CN105653370A - System and method for obtaining virtual machine resources on PaaS platform - Google Patents
System and method for obtaining virtual machine resources on PaaS platform Download PDFInfo
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- CN105653370A CN105653370A CN201511008270.8A CN201511008270A CN105653370A CN 105653370 A CN105653370 A CN 105653370A CN 201511008270 A CN201511008270 A CN 201511008270A CN 105653370 A CN105653370 A CN 105653370A
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
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Abstract
The invention discloses a system for obtaining virtual machine resources on a PaaS platform. The system comprises a virtual machine cluster, a monitoring module and a management module, wherein the virtual machine cluster comprises a plurality of virtual machine resources; the monitoring module is used for monitoring the quantity of the virtual machine resources in the virtual machine cluster in real time; the management module is used for receiving a virtual machine resource request from a lessee and distributing the virtual machine resources according to the priority of the lessee; and when the quantity of the virtual machine resources is less than a first threshold value, the monitoring module sends a message to notice the management module and then the management module manages and controls the quantity of the virtual machine resources in real time. The invention furthermore discloses a method for obtaining the virtual machine resources on the basis of the PaaS platform.
Description
Technical field
The present invention relates to the system and method obtaining resources of virtual machine realized in PaaS platform.
Background technology
Cloud computing (cloudcomputing) is based on the increase of related service of the Internet, use and delivery mode, is usually directed to provide dynamically easily extension by the Internet and is often virtualized resource. Cloud computing is for service mode, it is possible to be divided into three kinds, is respectively as follows: IaaS, PaaS and SaaS from below to up. Wherein, PaaS is as the intermediate layer of connection IaaS and SaaS, and its importance grows with each passing day in cloud computing, and is used widely in various circles of society.
PaaS is the abbreviation of Platform-as-a-Service, is meant to platform and namely services. Using server platform as a kind of business model servicing offer. Existing miscellaneous service ability can be integrated by PaaS, specifically can classify as application server, professional ability access, service enabler, business open platform, measuring and calculating infrastructure service ability is needed downwards according to professional ability, by the IaaS API (ApplicationProgrammingInterface provided, application programming interface) call hardware resource, traffic scheduling center service is upwards provided, the various resources of real-time monitoring platform, and these resources is open to SaaS user by API. PaaS enables to apply quick exploitation, deployment, tests, reaches the standard grade, and improves efficiency while effectively having saved cost.
In the conventional technology, as it is shown in figure 1, when user or application need resources of virtual machine, it usually needs first call the bottom IaaS interface provided; After request received by IaaS platform, just go to create virtual machine according to the parameter comprised in request; After treating virtual machine creating, this establishment result and virtual machine information can be returned to PaaS by Iaas; After PaaS obtains the relevant information of virtual machine, need on the one hand virtual machine information input database, also face to be installed by the software required for some PaaS platform and user and environment on a virtual machine on the other hand; After being fully completed Deng these work, the information of virtual machine is returned to user or application by PaaS platform again, meets its demand.
From the above, it is seen that in the conventional technology, time the resources of virtual machine applied for is opened, it is necessary to through the operation of longer flow process, step is complex, and the time consumed also is long. Like this user or application need just to obtain self required resources of virtual machine through long wait. In the ordinary course of things, although this scheme Experience Degree is not very good, but demand can also be met; But at some in particular cases, such as application visit capacity is increased sharply, and when being badly in need of expanded application cluster or load balancing service, utilizes the application that traditional approach carries out resources of virtual machine to be just difficult to meet user's request, reduces the stability of PaaS platform.
Summary of the invention
In order to solve the problems referred to above, this application provides a kind of system obtaining resources of virtual machine realized in PaaS platform, described system includes: cluster virtual machine, and described cluster virtual machine includes multiple resources of virtual machine; Monitoring module, for carrying out monitor in real time to the resources of virtual machine quantity in described cluster virtual machine; And management module, for receiving the request of the resources of virtual machine from tenant, and the priority according to described tenant distributes described resources of virtual machine; Wherein, when the quantity of described resources of virtual machine is lower than first threshold, described monitoring module messaging notice management module, and by described management module, resources of virtual machine quantity is carried out timely management and control.
In said system, when the quantity of described resources of virtual machine is lower than first threshold, described management module is by calling the bottom IaaS interface provided, and sends the request creating virtual machine.
In said system, when the quantity of described resources of virtual machine is higher than Second Threshold, described management module stops calling the bottom IaaS interface provided.
