CN105025095B - Realize the aggregated structure of cloud computing elasticity service - Google Patents
Realize the aggregated structure of cloud computing elasticity service Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
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Abstract
The invention discloses a kind of aggregated structures for realizing cloud computing elasticity service, comprising: service registration system, configuration center, load balancer and management system；Wherein, service registration system is used for registration service information；Configuration center acquires the information on services and resource, and stores；And dynamic update is carried out by the operating status of monitoring service and expectation state；Management system obtains the information on services and resource from configuration center, establishes resource-service data table, and periodically obtains the case where current service is run from configuration center；Load balancer realizes the load balancing to service according to the resource-service data table.By the above-mentioned means, the present invention can integrate the component of different function, realize that service discovery, resources optimization utilize, and to the load balancing of service.
Description
Technical field
The present invention relates to field of cloud computer technology, more particularly, to a kind of aggregated structure for realizing cloud computing elasticity service.
Background technique
Server cluster just refers to get up many server centereds carries out same service together, In the view of client just
It seem only one server.Cluster can use multiple computers and carry out parallel computations to obtain very high calculating speed,
It can also be backuped with multiple computers, so that any one machine is broken whole system and still can operate normally.
Many cloud computing platform class softwares are produced to meet the management of server resource, but these software majorities are absorbed in
It solves the problems, such as a part, rarely has and proposition standard is held to the whole of entire group system O&M, so that the portion of cloud computing cluster
Administration is complicated.
Summary of the invention
The technical problems to be solved by the present invention are: integrating different components, major functional unit feature is maximally utilized, it is real
Existing resource consolidation, facilitates cluster management.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of realization cloud computing elasticity clothes are provided
The aggregated structure of business, comprising: service registration system, configuration center, load balancer and management system；Wherein,
Service registration system is used for registration service information；
Configuration center acquires the information on services and resource, and stores；And pass through the operating status and expectation of monitoring service
State carries out dynamic update；
Management system obtains the information on services and resource from configuration center, establishes resource-service data table, and periodically
The case where current service is run is obtained from configuration center；
Load balancer is realized equal to the load of service according to the resource-service data table by scheduled mode
Weighing apparatus.
The beneficial effects of the present invention are: it is different from the prior art, the present invention is realized by integrating the component of different function
Service discovery, resources optimization utilize, and can realize that dynamic monitors, and realize the dynamic load leveling to service.
Detailed description of the invention
Fig. 1 is the structural block diagram of present system embodiment one；
Fig. 2 is the structural block diagram of present system embodiment two；
Fig. 3 is one of the realization architecture diagram of the specific embodiment of the invention.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
Fig. 1 is please referred to, the embodiment of the present invention one provides a kind of aggregated structure 100 for realizing cloud computing elasticity service, comprising:
Service registration system 110, configuration center 120, load balancer 130 and management system 140；Wherein,
Service registration system 110 is used for registration service information；
Configuration center 120 acquires the information on services and resource, and stores；And pass through the operating status of monitoring service and phase
Prestige state carries out dynamic update；
Management system 140 obtains the information on services and resource from configuration center 120, establishes resource-service data table,
And the case where current service is run periodically is obtained from service registration system 110；
Load balancer 130 is according to the resource-service data table, by scheduled mode, such as DNS mode, realization pair
The load balancing of service.
It is different from the prior art, the embodiment of the present invention one realizes service discovery, resource by integrating the component of different function
Optimum use, and can realize that dynamic monitors, and to the dynamic load leveling of service.
Specifically, the aggregated structure in the embodiment of the present invention two further include: operational system 150；Wherein, the configuration center
120 periodically collect the information on services by management system 140, and call the increasing of the API realization service node of operational system 150
Add, delete and stops operation.
Wherein, the service registration system 110, configuration center 120, load balancer 130, management system 140 and O&M
System 150 realizes combination by the HTTP API of standard, and the aggregated structure is loose coupling framework.
Wherein, the configuration center 120 is relevant database and its cluster, distributed cache system and distribution
One of which in NoSQL database.
Wherein, the information on services be computing resource information, including computing resource IP, port, priority, weight, domain name,
Health detection mode.
Wherein, the service registration system 110.
When service starts to execute, service registration system registry service state is called；
During service execution, dynamic updates operating parameter；
After service execution, service is nullified.
