WO2016070530A1

WO2016070530A1 - Method and system for processing operation of primary and standby device

Info

Publication number: WO2016070530A1
Application number: PCT/CN2015/073275
Authority: WO
Inventors: 杨青海; 毕忠良; 杨骐; 尹旺中; 陈宗立; 朱田
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-11-04
Filing date: 2015-02-25
Publication date: 2016-05-12
Also published as: CN105634779A; CN105634779B

Abstract

Provided are a method and system for processing operation of a primary and a standby device. The method comprises: after determining that a primary device is out of contact with a first standby device, detecting, by a primary device, link connectivity between the primary device and other devices; meanwhile, detecting, by the first standby device, link connectivity between the first standby device and other devices, wherein the other devices are devices, except the primary device and the standby device, in a cluster system where the primary device and the first standby device are located; processing, by the primary device, operation of the primary device and/or the first standby device according to a detection result of the link connectivity; and processing, by the first standby device, the operation of the primary device and/or the first standby device according to the detection result of the link connectivity. By means of the technical solution, the problem in the related art that system stability is reduced due to the fact that a node failure or a link failure are not distinguished is solved, thereby achieving the effect of enhancing the system stability.

Description

Operation and processing method and system for active and standby equipment

Technical field

The present invention relates to the field of communications, and in particular to a method and system for processing an active/standby device.

Background technique

In a cluster system, the general bearer is usually configured in the form of a primary device and a standby device. Among them, the primary device mainly performs related functions; and the standby device exists as a backup of the primary device. When the primary device is down, the standby device upgrades the primary device to take over the work of the original primary device, maintaining the uninterrupted service, and when the standby device is down, the primary device reselects the new standby device. Based on the above technical solution, the stability of the system in which the primary device and the spare red bay are synergistically enhanced.

In the prior art, heartbeat messages are generally used for keepalive between the primary device and the backup device of the cluster system. When the primary device and the standby device are inactive, the node cannot be identified as a node fault or a link fault. As a result, the active device and the standby device are in the wrong path. If the threshold is not exceeded, the heartbeat packet of the peer cannot be received. , it is considered that the other party has an abnormality, and the standby device is started to upgrade to the primary device or re-select the standby device. However, when the keep alive link between the active device and the standby device flashes and recovers, the system may evolve into a "dual master" (that is, the standby device also switches to the primary device, but the original primary device is still still Running). At present, in the related technologies on the market, after the dual-master of the cluster device appears, the recovery is generally performed by the restart of the reforming system, but this will reduce the stability of the system and make the user experience poor.

In the related art, after the primary device and the standby device are disconnected, since the node failure or the link failure cannot be distinguished, the standby device directly converts to the primary device, causing the two primary devices to operate in the system, reducing The stability of the system makes the user experience poor, and no effective solution has been proposed.

Summary of the invention

In order to solve the above technical problem, the present invention provides a method and system for processing an active/standby device.

According to an embodiment of the present invention, a method for processing an active/standby device includes: after determining that the primary device and the first standby device are disconnected, the primary device detects the primary device and other devices. Link connectivity, wherein the first standby device detects link connectivity between the first standby device and other devices, where the other device is the cluster device in which the primary device and the first standby device are located. a device other than the primary device and the standby device; the primary device according to the detection result of the link connectivity Processing of the primary device and/or the first standby device, and the first standby device according to the detection result of the link connectivity to the primary device and/or the first standby device Run for processing.

Preferably, the primary device processes the operation of the primary device and/or the first standby device according to the detection result of the link connectivity, and includes: when the primary device detects the chain When the path is connected, the first standby device is replaced with a second standby device; when the primary device detects that the link is not connected, the active device is prohibited from running for a second predetermined time period. .

Preferably, the first standby device processes the operation of the primary device and the first standby device according to the detection result of the link connectivity, including: when the first standby device detects the chain When the road is connected, it is determined whether the primary device is running; when the primary device is not running, the first standby device is used as the primary device.

Preferably, when the primary device is running, the first standby device is prohibited from operating for a third predetermined period of time.

