CN103562852A - Method and device for guaranteeing quality of service of cloud application - Google Patents
Method and device for guaranteeing quality of service of cloud application Download PDFInfo
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- 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]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
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Abstract
Provided is a method for guaranteeing quality of service (QoS) of a cloud application, including: an upper-layer scheduling module determining the virtual machines (VMs) corresponding to at least two processes of a cloud application according to a QoS policy and a QoS restraint parameter; sending the QoS policy and the QoS restraint parameter to a lower-layer scheduling module so that the lower-layer scheduling module determines a physical machine (PM) for creating the VMs according to the QoS policy and the QoS restraint parameter. Accordingly, also provided is a device, solving the problem that the QoS of an application cannot be ensured since the upper and lower-layer modules perform scheduling separately, improving the reliability of guaranteeing QoS.
Description
The present embodiments relate to IT field, more particularly to a kind of method and apparatus for ensureing cloud application procedure service quality for the method and apparatus technical field of kind guarantee cloud application procedure service quality.
Background technology
The application environment of cloud computing can be divided into three layers, be cloud application, virtual resource management platform and physical equipment management platform respectively.Cloud application program refers to the program operated on cloud application layer, and one or more processes are included during operation, are likely distributed on one or more virtual machines (Virtual Machine, VM).Virtual resource management platform virtualizes physical resource, externally provides the virtual resources such as VM, VM cluster, virtual volume, virtual network.Wherein, VM clusters are the packets to VM, one VM cluster of each application program correspondence.There is provided the operation to physical machine (Physical Machine PM), such as installation, deployment, upgrading, power-on and power-off for physical equipment management platform.
With the development of cloud computing, to application service quality on cloud（Quality of Service, QoS) guarantee be increasingly taken seriously.In the prior art, QoS scheduling is completed by the scheduler module of virtual resource management platform.Scheduler module can be divided into upper strata scheduler module from cloud application to virtual resource management platform and from virtual resource management platform to lower floor's scheduler module of physical equipment management platform.Cloud application QoS guarantee is the fixation QoS templates of layer scheduler module offer on the lower to complete.Because two layers of scheduler module independently executes scheduling up and down, lack corresponding combined dispatching mechanism, so there will be two kinds of situations：
1st, it is the relation of host process and standby process between cloud application program process, upper strata scheduler module is by the host process virtual machine different from standby process placement, but lower floor's scheduler module will be different virtual
Machine is but created in identical physical machine, and so after physical machine delays machine, host process and standby process can be simultaneously closed off, and is caused the QoS of cloud application program and can not be ensured.
2nd, often communicated with each other between cloud application program process, it is desirable to which communication delay is small, and speed is fast.Therefore all processes are placed identical virtual machine by upper strata scheduler module, ensure that the speed of communication.But lower floor's scheduler module but creates the virtual machine in different physical machines, cause different processes in different physical machines, the time delay of communication is big, and speed is slow, it is impossible to ensure the QoS of cloud application program.The content of the invention
The present invention propose it is a kind of ensure cloud application service quality method and apparatus, solve above and below two layers of module be performed separately scheduling lead to not ensure cloud application program QoS the problem of.
Method provided in an embodiment of the present invention, including：
Upper strata scheduler module determines the corresponding virtual machine VM of at least two processes of cloud application program according to qos policy and QoS constrained parameters;
The qos policy and QoS constrained parameters are sent to lower floor's scheduler module, so that lower floor's scheduler module is according to the qos policy and QoS constrained parameters, it is determined that the physical machine PM for creating the VM.
The embodiment of the present invention also provides a kind of equipment for ensureing cloud application service quality, including：Determining unit, for according to qos policy and QoS constrained parameters, determining the corresponding virtual machine VM of at least two processes of cloud application program;
Transmitting element, the qos policy and QoS constrained parameters are sent to lower floor's scheduler module, so that lower floor's scheduler module is according to the qos policy and QoS constrained parameters, it is determined that the physical machine PM for creating the VM.