Wherein, wherein service registration system 110 and completes information on services periodically in configuration center registration service information
After registration, address of service is supplied to by client-side program by scheduled mode.
Wherein, the load balancer 130, by the weight of the pre-assigned service of service registration system 110 and preferential
Grade carries out dynamic release to the domain name of service, realizes the load balancing of service call by way of DNS.
Wherein, according to the resource-service data table, the management system 140 compares current service operating condition and reason
Think state, and Analysis Service operating status, finds the resource that can not be serviced, and operational system 150 is called to start new resource, replace
The resource that generation can not service.
Wherein, according to the resource-service data table, the ability that the management system 140 provides it service is commented
Estimate, disposes new Service Source, and/or recycling Service Source.
In a specific embodiment, the present invention is based on the theories of service-oriented frame (SOA), wherein SOA can root
Distributed deployment, combination and use are carried out by coarseness application component of the network to loose couplings according to demand.Service layer is SOA
Basis, can directly be called by application, thus the artificial dependence effectively interacted with ageng in control system.
SOA is a kind of coarseness, loose coupling service architecture, is communicated between service by simple, explication interface,
It is not related to programming on bottom layer interface and Communication Model.SOA can be regarded as B/S model, the XML (son of standard generalized markup language
Collection) natural after/Web Service technology extend.
SOA will helper applications engineers station in a new height understand the various assemblies in enterprise's level framework
Exploitation, deployment form, it will help Enterprise Systems Architecture person with it is rapider, more reliable, more the entire business system of reusability framework
System.As compared with the past, the change dramatically of business can be faced more at leisure with the system of SOA framework.
The embodiment of the present invention passes through integration management following function system:
Such as service registration agency, configuration center, load balancer, cluster management system, cluster operational system, it can be achieved that
A set of High Availabitity, dynamic elasticity, O&M close friend cloud computing elasticity service cluster framework.(matched by single data center
Set center) storing service information, data are periodically collected by cluster management system, compare the operating status and expectation state of service
It makes a policy, by calling operational system API to realize, increase, deletion and the stopping etc. of service node are operated, and realize service with this
It was found that load balancing, fault restoration, so that cluster High Availabitity, that is, provide the service of elastic telescopic High Availabitity.
It should be understood that cluster management system belongs to management system in the embodiment of the present invention, management system can have perhaps
Mostly different functions, but each function may be gone to complete by individual program, but be all attributed to management system, convenient abstract table
It states.Management system and load balancing are separated, although load balancing also belongs to a kind of management, its function is more clear,
And operating status is also real-time, and management system can be executed periodically.And elastic telescopic depends on management system pair
The inspection and recovery of cluster state.
Preferably, aggregated structure of the present invention is load equalization framework, for the arbitrary portion component in the framework,
The component of identity function can be used to achieve the effect that the compatible framework after corresponding functional interface by realizing, functional unit it
Between be loose coupling.
Load balancing (Load Balance) is built upon on existing network infrastructure, it provides a kind of cheap effectively saturating
The bandwidth of bright method extended network equipment and server increases handling capacity, Strengthens network data-handling capacity, improves network
Flexibility and availability.Load balancing is made of a server set, every service multiple servers in a symmetrical manner
Device all has status of equal value, service individually can be externally provided and without the auxiliary of other servers.It is loaded by certain
Technology is shared, on a certain server that the request that outside is sent is evenly distributed in symmetrical structure, and receives request
Server independently respond the request of client.Equally loaded can mean allocation client request to server array, take this to mention
For quick obtaining significant data, solve largely concurrently to access service problem.This clustering technique can be obtained with least investment
Close to the performance of mainframe.It is executed it is simply that sharing on multiple operating units, such as Web server,
Ftp server, enterprise's key application server and other key task servers etc., to complete task jointly.
Aggregated structure of the invention has high availability simultaneously.High-availability cluster is for the purpose of reducing out of service time
Server cluster technology.It by the service that externally uninterruptedly provides of business procedure of protection user, because software/hardware/
Influence of the failure to business caused by artificial is reduced to minimum.
Node in high availability cluster is usually a main standby or main prepare more, improves whole system by backup
Availability.