Preferably, determining, by at least one of the following manners, whether the active device is running: notifying by a third party outside the primary device and the first standby device; transmitting a message on the forwarding plane by using the first standby device The specified information of the channel is detected.

Preferably, the first standby device processes the operation of the primary device and the first standby device according to the detection result of the link connectivity, including: when the first standby device detects the chain When the road is not connected, the first standby device is prohibited from operating during the first predetermined time period.

Preferably, determining that the primary device and the first standby device are disconnected, including: when the primary device and/or the first standby device does not receive a keep-alive message, determining the primary device and the The first standby device is disconnected.

According to another embodiment of the present invention, an operating system for an active and standby device is further provided, including: a primary device, configured to detect the primary device and the primary device after determining that the primary device and the first standby device are disconnected Link connectivity of other devices, and processing of the operation of the primary device and/or the first standby device according to the detection result of the link connectivity, wherein the other device is the primary device and The cluster system in which the first standby device is located, except for the primary device and the standby device; the first standby device is configured to detect the primary device and the primary device Detecting link connectivity of the first standby device with other devices, and detecting the primary device and/or the first standby according to the detection result of the link connectivity. The operation of the device is processed.

Preferably, the primary device is further configured to: when the primary device detects that the link is connected, replace the first standby device with a second standby device; and when the primary device detects the When the link is not connected, the active device is prohibited from running during the second predetermined time period.

Preferably, the first standby device is further configured to: when the first standby device detects that the link is connected, determine whether the active device is running; when the primary device is not running, The first standby device is used as a primary device.

According to the present invention, after the primary device and the standby device are disconnected, the primary device and the standby device simultaneously detect the link connectivity between each of the primary device and the standby device, and further detect the link connectivity according to the detected link connectivity. The technical solution for processing the active device and/or the standby device solves the problem that in the related art, after the primary device and the standby device are disconnected, since the node failure or the link failure cannot be distinguished, the standby device is directly converted into the primary device. The use of the device causes two main devices to operate in the system, which reduces the stability of the system and makes the user experience poor, thereby enhancing the stability of the system and improving the user experience.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a flowchart of a method for processing an active/standby device according to an embodiment of the present invention;

2 is a block diagram showing the structure of a cluster system in accordance with a preferred embodiment of the present invention;

3 is a schematic diagram of processing after a master/slave device detects link connectivity according to a preferred embodiment of the present invention;

4 is a structural block diagram of an operation processing system of a master and backup device according to an embodiment of the present invention;

FIG. 5 is another structural block diagram of an operation processing system of a master and backup device according to an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the related art, when the active device and the standby device fail to be inactivated, it is not confirmed that the device is faulty or the link is faulty, and the primary device and the backup device may be evolved according to the wrong path, that is, the standby device directly switches to the primary device. The device, which causes problems with two active devices in the system, provides the following technical solutions.

In order to solve the above technical problem, in this embodiment, a method for processing an active/standby device is provided. FIG. 1 is a flowchart of a method for processing an active/standby device according to an embodiment of the present invention. The process includes the following steps:

Step S102, after determining that the primary device and the first standby device are disconnected, the primary device detects link connectivity between the primary device and the other device, and the first standby device detects the chain of the first standby device and other devices. Road connectivity, wherein the other device is a device other than the primary device and the backup device in the cluster system where the primary device and the first standby device are located;

Step S104: The primary device processes the operation of the primary device and/or the first standby device according to the detection result of the link connectivity, and the first standby device performs the primary usage according to the detection result of the link connectivity. The operation of the device and/or the first standby device described above is processed.

Through the above steps, after the primary device and the standby device are disconnected, the primary device and the standby device simultaneously detect the link connectivity between each of the primary device and the standby device, and further detect the link connectivity according to the detected link connectivity. The technical solution for processing the primary device and/or the standby device is that after the primary device and the backup device are disconnected, since the node failure or the link failure cannot be distinguished, the backup device is directly converted into the primary device. The two main devices operate in the system, which reduces the stability of the system and makes the user experience poor, thereby enhancing the stability of the system and improving the user experience.

