JP2017072876A - Virtual machine management system, management server, and virtual machine management method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure continuing operation of an important application when a power failure occurs.SOLUTION: A virtual machine management system 1 includes: a plurality of uninterruptible power supplies 30; a plurality of virtual servers 20 connected to each of the plurality of uninterruptible power supplies and including one or more virtual machines 21 each actuating one or more applications; and a management server 10 for managing the order of stopping the virtual servers and information on stop processing of the virtual machines and the applications. When a power failure occurs, the management server executes live migration processing of migrating a virtual machine running on a predetermined virtual server to another virtual server, on the basis of preset importance of applications executed by virtual machines, and remaining battery charge of the uninterruptible power supplies, and sequentially stops virtual machines from a virtual machine in which an application has been stopped.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a virtual machine management system, a management server, and a virtual machine management method, and in particular, management capable of automatically controlling the stop order of virtual machines operating on a virtual server when a power failure occurs. The present invention relates to a system, a management server, and a management method.

  In a virtual machine computer system that operates multiple virtual machines simultaneously on a virtual server, various methods are used to continue the operation of the virtual machine even if power supply to the virtual server is interrupted due to a power failure or the like. It has been.

  For example, in Patent Document 1, in a virtual machine computer system, when a power failure occurs due to a power failure or the like for a plurality of virtual machines operating on a virtual server, the virtual machine computer system is operating on a predetermined virtual server. A technique is described in which execution of a virtual machine is continued by failing over the virtual machine to another virtual server.

  Patent Document 2 describes a technique for indicating a stop order when an administrator manually stops a plurality of virtual machines in a virtual machine computer system.

  However, in the system described in Patent Document 1, since the virtual machine stop process is performed without considering the priority order, appropriate stop order control of the virtual machines cannot be performed, and there is room for improvement. Moreover, in patent document 2, it was not able to cope with the absence of an administrator.

  In view of the above points, Patent Document 3 discloses a virtual server in which a stop order of virtual machines is determined in advance and a virtual machine with a high stop order is connected to an uninterruptible power supply with a large remaining battery capacity in the event of a power failure or the like. Discloses a technique for performing live migration processing (inter-virtual server migration processing).

JP 2009-282714 A JP 2009-245316 A JP 2014-052687 A

  However, although the system described in Patent Document 3 can continue the operation of a virtual machine with a high stop order when a power failure occurs, it does not take into account applications that operate on the virtual machine. However, there was room for improvement regarding the continuous operation of important applications.

  Therefore, the present invention has been made in view of the problems in the above-described conventional technology, and provides a virtual machine management system and the like that can ensure continuous operation of an important application when a power failure occurs. For the purpose.

  In order to achieve the above object, the present invention provides a virtual machine management system comprising: a plurality of uninterruptible power supply devices that supply power to a connected device when a power failure occurs; A plurality of virtual servers connected to each of the power failure power supply devices and operating one or more virtual machines, wherein each of the one or more virtual machines operates one or more applications And a management server that manages the stop order of the virtual server and information related to the stop processing of the virtual machine and the application. The management server is set in advance when the power failure occurs. Based on the importance of each application executed by each virtual machine and the remaining battery capacity of each uninterruptible power supply, the virtual machine running on a given virtual server To execute the live migration process to move to the other virtual servers, and performs sequential stop processing from the virtual machine to stop the application.

  The present invention also provides a plurality of virtual machines in which one or a plurality of virtual machines are connected to each of a plurality of uninterruptible power supplies that supply power to the connected apparatuses when a power failure occurs. Management for managing a stop order of a plurality of virtual servers on which each of the one or a plurality of virtual machines operates one or a plurality of applications and information related to the stop processing of the virtual machines and the applications On the predetermined virtual server based on the importance of each application executed by each virtual machine set in advance and the remaining battery capacity of each uninterruptible power supply when the power failure occurs Execute the live migration process to move the virtual machine to another virtual server, and start from the virtual machine that stopped the application And performing the stop process.

  Furthermore, the present invention provides a plurality of uninterruptible power supply devices that supply power to a connected device when a power failure occurs, and is connected to each of the plurality of uninterruptible power supply devices. A plurality of virtual servers on which each of the one or more virtual machines operates one or a plurality of applications, the stop order of the virtual servers, and the virtual server A virtual machine management method in a virtual machine management system comprising a management server for managing information relating to machine and application stop processing, each of which is set in advance by the management server when the power failure occurs Based on the importance of each application executed by the virtual machine and the remaining battery capacity of each uninterruptible power supply, it operates on a given virtual server. Run the live migration process to move to other virtual server to the virtual machine, and performs a sequential stop processing from the virtual machine to stop the application.

