CN109831325B - Server switching system and method for re-judgment - Google Patents
Server switching system and method for re-judgment Download PDFInfo
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Abstract
The invention belongs to the technical field of communication control, and discloses a server switching system and a method for re-judgment.A re-judgment service system is accessed to N main servers and an auxiliary server, each main server is connected with an associated re-judgment unit, the auxiliary server is connected with all the re-judgment units, the re-judgment units exchange heartbeat information with the associated main servers, and judge whether the associated main servers are in a fault state according to the heartbeat information; if the fault state is judged, the re-judging unit sends fault information to the auxiliary server; and switching the auxiliary server and the main server in the fault state according to the fault information. The invention solves the problem that the continuous operation of the re-judgment service system is difficult to guarantee in the prior art, and can guarantee the re-judgment service system to work durably, stably and reliably.
Description
Technical Field
The present invention relates to the field of communication control technologies, and in particular, to a server switching system and method for re-judgment.
Background
And the re-judgment service system is used for manually re-checking the liquid crystal screen after intelligent detection, correcting the products which are missed to be checked and over-checked in the intelligent detection and feeding back the quality of the current liquid crystal product. In the existing re-judgment service system, a plurality of line bodies simultaneously correspond to one server, one server corresponds to a plurality of clients, and the main task of the server is to distribute task data from the line bodies to each client according to a preset rule. The above structure has some disadvantages, during the operation period of the re-judging service system, the server may be stopped due to downtime or uncontrollable factors, which leads to the paralysis of the whole re-judging service system, and this will cause great influence on the whole production.
However, the termination of the server due to the error is usually unavoidable. Therefore, the relevant management personnel is usually scheduled to perform regular monitoring, and once the service is found to be unavailable, the management personnel can immediately perform processing and debugging. There are also problems with this solution, such as timeliness, which is not possible to monitor for 24 hours by human, once an error occurs late at night; for example, if the processing time is not controllable, the termination time of the whole service system will be very long if the error causes very complicated reasons and the debugging is very difficult. In addition, during the debugging process, permanent breakdown of the system may also occur due to human misoperation. On the other hand, the labor costs are also very expensive to equip the operators in order to maintain high availability of the system. Therefore, the method is important to ensure the fault tolerance and the uninterrupted performance of the whole re-judgment service system. How to ensure the uninterrupted operation of the whole re-judgment service system and achieve the purpose of lasting, stable and reliable work is a problem which needs to be solved urgently at present.
Disclosure of Invention
The embodiment of the application provides a server switching system and method for re-judgment, and solves the problem that the uninterrupted operation of a re-judgment service system is difficult to guarantee in the prior art.
The embodiment of the application provides a server switching method for re-judgment.A re-judgment service system is accessed to N main servers and one auxiliary server, each main server is connected with an associated re-judgment unit, and the auxiliary server is connected with all the re-judgment units; n is an integer greater than or equal to 1;
the re-judgment unit exchanges heartbeat information with the associated main server and judges whether the associated main server is in a fault state or not according to the heartbeat information; if the fault state is judged, the re-judging unit sends fault information to the auxiliary server; and switching the auxiliary server and the main server in the fault state according to the fault information.
Preferably, after the main server recovers the working state, the associated re-judgment unit sends recovery information to the auxiliary server; and switching the auxiliary server and the main server in the working state according to the recovery information.
Preferably, the re-judging unit comprises a re-judging client;
the re-judgment client sends heartbeat information to an associated main server; if the re-judgment client receives heartbeat information from the main server, continuously sending the heartbeat information; if the re-judgment client does not receive the heartbeat information from the main server after continuously sending the heartbeat information for i times, sending fault information to the auxiliary server;
after the re-judgment client sends the fault information to the auxiliary server, the heartbeat information is continuously sent to the associated main server; and if the re-judgment client establishes heartbeat connection with the main server again, the re-judgment client sends recovery information to the auxiliary server.
Preferably, the complex judgment unit comprises a wire body buffer;
the wire body buffer sends heartbeat information to an associated main server; if the wire body buffer receives heartbeat information from the main server, the heartbeat information is continuously sent; if the heartbeat information from the main server is not received after the heartbeat information is continuously transmitted by the line body buffer for j times, fault information is transmitted to the auxiliary server;
after the line body buffer sends the fault information to the auxiliary server, continuously sending heartbeat information to the associated main server; and if the line body buffer establishes heartbeat connection with the main server again, the line body buffer sends recovery information to the auxiliary server.
