WO2023162000A1 - リソース決定装置、方法およびプログラム - Google Patents
リソース決定装置、方法およびプログラム Download PDFInfo
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- WO2023162000A1 WO2023162000A1 PCT/JP2022/007259 JP2022007259W WO2023162000A1 WO 2023162000 A1 WO2023162000 A1 WO 2023162000A1 JP 2022007259 W JP2022007259 W JP 2022007259W WO 2023162000 A1 WO2023162000 A1 WO 2023162000A1
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- 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]
- 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
- G06F9/5055—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 considering software capabilities, i.e. software resources associated or available to the machine
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- 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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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- 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]
- G06F9/5061—Partitioning or combining of resources
- G06F9/5077—Logical partitioning of resources; Management or configuration of virtualized resources
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2209/00—Indexing scheme relating to G06F9/00
- G06F2209/50—Indexing scheme relating to G06F9/50
- G06F2209/5019—Workload prediction
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- 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
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
Definitions
- Embodiments of the present invention relate to a resource determination device, method and program.
- Auto-scaling is used relatively often to control the resources of server computers (see, for example, Non-Patent Documents 1 and 2).
- resource adjustment is based on the real-time state of VM (Virtual Machine), which is an instance, for example (CPU (Central Processing Unit) usage rate, etc.) decide.
- VM Virtual Machine
- CPU Central Processing Unit
- the present invention has been made in view of the above circumstances, and its object is to provide a resource determination device, method, and program capable of appropriately determining resources according to the state of an instance. That's what it is.
- a resource determination device shows a relationship between a processing load allocated to a virtual machine, resource allocation of the virtual machine, and a predicted value of quality when the processing load is allocated to the virtual machine.
- a model storage device in which a model to be stored is stored; and a determination that determines whether the predicted quality value in the model meets appropriate quality requirements assuming that a new processing load is placed on the virtual machine. and changing the resource allocation of the virtual machine so that the predicted value satisfies the appropriate quality requirement when the determination unit determines that the predicted value does not satisfy the appropriate quality requirement.
- a control unit for controlling for controlling.
- a resource determination method shows a relationship between a processing load allocated to a virtual machine, resource allocation of the virtual machine, and a predicted value of quality when the processing load is allocated to the virtual machine.
- a method performed by a resource determination device comprising a storage device in which a model to be executed is stored, wherein the determination unit of the resource determination device assumes that a new processing load is allocated to the virtual machine in the model. Determining whether the predicted value of quality satisfies the requirements of suitable quality; controlling changes in resource allocation of the virtual machine such that the predicted value meets the appropriate quality requirement when
- resources can be determined appropriately according to the state of the instance.
- FIG. 1 is a diagram showing an application example of a resource determination system (system) according to an embodiment of the present invention.
- FIG. 2 is a diagram showing an example of input/output data (data) of a Web conference quality model (model).
- FIG. 3 is a sequence diagram showing an example of a procedure for vertical scale by a resource determination device according to an embodiment of the present invention.
- FIG. 4 is a sequence diagram showing an example of a procedure for horizontal scaling by the resource determination device according to one embodiment of the present invention.
- FIG. 5 is a diagram showing a specific example of a vertical scale according to web conference quality.
- FIG. 6 is a diagram showing a specific example of a vertical scale according to web conference quality.
- FIG. 7 is a diagram showing a specific example of a vertical scale according to web conference quality.
- FIG. 8 is a diagram showing a specific example of horizontal scale according to Web conference quality.
- FIG. 9 is a diagram showing a specific example of horizontal scale according to Web conference quality.
- FIG. 10 is a diagram showing a specific example of a horizontal scale according to web conference quality.
- FIG. 11 is a diagram showing a specific example of horizontal scale according to Web conference quality.
- FIG. 12 is a diagram showing a specific example of a horizontal scale according to web conference quality.
- FIG. 13 is a block diagram showing an example of the hardware configuration of the resource determination device according to one embodiment of the present invention.
- FIG. 1 is a diagram showing an application example of a resource determination system according to one embodiment of the present invention.
- the resource determination system according to one embodiment of the present invention has a web conference scheduling device 100 as a resource determination device and a cloud resource controller 200 .
- the web conference scheduling device 100 has a web conference scheduler (scheduler) 10, a web conference reservation storage unit 20, and a web conference arrangement unit 30.