For the technical solution embodied in step S104, the embodiment of the present invention can be embodied in the following aspects:

(1) The primary device processes the operation of the primary device and/or the first backup device according to the detection result of the link connectivity, and includes: when the primary device detects that the link is connected, And replacing the first standby device with the second standby device; when the primary device detects that the link is not connected, prohibiting the active device from running for a second predetermined time period.

(2) The first standby device processes the operation of the primary device and the first backup device according to the detection result of the link connectivity, and includes: when the first standby device detects that the link is connected, determining Whether the above-mentioned primary device is running; when the primary device is not running, the first standby device is used as a primary device, and when the primary device is running, the first is prohibited for a third predetermined time period The standby device is running.

(3) The first backup device processes the operation of the primary device and the first backup device according to the detection result of the link connectivity, and includes: when the first standby device detects that the link is not connected, The first standby device is prohibited from operating during the first predetermined time period.

It should be noted that, in the above (1)-(3), the primary device processes the operation of the primary device and/or the standby device according to the link connectivity, and the standby device uses the primary device according to the link connectivity. / The process of processing the standby equipment can be combined and judged. The judgment process of the primary equipment and the judgment process of the standby equipment are not contradictory, and the two processes can coexist.

In fact, after the primary device and the backup device are disconnected, the primary device side and the standby device side simultaneously detect the connectivity of the link, and when the primary device detects the connectivity of the link, when the primary device detects the above When the link is connected, the primary device replaces the first standby device with the second standby device, that is, the link does not fail, but the primary device and the backup device still lose connectivity, indicating that the first standby device exists. The fault needs to be replaced with the second standby device; when the primary device detects that the link is not connected, the active device is prohibited from running for the second predetermined time period.

The standby device determines whether the active device is running in multiple manners. In an optional example of the embodiment of the present invention, determining whether the primary device is running by using at least one of the following: A third party outside the standby device informs; the specified information of the message transmission channel on the forwarding plane is detected by the first standby device.

Optionally, in step S102, determining that the primary device and the first standby device are disconnected by performing the following process: when the primary device and/or the first standby device does not receive the keep-alive message, determining the foregoing The primary device and the first standby device are disconnected.

In summary, the primary device and the standby device calculate the connectivity of the link based on the connectivity with other devices in the system. The connectivity value is TURE(T), indicating the relationship between the primary device and the backup device. The link is connected, or FALSE(F), indicating that the link between the primary device and the standby device is not connected.

In addition, the two-way keep-alive and two-way detection are used between the active device and the standby device to ensure that the two ends of the link are aware of the state change of the keep-alive link at the same time. If the keep-alive fails in either direction, it is determined that the primary device and the standby device are disconnected.

The foregoing technical solution provided by the embodiment of the present invention: after the primary device and the standby device are disconnected, the active and standby devices calculate connectivity of the link, and the following four situations may occur in the calculation result, as shown in Table 1 below:

Table I

	主(T)Master (T)	主(F)Main (F)
	主(T)Master (T)	主(F)Main (F)	备(T)Preparation (T)	TTTT	FTFT

Preparation (F)

TF

FF

The following four cases are briefly described:

a) TT, the connectivity detection of the active and standby devices is TURE(T);

The primary device selects a new standby device. The standby device detects whether the primary device is in position through the third-party mechanism. If the primary device is running, the standby device is suspended for a preset period of time. The detection result is the primary device. The standby device is switched to the primary device when it is not running.

b) FT, the primary device connectivity detection is FALSE (F), the standby device connectivity detection is TURE (T);

The primary device is suspended for a preset period of time; the standby device detects whether the primary device is running through the third-party mechanism. If the primary device is running, the standby device is suspended. If the primary device is not running, the backup device is switched to Main equipment.

c) TF, the primary device connectivity detection is TURE(T), and the standby device connectivity detection is FALSE(F);

The primary device selects a new alternate device; the standby device is suspended.

d) FF, the primary and secondary connectivity tests are FALSE (F);

The primary and backup devices are suspended.

