CN109639849B - Address query processing method and service discovery device - Google Patents
Address query processing method and service discovery device Download PDFInfo
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- CN109639849B CN109639849B CN201811625715.0A CN201811625715A CN109639849B CN 109639849 B CN109639849 B CN 109639849B CN 201811625715 A CN201811625715 A CN 201811625715A CN 109639849 B CN109639849 B CN 109639849B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4541—Directories for service discovery
Abstract
The address query processing method and the service discovery device provided by the application server store the addresses of the application servers deployed in the local area and the different areas, acquire the location identification, and send the address of the application server deployed in the location indicated by the location identification to the application client according to the address query request of the application client.
Description
Technical Field
The present application relates to the field of electronic information, and in particular, to an address query processing method and a service discovery apparatus.
Background
As shown in fig. 1, the distributed system includes an Application Service (Application Service), an Application Client (Application Client), and a Service discovery apparatus. An Application Service (Application Service) is generally deployed on a plurality of machines, and registers an address in a Service discovery apparatus. An Application Client (Application Client) needs to communicate with an Application Service (Application Service), and must first obtain an address of the Application Service through a Service discovery device.
That is, a simple service discovery apparatus provides at least the following two basic functions:
firstly, the information registration capability is provided, and after an Application Service (Application Service) is started, the information of the Application Service can be registered in the Service discovery device.
And secondly, providing information acquisition capability, and acquiring a currently registered Application Service address list from the Service discovery device by an Application Client (Application Client).
The remote multi-active Service means that an Application server (Application Service) deployed in both places a and B, and when the Application server (Application Service) of place a is abnormal, the Application Client (Application Client) of place a can normally provide Service by using the Application server (Application Service) of place B.
At present, in order to reduce the influence of a network on Service invocation, an Application Client (Application Client) and an Application Service (Application Service) of a distributed system are generally deployed in a machine room of the same city. In this deployment, the Service discovery apparatus stores only the address of the Application Service (Application Service) in the local (e.g., a-site) room. However, in such a Service discovery device, since the local (e.g., a-site) Application Client (Application Client) can only inquire the address of the Application server (Application Service) in the local (e.g., a-site) room from the Service discovery device, it is not able to support multiple remote services.
Disclosure of Invention
The application provides an address query processing method and a service discovery device, and aims to solve the problem that the existing service discovery device cannot support multi-active services in different places.
In order to achieve the above object, the present application provides the following technical solutions:
an address query processing method, comprising:
storing addresses of application service terminals deployed at local and different places;
the method comprises the steps of obtaining a place identifier, wherein the place identifier is used for indicating local or different places, and the place identifier is a different place identifier under the condition that an application server deployed in the local fails;
and sending the address of the application server deployed at the place indicated by the place identifier to the application client according to the address query request of the application client.
Optionally, before the storing and deploying the address of the local and the remote application server, the method further includes:
receiving a registration request of the locally deployed application server, wherein the registration request comprises an address of the locally deployed application server.
Optionally, storing the address of the locally deployed application server includes:
and correspondingly storing the address of the application server deployed in the local and the local identifier.
Optionally, storing the address of the application server deployed in a different place includes:
and acquiring the corresponding relation between the address of the remote application server and the remote identifier from the discovery service device deployed at the remote place.
Optionally, the acquiring the location identifier includes:
monitoring a configuration file comprising the place identifier, and acquiring the place identifier from the configuration file, wherein the place identifier in the configuration file is set as a remote identifier under the condition that the application server deployed in the local fails, otherwise, the place identifier in the configuration file is set as a local identifier;
or, setting the place identifier as an identifier of a different place under the condition that the application server deployed in the local place fails, otherwise, setting the place identifier as an identifier of a local place.
A service discovery apparatus, comprising:
a discovery server and a discovery client;
the discovery server is used for storing the addresses of the application servers deployed at local places and different places;
the discovery client is used for acquiring a place identifier, wherein the place identifier is used for indicating local or different places, and the place identifier is a different place identifier under the condition that an application server deployed in the local fails;
and the discovery server is further used for sending the address of the application server deployed at the place indicated by the place identifier to the application client according to the address query request of the application client.
