CN113641385A - Distributed application parameter distribution system - Google Patents
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Abstract
The invention discloses a distributed application parameter distribution system. The system comprises: the system comprises a parameter management module, an event notification module, a data persistence module and a data monitoring module; when one of the service devices in the service end receives an application parameter change request sent by the parameter management module, the application parameter change information is stored in the database, and an application parameter change event is sent to other service devices in the data cluster through the event notification module, so that the other service devices read the application parameter change information from the database; and the data monitoring module is used for monitoring the application parameter change information of the server so that the client updates the local cache data of the client according to the parameter monitoring result. The technical scheme realizes the communication capacity among the service devices in the data cluster, the centralized management of the application parameters, the dynamic configuration of the application parameters and the real-time effect capacity, and also realizes the development requirements of flexibility and agility.
Description
Technical Field
The embodiment of the invention relates to the technical field of financial science and technology, in particular to a distributed application parameter distribution system.
Background
With the development of services and the upgrade of micro-service architectures, the number of services and the configuration of application parameters are more and more, and the requirement on the flexibility of parameter management is higher and higher, and particularly under the background of fast iteration and agile development of applications, the unified management, dynamic configuration and real-time effect of each application parameter become problems which need to be solved urgently.
At present, the configuration of the parameters of the application is mainly realized based on a hard coding mode and a configuration file mode. However, the hard coding-based method is to directly embed the parameter data into the source code of the program or other executable objects, and directly associate the parameter data with the application logic, so that the corresponding program logic needs to be modified when the parameter information is updated or added; the mode based on the configuration file is to extract the relevant parameters of the application into the individual configuration file, namely, each application needs to maintain the configuration file separately, the relevant logic of the application obtains the corresponding parameter information from the configuration file according to the agreed format, the management of the parameters only needs to maintain the corresponding configuration file according to the agreed format, the application logic does not need to be concerned too much, and the interaction with the service is reduced.
Disclosure of Invention
In view of this, the present invention provides a distributed application parameter distribution system, which realizes the centralized management of the application parameters of each microservice in a distributed environment, and the capability of dynamically acquiring and changing the application parameters of each microservice in real time.
In a first aspect, an embodiment of the present invention provides a distributed application parameter distribution system, including: the system comprises a client, a server and a management end; wherein, the management end includes: a parameter management module; the server side comprises: the system comprises an event notification module and a data persistence module; the client comprises: a data monitoring module;
the parameter management module is used for centrally managing application parameters related to each micro-service application, receiving change operation on the application parameters, generating corresponding application parameter change information, and sending an application parameter change request carrying the application parameter change information to the server through the data persistence module;
when one of the service devices in the service end receives an application parameter change request, the application parameter change information is stored in a database through the data persistence module, and an application parameter change event is sent to other service devices in the data cluster through the event notification module, so that the other service devices read the application parameter change information from the database;
the data monitoring module is used for monitoring application parameter change information corresponding to the application parameter configuration set subscribed by the client in the server, so that the client updates local cache data of the client according to a parameter monitoring result.
Further, the management side and the client side each further include: and the authority control module is used for controlling the change operation authority of the application parameters through different types of user identities and authority distribution.
Further, the server further includes: a server local cache module;
and the server local cache module is used for caching the configuration information of each application parameter stored in the database.
Further, the client further includes: a client local cache module;
and the client local cache module is used for caching the application parameter configuration information read from the server to the local client according to the application parameter configuration set subscribed by the client.
Further, the management terminal configures a visual management interface to enable a user to visually manage and operate the application parameters.
Further, the method for the server to update the application parameter change information at least includes one of the following: an incremental update mode; and (4) a full-scale updating mode.
Further, when the time interval between the heartbeat timestamp for starting the server currently and the heartbeat timestamp for starting the application of the server in the server last time is smaller than a preset time interval threshold value, updating the change parameters in an incremental updating mode; and when the time interval between the heartbeat timestamp for starting the application of the service end in the service end at present and the heartbeat timestamp for starting the application of the service end in the service end last time is greater than a preset time interval threshold value, updating the change parameters in a full-scale updating mode.
Furthermore, the management end with the client respectively with communication between the server all adopts gRPC request the server will at least two different type application parameter change requests of client through link layer RPC handle convert the same functional structure data into.