The above four cases can be roughly summarized as: no matter which party detects the connectivity in the primary device and the standby device is FASLE (F), all of which are suspended during the predetermined time period; no matter which party detects the connectivity between the primary device and the standby device It is TURE(T), the primary device selects the new standby device; the standby device detects whether the primary device is running through the 3rd party mechanism, and the detection device is running, then the standby device is suspended, and the detection result is not running. The backup device is switched to the primary device.

In order to better understand the technical solution after the above-mentioned main device and the backup device are disconnected, the following description will be made with reference to the preferred embodiments, but the embodiments of the present invention are not limited:

First, the cluster system of the preferred embodiment of the present invention will be briefly described. As shown in FIG. 2, the cluster system is divided into several devices. For the convenience of description, only three devices are described in FIG. The primary device (master node) and the standby device (by the node) are bi-directionally kept and detected in both directions. The primary device and the standby device perform connectivity detection with other devices (other nodes) in the system.

The primary device and the standby device perform connectivity detection with other devices in the system, and adopt a message-based detection mechanism, which may be, but is not limited to, the following solutions: communication link detection, such as a TCP link, a TIPC link, and the like. The asynchronous message keeps alive, and the above-mentioned solution is a technical means commonly used in the related art, and the embodiment of the present invention will not be described again.

FIG. 3 is a schematic diagram of processing after the active/standby device detects link connectivity according to a preferred embodiment of the present invention. As shown in FIG. 3, the technical solution illustrated in FIG. 3 can be summarized as: mutual heartbeat between the primary device and the standby device. The message, the primary device and the standby device each receive and check the received message. After the active/standby loss is detected by the keep-alive message, the connectivity detection is FASLE(F) to restart itself; the connectivity detection is TRUE(T), if it is the primary device, the new standby device is selected, if it is standby The device detects whether the active device is running through the third-party mechanism. If the primary device is running, the standby device is suspended. If the primary device is not running, the backup device is transferred to the active device.

It should be noted that “in place” in FIG. 3 can be understood as whether it is running, and “suicide” can be understood as not being used within a predetermined time period.

In the embodiment of the present invention, an operational processing system for the active and standby devices is also provided. FIG. 4 is a structural block diagram of an operation processing system for the active and standby devices according to the embodiment of the present invention.

The primary device 40 is configured to detect link connectivity between the primary device 40 and the other device 44 after determining that the primary device 40 and the first backup device 42 are disconnected, and the detection result according to the link connectivity. The operation of the primary device 40 and/or the first standby device 42 is processed, wherein the other devices 44 are in the cluster system where the primary device 40 and the first standby device 42 are located, except the primary device 40 and the first standby device. Equipment other than 42;

The first backup device 42 is configured to detect link connectivity between the first backup device 42 and the other device 44 when the primary device 40 detects link connectivity between the primary device 40 and the other device 44, and according to the chain The detection result of the road connectivity processes the operation of the primary device 40 and/or the first standby device 42.

Through the combined action of the devices in the above system, after the primary device and the standby device are disconnected, the primary device and the standby device simultaneously detect the link connectivity between the primary device and the standby device, and then according to the detected link. The technical solution of the detection of the connectivity of the primary device and/or the standby device is that after the primary device and the backup device are disconnected, since the node failure or the link failure cannot be distinguished, the standby device is directly converted to The main device causes two main devices to operate in the system, which reduces the stability of the system and makes the user experience poor, thereby enhancing the stability of the system and improving the user experience.

Optionally, as shown in FIG. 5, the primary device 40 is further configured to: when the primary device 40 detects that the link is connected, replace the first backup device 42 with the second backup device 46; and when the primary device is When detecting that the link is not connected, the foregoing active device is prohibited from running during the second predetermined time period; the first standby device 42 is further configured. To determine whether the primary device 40 is running when the first backup device 42 detects that the link is in communication, the first standby device 42 is used as the primary device when the primary device 40 is not operating.