Load balancing cluster is usually mostly main, each node load traffic.Therefore the cluster frame in the embodiment of the present invention
Structure is how main prepare more, as shown in Figure 3.Fig. 3 is a kind of implementation schematic diagram of aggregated structure, to use DNS service as negative
Carry the aggregated structure of balance module；It should be understood that the load balancer of this figure is it is emphasised that tool level, flows for separating
The software of amount, such as Ngnix, HAProxy.Rather than the load balancer of functional plane.
High-availability cluster (High Availability Cluster, abbreviation HA Cluster), briefly, cluster
It (cluster) is exactly one group of computer, they provide a user one group of Internet resources as a whole.These single calculating
Machine system is exactly the node (node) of cluster.High availability cluster (HA cluster) refers to that single system such as equally runs and props up
Hold the host group that (computer) persistently operates normally.
Meanwhile the service registration system of the embodiment of the present invention logon mode and is managed collectively, centralized dispatching using dividing and ruling,
It is friendly that High Availabitity, dynamic elasticity, O&M can be achieved.
For the dynamic management for realizing service cluster, realization of the invention is by using a series of groups with specific function
Part is realized respectively by the computing cluster for a set of offer elasticity service that these components form, and by the HTTP API of realization standard
A component flexible combination gets rid of the dependence to specific component, greatly enhances the scalability (i.e. loose coupling framework) of the program.
Specifically, the aggregated structure in the embodiment of the present invention includes following several big functions: service registration, is born service discovery
Carry the parts such as equilibrium, elastic telescopic, serve resources management.As shown in figure 3, existing introduce each level according to the framework is bottom-up
The realization of component and it with other assemblies the mode that is mutually related.
For cloud computation data center, core resource is the computing capability of server, and computing capability is abstracted into number and is exactly
The core number of CPU, memory size, disk size etc..When needing to be managed collectively resource, and resource needs operate in behaviour
Make on system, in the prior art, there is following several implementations: the direct process run on an operating system is operating
Virtual machine is run in system, and several processes, container technique, such as Docker or other appearances are run on each individually virtual machine
Device technology.For these three forms, one of granularity as resource management, while the O&M that it is exposed may be selected
The management that the API of system is transformed to meet management system to resource, such as process for directly running on an operating system
Management, the API of SaltStack can be used, carry out distribution, deployment, execution and stopping of process etc. operation.Then will
These API of SaltStack give management system United Dispatching.Form as used other resource managements, if being able to achieve application
Distribution, deployment, the API for executing and stopping operation, so that it may seamless is included in entire framework.
The health information and the Resources list information, configuration center of configuration center acquisition service of the invention can use
Relevant database and its cluster, distributed cache system, distribution NoSQL database.
The resource information for needing to be included in configuration center is defined, such as resource IP, port, priority, weight, domain name, health
Detection mode etc., wherein priority and weight are can be defined by user or when service registration by certain public affairs
Formula obtains.If it is itself service achievable or being transformed is serviced, the api function of configuration center can be used,
It is nullified when registration service state, end of run when service starts to execute and services, dynamically updates operation in implementation procedure
Parameter；For source code can not be modified and other are not convenient to use the service of configuration center API, the service registration of realization can be passed through
Service registration behavior more than system completion, is responsible for monitoring service operating status, periodically in configuration center by service registration system
Registration service information and complete information on services registration after, address of service is supplied to by client-side program by certain way.
The registration process of service is exactly the process by the API of configuration center toward configuration center write service operating status.
After completing service registration, service caller can obtain the information of service by certain mode, and the service of realization is adjusted
Discovery of the user to ISP.Wherein, service caller is using the client-side program of service, is the use of cluster service
Side, the service provided using cluster；ISP is the program example run in each equipment in cluster, externally provides clothes
Business.It can realize that the load balancing of service, another load balancing need an individual load balancing layer herein, DNS association may be implemented
The service of view or the load mechanism of other forms, but substantially, the data of load balancing layer all derive from configuration center record
Service state.Since a service can be provided by multiple computing resources, a server can dispose multiple same services,
The performance and ability of each server are not quite similar, and by configuring weight and priority, weighted polling and tune is arranged at the end DNS
Whole service priority can be realized and be dynamically distributed to service.