Pass through method provided in an embodiment of the present invention, apparatus and system, upper strata scheduler module expanding communication
Interface, sends VM to be dispatched QoS constrained parameters to lower floor's scheduler module, and lower module creates the VM on a PM for meeting QoS constrained parameters, realize above and below two layers of scheduler module combined dispatching.Two layers of module is performed separately the problem of scheduling leads to not ensure cloud application program QoS above and below solving, and improves the reliability for ensureing QoS.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the method flow diagram of the embodiment of the present invention one；
Fig. 2 is the method flow diagram of the embodiment of the present invention two；
Fig. 3 is the controlling equipment structure chart of the embodiment of the present invention three；
Fig. 4 is the equipment structure chart of the embodiment of the present invention four.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made belongs to the scope of protection of the invention.
In order to be better understood from the embodiment of the present invention, it is necessary to introduce the system architecture of the present invention, system architecture can be divided into cloud application layer, cluster virtual machine, physical machine cluster, upper strata scheduler module and lower floor's scheduler module：
Cloud application layer, for providing cloud application program to user, wherein cloud application program bag contains multiple processes, and process needs to create on a virtual machine, can be process one virtual machine of correspondence or multiple processes one virtual machine of correspondence；
Cluster virtual machine, provides virtual machine for the process to cloud application program, collects many virtual machines of group representation.Wherein, virtual machine is created by physical machine again, can be virtual machine one physical machine of correspondence or many virtual machine one physical machine of correspondence；
Physical machine cluster, for creating virtual machine, physical entity is provided for cloud application.
Upper strata scheduler module, it is responsible for the scheduling of cloud application layer and cluster virtual machine, when the cloud application program QoS of cloud application layer can not be ensured, it is necessary to dispatch new virtual machine on cluster virtual machine, so that new virtual machine provides the resource of cloud application program, the QoS of cloud application program is ensured;
Lower floor's scheduler module, it is responsible for the scheduling of cluster virtual machine and physical machine cluster, when cluster virtual machine can not provide the guarantee of cloud application program, need to create new physical machine on physical machine cluster, and new virtual machine is supplied to cluster virtual machine, the QoS for being responsible for cloud application program by upper strata scheduler module is ensured.
The embodiment of the present invention one
As shown in figure 1, in the embodiment of the present invention, the flow that levels scheduler module carries out combined dispatching is as follows:
S101, upper strata scheduler module determine the corresponding VM of at least two processes of cloud application program according to qos policy and QoS constrained parameters;
Qos policy can be alternative constraint or relevance constraint.Wherein, more than two processes are placed on different VM by alternative constraint representation, and different VM are created on different PM;More than two processes are placed on same VM by relevance constraint representation.QoS constrained parameters
It can be virtual center processor（Virtual Central Processing Unit, VCPU) number or memory demand.
Upper strata scheduler module determines the corresponding VM of process of cloud application according to qos policy and QoS constrained parameters.If qos policy is alternative constraint, different processes needs to be placed on different VM；If qos policy is relevance constraint, different processes needs to be placed on identical VM, and the VM of the determination must is fulfilled for QoS constrained parameters.
S102, the qos policy and QoS constrained parameters sent to lower floor's scheduler module, so that lower floor's scheduler module is according to the qos policy and QoS constrained parameters, it is determined that the PM for creating VM.
Lower floor's scheduler module is received after qos policy and QoS constraints, is determined that the VM is created on corresponding PM, is specially：If qos policy constrains for alternative, different VM are created on different PM;A VM, PM and VM, which are created, if qos policy constrains for relevance, on a PM is satisfied by qos policy and QoS constrained parameters.
In the present embodiment, upper strata scheduler module sends VM to be dispatched QoS constrained parameters to lower floor's scheduler module, and lower module creates the VM on a PM for meeting QoS constrained parameters, realize above and below two layers of scheduler module combined dispatching.Two layers of module is performed separately the problem of scheduling leads to not ensure cloud application program QoS above and below solving, and improves the reliability for ensureing QoS.