Preferably, the re-judging unit includes an API;
the API judges whether the associated main server fails through CPC; if the CPC successfully writes the picture into the main server, continuing to send the data stream; if the CPC does not write the pictures into the main server, judging that the main server has faults, and sending fault information to the EDC, wherein the EDC transmits the fault information to the auxiliary server through a lighting machine and a line buffer.
Preferably, the auxiliary server sends the recovery information of the main server to the line body buffer, the line body buffer transmits the recovery information to the CPC through the lighting machine and the EDC, the CPC checks whether the main server recovers, if the check is correct, the CPC feeds back checking information to the auxiliary server, and the auxiliary server stops checking the API.
Preferably, after receiving the fault information from any one location, the auxiliary server obtains a main server associated with the fault information, and sends first checking information to a re-judgment unit associated with the main server; a re-judgment client, a wire body buffer and an API in the re-judgment unit check the main server and send first check feedback information to the auxiliary server; and the auxiliary server analyzes the received first checking feedback information, and if the number of the faults obtained by analysis is greater than a preset value, the auxiliary server informs the main server of switching the re-judgment unit associated with the main server to the auxiliary server.
Preferably, after receiving the recovery information from any one location, the auxiliary server obtains the main server associated with the recovery information, and sends second checking information to the re-judgment unit associated with the main server; a re-judgment client, a wire body buffer and an API in the re-judgment unit check the main server and send second checking feedback information to the auxiliary server; and the auxiliary server analyzes the received second checking feedback information, and if all the ports are recovered to be normal after analysis, the auxiliary server informs a re-judgment unit associated with the main server to switch back to the main server.
An embodiment of the present application provides a server switching system for re-judgment, including: n main servers and one auxiliary server; each main server is connected with the associated re-judging unit, and the auxiliary server is connected with all the re-judging units; the re-judgment unit comprises a re-judgment client, a wire body buffer and an API; wherein N is an integer of 1 or more.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
in the embodiment of the present application, the re-judgment service system accesses N main servers (N is an integer greater than or equal to 1) and one auxiliary server, each main server is connected to an associated re-judgment unit (including a re-judgment client, a wire body buffer, and an API), and the auxiliary server is connected to all the re-judgment units. Namely, each line body and each re-judgment client communicate with the associated main server and the auxiliary server. Taking a single re-judgment client as an example, the re-judgment client actively sends heartbeat information to an associated main server, the main server feeds back a response after receiving the heartbeat information of the re-judgment client, and the re-judgment client judges the state of the main server according to whether the re-judgment client receives the feedback of the main server. If the main server is in a normal state, the information of the re-judgment client is only sent to the associated main server; and if the main server is in the fault state, the re-judgment client sends fault information to the auxiliary server. And switching the auxiliary server and the main server in the fault state according to the fault information, and judging the information of the client to start to walk a channel of the auxiliary server. Therefore, the invention can realize the automatic switching between the main server and the auxiliary server, avoid the paralysis of the whole re-judgment service system during the operation of the re-judgment service system, ensure the uninterrupted operation of the whole re-judgment service system, achieve the lasting, stable and reliable work, and save the labor cost.
Drawings
In order to more clearly illustrate the technical solution in the present embodiment, the drawings needed to be used in the description of the embodiment will be briefly introduced below, and it is obvious that the drawings in the following description are one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic diagram of a framework of a server switching system for re-judgment according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a server switching method for re-judgment according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a server failure switching performed by a re-judgment client in a re-judgment server switching method according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a re-judgment client performing server recovery switching in a server switching method for re-judgment according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating that a thread body buffer performs server fault switching in a server switching method for re-judgment according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating that a thread body buffer performs server recovery switching in a server switching method for re-judgment according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a server failover performed by an API in a server switchover method for re-judgment according to an embodiment of the present invention;
fig. 8 is a flowchart illustrating a recovery switching of an API in a server switching method for re-judgment according to an embodiment of the present invention;
fig. 9 is an overall flowchart of server failover in a server switchover method for re-judgment according to an embodiment of the present invention.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
The embodiment provides a server switching system for re-judgment, which adopts an N +1 mode and comprises N main servers and one auxiliary server. The N main servers are respectively connected with the associated line bodies and the clients, and one auxiliary server is connected with all the line bodies and the clients. As shown in fig. 1, three main servers, i.e., a server a, a server B, and a server C, are connected to their respective servers, i.e., their respective clients, and a server D is connected to all the servers, i.e., clients, as an auxiliary server.