  According to the present invention, it is possible to ensure continuous operation of an important application when a power failure occurs.

It is a block diagram which shows one Embodiment of the virtual machine management system which concerns on this invention. It is a block diagram which shows an example of a structure of the management server which concerns on this invention. It is the schematic for demonstrating the connection management table which concerns on this invention. It is the schematic for demonstrating the live migration management table which concerns on this invention. It is the schematic for demonstrating the remaining battery capacity management table which concerns on this invention. It is the schematic for demonstrating the importance registration management table concerning this invention. It is a flowchart for demonstrating the flow of the environment setting process in this invention. It is a flowchart for demonstrating the flow of the power failure monitoring process in this invention. It is a flowchart for demonstrating the flow of the stop process in this invention. It is a flowchart for demonstrating the flow of the live migration process in this invention.

 Next, an embodiment for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an embodiment of a virtual machine management system according to the present invention. This virtual machine management system 1 includes a management server 10, a plurality of virtual servers 20, a plurality of uninterruptible power supplies 30, and It is comprised with the uninterruptible power supply 40. In the example illustrated in FIG. 1, a case where three virtual servers 20A, 20B, and 20C and three uninterruptible power supply devices 30A, 30B, and 30C are used is illustrated.

  In the following description, when there is no need to particularly distinguish each of the virtual servers 20A, 20B, and 20C, it is simply referred to as “virtual server 20”, and each of the uninterruptible power supply devices 30A, 30B, and 30C is particularly designated. When it is not necessary to distinguish, it is simply referred to as “uninterruptible power supply 30”.

  When the virtual servers 20A, 20B, and 20C are connected to the uninterruptible power supply devices 30A, 30B, and 30C, and a power failure due to a power failure or the like occurs in a power source to which power is normally supplied, the power supply is cut off In addition, power is supplied from the uninterruptible power supply devices 30A, 30B, and 30C.

  One or a plurality of virtual machines 21A operate on the virtual server 20A. Similarly, one or more virtual machines 21B operate on the virtual server 20B, and one or more virtual machines 21C operate on the virtual server 20C. In this example, two virtual machines 21A1 and 21A2 operate on the virtual server 20A, two virtual machines 21B1 and 21B2 operate on the virtual server 20B, and two virtual machines 21C1 and 21C1 operate on the virtual server 20C. The case where 21C2 operates is shown.

  In the following description, the virtual machines 21A1 and 21A2, the virtual machines 21B1 and 21B2, and the virtual machines 21C1 and 21C2 are simply referred to as “virtual machine 21” when it is not necessary to distinguish them.

  One or more applications operate on the virtual machine 21. In this example, the applications a and b are running on the virtual machine 21A1, the applications c and d are on the virtual machine 21A2, the applications e and f are on the virtual machine 21B1, and the applications g, h, are on the virtual machine 21B2. Applications i and j are running on the virtual machine 21C1, and applications k and l are running on the virtual machine 21C2.

  As shown in FIG. 2, the management server 10 includes an uninterruptible power supply connection management unit 11, a virtual machine management unit 12, a power state management unit 13, a remaining battery capacity measurement unit 14, an application management unit 15, and an application importance management unit. 16, the live migration processing unit 17 and the stop control unit 18 are provided to manage and control the virtual server 20 described above, the virtual machine 21 operating on each virtual server 20, and the uninterruptible power supply 30.

  The uninterruptible power supply connection management unit 11 manages the connection state between each virtual server 20 and the uninterruptible power supply 30 based on a connection management table (see FIG. 3) to be described later, and on each virtual server 20. The virtual machine 21 that operates is managed. The uninterruptible power supply connection management unit 11 periodically accesses each virtual server 20 at a predetermined timing, and acquires information on the virtual machines 21 operating on each virtual server 20.

  The virtual machine management unit 12 manages the virtual machine 21 operating on the virtual server 20 and the importance of the application on which the virtual machine 21 operates in association with each other based on a live migration management table (see FIG. 4) described later. .