Since each application needs to distribute different services, each developer may manage different applications simultaneously, service
Management system manages the tables of data of a resource perfect condition, which has recorded user-application-resource correspondence situation, clothes
Management program of being engaged in passes through periodically from the currently running service scenario of configuration center acquisition and compares currently practical operating condition and reason
Think that state, Analysis Service operating status find which resource can not service, for that can not service by calling operational system
API starts new resource, substitutes the resource that can not be serviced；The ability that service can also be provided it is assessed, for load
The big service of pressure, disposes new Service Source, hoisting power；For loading lesser service, Service Source is recycled, meter is saved
Calculating resource, (this process can call special cluster management system to increase by opening and closing the program on particular server
With recycling computing resource).
Resource generally refers to some system parameters of computer, is the abstract expression of computing capability.But it is high any
System level, resource may also refer to the active program of occupying system resources.Computing resource can be physical host, a void
Quasi- machine or container.In computing resource deployment services trade mark agency, be responsible for monitoring service operating status, exposure service address,
Periodically in configuration center registration service information.Or in the program code that service is provided, actively infused using the API of registration service
Volume service, and when service load pressure is big or offline, information on services is modified from configuration center.
Service is primarily referred to as the operation level of computing resource, is expressed as providing the meter of input-output feedback for other programs
Calculation machine active program.
By the data at acquisition configuration center, the operating condition of entire cluster is obtained, it is convenient that service monitoring is carried out to cluster,
It will be shown on portal using corresponding information on services, developer facilitated to understand its service operation state.
In conclusion aggregated structure provided by the invention, by integrating above-mentioned 5 components, registration service, and passes through load
Balanced device realizes service among multiple servers, while management system and operational system pass through to the service shape in configuration center
State and information on services selectively execute the increase of service node, delete and stop operation, to ensure the load balancing serviced.
The group between component is combined into loose coupling simultaneously, can in practice, and the component by replacing identity function realizes aggregated structure
Effect, therefore have high availability, while elastic telescopic is big, suitable for handling enterprise or other related services of bulk information
Industry, and, it can be achieved that service discovery, resources optimization utilize after integrating above-mentioned 5 components, and can realize that dynamic monitors,
And the dynamic load leveling to service.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (5)
1. a kind of aggregated structure for realizing cloud computing elasticity service characterized by comprising service registration system, configuration center,
Load balancer and management system；Wherein,
Service registration system is used for registration service information；
Configuration center acquires the information on services and resource, and stores；And pass through the operating status and expectation state of monitoring service
Carry out dynamic update；
Management system obtains the information on services and resource from configuration center, establishes resource-service data table, and periodically from clothes
Accreditation System of being engaged in obtains the case where current service operation；
Load balancer realizes the load balancing to service according to the resource-service data table；
The information on services includes resource IP, port, priority, weight, domain name, health detection mode；
The load balancer passes through the weight and priority of the pre-assigned service of service registration system, by way of DNS,
Dynamic release is carried out to the domain name of service, realizes the load balancing of service call；
Further include: operational system；
Wherein, the management system periodically collects the information on services by configuration center, and operational system API is called to realize clothes
The increase of business node is deleted and is stopped operation；
According to the resource-service data table, the ability that the management system provides it service is assessed, and is disposed new
Service Source, and/or recycling Service Source；
According to the resource-service data table, the management system comparison current service operating condition and perfect condition, and point
Service operation state is analysed, finds the resource that can not be serviced, and operational system is called to start new resource, substitutes the money that can not be serviced
Source.
2. the aggregated structure according to claim 1 for realizing the service of cloud computing elasticity, which is characterized in that the service registration
System, configuration center, load balancer, management system and operational system realize combination, the collection by the HTTP API of standard
Group's framework is loose coupling framework.
3. the aggregated structure according to claim 1 for realizing the service of cloud computing elasticity, which is characterized in that the configuration center
For relevant database and its cluster, distributed cache system or distribution NoSQL database.
4. the aggregated structure according to claim 1 for realizing the service of cloud computing elasticity, which is characterized in that the service registration
System,
When service starts to execute, service registration system registry service state is called；
During service execution, dynamic updates operating parameter；
After service execution, service is nullified.
5. the aggregated structure according to claim 1 for realizing the service of cloud computing elasticity, which is characterized in that wherein service registration
System at regular intervals will be serviced in configuration center registration service information, and after the registration for completing information on services by scheduled mode
Address is supplied to client-side program.
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