- the web conference scheduler 10 also has a controller 11 , an instance (VM) state monitoring unit 12 , and a web conference quality model DB (database) 13 .
- a database (not shown) of the Web conference reservation storage unit 20 stores reservation information indicating reservation details of a Web conference that has been reserved and has not yet ended, that is, a new Web conference, that is, reservation information of a new processing load.
- This reservation information includes, for example, identification information (ID (IDentifier)) assigned to each piece of reservation information, the expected number of participants in the reserved Web conference, and information on the scheduled time slot for the Web conference.
- ID IDentifier
- a user who wants to reserve a new web conference can use an interface (not shown) connectable to the web conference scheduler 10 to send a web conference reservation request to the web conference scheduler 10 .
- the Web conference scheduler 10 When receiving this reservation request, the Web conference scheduler 10 saves the reservation information related to this request in the Web conference reservation storage unit 20 ((1-1) in FIG. 1), and then includes this saved reservation information. , reservation information indicating the content of the Web conference that has been reserved and has not yet ended is obtained ((1-2) in FIG. 1).
- This reservation information indicates the processing load related to the web conference arranged in the VM (hereinafter sometimes referred to as web conference load), for example, the number of participants in the web conference, and information related to the scheduled holding time slot.
- the controller 11 of the web conference scheduler 10 acquires the reservation information
- the controller 11 of the web conference scheduler 10 acquires the status of each VM, which is an instance used for the web conference, for example, the setting status of resources in the VM in which the web conference is arranged, for example, the core of the CPU.
- the instance status monitoring unit 12 is inquired about the number and memory capacity, and the inquired information is obtained.
- each VM is assumed to be a virtual machine operated on the cloud.
- the controller 11 inputs the information obtained from the instance status monitoring unit 12 into the web conference quality model in the web conference quality model DB 13.
- the Web conference quality model inputs information indicating the resource setting status in the VM where the Web conference is arranged, and the processing load related to the Web conference arranged in the VM and the Web conference assumed to be arranged in the VM. , a predicted value of user experience quality for a web conference deployed in a VM, and the input-output relationship can be learned in advance.
- the controller 11 When the predicted value of the user experience quality output from the Web conference quality model does not satisfy the predetermined conditions of the user experience quality, the controller 11 performs the web conference so that the user experience quality satisfies the above conditions. is recommended to the system administrator to adjust the resources of the VM in which is arranged ((2) in FIG. 1). In addition, the controller 11 instructs the Web conference placement unit 30 to place the Web conference in the VM where the Web conference is arranged so that the user experience quality satisfies the above conditions (( 4-1)).
- the system administrator operates the cloud resource controller 200 to give an instruction regarding resource adjustment ((3-1) in FIG. 1).
- the cloud resource controller 200 can start a new VM (see symbol a in FIG. 1) where the Web conference is arranged, or change the resources of this VM ((3 in FIG. 1). -2)).
- the Web conference arrangement unit 30 arranges the Web conference in the VM according to the above instructions, so that the Web conference can be started ((4-2) in FIG. 1).
- the controller 11 of the web conference scheduler 10 receives from the instance status monitoring unit 12 (1) the web conference load, which is the processing load associated with the web conference placed in the VM and the web conference assumed to be placed in the VM, (2 ) Acquire the cloud resource setting, which is the resource setting status in the VM where the web conference is arranged, and input this acquisition result into the web conference quality model as an explanatory variable.
- the web conference load which is the processing load associated with the web conference placed in the VM and the web conference assumed to be placed in the VM
- the cloud resource setting which is the resource setting status in the VM where the web conference is arranged
- the processing load associated with the Web conference is, for example, the number of Web conferences, the number of participants in the Web conference, the number of publishers participating in the Web conference, the number of subscribers, and the like.
- the setting status of the resources is, for example, the number of CPUs, the amount of memory, etc. provided in the VM, which is an instance.
- the web conference quality model can output an index representing the quality of the web conference (user experience quality), that is, a predicted value of the quality of the web conference, as the objective variable.
- regression analysis methods such as Neural-Network Regression, Linear Regression, Random Forest Regression, etc.
- the parameters of this model are set so that this input-output relationship is appropriate, that is, the predicted value of the quality of the Web conference is It can be learned to approach correct information.
- the index representing the quality of the Web conference is, for example, the predicted value of the CPU usage rate, jitter, throughput, and MOS (Mean Opinion Score), etc.
- FIG. 2 is a diagram showing an example of input/output data of the Web conference quality model.