  The power supply state management unit 13 periodically accesses the uninterruptible power supply 30 connected to each virtual server 20 at a predetermined timing, monitors the power supply state of each uninterruptible power supply 30, and supplies power such as a power failure Determine whether a failure has occurred.

  The remaining battery capacity measurement unit 14 measures the remaining battery capacity of the uninterruptible power supply 30 connected to each virtual server 20, and uses the remaining battery capacity management table (see FIG. 5) to be described later for the amount of battery obtained by the measurement. Use to manage. When the remaining battery capacity measurement unit 14 determines that the power supply state management unit 13 is in a power failure, the remaining battery capacity measurement unit 14 is based on the power consumption of the virtual server 20 connected to each uninterruptible power supply 30. The battery usable time is calculated.

  The application management unit 15 acquires the operation status of the applications a to l on the virtual machine 21 and extracts applications that can be stopped immediately. Further, the end times of the applications a to l are calculated from the acquired operation status, and the information is transmitted to the live migration processing unit 17 described later.

  The application importance management unit 16 manages the importance of the applications a to l running on the virtual machine 21 based on an importance registration management table (see FIG. 6) described later.

  The live migration processing unit 17 operates a predetermined application based on information regarding the applications a to l running on each virtual machine 21 and the remaining battery capacity of the uninterruptible power supply 30 connected to each virtual server 20. A live migration process for moving the virtual machine 21 to be moved to another virtual server 20 without stopping the operation is performed.

  The stop control unit 18 performs stop processing on the virtual server 20 and the virtual machine 21 running on the virtual server 20 based on information from the application management unit 15.

  Returning to FIG. 1, the management server 10 is connected to the uninterruptible power supply 40, and when power failure due to a power failure or the like occurs and the normal power supply is cut off, the power is supplied from the uninterruptible power supply 40. Supplied.

  Next, various tables used in the management server 10 will be described.

  The connection management table shown in FIG. 3 is a table for managing the connection state of each uninterruptible power supply 30 and the virtual server 20, and the virtual machine 21 operating on each virtual server 20, and the uninterruptible power supply 30 Information relating to the virtual server 20 and the virtual machine 21 operating on the virtual server 20 is recorded in association with each other.

  In the example of FIG. 3, the uninterruptible power supply 30A, the virtual server 20A, and the virtual machines 21A1, 21A2 that operate on the virtual server 20A are associated with each other, and the uninterruptible power supply 30B, the virtual server 20B, and the virtual server 20B Are associated with each other, and the uninterruptible power supply 30C, the virtual server 20C, and the virtual machines 21C1 and 21C2 that operate on the virtual server 20C are associated with each other.

  The information recorded in the connection management table is obtained by the remaining battery capacity measuring unit 14 of the management server 10 periodically accessing each virtual server 20 and the virtual machine 21 operating on each virtual server 20. Updated based on information.

  The live migration management table shown in FIG. 4 is a table for managing the priorities of the virtual machines 21 that perform live migration. The importance of the applications a to l, the corresponding applications a to l, and the corresponding application a Are recorded in association with the virtual machine 21 in which ~ l is operating and the priority of the virtual machine 21 that performs live migration.

  The remaining battery capacity management table shown in FIG. 5 is a table for managing the remaining battery capacity of each uninterruptible power supply 30, and the remaining battery capacity of each uninterruptible power supply 30 is recorded. In the figure, the remaining battery capacity of the uninterruptible power supply 30A is T-1, the remaining battery capacity of the uninterruptible power supply 30B is T-2, and the remaining battery capacity of the uninterruptible power supply 30C is T-3. An example is given.

  The remaining battery capacity of each uninterruptible power supply 30 recorded in the remaining battery capacity management table is updated at the timing when the remaining battery capacity is calculated by the remaining battery capacity measuring unit 14 of the management server 10.

  The importance level registration management table shown in FIG. 6 is a table for managing the importance levels of the applications a to l, and the importance level and the applications a to l corresponding to the importance levels are recorded in association with each other. In the example shown in the figure, applications a and b are associated with “importance 1”, applications c and d are associated with “importance 2”, and applications e and f are associated with “importance 3”. , Applications i and j are associated with “importance 5”, and applications k and l are associated with “importance N (lowest)”. The importance level registration management table is created by being set by the user when each virtual machine 21 is activated.