Optionally, the discovery client is further configured to:
before the discovery server stores the addresses of the application servers deployed in the local area and the different areas, a registration request of the application server deployed in the local area is received, wherein the registration request comprises the address of the application server deployed in the local area, and the address of the application server deployed in the local area and the location identification are sent to the discovery server.
Optionally, the address, used for storing the locally deployed application server, of the discovery server includes:
the discovery server is specifically configured to correspondingly store the address of the application server deployed in the local area and the identifier in the different area from the local identifier.
Optionally, the address, used for storing the application server deployed in a different place, of the discovery server includes:
the discovery server is specifically configured to obtain a correspondence between an address of the remote application server and a remote identifier from a discovery service device deployed in a remote location.
Optionally, the discovering client is configured to obtain the location identifier, and includes:
monitoring a configuration file comprising the place identifier, and acquiring the place identifier from the configuration file, wherein the place identifier in the configuration file is set as a remote identifier under the condition that the application server deployed in the local fails, otherwise, the place identifier in the configuration file is set as a local identifier;
or, setting the place identifier as an identifier of a different place under the condition that the application server deployed in the local place fails, otherwise, setting the place identifier as an identifier of a local place.
The address query processing method and the service discovery device provided by the application server store the addresses of the application servers deployed in the local area and the different areas, acquire the location identification, and send the address of the application server deployed in the location indicated by the location identification to the application client according to the address query request of the application client.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a distributed system;
fig. 2 is a flowchart of an address query processing method disclosed in an embodiment of the present application;
fig. 3 is a flowchart of another address query processing method disclosed in the embodiment of the present application;
fig. 4 is a schematic logical structure diagram of a service discovery apparatus according to an embodiment of the present application;
fig. 5 is a flowchart of another address query processing method disclosed in the embodiment of the present application;
fig. 6 is a schematic diagram illustrating that a service discovery apparatus supports multiple remote locations according to an embodiment of the present disclosure.
Detailed Description
Technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 2 is a flowchart of an address query processing method, executed by a service discovery apparatus, according to an embodiment of the present application, including the following steps:
s201: and storing the addresses of the application servers deployed at local places and different places.
The application server may be an application server in the distributed system shown in fig. 1, and specific functions and structures may refer to the prior art, which is not described herein again.
In this embodiment, the local deployment location refers to a deployment location of the service discovery apparatus that executes the process shown in fig. 1, and the remote deployment location refers to another deployment location than the deployment location of the service discovery apparatus that executes the process shown in fig. 1.
S202: and acquiring a place identifier.
The location identifier is an identifier of a deployment location of the application server, that is, the location identifier is used for identifying a location where the application server is deployed.
The locations described in this embodiment are divided into local locations and different locations, where as described above, local refers to a deployment location of the service discovery apparatus that executes the process shown in fig. 1, and different locations refers to other deployment locations than the deployment location of the service discovery apparatus that executes the process shown in fig. 1.
The location identification can be location name and other information which can distinguish local and remote locations.
In this embodiment, the manner of obtaining the location identifier may include the following two manners:
1. and monitoring a configuration file, wherein the configuration file comprises a place identifier. The configuration file can be manually configured into the service discovery device, or can be sent to the service discovery device by other equipment after being manually configured. And under the condition that the application server deployed in the local is in fault, manually identifying the place in the configuration file as a mark in a different place, otherwise, manually identifying the place in the configuration file as a mark in the local.
2. And under the condition that the application server deployed in the local area fails, setting the place identifier as an identifier of a different place, otherwise, setting the place identifier as an identifier of the local area.
S203: and sending the address of the application server deployed at the place indicated by the place identifier to the application client according to the address query request of the application client.
As can be seen from the flow shown in fig. 2, the location identifier set according to the operation condition of the application server deployed in the local area is used as an address basis for sending the application server to the application client, so that, in the case of a failure of the local application server, the stored address of the application server deployed in a different location can be sent to the application client through the location identifier, thereby implementing a different-location multi-active service.
Fig. 3 is a flowchart of another address query processing method disclosed in the embodiment of the present application, executed by a service discovery apparatus, including the following steps:
s301: and receiving a registration request of the locally deployed application server, wherein the registration request comprises an address of the locally deployed application server.