Further, the client determines the change condition of the application parameter according to the consistency between the MD5 value corresponding to the acquired application parameter configuration set and the MD5 value of the application parameter configuration information stored in the server.
Further, the client logic is packaged by using the uniform SDK, and corresponding annotations are provided, so that each micro-service application uses the SDK and the annotations to obtain related application parameters.
The embodiment of the invention discloses a parameter management module, which is used for centrally managing application parameters related to each micro-service application, receiving change operation on the application parameters, generating corresponding application parameter change information, and sending an application parameter change request carrying the application parameter change information to a server through a data persistence module; when one of the service devices in the service end receives an application parameter change request, the application parameter change information is stored in a database through the data persistence module, and an application parameter change event is sent to other service devices in the data cluster through the event notification module, so that the other service devices read the application parameter change information from the database and update the local cache of the service end; the data monitoring module is used for monitoring application parameter change information corresponding to the application parameter configuration set subscribed by the client in the server, so that the client updates local cache data of the client according to a parameter monitoring result. According to the technical scheme of the embodiment, the communication capacity among the service devices in the data cluster is realized through the event notification module; the application parameter change information is persistently stored in the database through the data persistence module, so that the centralized management of the application parameters is realized; and through functions of data monitoring, data notification and the like, the dynamic configuration and real-time effect capability of the application parameters are realized, and the development requirements of flexibility and agility are also realized.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a block diagram of a distributed application parameter distribution system according to an embodiment of the present invention;
fig. 2 is a block diagram of another distributed application parameter distribution system according to an embodiment of the present invention;
fig. 3 is a block diagram of a distributed application parameter distribution system according to another embodiment of the present invention;
FIG. 4 is a flow chart of data notification of distributed application parameters according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a gRPC notification mechanism according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
In an embodiment, fig. 1 is a block diagram of a distributed application parameter distribution system according to an embodiment of the present invention, and this embodiment is applicable to a case of distributing distributed application parameters. As shown in fig. 1, the distributed application parameter distribution system in this embodiment includes: a client 10, a server 20 and a management end 30; among them, the management terminal 30 includes: a parameter management module 301; the server 20 includes: an event notification module 201 and a data persistence module 202; the client 10 includes: a data monitoring module 101;
the parameter management module 301 is configured to centrally manage application parameters related to each microservice application, receive a change operation on the application parameters, generate corresponding application parameter change information, and send an application parameter change request carrying the application parameter change information to the server 20 through the data persistence module 202;
when one of the service devices in the server 20 receives an application parameter change request, the data persistence module 202 stores the application parameter change information in the database 203, and the event notification module 201 sends an application parameter change event to the other service devices in the data cluster, so that the other service devices read the application parameter change information from the database 203;
the data monitoring module 101 is configured to monitor application parameter change information corresponding to the application parameter configuration set subscribed by the client in the server 20, so that the client updates local cache data of the client 10 according to a parameter monitoring result.
In an embodiment, an application parameter refers to a distributed application parameter; the change operation on the application parameter refers to a modification operation on the application parameter. Illustratively, the modifying operation may include one of: addition operation, deletion operation, modification operation, and the like, which are not limited, of course.
On the basis of the above embodiment, the management end 30 configures a visual management interface to enable a user to visually manage and operate the application parameters. In the embodiment, a user may perform a change operation on an application parameter through the visual management end 30, when the management end 30 receives the change operation on the application parameter by the user, generate corresponding application parameter change information according to the change operation on the application parameter, the parameter management module 301 generates a corresponding application parameter change request according to the application parameter change information, and sends the application parameter change request carrying the application parameter change information to one of the service devices in the service end 20 through the data persistence module 202. It can be understood that, when the management end 30 requests to invoke the service end 20, only any one service device of the service end 20 may receive the application parameter change request, that is, when the application parameter is changed, other service devices in the service end 20 cannot sense the change of the application parameter, that is, inconsistency of the cached data between the service devices in the service end 20 is caused. In the embodiment of the present invention, through the capability of the event notification module 201, when one of the service devices receives an application parameter change request, the current service device stores application parameter change information in the database 203, defines an application parameter change event, and sends the application parameter change event to the other service devices in the data cluster, the service device that receives the application parameter change event sends a callback to the current service device, which indicates that a notification of the application parameter change event is received, and the other service devices that receive the application parameter change event read the latest application parameter configuration information from the database 203, so as to update the local cache information of the service end.