- the QoE is calculated according to the reservation of a new Web conference.
- the web conference load indicated by the information entered into the web conference model is (1) the web conference load associated with current ongoing web conferences, and (2) the number of new web conferences. It includes the Web conference load related to the future 10-minute Web conference reservation, which is the reservation of the Web conference to be started 10 minutes after the current time according to the request (see symbol a in FIG. 2).
- the 10 minutes which is the time from the current time to the scheduled start time related to the Web conference reservation for the future 10 minutes, can be customized according to the actual operational status of the instance.
- the web conference load related to the current ongoing web conference is the identification information (ID) that uniquely identifies the web conference, the number of participants in the web conference, and the start time of the web conference. to the end time.
- ID identification information
- the above web conference load related to the web conference reservation for 10 minutes in the future is the identification information that uniquely identifies the web conference, the number of expected participants of the web conference, and the scheduled start time of the web conference. It may include a window of time until the scheduled time.
- the cloud resource settings entered in the web conference model described above may include the number of CPUs installed in one VM, which is an instance. The current ongoing web conference is located in the one VM.
- the index related to the quality of the web conference output from the above web conference model includes identification information that uniquely identifies the corresponding web conference, and the CPU usage rate of the above one VM due to the current web conference in progress. , the predicted value of the CPU usage rate of the one VM by the Web conference held by the new conference request, and the time period from the start to the end of each Web conference.
- the predicted value of the CPU usage rate of the VM is 50%. is. Also, in the example shown in FIG. 2, when it is assumed that "Web conference a" with the identification information "a" is newly arranged for the one VM, the usage rate of the CPU of the VM is is 10%.
- This "Web conference a" is a new Web conference that has been requested to be held in a time period that partially overlaps with the time period of "Web conference p".
- FIG. 3 is a sequence diagram showing an example of procedures related to vertical scaling by the resource determination device according to one embodiment of the present invention.
- the example shown in FIG. 3 shows the flow of each process when performing vertical scaling by the Web conference scheduler.
- the controller 11 of the web conference scheduler 10 acquires the currently held web conference and the newly requested conference reservation information from the web conference reservation storage unit 20 as the web conference load (S11).
- the controller 11 inquires of the instance status monitoring unit 12 about cloud resource settings, which are the status of each existing VM on which a Web conference has already been arranged, and acquires them (S12).
- the controller 11 inputs the results obtained in S11 and S12 to the Web conference quality model, so that the change in the user experience quality when it is assumed that the requested Web conference is newly arranged in one of the existing VMs. and obtains the output result from the Web conference quality model as the predicted value (S13).
- the controller 11 compares this predicted value with a Scale-up user quality of experience threshold, and if the predicted value does not exceed the threshold, the requested web conference can be placed on the corresponding existing instance (VM). Judged as possible. In this case, no resource adjustments are made with respect to the placement of the requested web conference.
- the controller 11 recommends Scale-up as a vertical scale to the system administrator (S14, S15), and sets the VM to which the Web conference requested from each existing VM is to be arranged. Then, the Web conference placement unit 30 is instructed to place the requested Web conference on the set VM (S16). That is, when it is determined that the predicted value does not satisfy the appropriate quality requirement, the controller 11 controls the change of the virtual machine resource allocation so that the predicted value satisfies the appropriate quality requirement.
- the system administrator instructs the cloud resource controller 200 to scale up the resource of each VM according to the recommendation from the controller 11 (S17).
- the cloud resource controller 200 executes control necessary for implementing the above Scale-up. This scale-up allows expansion of VM resources, for example, an increase in the number of CPU cores.
- the controller 11 recommends Scale-down of the instance to the system administrator (S18).
- the system administrator instructs the cloud resource controller 200 to scale down the resource of each VM according to the recommendation from the controller 11 (S19).
- the cloud resource controller 200 executes control necessary for implementing the above-described Scale-down.
- FIG. 4 is a sequence diagram showing an example of a procedure for horizontal scaling by the resource determination device according to one embodiment of the present invention.
- the example shown in FIG. 4 shows the flow of each process when performing horizontal scaling by the Web conference scheduler.
- the controller 11 of the web conference scheduler 10 acquires the currently held web conference and the newly requested conference reservation information from the web conference reservation storage unit 20 as the web conference load (S31).