Each re-judgment unit (comprising a re-judgment client, a wire body buffer and an API) is communicated with two IPs and a server, one is communicated with the associated main server, and the other is communicated with the auxiliary server. For example, the "production line body 1" in fig. 1 communicates with both the main server a and the auxiliary server D, in a normal case, the information of the production line body 1 is only sent to the main server a, and when it is determined that the main server a is damaged, the information of the production line body 1 starts to go through the auxiliary server D, and the case of re-judging the client is similar to the implementation manner of the production line body. The auxiliary server D is in communication connection with all production lines (including a line buffer for caching product materials and an API for generating the most original resources required for re-judgment) and the re-judgment client.
The fast switching of the server is mainly completed in four aspects: firstly, determining that the server is actually disconnected or damaged; secondly, rapidly replacing a server circuit; thirdly, rapidly restoring the repaired server; and fourthly, processing abnormal conditions, such as: how to handle the already inbound task, from what location in the production line to take into account exception handling, etc.
The server-associated portion includes: the re-judgment client, the wire body buffer (or EDC) and the API mainly judge whether the server is currently disconnected or not through the three parties so as to determine whether the server needs to be switched or not. After the server is repaired, all the parts related to the server are automatically switched to the repaired server communication line, and the flow is shown in fig. 2.
The operation principle between the above-mentioned parts and the server will be explained below.
First, judging client and server
(1) Server failover
Each re-judgment client establishes communication connection with two servers, for example, one main server a and one auxiliary server D, the re-judgment client actively sends a heartbeat packet to the main server a, the main server a receives the heartbeat of the re-judgment client and sends a corresponding response to the main server a, the re-judgment client judges whether the current connection is likely to be disconnected according to whether the heartbeat of the main server a is received, under normal conditions, the heartbeat is not interrupted, after abnormal heartbeat monitoring occurs, the re-judgment client sends the heartbeat again (the number of times can be set) for monitoring, when the multiple monitoring is abnormal, the re-judgment client initiates disconnection notification to the auxiliary server D, the latter things are managed and controlled by the auxiliary server D, and the flow is shown in fig. 3.
(2) Server resume handoff
After the damaged main server a is repaired, the damaged main server a needs to be quickly used and all functions of the server borne by the auxiliary server D are received. After the re-judging system client re-establishes heartbeat connection with the main server a, the main server a representing the damage is repaired, the auxiliary server D needs to return the mission to the main server a, the re-judging client needs to process the fact that the message that the main server a is normally connected is sent to the auxiliary server D, the latter logic is managed and controlled by the auxiliary server D, and the flow is shown in fig. 4.
Second, line buffer and re-judgment system server
(1) Server failover
Similar to the requirement of a re-judgment client, the line body buffer establishes communication connection with two servers, one main server a and one auxiliary server D, the line body buffer actively sends a heartbeat packet to the main server a, the main server a receives the heartbeat of the client and sends a corresponding response, the line body buffer judges whether the line is likely to be disconnected according to whether the heartbeat of the main server a is received, under normal conditions, the heartbeat is not interrupted, after abnormal heartbeat monitoring occurs, the line body buffer sends the heartbeat again (the frequency can be set) for monitoring, when the multiple monitoring is abnormal, the line body buffer initiates disconnection notification to the auxiliary server D, the following logic is managed and controlled by the auxiliary server D, and the flow is shown in fig. 5.
(2) Server resume handoff
Similar to the re-judging client, after the damaged main server a is repaired, the damaged main server a needs to be used quickly and then all functions of the server borne by the auxiliary server D are performed. After the line body buffer reestablishes heartbeat connection with the main server a, the damaged main server a is repaired, the auxiliary server D needs to return the mission to the main server a, the line body buffer needs to process the fact that the message that the main server a is normally connected is sent to the auxiliary server D, the following logic is managed and controlled by the auxiliary server D, and the flow is shown in fig. 6.
Third, API (liquid crystal panel optical automatic detection line) and server
(1) Server failover
The interaction between the API and the server is embodied in the storage function of the resource, and the part needs a CPC (part of the API for defect generation) to determine whether the server has the problems of disconnection, disk damage or power failure, and the like, and is mainly embodied in that (image and defect files) the resource can be successfully written in, when an abnormality occurs, the CPC notifies an EDC (external device integrated control system including logic control and motion control) of the abnormality, and then the EDC transmits the information to an auxiliary server D through a lighting machine and a cable body buffer, and the subsequent process is performed by the auxiliary server D as shown in fig. 7.