  Next, the operation of the virtual machine management system 1 having the above configuration will be described with reference to the flowcharts shown in FIGS. In the virtual machine management system 1 according to the present embodiment, the state of each uninterruptible power supply 30 is set after performing the environment setting process for registering the relationship between the uninterruptible power supply 30, the virtual server 20, and the virtual machine 21. Power failure monitoring process based on When a power failure such as a power failure occurs, stop processing for stopping the virtual machine 21 that is operating on each virtual server 20 and live migration for moving the operating virtual machine 21 are performed. Process.

  First, the flow of the environment setting process will be described with reference to FIG. In step S1, the uninterruptible power supply connection management unit 11 of the management server 10 displays connection information between each virtual server 20 preset by the user and the uninterruptible power supply 30 connected to the virtual server 20 in FIG. Register in the connection management table.

  Next, in step S2, when the virtual machine 21 is activated on each virtual server 20, the importance is set by the user for each application that is activated by the activated virtual machine 21, and the virtual machine management unit 12 Based on the information indicating the set importance, the priority order of the virtual machines 21 that perform live migration is registered in the live migration management table of FIG.

  In step S <b> 3, the uninterruptible power supply connection management unit 11 accesses each virtual server 20 and acquires information on the virtual machine 21 that is operating on each virtual server 20. This acquired information is registered in the connection management table of FIG. Thereby, it becomes possible to associate the uninterruptible power supply 30, the virtual server 20 connected to the uninterruptible power supply 30, and the virtual machine 21 operating on the virtual server 20.

  Further, in step 4, information on the applications a to l running on the virtual machine 21 is acquired from the virtual machine 21 by the application management unit 15 of the management server 10. Here, for the applications a to l whose operations have been confirmed, the importance is confirmed from the application importance management table, and the virtual machine 21 and the applications a to l, in descending order of importance of the running applications a to l, Information on the combination of importance levels is registered in the live migration management table of FIG. 4 (step S5).

  Thereafter, the processes shown in steps S3 and S4 are periodically executed at a predetermined timing. As a result, the information of the virtual machine 21 operating on the virtual server 20 and the information of the applications a to l operating on the virtual machine 21 are acquired, and the contents of the connection management table and the live migration management table are the latest. Manage to be in the state.

  Next, the flow of the power failure monitoring process will be described with reference to FIG.

  First, the power supply state management unit 13 of the management server 10 periodically accesses each uninterruptible power supply 30 at a predetermined timing, and determines whether or not a power failure has occurred based on the power supply state of the uninterruptible power supply 30. Judgment is made (step S11). When the power supply state management unit 13 determines that no power failure has occurred (step S11; No), the process returns to step S11.

  On the other hand, when the power supply state management unit 13 confirms the uninterruptible power supply 30 in a power failure state and determines that a power failure has occurred (step S11; Yes), the application and the virtual machine 21 are stopped (step S12).

  This stop process will be described with reference to FIG. First, an application stop process is performed, and then a virtual machine 21 stop process is performed.

  In step S <b> 12-1, the application management unit 15 extracts an application that can be stopped immediately when a power failure occurs from the applications a to l that are operating. For example, when the application k and the application l that can be stopped when a power failure occurs are operating (step S12-1; Yes), stop processing of the application on the virtual machine 21 that is operating is executed by the stop control unit 18. (Step S12-2).

  After the stop processing, the stopped application is deleted from the live migration management table of FIG. 4, and the live migration management table is updated to the latest state showing only the operating application.

  Next, in step S12-3, the virtual machine 21 in which the application is not operating on the virtual machine 21 is extracted from the live migration management table. When the application is not operating on the virtual machine 21, it can be determined that the virtual machine 21 can be stopped (step S <b> 12-3; Yes), so the stop control unit 18 stops the virtual machine on which the application is not operating. Is performed (step S12-4).

  In the present embodiment, since the application k and the application l are stopped, the stop process of the virtual machine 21C2 is performed. After the stop process, the virtual machine 21 that has performed the stop process is deleted from the live migration management table and the connection management table, and the information in both tables is updated.

  Returning to FIG. 8, in step S <b> 13, the uninterruptible power supply connection management unit 11 performs a measurement process of the remaining battery capacity of the uninterruptible power supply 30 that is in a power failure state. In this measurement, the remaining battery capacity measurement unit 14 of the management server 10 measures the remaining battery capacity of the uninterruptible power supply 30 operating in the remaining battery capacity management table of FIG. Update capacity information. Based on the remaining battery capacity of each uninterruptible power supply 30 registered in the remaining battery capacity management table, the information registered in the connection management table of FIG. 3 is rearranged.