- the controller 11 inquires of the instance status monitoring unit 12 about cloud resource settings, which are the status of each existing VM on which a Web conference has already been arranged, and acquires this (S32).
- the controller 11 inputs the results obtained in S31 and S32 to the Web conference quality model, and predicts the user experience quality when assuming that the requested Web conference is newly arranged in one of the existing VMs. A value is inquired, and an output result is obtained from the Web conference quality model as the predicted value (S33).
- the controller 11 compares this predicted value with a Scale-up user quality of experience threshold, and if the predicted value does not exceed the threshold, the requested web conference can be placed on the corresponding existing instance (VM). Judged as possible. In this case, no resource adjustments are made with respect to the placement of the requested web conference.
- the controller 11 recommends Scale-out as a vertical scale to the system administrator (S34, S35), and creates a new VM, which is different from the existing VMs, for the location of the requested Web conference. Then, the Web conference placement unit 30 is instructed to place the requested Web conference on the set VM (S36).
- the system administrator instructs the cloud resource controller 200 to scale-out the VM resource according to the recommendation from the controller 11 (S37).
- the cloud resource controller 200 executes control necessary for implementing the above Scale-out. This scale-up allows addition of VM resources, for example, addition of new VMs to existing VMs.
- the controller 11 accesses the web conference placement unit 30 to confirm whether or not there is a web conference to be placed in the added VM, and When the Web conference is not arranged for a long period of time, the controller 11 recommends Scale-in to suspend the VM to the system administrator (S38).
- the system administrator instructs the cloud resource controller 200 to scale-in the VM resource in question according to the recommendation from the controller 11 (S39).
- the cloud resource controller 200 executes control necessary for implementing the above Scale-in.
- 5 to 7 are diagrams showing specific examples of vertical scale according to Web conference quality.
- the existing instance "instance A” is a VM with 2 CPU cores, and an existing Web conference placed in this VM from 8:55.
- An example is shown where the current CPU utilization estimate by "meeting X" is 75% and the upper bound for CPU utilization in this VM is 80%. This upper limit is the CPU usage rate to satisfy the user quality of experience.
- the predicted increase in the CPU usage rate when it is assumed that "meeting A” and “meeting B” are newly arranged in “instance A” is 5%.
- the overall CPU usage rate is 63%, which does not exceed the upper limit, so “meeting B” is newly arranged in “instance A”, and this "meeting B” is added to the existing web conference "meeting X ” and previously placed “Meeting A”.
- 8 to 12 are diagrams showing specific examples of horizontal scales according to Web conference quality.
- the predicted value of the current CPU usage rate by the existing Web conference "Meeting X" placed in the VM that is the existing instance "Instance A" from 8:55 is 75% and the upper bound for CPU utilization in this VM is 80%.
- the predicted value of the CPU usage rate is 10% when assuming that "meeting B” is newly arranged in addition to “meeting A" in the new "instance B", Since the overall CPU usage rate is 45% and does not exceed the upper limit, "meeting B” is newly arranged in “instance B”, and this "meeting B” becomes the existing Web conference "meeting X" and It can be held together with the previously arranged web conference "meeting A".
- FIG. 13 is a block diagram showing an example of the hardware configuration of the resource determination device according to one embodiment of the present invention.
- the web conference scheduling apparatus 100 according to the above embodiment is configured by, for example, a server computer or a personal computer, and has a hardware processor such as a CPU. 111A.
- a program memory 111B, a data memory 112, an input/output interface 113 and a communication interface 114 are connected to the hardware processor 111A via a bus 115.
- FIG. The same applies to the cloud resource controller 200 as well.
- the communication interface 114 includes, for example, one or more wireless communication interface units, and allows information to be sent and received to and from a communication network NW.
- a wireless interface an interface adopting a low-power wireless data communication standard such as a wireless LAN (Local Area Network) is used.
- the input/output interface 113 is connected to an input device 500 and an output device 600 attached to the Web conference scheduling apparatus 100 and used by users or the like.
- the input/output interface 113 captures operation data input by a user or the like through an input device 500 such as a keyboard, touch panel, touchpad, mouse, etc., and outputs output data to a liquid crystal display.
- processing for outputting to an output device 600 including a display device using organic EL (Electro Luminescence) or the like for display is performed.
- Devices built into the Web conference scheduling apparatus 100 may be used as the input device 500 and the output device 600, and other information terminals capable of communicating with the Web conference scheduling apparatus 100 via the network NW. of input and output devices may be used.