(2) Server resume handoff
After the damaged main server A is repaired, whether the main server A is repaired or not is judged by the line body buffer or the re-judgment client, after the repair is judged, the auxiliary server D informs the API through the line body buffer, the API performs a checking action, if the API is checked, the API feeds back the result to the auxiliary server D, then the auxiliary server D performs unified flow management and control, the main server A is switched to the damaged and repaired main server A, and the flow is as shown in fig. 8.
The global management of the secondary server is explained below.
In the whole process of fast switching the servers, the auxiliary server D takes important functions, and needs to manage and control the whole logic flow, and the auxiliary server D needs to master the whole situation no matter whether the server is replaced or restored.
(1) Server failover
After the auxiliary server D receives the failure information (abnormal information) of any one of the locations (re-judging client, line body buffer, API), the auxiliary server D counts all the line bodies and client sides (re-judging client, line body buffer, API) associated with the main server a that may have a problem for the first time, then notifies all the line bodies and client sides associated with the main server a to perform checking, performs statistical analysis according to each checked information, when the number of the clients or line bodies that have a problem is counted is greater than a preset value (for example, half of the total number), the auxiliary server D notifies all the ports associated with the main server a to perform server switching, and the auxiliary server D takes over the work of all the main servers a, wherein all the tasks of the main server a that has a failure before notify all the ports to perform abandon processing. For the processing of the abnormal condition, the API automatic detection result is taken as a standard, after the master control server is judged to be broken, all the API automatic results are directly discharged, and all the API automatic results are normally judged by the auxiliary server. The overall flow is shown in fig. 9.
(2) Server resume handoff
After the auxiliary server D receives the repair information of any one main server A (a re-judging client, a line body buffer and an API), the auxiliary server D counts all line bodies and client sides (the re-judging client, the line body buffer and the API) associated with the main server A at the first time, then informs all line bodies and client sides associated with the main server A to check, wherein any port is not recovered to be normal, the recovery operation of the main server A cannot be performed, and when all ports are detected to be normal, a server recovery process is directly performed; in its recovery flow, the already existing secondary server D task continues to execute until completion.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. A server switching method for re-judgment is characterized in that a re-judgment service system is accessed to N main servers and an auxiliary server, each main server is connected with a related re-judgment unit, and the auxiliary server is connected with all the re-judgment units; n is an integer greater than or equal to 1;
the re-judgment unit exchanges heartbeat information with the associated main server and judges whether the associated main server is in a fault state or not according to the heartbeat information; if the fault state is judged, the re-judging unit sends fault information to the auxiliary server; according to the fault information, the auxiliary server and the main server in the fault state are switched;
the auxiliary server obtains a main server associated with the fault information after receiving the fault information from any one position, and sends first checking information to a re-judgment unit associated with the main server; the re-judgment unit checks the main server and sends first checking feedback information to the auxiliary server; and the auxiliary server analyzes the received first checking feedback information, and if the number of the faults obtained by analysis is greater than a preset value, the auxiliary server informs the main server of switching the re-judgment unit associated with the main server to the auxiliary server.
2. The server switching method for reevaluation of claim 1, wherein after the primary server recovers the operating state, the associated reevaluation unit sends recovery information to the secondary server; and switching the auxiliary server and the main server in the working state according to the recovery information.
3. The server switching method for reeducation according to claim 2, wherein the reeducation unit comprises a reeducation client;
the re-judgment client sends heartbeat information to an associated main server; if the re-judgment client receives heartbeat information from the main server, continuously sending the heartbeat information; if the re-judgment client does not receive the heartbeat information from the main server after continuously sending the heartbeat information for i times, sending fault information to the auxiliary server;
after the re-judgment client sends the fault information to the auxiliary server, the heartbeat information is continuously sent to the associated main server; and if the re-judgment client establishes heartbeat connection with the main server again, the re-judgment client sends recovery information to the auxiliary server.
4. The server switching method for reassuring according to claim 2, wherein the reassuring unit comprises a wire body buffer;
the wire body buffer sends heartbeat information to an associated main server; if the wire body buffer receives heartbeat information from the main server, the heartbeat information is continuously sent; if the heartbeat information from the main server is not received after the heartbeat information is continuously transmitted by the line body buffer for j times, fault information is transmitted to the auxiliary server;
after the line body buffer sends the fault information to the auxiliary server, continuously sending heartbeat information to the associated main server; and if the line body buffer establishes heartbeat connection with the main server again, the line body buffer sends recovery information to the auxiliary server.