S302: and storing the address of the locally deployed application server and the local identification correspondingly.
Since the service discovery apparatus is deployed locally, the local identity is known. Alternatively, the local identification may be stored in the service discovery apparatus in advance.
S303: and acquiring the corresponding relation between the address of the remote application server and the remote identifier from the discovery service device deployed at the remote place.
It should be noted that, the storage location identifier corresponds to the corresponding relationship between the address of the application server and the address of the storage location identifier, according to the storage manner of the local discovery service device, the discovery service device is deployed in a different place. For the local discovery service device, the location identifier deployed in the remote discovery service device is a remote identifier. The local discovery service device synchronizes the corresponding relation in the discovery service device deployed in different places to the local to obtain the address of the corresponding application service end deployed in different places and the identification of the different places.
S304: and under the condition that the application server deployed in the local area fails, setting the place identifier as a remote identifier.
It should be noted that, in the case that there are multiple different places, that is, the correspondence between multiple different place identifiers and the address of the application server is stored, one different place identifier may be randomly selected or selected nearby.
S305: and receiving an address query request of the application client.
S306: and sending the address of the application server corresponding to the identifier of the different place to the application client.
As can be seen from the flow shown in fig. 3, the corresponding relationship between the address of the local application server and the local identifier can be obtained through the registration request of the local application server, the corresponding relationship between the address of the remote application server and the remote identifier can be obtained through the synchronization with the remote discovery service device, and the location identifier is set according to the state of the local application server, thereby implementing the support for the remote multi-live service.
Fig. 4 is a schematic logical structure diagram of a service discovery apparatus according to an embodiment of the present application. As shown in fig. 4, the service Discovery apparatus disclosed in the embodiment of the present application includes a Discovery Client (Discovery Client) and a Discovery Server (Discovery Server). The Discovery Client (Discovery Client) is deployed in an Application Service (Application Service) and an Application Client (Application Client).
The discovery server is used for storing the addresses of the application servers deployed at local places and different places. The discovery client is used for acquiring a place identifier, wherein the place identifier is used for indicating local or different places, and the place identifier is a different-place identifier under the condition that an application server deployed in the local fails. The discovery server is further used for sending the address of the application server deployed at the place indicated by the place identifier to the application client according to the address query request of the application client.
Specifically, the location is a city as an example, and a specific implementation flow of functions of each module in the discovery service device shown in fig. 4 is shown in fig. 5:
s501: an Application Service (Application Service) sends a registration request to a Discovery Client (Discovery Client). The registration message includes an address of an Application Service (Application Service).
S502: the Discovery Client (Discovery Client) sends a registration message to a Discovery Server (Discovery Server), wherein the registration message includes an address of an Application Server (Application Service) and an identifier of a deployment city of the Application Server (Application Service).
The identification of the City may be a City Code.
S503: the Discovery Server (Discovery Server) correspondingly stores the address of the Application Service (Application Service) and the identification of the deployment city of the Application Service (Application Service).
For example, after receiving the registration message, the Discovery Server (Discovery Server) constructs a registration path, similar to/projectame/ctycode, according to the described city code, and establishes a child node, similar to/projectame/ctycode/IPPort, under the path by using service information, such as IP and port, as names.
S504: the Discovery Server (Discovery Server) and the Discovery Server deployed in another city synchronously apply the corresponding relation between the address of the Server and the deployed city identifier.
S505: an Application Client (Application Client) initiates an address query request to a Discovery Client (Discovery Client).
S506: the Discovery Client (Discovery Client) sends an inquiry message to the Discovery Server (Discovery Server), wherein the inquiry message comprises the identifier of the priority city.
Specifically, if the local application server is working normally, the identifier of the priority city is a local identifier, otherwise, the identifier of the priority city is an identifier of a different place.
S507: the Discovery Server (Discovery Server) sends the address of the Application Server (Application Service) with priority city deployment to the Application Client (Application Client).
Specifically, for example, after receiving the query message, the Discovery Server (Discovery Server) constructs a query path, similar to/project name/city code, according to the described city code, and returns the addresses of all Application services in the path.