- the program memory 111B is a non-temporary tangible storage medium, for example, a non-volatile memory that can be written and read at any time, such as a HDD (Hard Disk Drive) or SSD (Solid State Drive), It is used in combination with a nonvolatile memory such as ROM (Read Only Memory), and stores programs necessary for executing various control processes and the like according to one embodiment.
- a non-volatile memory such as a HDD (Hard Disk Drive) or SSD (Solid State Drive)
- ROM Read Only Memory
- the data memory 112 is used as a tangible storage medium, for example, by combining the above nonvolatile memory and a volatile memory such as RAM (random access memory), and various processes are performed. It is used to store various data acquired and created in the process.
- RAM random access memory
- a web conference scheduling device 100 has a web conference scheduler 10, a web conference reservation storage unit 20, and a web conference arrangement unit 30 shown in FIG. 1 as software processing function units. It may be configured as a data processing device.
- Each information storage unit used as a working memory by each unit of the Web conference scheduling device 100 can be configured by using the data memory 112 shown in FIG.
- these configured storage areas are not essential components in the Web conference scheduling device 100, and for example, an external storage medium such as a USB (Universal Serial Bus) memory, or a database server located in the cloud. It may be an area provided in a storage device such as (database server).
- the processing function units in each unit of the Web conference scheduler 10, the Web conference reservation storage unit 20, and the Web conference arrangement unit 30 all cause the hardware processor 111A to read and execute the programs stored in the program memory 111B. It can be realized by Some or all of these processing functions may be implemented in a variety of other forms, including integrated circuits such as Application Specific Integrated Circuits (ASICs) or Field-Programmable Gate Arrays (FPGAs). may be implemented.
- ASICs Application Specific Integrated Circuits
- FPGAs Field-Programmable Gate Arrays
- a model representing the relationship between cloud resources, the processing load of the Web conferencing service, and the quality of user experience is constructed, and when the reserved Web conference is placed in the VM, the user experience index If it is not satisfied, the resource is controlled by horizontal scale or vertical scale so as to satisfy this index. Therefore, it is possible to determine the optimum resource in consideration of the user experience quality.
- each embodiment can be applied to a program (software means) that can be executed by a computer (computer), such as a magnetic disk (floppy disk, hard disk). etc.), optical discs (CD-ROM, DVD, MO, etc.), semiconductor memory (ROM, RAM, flash memory, etc.) and other recording media, or transmitted and distributed via communication media can be
- the programs stored on the medium also include a setting program for configuring software means (including not only execution programs but also tables and data structures) to be executed by the computer.
- a computer that realizes this device reads a program recorded on a recording medium, and optionally builds software means by a setting program, and executes the above-described processing by controlling the operation by this software means.
- the term "recording medium” as used herein is not limited to those for distribution, and includes storage media such as magnetic disks, semiconductor memories, etc. provided in computers or devices connected via a network.
- the present invention is not limited to the above-described embodiments, and can be variously modified in the implementation stage without departing from the gist of the present invention. Further, each embodiment may be implemented in combination as appropriate, in which case the combined effect can be obtained. Furthermore, various inventions are included in the above embodiments, and various inventions can be extracted by combinations selected from a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiments, if the problem can be solved and effects can be obtained, the configuration with the constituent elements deleted can be extracted as an invention.