5. The server switching method for reeducation according to claim 2, wherein the reeducation unit comprises an API;
the API judges whether the associated main server fails through CPC; if the CPC successfully writes the picture into the main server, continuing to send the data stream; if the CPC does not write the pictures into the main server, judging that the main server has faults, and sending fault information to the EDC, wherein the EDC transmits the fault information to the auxiliary server through a lighting machine and a line buffer.
6. The server switching method for redudging according to claim 5, wherein the auxiliary server sends recovery information of the main server to the wirebody buffer, the wirebody buffer transmits the recovery information to the CPC through the lighting engine and the EDC, the CPC checks whether the main server is recovered, and if the check is correct, the CPC feeds back check information to the auxiliary server and closes the check of the auxiliary server on the API.
7. The server switching method for re-judgment according to claim 1, wherein after receiving the first checking information, a re-judgment client, a linear body buffer, and an API in the re-judgment unit check the main server.
8. The server switching method for reevaluation of claim 1, wherein the secondary server obtains a primary server associated with the recovery information after receiving the recovery information from any one location, and sends second checking information to a reevaluation unit associated with the primary server; a re-judgment client, a wire body buffer and an API in the re-judgment unit check the main server and send second checking feedback information to the auxiliary server; and the auxiliary server analyzes the received second checking feedback information, and if all the ports are recovered to be normal after analysis, the auxiliary server informs a re-judgment unit associated with the main server to switch back to the main server.
9. A server switching system for redudging, for implementing the server switching method for redudging according to any one of claims 1 to 8, comprising: n main servers and one auxiliary server; each main server is connected with the associated re-judging unit, and the auxiliary server is connected with all the re-judging units; the re-judgment unit comprises a re-judgment client, a wire body buffer and an API; wherein N is an integer of 1 or more.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567889A (en) * | 2003-06-25 | 2005-01-19 | 华为技术有限公司 | A method of automatic primary standby equipment switching |
| CN202004776U (en) * | 2011-01-07 | 2011-10-05 | 北京捷世伟业电子科技有限公司 | Redundant hot swapping system |
| CN104657382A (en) * | 2013-11-21 | 2015-05-27 | 阿里巴巴集团控股有限公司 | Method and device for detecting consistency of data of MySQL master and slave servers |
| EP2922331A1 (en) * | 2012-11-13 | 2015-09-23 | ZTE Corporation | Method and system for performing dual-homing automatic switching decision according to the number of registered gateways |
| CN107426021A (en) * | 2017-07-19 | 2017-12-01 | 北京锐安科技有限公司 | Construction method, device and the redundant system of redundant system |
| CN107911238A (en) * | 2017-11-13 | 2018-04-13 | 郑州云海信息技术有限公司 | One kind is based on IPSAN servers two unit standby method and system |
-
2019
- 2019-01-22 CN CN201910058151.5A patent/CN109831325B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567889A (en) * | 2003-06-25 | 2005-01-19 | 华为技术有限公司 | A method of automatic primary standby equipment switching |
| CN202004776U (en) * | 2011-01-07 | 2011-10-05 | 北京捷世伟业电子科技有限公司 | Redundant hot swapping system |
| EP2922331A1 (en) * | 2012-11-13 | 2015-09-23 | ZTE Corporation | Method and system for performing dual-homing automatic switching decision according to the number of registered gateways |
| CN104657382A (en) * | 2013-11-21 | 2015-05-27 | 阿里巴巴集团控股有限公司 | Method and device for detecting consistency of data of MySQL master and slave servers |
| CN107426021A (en) * | 2017-07-19 | 2017-12-01 | 北京锐安科技有限公司 | Construction method, device and the redundant system of redundant system |
| CN107911238A (en) * | 2017-11-13 | 2018-04-13 | 郑州云海信息技术有限公司 | One kind is based on IPSAN servers two unit standby method and system |
Non-Patent Citations (2)
| Title |
|---|
| 基于AOIde LCD线路缺陷检测系统;李昌海;《中国优秀硕士学位论文》;20160603;1-9 * |
| 智能配电监控系统的实现及应用研究;孙荣博;《中国优秀硕士学位论文》;20130426;1-9 * |
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