In said system, described management module is configured to pre-set the cluster virtual machine including multiple resources of virtual machine when the system free time.
Said system may also include that message queue, described message queue are provided to the communication between the module of described cluster virtual machine and described system or between module and module.
In said system, after described tenant discharges resources of virtual machine, described management module is configured to reclaim described resources of virtual machine.
According to further aspect of the application, provide a kind of method obtaining resources of virtual machine based on PaaS platform, described method includes: arrange cluster virtual machine, monitoring module and management module in described PaaS platform, wherein said cluster virtual machine includes multiple resources of virtual machine, described monitoring module is for carrying out monitor in real time to the resources of virtual machine quantity in described cluster virtual machine, described management module is for receiving the request of the resources of virtual machine from tenant, and the priority according to described tenant distributes described resources of virtual machine; And when the quantity of described resources of virtual machine is lower than first threshold, utilizes described monitoring module messaging notice management module, and utilize described management module that resources of virtual machine quantity is carried out timely management and control.
In the above-mentioned methods, when the quantity of described resources of virtual machine is lower than first threshold, utilize described monitoring module messaging notice management module, and utilize described management module that resources of virtual machine quantity is carried out timely management and control to include: when the quantity of described resources of virtual machine is lower than first threshold, described management module is by calling the bottom IaaS interface provided, and sends the request creating virtual machine.
In the above-mentioned methods, when the quantity of described resources of virtual machine is lower than first threshold, utilize described monitoring module messaging notice management module, and utilize described management module that resources of virtual machine quantity is carried out timely management and control to include: when the quantity of described resources of virtual machine is higher than Second Threshold, described management module stops calling the bottom IaaS interface provided.
Said method may also include that and utilizes described management module to pre-set, when the system free time, the cluster virtual machine including multiple resources of virtual machine.
Said method may also include that and arranges a message queue to provide the communication between the module of described cluster virtual machine and described system or between module and module.
Said method may also include that after described tenant discharges resources of virtual machine, utilizes described management module to be reclaimed by described resources of virtual machine.
Compared with prior art, the technical scheme of the application at least has the advantage that
(1) when PaaS platform needs service carried out resource expansion or user proposes resource bid, avoid the need for creating new virtual machine by IaaS, but directly from resources of virtual machine Buffer Pool, directly take out existing virtual machine and use, to be greatly improved the capability of fast response of PaaS platform. According to statistics, using before the program, tenant applies for that the time used by resources of virtual machine is 4-5 minute, and within after using the program, the time foreshortens to one minute;
(2) when the application visit capacity of cloud platform is increased sharply, platform can be quickly corresponding, provides resources of virtual machine for application in time, it is ensured that the Quick Extended of application cluster and relevant rudimentary service. Improve the cloud platform ability at solution of emergent event, enhance stability and the suitability of platform; And
(3) make the coupling between PaaS and IaaS reduce, enhance the function of PaaS, reduce the PaaS dependency to IaaS to a certain extent.
Accompanying drawing explanation
After having read the specific embodiment of the present invention with reference to accompanying drawing, those skilled in the art will become apparent various aspects of the invention. Skilled person would appreciate that: these accompanying drawings are used only for coordinating detailed description of the invention that technical scheme is described, and are not intended to protection scope of the present invention is construed as limiting.
Fig. 1 is existing virtual machine creating flow chart; And
Fig. 2 is an embodiment according to the application, the schematic diagram of the system obtaining resources of virtual machine of realization in PaaS platform.
Detailed description of the invention
Be described below be the present invention multiple possible embodiment in some, it is desirable to provide the basic understanding to the present invention, it is no intended to confirm the crucial of the present invention or conclusive key element or limit scope of the claimed. Easy to understand, according to technical scheme, under the connotation not changing the present invention, one of ordinary skill in the art can propose other implementation that can mutually replace. Therefore, detailed description below and accompanying drawing are only the exemplary illustrations to technical scheme, and are not to be construed as the whole of the present invention or are considered as defining or limiting technical solution of the present invention.
IaaS (InfrastructureasaService, namely architecture services), it is a kind of type of cloud computing, it is PaaS (PlatformasaService, namely platform services) and the basis of SaaS (SoftwareasaService, namely software service). IaaS software is generally used for managing large-scale physical hardware, and (IaaS can manage little of a physical host, many to thousands of physical server) and the software and hardware resources (CPU needed for client, internal memory, network, storage etc.) provide with the form of " main frame " that (main frame here can be a platform independent physical host, but more situation is virtual machine, VirtualMachine is called for short VM).