In an embodiment, the logic of the data monitoring module 101 is to ensure that the data of the application parameter at the client 10 is consistent with the data at the server 20, and the operation is to update the local cache data of the client 10 and also to execute a callback of monitoring, where the callback executes a refresh operation according to the application parameter configuration information read from the server 20, so that the microservice application acquires the changed parameter information (i.e., the application parameter change information), thereby achieving the capability of enabling the application parameter to take effect in real time without restarting the client 10. It can be understood that the data monitoring module 101 of the client 10 monitors the change of the application parameters at the server 20 for updating the local cache of the client 10, and at the same time executes the callback of the monitoring, and refreshes the parameter values used by the micro service application in the callback, so as to achieve the capability of taking effect in real time after modifying the parameter values.
According to the technical scheme of the embodiment, the communication capacity among the service devices in the data cluster is realized through the event notification module; the application parameter change information is persistently stored in the database through the data persistence module, so that the centralized management of the application parameters is realized; and through functions of data monitoring, data notification and the like, the dynamic configuration and real-time effect capability of the application parameters are realized, and the development requirements of flexibility and agility are also realized.
In an embodiment, fig. 2 is a block diagram of another distributed application parameter distribution system provided in an embodiment of the present invention. The present embodiment is further described with respect to the structure of the distributed application parameter distribution system based on the above-described embodiments. As shown in fig. 2, the distributed application parameter distribution system in this embodiment further includes: the system comprises an authority control module and a local cache module. Wherein, the management end 30 and the client 10 each further include: and the authority control module 302, wherein the authority control module 302 is used for controlling the change operation authority of the application parameters through different types of user identities and authority distribution. On the basis of the above embodiment, the server 20 further includes: a server local cache module 204; the client 10 further includes: a client local cache module 102;
the server-side local cache module 204 is configured to cache each piece of application parameter configuration information stored in the database; and the client local cache module 102 is configured to cache the application parameter configuration information read from the server to the local of the client 10 according to the application parameter configuration set subscribed by the client.
In the embodiment, the authority control module 302 is located at the management end 30 and the client 10, and controls the operation authority of changing the application parameters through different types of user identities and authority assignments, so as to avoid the phenomenon of uncontrollable operation caused by no authority limitation.
On the basis of the above embodiment, the method for the server to update the application parameter change information includes at least one of the following: an incremental update mode; and (4) a full-scale updating mode. On the basis of the embodiment, when the time interval between the heartbeat time stamp of the current starting server and the heartbeat time stamp of the last starting server is smaller than a preset time interval threshold value, updating the change parameters in an incremental updating mode; and when the time interval between the heartbeat time stamp of the current starting server and the heartbeat time stamp of the last starting server is greater than a preset time interval threshold value, updating the change parameters in a full updating mode. In the embodiment, when the server is started, by comparing the heartbeat time stamp of the last start, if the time interval between the heartbeat time stamp and the heartbeat time stamp is shorter, for example, one hour, only the application parameter configuration information which is changed in the database in the time period needs to be updated incrementally; if the interval time is longer, the application parameter configuration information in the full cache database is locally cached, meanwhile, after the cache operation is completed, a timing task is set, the local cache information is updated through the full amount of the timing task, and the cache of the application parameter configuration information is updated by combining the notification based on the application parameter change event. In the embodiment, the consistency between the data cached locally and the data in the database is ensured by using the incremental updating mode and the full updating mode in a combined manner.
On the basis of the above embodiment, the client determines the change condition of the application parameter according to the consistency between the MD5 value corresponding to the acquired application parameter configuration set and the MD5 value of the application parameter configuration information stored in the server. In the embodiment, a long link is maintained between the client and the server, the change condition of the application parameters required by the current microservice application is monitored, whether the application parameter configuration information is changed or not is confirmed by comparing whether the configured MD5 values are consistent or not, if the application parameter configuration information is changed, the latest application parameter configuration information is pulled from the server, the local cache data of the client is updated, and the monitoring event callback processing logic is generated.
