |
| CN105071989A (en) * | 2015-07-30 | 2015-11-18 | 世纪龙信息网络有限责任公司 | Video content distribution quality monitoring system and monitoring method therefor |
| EP3205054A1 (en) * | 2014-10-09 | 2017-08-16 | Telefonaktiebolaget LM Ericsson (publ) | Method, traffic monitor (tm), request router (rr) and system for monitoring a content delivery network (cdn) |
| CN107769963A (en) * | 2017-09-29 | 2018-03-06 | 贵州白山云科技有限公司 | A kind of content distributing network Fault Locating Method and device |
| CN107911240A (en) * | 2017-11-14 | 2018-04-13 | 北京知道创宇信息技术有限公司 | A kind of fault detection method and device |
-
2018
- 2018-12-04 CN CN201811475616.9A patent/CN109688023B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347864A (en) * | 2011-11-02 | 2012-02-08 | 网宿科技股份有限公司 | System and method for monitoring service quality of content distribution networks |
| CN103428011A (en) * | 2012-05-16 | 2013-12-04 | 深圳市腾讯计算机系统有限公司 | Node state detection method, system and device used in distributed system |
| EP3205054A1 (en) * | 2014-10-09 | 2017-08-16 | Telefonaktiebolaget LM Ericsson (publ) | Method, traffic monitor (tm), request router (rr) and system for monitoring a content delivery network (cdn) |
| CN105071989A (en) * | 2015-07-30 | 2015-11-18 | 世纪龙信息网络有限责任公司 | Video content distribution quality monitoring system and monitoring method therefor |
| CN107769963A (en) * | 2017-09-29 | 2018-03-06 | 贵州白山云科技有限公司 | A kind of content distributing network Fault Locating Method and device |
| CN107911240A (en) * | 2017-11-14 | 2018-04-13 | 北京知道创宇信息技术有限公司 | A kind of fault detection method and device |
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| CN109688023B (en) | 2021-10-12 |
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Address after: 9/F, Block C, No. 28 Tianfu Avenue North Section, Chengdu High tech Zone, China (Sichuan) Pilot Free Trade Zone, Chengdu City, Sichuan Province, 610000 Patentee after: CHENGDU KNOWNSEC INFORMATION TECHNOLOGY Co.,Ltd. Address before: 610000, 11th floor, building 2, No. 219, Tianfu Third Street, hi tech Zone, Chengdu, Sichuan Province Patentee before: CHENGDU KNOWNSEC INFORMATION TECHNOLOGY Co.,Ltd. |
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