The basic goal of IaaS is in that to calculate the pond of resource, (as on-demand) management and dispatching unified, intelligence.Calculate the pond of resource, namely all of resource be placed in a big pond and be managed according to less unit. Such as the hard disk of 100 1TB is placed in storage pool, this pond there has been the capacity of 100TB, when distribution storage, it is no longer be distributed with the such independent hard disk unit of 1TB, but a less capacity (such as 10GB, the unit of concrete distribution can be configured) can be distributed by IaaS. The Service of IaaS, is generally provide with the form of WebService, because being very easy to operation now.
The virtual machine that IaaS provides generally all can include at least an operating system that can connect to network (such as Linux, Windows). User can log in and operate virtual machine by network and resource distribution and use time according to virtual machine are paid. The computer that the operation that user carries out on a virtual machine has just installed operating system with regard to biconditional operation one playscript with stage directions ground is the same, and he can install more software (such as Apache, MySQL, SQL-Server, Python, GCC etc.) on a virtual machine. He can also load the program of oneself to complete more function (such as building a website or vpn server). User can also on-demand application memory space flexibly. Owing to these functions being supplied to user are all most basic computer functions, so by vivid, this service form is also just called that namely architecture services.
In the technical scheme of existing acquisition resources of virtual machine, when user or application need resources of virtual machine, it usually needs the bottom IaaS interface provided first is provided. After request received by IaaS platform, just go to create virtual machine according to the parameter comprised in request. After treating virtual machine creating, this establishment result and virtual machine information can be returned to PaaS by Iaas. After PaaS obtains the relevant information of virtual machine, need on the one hand virtual machine information input database, also face to be installed by the software required for some PaaS platform and user and environment on a virtual machine on the other hand. After being fully completed Deng these work, the information of virtual machine is returned to user or application by PaaS platform again, meets its demand.
Through this flow process is analyzed, inventors herein have recognized that: in the flow process of virtual machine creating, the time of the overwhelming majority all consumes in the built-in function of IaaS platform, and the time in PaaS, the installation of related software and the configuration of environment consumed only account for a little part. In order to improve PaaS platform in the face of the responding ability of resources of virtual machine demand, an aspect according to the application, PaaS platform realizes the following system obtaining resources of virtual machine: PaaS is when task is less, according to the Buffer Pool construction strategy that predefined is good, the interface calling IaaS creates virtual machine. After virtual machine creating, these virtual machine unified managements are just got up by PaaS platform, which forms the resources of virtual machine Buffer Pool in PaaS platform. When tenant applies for resources of virtual machine time, the resources of virtual machine in Buffer Pool just without IaaS, directly can be distributed to tenant by PaaS. And when tenant discharges resources of virtual machine time, PaaS does not destroy this virtual machine yet, but virtual machine is recovered in Buffer Pool again, in order to being continuing with next time.
In one embodiment, as shown in Figure 2, it is achieved the system of resources of virtual machine includes: management module, monitoring module, cluster virtual machine and message queue. In implementing at one, it is necessary to first define the flexible strategy of resource pool. This strategy major function is the virtual machine specifying various configurations higher limit in resource pool and lower limit, and the importance according to application and service specifies to use the priority of resource pool.
In one embodiment, the resource quantity of cluster virtual machine is carried out monitor in real time by monitoring module, if the resource quantity found in cluster virtual machine exceedes the threshold value in flexible strategy, then by management module, virtual machine quantity is carried out timely management and control.
In one embodiment, when tenant applies for resources of virtual machine, the management module of Buffer Pool, when meeting tenant's demand, distributes resources of virtual machine according to the priority of each tenant.
In one embodiment, tenant is when discharging resources of virtual machine, and virtual machine is reclaimed by Buffer Pool.
In one embodiment, monitoring module realizes mainly by the mode of installation agent software NodeAgent, is obtained the state of virtual machine by agent software, thus adding up the quantity of all kinds of virtual machine.
In one embodiment, management module Main Function has two aspects. One is according to the strategy customized and the data taken from monitoring module, and cluster virtual machine is carried out stretch/shrink operation; Two is mutual with tenant, provides/reclaim virtual machine according to its demand.
In one embodiment, message queue is to be realized by RabbitMQ. In Buffer Pool communication between modules and and other module of PaaS platform between information transmission all realized by message queue.