The embodiment of the present invention two
In the embodiment of the present invention, upper strata scheduler module sends QoS constraints policies and the flow of QoS constrained parameters to lower floor's scheduler module is as follows：
S201, upper strata scheduler module obtain qos policy；
In order to ensure the QoS of cloud application program, upper strata scheduler module needs to obtain qos policy. QoS
What strategy was represented in the present embodiment is cloud application program process correspondence VM alternative constraint, Ke Yiwei：Specified two or more processes are placed on different VM, and specified two or more VM are placed on different PM.For example, cloud application program to be run has 2 processes, respectively Pl, P2, and PI is host process, and P2 is P1 standby process.If that create P1 and P2 is same VM, when the VM failures, P1 and P2 are simultaneously switched off, it is impossible to run cloud application program, and QoS also can not just be ensured.In order to ensure backup, it can require that it is different VM, respectively VM1 and VM2 to create P1 VM with the VM for creating P2.So, when VM1 failures, P1 disconnects, then the P2 that VM2 is created can substitute P1.If VM1, VM2 are located on same PM, after the PM delays machine, VM1 and VM2 are simultaneously switched off, then P1 and P2 are also simultaneously switched off.From the above mentioned, it is known that upper strata scheduler module obtain qos policy be：
1st, process P1 correspondences VM1, VM1 correspondences PM1;
2nd, process P2 correspondences VM2, VM2 correspondences PM2;
3rd, VM1 and VM2 is different virtual machine, and PM1 and PM2 are different physical machines.
5202nd, cloud application program resource demand is obtained, VM and PM QoS constrained parameters are determined；QoS constrained parameters can be VCPU demands number or memory size in the present embodiment.VCPU demands number or the demand size of internal memory that upper strata scheduler module needs when can be run according to cloud application program process, determine VM and PM VCPU numbers or free memory size.For example, P1 needs VCPU numbers to be 1, or memory demand is 2G;P2 needs VCPU numbers to be 2, or memory demand is 3G.Then the minimum numbers of VM1 and PM1 VCPU are 1, or the minimum numbers of VCPU that free memory minimum value is 2G, VM2 and PM2 are 2, or free memory minimum value is 3G.
5203rd, upper strata scheduler module sends QoS constraints policies and QoS constrained parameters to lower floor's scheduler module；
After QoS constraints policies and QoS constrained parameters is determined, upper strata scheduler module sends QoS constraints policies and QoS constrained parameters to lower floor's scheduler module, specific sending method can be the communication interface for extending levels scheduler module, and the embodiment of the present invention is not limited specific sending method.
5204th, lower floor's scheduler module determines the corresponding PM of VM according to qos policy and QoS constrained parameters, and creates on PM VM;
Because qos policy is restrictive strategy, lower module is received after the QoS constraints policies and QoS constrained parameters of upper layer module transmission, determine two PM, respectively PM1 and PM2, and the PM1 and PM2 number minimum value for creating VCPU is respectively 1 and 2, or the minimum value of internal memory is respectively 2G and 3G.
Determine after PM1 and PM2, according to QoS constraints policies, VM1 is created on PM1, VM2 is created on PM2, wherein VM1 is met：The minimum numbers of VCPU are 1, or free memory minimum value is 2G.VM2 is met：The minimum numbers of VCPU are 2, or free memory minimum value is 3G.
VM1 and PM1, VM2 and PM2 are satisfied by QoS constrained parameters, so ensure that the QoS of cloud application program, and ensure that P2 is P1 backup, when VM1 or PM1 failures cause P1 to close, and P2 can replace P1.
5205th, upper strata scheduler module creates cloud application program process on VM, ensures the QoS of cloud application program.
Lower module, which is returned, creates success message to upper strata scheduler module, and upper strata scheduler module is received after the message, and process is created on newly-built VM, is specially：P1 is created on VM1, P2 is created on VM2.Because stock number needed for P1 and P2 operations is protected, therefore the QoS of cloud application program is protected.