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Abstract
Description
また、オートスケーリングにはdeadlineやbudgetを考慮した多くの技術が存在するが、ユーザ(user)体感品質の要件は考慮されていなかった。
図1は、本発明の一実施形態に係るリソース決定システムの適用例を示す図である。
図1に示されるように、本発明の一実施形態に係るリソース決定システムは、リソース決定装置であるWeb会議スケジューリング(scheduling)装置100、およびクラウドリソースコントローラ(cloud resource controller)200を有する。
あわせて、コントローラ11は、ユーザ体感品質が上記条件を満たすようにするための、Web会議の配置先であるVMへの当該Web会議の配置をWeb会議配置部30に指示する(図1の(4-1))。
クラウドリソースコントローラ200は、この指示に従い、Web会議が配置される新たなVM(図1の符号a参照)を起動したり、このVMのリソースを変更したりすることができる(図1の(3-2))。
Web会議配置部30は、上記指示に従って、Web会議をVMに配置して、当該Web会議を開始できるようにする(図1の(4-2))。
Web会議スケジューラ10のコントローラ11は、インスタンス状態監視部12から、(1)VMに配置されるWeb会議およびVMに配置されると仮定されるWeb会議に係る処理負荷であるWeb会議負荷、(2)Web会議が配置されるVMにおけるリソースの設定状況であるクラウドリソース設定を取得し、この取得結果をWeb会議品質モデルに説明変数として入力する。
上記リソースの設定状況は、例えば、インスタンスであるVMに設けられたCPU数、メモリ量等である。
図2に示された例では、Web会議モデルに入力される情報で示されるWeb会議負荷は、(1)現在の進行中のWeb会議に係るWeb会議負荷、および(2)新規のWeb会議のリクエストによる、現在時刻から10分後からの開始されるWeb会議の予約である将来10分間Web会議予約に係るWeb会議負荷を含む(図2の符号a参照)。この将来10分間Web会議予約に係る現在時刻から開始予定時刻までの時間である10分間は、インスタンスの実際の運用状態に応じてカスタマイズ(customization)され得る。
上記の、Web会議モデルに入力されるクラウドリソース設定は、インスタンスである1台のVMに搭載されるCPUの数を含み得る。上記の現在の進行中のWeb会議は、上記1台のVMに配置されている。
また、図2に示された例では、上記1台のVMに対して上記識別情報が「a」である「Web会議a」が新たに配置されたと仮定したときの当該VMのCPUの使用率の予測値は10%である。
図3に示された例では、Web会議スケジューラによる垂直スケールを行なうときの各処理の流れが示される。
図4に示された例では、Web会議スケジューラによる水平スケールを行なうときの各処理の流れが示される。
この指示に従い、クラウドリソースコントローラ200は上記Scale-outを実施に必要な制御を実行する。このScale-upにより、VMのリソースの追加、例えば既存のVMに対する新たなVMの追加が図られる。
まず、図5に示された例では、既存のインスタンスである「インスタンスA」はCPUのコア数が2であるVMであり、このVMに8時55分から配置されている既存のWeb会議である「会議X」による現在のCPU使用率の予測値が75%であり、このVMにおけるCPU使用率の上限が80%である例が示される。この上限はユーザ体感品質を満足させるためのCPU使用率である。
この構成では、「インスタンスA」に対応するVMに現在配置されているWeb会議による現在のCPU使用率の予測値が上記の75%から40%に減少し、「会議A」が「インスタンスA」に新たに配置されたと仮定したときに増加するCPU使用率の予測値が上記の35%から18%に減少したとする。
まず、図8に示された例では、既存のインスタンスである「インスタンスA」であるVMに8時55分から配置されている既存のWeb会議「会議X」による現在のCPU使用率の予測値が75%であり、このVMにおけるCPU使用率の上限が80%である例が示される。
この構成では、上記「会議A」が既存の「インスタンスA」でなく新たな「インスタンスB」に対応するVMに新たに配置され、この「会議A」が「インスタンスB」に新たに配置されたと仮定したときのCPU使用率の予測値が上記の35%であるとする。
図13に示された例では、上記の実施形態に係るWeb会議スケジューリング装置100は、例えばサーバコンピュータ(server computer)またはパーソナルコンピュータ(personal computer)により構成され、CPU等のハードウエアプロセッサ(hardware processor)111Aを有する。そして、このハードウエアプロセッサ111Aに対し、プログラムメモリ(program memory)111B、データメモリ(data memory)112、入出力インタフェース113及び通信インタフェース114が、バス(bus)115を介して接続される。クラウドリソースコントローラ200についても同様である。
入出力インタフェース113は、キーボード(keyboard)、タッチパネル(touch panel)、タッチパッド(touchpad)、マウス(mouse)等の入力デバイス500を通じて利用者などにより入力された操作データを取り込むとともに、出力データを液晶または有機EL(Electro Luminescence)等が用いられた表示デバイスを含む出力デバイス600へ出力して表示させる処理を行なう。なお、入力デバイス500および出力デバイス600には、Web会議スケジューリング装置100に内蔵されたデバイスが使用されてもよく、また、ネットワークNWを介してWeb会議スケジューリング装置100と通信可能である他の情報端末の入力デバイスおよび出力デバイスが使用されてもよい。