In one embodiment, the priority of the flexible tactful and all kinds of tenant of Buffer Pool can be defined by cloud platform, so also enhances motility while improve the stability of platform.
Therefore, when PaaS platform needs service carried out resource expansion or user proposes resource bid, avoid the need for creating new virtual machine by IaaS, but directly from resources of virtual machine Buffer Pool, directly take out existing virtual machine and use, to be greatly improved the capability of fast response of PaaS platform. It addition, when the application visit capacity of cloud platform is increased sharply, platform can be quickly corresponding, provides resources of virtual machine for application in time, it is ensured that the Quick Extended of application cluster and relevant rudimentary service. Improve the cloud platform ability at solution of emergent event, enhance stability and the suitability of platform. Finally, the technical scheme of the application also makes the coupling between PaaS and IaaS reduce, and enhances the function of PaaS, reduces the PaaS dependency to IaaS to a certain extent.
Above, the specific embodiment of the present invention is described with reference to the accompanying drawings. But, those skilled in the art are it is understood that when without departing from the spirit and scope of the present invention, it is also possible to the specific embodiment of the present invention is done various change and replacement. These change and replace and all drop in claims of the present invention limited range.
Claims (12)
1. the system obtaining resources of virtual machine realized in PaaS platform, described system includes:
Cluster virtual machine, described cluster virtual machine includes multiple resources of virtual machine;
Monitoring module, for carrying out monitor in real time to the resources of virtual machine quantity in described cluster virtual machine; And
Management module, for receiving the request of the resources of virtual machine from tenant, and the priority according to described tenant distributes described resources of virtual machine;
Wherein, when the quantity of described resources of virtual machine is lower than first threshold, described monitoring module messaging notice management module, and by described management module, resources of virtual machine quantity is carried out timely management and control.
2. the system as claimed in claim 1, wherein, when the quantity of described resources of virtual machine is lower than first threshold, described management module is by calling the bottom IaaS interface provided, and sends the request creating virtual machine.
3. system as claimed in claim 1 or 2, wherein, when the quantity of described resources of virtual machine is higher than Second Threshold, described management module stops calling the bottom IaaS interface provided.
4. the system as claimed in claim 1, wherein, described management module is configured to pre-set the cluster virtual machine including multiple resources of virtual machine when the system free time.
5. the system as claimed in claim 1, also includes:
Message queue, described message queue is provided to the communication between the module of described cluster virtual machine and described system or between module and module.
6. the system as claimed in claim 1, wherein, after described tenant discharges resources of virtual machine, described management module is configured to reclaim described resources of virtual machine.
7., based on the method obtaining resources of virtual machine of PaaS platform, described method includes:
In described PaaS platform, cluster virtual machine, monitoring module and management module are set, wherein said cluster virtual machine includes multiple resources of virtual machine, described monitoring module is for carrying out monitor in real time to the resources of virtual machine quantity in described cluster virtual machine, described management module is for receiving the request of the resources of virtual machine from tenant, and the priority according to described tenant distributes described resources of virtual machine; And
When the quantity of described resources of virtual machine is lower than first threshold, utilizes described monitoring module messaging notice management module, and utilize described management module that resources of virtual machine quantity is carried out timely management and control.
8. method as claimed in claim 7, wherein, when the quantity of described resources of virtual machine is lower than first threshold, utilizes described monitoring module messaging notice management module, and utilizes described management module that resources of virtual machine quantity is carried out timely management and control to include:
When the quantity of described resources of virtual machine is lower than first threshold, described management module is by calling the bottom IaaS interface provided, and sends the request creating virtual machine.
9. as claimed in claim 7 or 8 method, wherein, when the quantity of described resources of virtual machine is lower than first threshold, utilizes described monitoring module messaging notice management module, and utilizes described management module that resources of virtual machine quantity is carried out timely management and control to include:
When the quantity of described resources of virtual machine is higher than Second Threshold, described management module stops calling the bottom IaaS interface provided.
10. method as claimed in claim 7, also includes:
Described management module is utilized to pre-set, when the system free time, the cluster virtual machine including multiple resources of virtual machine.
11. method as claimed in claim 7, also include:
One message queue is set to provide the communication between the module of described cluster virtual machine and described system or between module and module.
12. method as claimed in claim 7, also include:
After described tenant discharges resources of virtual machine, described management module is utilized to be reclaimed by described resources of virtual machine.
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