In the present embodiment, upper strata scheduler module QoS constrained parameters and QoS constraints policies to lower floor adjust
Spend module, lower module create VM it is determined that PM on, realize above and below two layers of scheduler module combined dispatching.Two layers of module is performed separately the problem of scheduling leads to not ensure cloud application program QoS above and below solving, and improves the reliability for ensureing QoS.
The embodiment of the present invention three
In the embodiment of the present invention, upper strata scheduler module sends QoS constraints policies and the flow of QoS constrained parameters to lower floor's scheduler module is as follows：
5301st, upper strata scheduler module obtains qos policy；
In order to ensure the QoS of cloud application program, upper strata scheduler module needs to obtain qos policy.What QoS strategies were represented in the present embodiment is cloud application program process correspondence VM relevance constraint, Ke Yiwei：Specified two or more processes are placed on same VM, and specified two or more VM are placed on same PM.For example, cloud application program to be run has 2 processes, respectively Pl, P2, and P1 and P2 communicate frequently each other.If create P1 and P2 is when different VM, P1 and P2 are communicated, it is necessary to be communicated between different VM, influenceed because communication can have time delay etc., therefore P1 and P2 communication efficiencies are low.Therefore require that it is same VM to create P1 VM and establishment P2 VM, is named as VM1 here.So, under same VM, P1 and P2 communication efficiency are high.One VM can only be created on a PM, and the PM for creating VM1 is named as PM1 here.From the above mentioned, it is known that upper strata scheduler module obtain qos policy be：
Process P1 VM1 corresponding with P2, VM1 correspondences P1.
5302nd, cloud application program resource demand is obtained, VM and PM QoS constrained parameters are determined；In the present embodiment, QoS constrained parameters can be VCPU demands number or memory size.Upper strata scheduler module can determine VM and PM VCPU numbers or free memory size according to the corresponding VCPU demands number of cloud application program process or the demand size of internal memory.For example, P1 needs
VCPU numbers are 1, or memory demand is 2G;P2 needs VCPU numbers to be 2, or memory demand is 3G.The VCPU number sums that then P1 and P2 corresponding VM and PM VCPU most third constellations numbers need for P1 and P2, as 3, or the internal memory sum that free memory minimum value is P1 and P2 needs, as 5G.
The same S203 of S303.
5304th, lower floor's scheduler module determines the corresponding PM of VM according to qos policy and QoS constrained parameters, and creates on PM VM;
Because qos policy is relevance constraint, lower module is received after the QoS constraints policies and QoS constrained parameters of upper layer module transmission, determines a PM, and the number minimum value for creating VCPU of the PM is 3, or the minimum value of internal memory is 5G.
Determine after PM, according to qos policy, VM1 is created on PM, wherein VM1 is met：The minimum numbers of VCPU are 3, or free memory minimum value is 5G.
This way it is ensured that the efficiency that P1 and P2 are in communication with each other, reduces the time delay between communication.
5305th, upper strata scheduler module creates cloud application program process on VM, ensures the QoS of cloud application program.
Lower module, which is returned, creates success message to upper strata scheduler module, and upper strata scheduler module is received after the message, and process is created on newly-built VM.Because stock number needed for P1 and P2 operations is protected, therefore the QoS of cloud application program is protected.
In the present embodiment, upper strata scheduler module QoS constrained parameters and QoS constraints policies to lower floor's scheduler module, lower module create VM it is determined that PM on, realize above and below two layers of scheduler module combined dispatching.Two layers of module is performed separately the problem of scheduling leads to not ensure cloud application program QoS above and below solving, and improves the reliability for ensureing QoS.
The embodiment of the present invention four
As shown in figure 4, in the embodiment of the present invention, ensureing that cloud application program QoS device structure is as follows：Determining unit 401, for according to qos policy and QoS constrained parameters, determining the corresponding VM of at least two processes of cloud application program;
Qos policy can be alternative constraint or relevance constraint.Wherein, more than two processes are placed on different VM by alternative constraint representation, and different VM are created on different PM;More than two processes are placed on same VM by relevance constraint representation.QoS constrained parameters can be virtual center processor（Virtual Central Processing Unit, VCPU) number or memory demand.