As can be seen from fig. 6, the identifier of the priority city of the Discovery Client (Discovery Client) is preset, and the registration and query messages sent by the Discovery Client (Discovery Client) both carry the identifier of the priority city, so that the Application Client (Application Client) can obtain the address of the Application server (Application Service) deployed in the priority city.
Fig. 6 is an example of the address query processing method:
taking local city a as beijing and offsite city B as shanghai as an example, as shown in fig. 6, under the condition that an Application server (Application Service) deployed in beijing normally works, an Application Client (Application Client) deployed in beijing performs address registration and query with an Application server (Application Service) deployed in beijing according to the flow (priority city is set to beijing) shown in fig. 5, and provides services by calling the Application server (Application Service) deployed in beijing. It is emphasized that the Discovery Server (Discovery Server) deployed in the Service Discovery apparatus in beijing needs to synchronize the addresses of the Application servers (Application servers) stored according to the city dimension, i.e., synchronize the registration information, with the Discovery Server (Discovery Server) deployed in the Service Discovery apparatus in the shanghai.
In the case that an Application Service (Application Service) deployed in beijing cannot work normally, it cannot be called normally by an Application Client (Application Client) deployed in beijing, and the Application Client (Application Client) deployed in beijing needs to call an Application Service (Application Service) deployed in shanghai.
The preferred city of the Discovery Client (Discovery Client) deployed in the service Discovery apparatus in beijing was artificially modified by beijing to shanghai. After monitoring the priority city modification configuration file, the Service Discovery device modifies the stored priority city into Shanghai, the Discovery Client (Discovery Client) deployed in Beijing can obtain the address of the Application Server (Application Service) deployed in Shanghai from the Discovery Server (Discovery Server) deployed in Beijing, and sends the address of the Application Server (Application Service) deployed in Shanghai to the Application Client in Beijing, so that the Application Client in Beijing can call the Application Server (Application Service) deployed in Shanghai to execute the Service.
As can be seen from fig. 6, the Application clients (Application clients) in the same city are registered in the Discovery Server (Discovery Server) of the Service Discovery device deployed in the city, and when the Application Server (Application Server) deployed in the city works normally, the preferred city of the Discovery Client (Discovery Client) of the Service Discovery device deployed in the city is configured as the city, so that the Application clients (Application clients) deployed in the city can call the Application Server (Application Server) deployed in the same city normally to execute the Service. Under the condition that the Application Service terminal (Application Service) deployed in the city can not work normally, the Application Client terminal (Application Client) deployed in the city inquires the addresses of the Application Service terminals (Application services) deployed in other cities by modifying the mode of the prior city of the Discovery Client terminal (Discovery Client) of the Service Discovery device deployed in the city, and executes the Service through the Application Service terminals (Application services) deployed in other cities.
Compared with the method of simply opening the Application server (Application Service) addresses of multiple cities to the Application Client (Application Client), the method shown in fig. 6 can avoid the problem of Service performance reduction of the distributed system caused by the Application server (Application Service) calling the Application server (Application Service) across cities under the condition that the Application server (Application Service) of one city normally works.
The functions described in the method of the embodiment of the present application, if implemented in the form of software functional units and sold or used as independent products, may be stored in a storage medium readable by a computing device. Based on such understanding, a part of the present application or a part of the technical solution that contributes to the existing handover technology may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions to enable a computing device (which may be a personal computer, a server, a mobile computing device, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. An address query processing method, comprising:
storing addresses and corresponding location identifications of application servers deployed in a local place and a remote place, wherein the local place refers to a deployment place of a service discovery device, the remote place refers to a deployment place other than the deployment place of the service discovery device, and the storing of the addresses and the corresponding location identifications of the application servers deployed in the remote place comprises the following steps: acquiring a corresponding relation between an address of a remote application server and a remote identifier from a discovery service device deployed in a remote place;
the method comprises the steps of obtaining a place identifier, wherein the place identifier is used for indicating local or different places, and the place identifier is a different place identifier under the condition that an application server deployed in the local fails;
sending an address of an application server deployed at a place indicated by the place identifier to an application client according to an address query request of the application client;
the acquiring the location identification comprises:
monitoring a configuration file comprising the place identifier, and acquiring the place identifier from the configuration file, wherein the place identifier in the configuration file is set as a remote identifier under the condition that the application server deployed in the local fails, otherwise, the place identifier in the configuration file is set as a local identifier;
or, setting the place identifier as an identifier of a different place under the condition that the application server deployed in the local place fails, otherwise, setting the place identifier as an identifier of the local place;
the sending, to the application client, the address of the application server deployed at the location indicated by the location identifier according to the address query request of the application client includes:
and under the condition that the application server deployed in the local area fails, sending the address of the application server corresponding to the identifier in the different place to the application client according to the address query request of the application client.