On the basis of the embodiment, the distributed application parameter distribution system provides a uniform SDK packaging client and corresponding annotations, so that each micro-service application uses the SDK and the annotations to acquire related application parameters. In the embodiment, each micro-service application uses a corresponding annotation (annotation) for a parameter (key) value to be acquired, acquires parameter value information of each micro-service application in a server in real time according to a parameter monitoring result through data monitoring logic by referring to the SDK, refreshes the key value using the annotation in the corresponding bean according to a monitoring callback generated by application parameter change information, and writes the value into the corresponding key to achieve the capability of real-time validation of the parameter. It can be understood that the SDK is provided for other micro-service applications to use, that is, the other micro-service applications use the functions provided by the current distributed application parameter distribution system through the SDK, so as to achieve the purpose of dynamically acquiring the application parameters.
In an embodiment, fig. 3 is a block diagram of a structure of another distributed application parameter distribution system according to an embodiment of the present invention. This embodiment describes the structure of a distributed application parameter distribution system as a preferred embodiment of the above embodiments. As shown in fig. 3, the distributed application parameter distribution system in the present embodiment includes: the system comprises a data persistence module 202, a client local cache module 102, a server local cache module 204, an event notification module 201, a data monitoring module 101, a parameter management module 301 and a permission control module 302. Wherein the six modules relate to a client 10, a server 20 and a management side 30.
Wherein, the data persistence module 202 is located at the server 20, and is related to the storage of the database 203 and provides an interactive interface with the database 203;
the server side cache module 204 provides the capability of caching the application parameter information contained in the cluster based on the cluster information, reduces the interaction with the database 203 when acquiring data from the server side 20, and reduces the pressure of the database 203; the client cache module 102 caches the application parameters to the local, reduces interaction with the server 20, and can still provide service for the application according to the cache data when the server 20 has a problem;
the event notification module 201 is located at the server side and designs a function of mutual notification among the machines in the cluster, so as to realize the capability of intercommunication among the machines in the cluster;
the data monitoring module 101: the client 10 is used for monitoring the change condition of the application parameters in the server 20 by the client 10;
the parameter management module 301 is located at the management end 30, and realizes centralized management and operation of the application parameters through a visual management interface;
the authority control module 302 is located at the management terminal 30 and the client terminal 10, and controls the authority through different types of user identities and authority distribution, so as to avoid uncontrollable operation possibly caused by no authority limitation.
In the embodiment, a configuration table structure of relevant application parameters is designed according to application of a server, and application parameter configuration information is persistently stored in a database, so that centralized management of application parameters is realized, and the shareable capability of public parameters is also provided; moreover, the operation of increasing, deleting, modifying and checking the configuration information of the application parameters can be intuitively realized through a visual application parameter management interface; moreover, the management system of each application for the parameters is normalized through the distributed application parameter distribution service, the interaction scheme of various application parameter configurations generated by each application team due to different development habits is avoided, and the flow and systematized configuration logic is realized through a uniform configuration scheme; moreover, by the functions of data monitoring, data notification and the like, the dynamic configuration and real-time effect capability of application parameters are realized, the development requirements of flexibility and agility are also realized, and the problem that the application needs to be reissued or restarted after the application parameters are modified is solved; and based on a mechanism for updating the cache data by combining timing and event notification, the consistency of the cache data and the database data is ensured by a scheme combining two modes, the pressure of the database and a server is relieved by caching, the usability of the application is ensured by caching the data when the service or the database has problems, and the high usability of the application is ensured.
In an embodiment, fig. 4 is a flowchart of data notification of a distributed application parameter according to an embodiment of the present invention. As shown in fig. 4, the data communication process of the distributed application parameters is as follows:
in the embodiment, when the application parameter change request calls the server, the application parameter change request only falls on any one of the service devices in the data cluster of the server, for example, when the application parameter is changed, other service devices cannot sense the change of the application parameter, which may cause inconsistency of cached data between the service devices in the server. In the scheme, through the capability of the data notification module, when one of the service devices receives an application parameter change request, the current service device stores application parameter change information in the database, and at the same time, a defined application parameter change event (ConfigDataChangeEvent) sends the application parameter change event to the other service devices in the data cluster, and the other service devices receiving the application parameter change event send a callback to the current service device, which indicates that the notification of the application parameter change event is received, and at the same time, the other service devices receiving the notification of the application parameter change event read the latest application parameter configuration information from the database, and update local cache information.