Determining unit 401 determines the corresponding VM of process of cloud application according to qos policy and QoS constrained parameters.If QoS strategies are alternative constraints, different processes needs to be placed on different VM；If qos policy is relevance constraint, different processes needs to be placed on identical VM, and the VM of the determination must is fulfilled for QoS constrained parameters.
Transmitting element 402, for the qos policy and QoS constrained parameters to be sent to lower floor's scheduler module, so that lower floor's scheduler module is according to the qos policy and QoS constrained parameters, it is determined that the physical machine PM for creating the VM.
Lower floor's scheduler module is received after qos policy and QoS constraints, is determined that the VM is created on corresponding PM, is specially：If qos policy constrains for alternative, different VM are created on different PM;A VM, PM and VM, which are created, if qos policy constrains for relevance, on a PM is satisfied by qos policy and QoS constrained parameters.
In the present embodiment, QoS constrained parameters to the lower floor that transmitting element sends VM to be dispatched dispatches
Module, lower floor's scheduler module creates the VM on a PM for meeting QoS constrained parameters, realize above and below two layers of scheduler module combined dispatching.Two layers of module is performed separately the problem of scheduling leads to not ensure cloud application program QoS above and below solving, and improves the reliability for ensureing QoS.It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description, the specific work process of equipment and unit may be referred to the corresponding process in preceding method embodiment, no longer Redundant is stated herein.
One of ordinary skill in the art will appreciate that：Accompanying drawing is necessary to unit or flow in the schematic diagram of one embodiment, accompanying drawing not necessarily implements the present invention.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, apparatus embodiments described above are only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of equipment or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.
The unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units be integrated in
In one unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Perform the part steps of each embodiment methods described of the invention.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（Read-Only Memory, abbreviation ROM), random access memory（Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (1)
- Claims1st, a kind of method for ensureing cloud application procedure service quality Q oS, it is characterised in that including：Upper strata scheduler module determines the corresponding virtual machine VM of at least two processes of cloud application program according to qos policy and QoS constrained parameters;The qos policy and QoS constrained parameters are sent to lower floor's scheduler module, so that lower floor's scheduler module is according to the qos policy and QoS constrained parameters, it is determined that the physical machine PM for creating the VM.2nd, according to the method described in claim 1, it is characterised in that the QoS constrained parameters include described VM, PM VCPU numbers, or described VM, PM free memory size.3rd, method according to claim 1 or 2, it is characterised in that the qos policy constrains for alternative, the corresponding VM of at least two processes for determining cloud application program, including：At least two process creations of the cloud application program are determined on specified different VM, the VM meets the QoS constrained parameters.4th, the method according to any one of claim 3, it is characterised in that lower floor's scheduler module determines the physical machine PM for creating VM, including：Determine that the different VM specified are created on different PM, the PM meets the QoS constrained parameters.5th, method according to claim 1 or 2, it is characterised in that the qos policy constrains for relevance, the corresponding VM of at least two processes for determining cloud application program, including：Determine at least two process creations of the cloud application program on a specified VM.6th, a kind of equipment for ensureing cloud application procedure service quality Q oS, it is characterised in that including：Determining unit, for according to qos policy and QoS constrained parameters, determining cloud application program The corresponding virtual machine VM of at least two processes;Transmitting element, the qos policy and QoS constrained parameters are sent to lower floor's scheduler module, so that lower floor's scheduler module is according to the qos policy and QoS constrained parameters, it is determined that the physical machine PM for creating the VM.7th, equipment according to claim 6, it is characterised in that the QoS constrained parameters include described VM, PM VCPU numbers, or described VM, PM free memory size.8th, the equipment according to claim 6 or 7, it is characterised in that the qos policy is to include：At least two process creations of the cloud application program are determined on specified different VM, the VM meets the QoS constrained parameters.9th, the equipment according to claim 6 or 7, it is characterised in that the qos policy is to include：Determine that at least two process creations of the cloud application program are described on a specified VM
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