In summary, the embodiment of the present invention achieves the following technical effects: the problem of "dual master" caused by direct switching of the standby device in the related art is solved, the actual condition of the keep-alive link is correctly detected, and the system is unified. Evolve the path to avoid the separate evolution of the device to prevent the occurrence of the above-mentioned double main phenomenon and improve the stability of the system.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on this understanding, the technical solution of the present invention, which is essential or contributes to the prior art, can be embodied in the form of a software product stored in a storage medium (such as a read-only memory (Read-Only). Memory, referred to as ROM), Random Access Memory (RAM), disk, CD-ROM, includes a number of instructions to make a terminal device (can be a mobile phone, computer, server, or network device, etc.) The methods described in various embodiments of the invention are performed.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order. It is to be understood that the objects so used are interchangeable, where appropriate, so that the embodiments of the invention described herein can be carried out in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

According to the foregoing technical solution provided by the embodiment of the present invention, after the primary device and the backup device are disconnected, the primary device and the standby device simultaneously detect link connectivity between the primary device and the standby device, and further, according to the detected chain. The technical solution for processing the primary device and/or the standby device is to solve the problem that the primary device and the backup device are disconnected after the primary device and the backup device are disconnected, and the node failure or the link failure cannot be distinguished. The device will directly convert the main device into two. The main device is running in the system, which reduces the stability of the system and makes the user experience worse. This enhances the stability of the system and improves the user experience. effect.

Claims

A method for processing an active/standby device includes:

After determining that the primary device and the first standby device are disconnected, the primary device detects link connectivity between the primary device and the other device, and the first standby device detects the first standby device and other devices. Link connectivity, wherein the other device is a device other than the primary device and the standby device in the cluster system in which the primary device and the first standby device are located;

The primary device processes the operation of the primary device and/or the first standby device according to the detection result of the link connectivity, and the first standby device according to the link connectivity The detection result processes the operation of the primary device and/or the first standby device.
The method of claim 1, wherein the active device processes the operation of the primary device and/or the first standby device according to the detection result of the link connectivity, including:

When the primary device detects that the link is connected, the first standby device is replaced with a second standby device;

When the primary device detects that the link is not connected, the active device is prohibited from running for a second predetermined period of time.
The method according to claim 1, wherein the first standby device processes the operations of the primary device and the first standby device according to the detection result of the link connectivity, including:

When the first standby device detects that the link is connected, determining whether the active device is running;

The first standby device is used as a primary device when the primary device is not operating.
The method of claim 3, wherein

When the primary device is running, the first standby device is prohibited from operating for a third predetermined period of time.
The method according to any one of claims 3 or 4, wherein the primary device is determined to be running by at least one of the following:

Notifying by the third party outside the primary device and the first standby device;

The specified information is detected by the first standby device on the forwarding plane message transmission channel.
The method according to claim 1, wherein the first standby device processes the operations of the primary device and the first standby device according to the detection result of the link connectivity, including:

When the first standby device detects that the link is not connected, the first standby device is prohibited from running for a first predetermined time period.
The method according to any one of claims 1 to 4, wherein determining that the primary device and the first standby device are disconnected comprises:

When the active device and/or the first standby device do not receive the keep-alive message, it is determined that the primary device and the first standby device are disconnected.
An operation processing system for an active and standby device, comprising:

The primary device is configured to detect link connectivity between the active device and the other device after determining that the primary device and the first standby device are disconnected, and to use the detection result of the link connectivity according to the detection result of the link connectivity Processing of the device and/or the first standby device, wherein the other device is a cluster system in which the primary device and the standby device are located, except the primary device and the first standby device External equipment;

The first backup device is configured to detect link connectivity between the first standby device and other devices when the primary device detects link connectivity between the primary device and other devices, and The detection result of the link connectivity processes the operation of the primary device and/or the first standby device.
The system according to claim 8, wherein said primary device is further configured to replace said first standby device with a second standby device when said primary device detects that said link is in communication; When the primary device detects that the link is not connected, the active device is prohibited from running for a second predetermined period of time.
The system according to claim 8, wherein the first standby device is further configured to determine, when the first standby device detects that the link is connected, to determine whether the primary device is running; When the primary device is not running, the first standby device is used as the primary device.