In an embodiment, the management end and the client respectively communicate with the server by using gRPC requests, and different types of application parameter change requests of at least two clients are converted into the same functional structure data by a Remote Procedure Call (RPC) Handler of a link layer at the server, so as to reduce frequent TCP link overhead. It can be understood that gRPC requests are used for communication between the management side and the server side and between the client side and the server side, and different types of application parameter change requests of each client side and the management side are converted into the same functional structure data through RPC Handler at the server side, so that long-chain streaming push capability is realized. In the distributed application parameter distribution system, a gPC communication mode is adopted among a management end, a server end and a client end, all requests of the same client end are carried out through the same link and the same service node, and long-link streaming push is used, so that the throughput of the system is improved, and invalid QPS is reduced. Specifically, fig. 5 is a schematic diagram illustrating a principle of a gRPC notification mechanism according to an embodiment of the present invention. The invention realizes the calling and pushing capabilities of long-chain connection RPC through the gRPC and the Rsocket. At the server side, through a link layer RPC Handler, different types of Request requests from different clients are converted into functional structure data with the same semantic meaning, and service processing logic is multiplexed, so that frequent TCP link overhead is reduced.
It should be noted that, in the embodiment of the distributed application parameter distribution system, each unit and each module included in the embodiment are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A distributed application parameter distribution system, comprising: the system comprises a client, a server and a management end; wherein, the management end includes: a parameter management module; the server side comprises: the system comprises an event notification module and a data persistence module; the client comprises: a data monitoring module;
the parameter management module is used for centrally managing application parameters related to each micro-service application, receiving change operation on the application parameters, generating corresponding application parameter change information, and sending an application parameter change request carrying the application parameter change information to the server through the data persistence module;
when one of the service devices in the service end receives an application parameter change request, the application parameter change information is stored in a database through the data persistence module, and an application parameter change event is sent to other service devices in the data cluster through the event notification module, so that the other service devices read the application parameter change information from the database;
the data monitoring module is used for monitoring application parameter change information corresponding to the application parameter configuration set subscribed by the client in the server, so that the client updates local cache data of the client according to a parameter monitoring result.
2. The distributed application parameter distribution system of claim 1, wherein the management side and the client side each further comprise: and the authority control module is used for controlling the change operation authority of the application parameters through different types of user identities and authority distribution.
3. The distributed application parameter distribution system of claim 1, wherein the server further comprises: a server local cache module;
and the server local cache module is used for caching the configuration information of each application parameter stored in the database.
4. The distributed application parameter distribution system of claim 1, wherein the client further comprises: a client local cache module;
and the client local cache module is used for caching the application parameter configuration information read from the server to the local client according to the application parameter configuration set subscribed by the client.
5. The distributed application parameter distribution system of any one of claims 1-4, wherein the management side configures a visual management interface to allow a user to visually manage and manipulate application parameters.
6. The distributed application parameter distribution system of any of claims 1-4, wherein the manner in which the server updates the application parameter change information includes at least one of: an incremental update mode; and (4) a full-scale updating mode.
7. The distributed application parameter distribution system according to claim 6, wherein when a time interval between a heartbeat timestamp of a current server and a heartbeat timestamp of a last server is less than a preset time interval threshold, updating the change parameter in an incremental updating manner; and when the time interval between the current heartbeat time stamp for starting the server and the heartbeat time stamp for starting the server last time is greater than a preset time interval threshold value, updating the change parameters in a full-quantity updating mode.
8. The distributed application parameter distribution system according to any one of claims 1 to 4, wherein the management side and the client side respectively communicate with the server side by using gRPC requests, and different types of application parameter change requests of at least two client sides are converted into the same functional structure data by the server side through a link layer RPC Handler.
9. The distributed application parameter distribution system according to any one of claims 1 to 4, wherein the client determines a change of the application parameter according to a consistency between the MD5 value corresponding to the obtained application parameter configuration set and the MD5 value of the application parameter configuration information stored in the server.
10. The distributed application parameter distribution system of any of claims 1-4, wherein a unified SDK is employed to encapsulate the client and provide corresponding annotations, such that each microservice application uses the SDK and annotations to obtain relevant application parameters.
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| CN113641385B (en) | 2024-01-19 |
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