200…クラウドリソースコントローラ
10…Web会議スケジューラ
11…コントローラ
12…インスタンス状態監視部
13…Web会議品質モデルDB
20…Web会議予約保存部
30…Web会議配置部
Claims (8)
- 仮想マシンに配置される処理負荷、前記仮想マシンのリソース配置、および前記処理負荷が前記仮想マシンに配置されたときの品質の予測値の関係が示されるモデルが格納されるモデル格納装置と、
前記モデルにおける前記仮想マシンに新たな処理負荷が配置されたと仮定したときの前記品質の予測値が適切な品質の要件を満たすか否かを判定する判定部と、
前記予測値が前記適切な品質の要件を満たさないと前記判定部により判定されたときに、前記予測値が前記適切な品質の要件を満たすように前記仮想マシンのリソース配置の変更を制御する制御部と、
を備えるリソース決定装置。 - 前記モデルは、前記仮想マシンに配置される処理負荷、および前記仮想マシンのリソース配置を示す情報を説明変数として入力し、前記処理負荷が前記仮想マシンに配置されたときの品質の予測値が目的変数として出力されるモデルであって、
前記品質の予測値が正解情報に近づくように前記モデルのパラメータが更新される、
請求項1に記載のリソース決定装置。 - 前記制御部は、
前記予測値が前記適切な品質の要件を満たさないと前記判定部により判定されたときに、前記予測値が前記適切な品質の要件を満たすように、前記仮想マシンの台数を変更せずに性能を拡充するように前記リソース配置の変更を制御する、
請求項1に記載のリソース決定装置。 - 前記制御部は、
前記予測値が前記適切な品質の要件を満たさないと前記判定部により判定されたときに、前記予測値が前記適切な品質の要件を満たすように、前記処理負荷が配置される仮想マシンの台数が追加されるように前記リソース配置の変更を制御する、
請求項1に記載のリソース決定装置。 - 前記仮想マシンへの配置がリクエストされた新たな処理負荷の予約情報が格納される処理負荷情報格納装置をさらに備え、
前記判定部は、
前記処理負荷情報格納装置に格納される予約情報で示される処理負荷が前記仮想マシンに配置されたと仮定したときの前記品質の予測値が適切な品質の要件を満たすか否かを判定する、
請求項1に記載のリソース決定装置。 - 仮想マシンに配置される処理負荷、前記仮想マシンのリソース配置、および前記処理負荷が前記仮想マシンに配置されたときの品質の予測値の関係が示されるモデルが記憶される記憶装置を備えるリソース決定装置により行なわれる方法であって、
前記リソース決定装置の判定部により、前記モデルにおける前記仮想マシンに新たな処理負荷が配置されたと仮定したときの前記品質の予測値が適切な品質の要件を満たすか否かを判定することと、
前記リソース決定装置の制御部により、前記予測値が前記適切な品質の要件を満たさないと前記判定部により判定されたときに、前記予測値が前記適切な品質の要件を満たすように前記仮想マシンのリソース配置の変更を制御することと、
を備えるリソース決定方法。 - 前記モデルは、前記仮想マシンに配置される処理負荷、および前記仮想マシンのリソース配置を示す情報を説明変数として入力し、前記処理負荷が前記仮想マシンに配置されたときの品質の予測値が目的変数として出力されるモデルであって、
前記品質の予測値が正解情報に近づくように前記モデルのパラメータが更新される、
請求項6に記載のリソース決定方法。 - 請求項1乃至5のいずれか1項に記載のリソース決定装置の前記各部としてプロセッサを機能させるリソース決定処理プログラム。
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| JP2008003736A (ja) * | 2006-06-21 | 2008-01-10 | Hitachi Ltd | 計算機資源不足を警告する方法 |
| JP2020123003A (ja) * | 2019-01-29 | 2020-08-13 | 日本電信電話株式会社 | 仮想化基盤および仮想化基盤のスケーリング管理方法 |
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| JP2008003736A (ja) * | 2006-06-21 | 2008-01-10 | Hitachi Ltd | 計算機資源不足を警告する方法 |
| JP2020123003A (ja) * | 2019-01-29 | 2020-08-13 | 日本電信電話株式会社 | 仮想化基盤および仮想化基盤のスケーリング管理方法 |
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| WU CHAO, HORIUCHI SHINGO, TAYAMA KENICHI: "Intent-based Service Management to Improve Resource Design Efficiency for Cloud Services", NTT TECHNICAL REVIEW, vol. 17, no. 3, 1 March 2019 (2019-03-01), pages 42 - 47, XP093088020, DOI: 10.53829/ntr201903ra1 * |
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