2. The method of claim 1, further comprising, before storing the addresses and corresponding location identifications of the locally and remotely deployed application servers:
and receiving a registration request of the locally deployed application server, wherein the registration request comprises an address of the locally deployed application server and a corresponding place identifier.
3. The method of claim 2, wherein storing the address of the locally deployed application server and the corresponding location identifier comprises:
and correspondingly storing the address of the application server deployed in the local and the local identifier.
4. A service discovery apparatus, comprising:
a discovery server and a discovery client;
the discovery server is used for storing the addresses of the application servers deployed at the local place and the different places and the corresponding place identifications; the local is a deployment place of the service discovery device, the remote is another deployment place except the deployment place of the service discovery device, and the discovery server is used for storing the address and the corresponding place identification of the application server deployed at the remote, and the method comprises the following steps: the discovery server is specifically used for acquiring the corresponding relation between the address of the remote application server and the remote identifier from a discovery service device deployed in a remote place;
the discovery client is used for acquiring a place identifier, wherein the place identifier is used for indicating local or different places, and the place identifier is a different place identifier under the condition that an application server deployed in the local fails;
the discovery server is further used for sending the address of the application server deployed at the place indicated by the place identifier to the application client according to the address query request of the application client;
the discovery client is used for acquiring the location identifier and comprises:
monitoring a configuration file comprising the place identifier, and acquiring the place identifier from the configuration file, wherein the place identifier in the configuration file is set as a remote identifier under the condition that the application server deployed in the local fails, otherwise, the place identifier in the configuration file is set as a local identifier;
or, setting the place identifier as an identifier of a different place under the condition that the application server deployed in the local place fails, otherwise, setting the place identifier as an identifier of the local place;
the discovery server is further configured to send, to the application client according to an address query request of the application client, an address of the application server deployed at the location indicated by the location identifier, where the address query request includes:
and the discovery server sends the address of the application server corresponding to the identifier of the different place to the application client according to the address query request of the application client under the condition that the application server deployed in the local fails.
5. The apparatus of claim 4, wherein the discovery client is further configured to:
before the discovery server stores the addresses of the application servers deployed in the local area and the corresponding place identifications, receiving a registration request of the application server deployed in the local area, wherein the registration request comprises the address of the application server deployed in the local area and the corresponding place identification, and sending the address of the application server deployed in the local area and the place identification to the discovery server.
6. The apparatus of claim 5, wherein the discovery server is configured to store the address of the locally deployed application server and the corresponding location identifier, and comprises:
the discovery server is specifically configured to correspondingly store the address of the application server deployed in the local area and the identifier in the different area from the local identifier.
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| CN108011995A (en) * | 2017-12-19 | 2018-05-08 | 北京星河星云信息技术有限公司 | Strange land implementation method more living, strange land service platform more living and storage medium |
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| GB2508419B (en) * | 2012-11-30 | 2021-03-24 | Metaswitch Networks Ltd | Synchronisation of database records using a transaction log and global version |
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| CN105187464A (en) * | 2014-06-19 | 2015-12-23 | 中兴通讯股份有限公司 | Data synchronization method, device and system in distributed storage system |
| CN106686077A (en) * | 2016-12-24 | 2017-05-17 | 上海七牛信息技术有限公司 | System and method for processing network requests across double-layer proxies of data centers in computer rooms |
| CN108011995A (en) * | 2017-12-19 | 2018-05-08 | 北京星河星云信息技术有限公司 | Strange land implementation method more living, strange land service platform more living and storage medium |
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