  Next, in step S14, the live migration processing unit 17 executes live migration processing for the virtual machine 21 that is operating (step S14). This live migration process will be described with reference to FIG.

  First, the virtual machines 21 arranged in order of importance in the live migration management table of FIG. 4 are confirmed (step S14-1). Then, the uninterruptible power supply 30 having the largest remaining battery capacity is confirmed from the remaining battery capacity management table of FIG. 5, and connected to the uninterruptible power supply 30 having the largest remaining battery capacity from the connection management table of FIG. Confirmed virtual server 20 (step S14-2).

  In the live migration management table of the management server 10, the live migration process is performed so that the virtual machine 21 registered in the upper level moves to the virtual server 20 connected to the uninterruptible power supply 30 with a large battery capacity (step S14-). 3). This process is repeated for all the virtual machines 21 in operation. As a result, the virtual machine 21 is moved by live migration processing in accordance with the order of importance of the application and the remaining battery capacity of the uninterruptible power supply 30.

  After completion of the migration process, the information of the virtual machine 21 that has been migrated is registered in the connection management table, and the table information is brought to the latest state (S14-4).

  Returning to FIG. 8, after the movement of the virtual machine 21 according to the remaining battery capacity by the live migration process, the process returns to step S <b> 11 to check whether the power failure state continues. When the power failure state continues (step S11; Yes), by repeating steps S12 to S14 again, control is performed so that the virtual machine 21 in which a highly important application is operating can operate to the end.

  As described above, according to the present embodiment, by performing live migration processing based on the importance of the application that the virtual machine 21 is operating and the remaining battery capacity of the uninterruptible power supply 30, The virtual machine 21 in which the application with high importance is operating can be controlled to operate to the end.

DESCRIPTION OF SYMBOLS 1 Virtual machine management system 10 Management server 11 Uninterruptible power supply connection management part 12 Virtual machine management part 13 Power supply state management part 14 Remaining battery capacity measurement part 15 Application management part 16 Application importance management part 17 Live migration processing part 18 Stop control Unit 20 (20A, 20B, 20C) Virtual server 21 (21A1, 21A2, 21B1, 21B2, 21C1, 21C2) Virtual machine 30 (30A, 30B, 30C) Uninterruptible power supply 40 Uninterruptible power supply a to l Application

Claims (6)

A plurality of uninterruptible power supplies that supply power to connected devices in the event of a power failure; and
A plurality of virtual servers connected to each of the plurality of uninterruptible power supply units and operating one or more virtual machines, each of the one or more virtual machines operating one or more applications Multiple virtual servers to be
A management server that manages the stop order of the virtual server and information related to the stop process of the virtual machine and the application;
The management server
A virtual machine that operates on a predetermined virtual server based on the importance level of each application executed by each preset virtual machine and the remaining battery capacity of each uninterruptible power supply when the power failure occurs Execute live migration processing to move to another virtual server,
A virtual machine management system that sequentially performs stop processing from a virtual machine that has stopped the application. The management server
An importance level registration management table in which the importance levels of the applications executed by the respective virtual machines, which are set in advance by the user, are registered;
A live migration management table in which an application registered in the importance level registration management table is registered in association with a virtual machine that executes the application;
A remaining battery capacity management table in which the remaining battery capacity of the plurality of uninterruptible power supplies is registered;
The plurality of uninterruptible power supply devices, the plurality of virtual servers connected to each of the plurality of uninterruptible power supply devices, and the one or more virtual machines operating on each of the plurality of virtual servers are mutually connected. The virtual machine management system according to claim 1, further comprising a connection management table registered in association with the virtual machine management system. The management server
Based on the connection management table, the uninterruptible power supply connection management unit for managing the connection state of the uninterruptible power supply and the virtual server;
Based on the live migration management table, a virtual machine management unit that manages the virtual machine that is operating on the virtual server in association with the importance of the application that the virtual machine operates,
A power state management unit that monitors a power state of the plurality of uninterruptible power supply units and determines whether or not the power failure has occurred;
A remaining battery capacity measuring unit for measuring a remaining battery capacity of the plurality of uninterruptible power supply units;
An application management unit for acquiring the operation status of the application;
An application importance management unit that manages the importance of each application operating on each virtual machine based on the importance registration management table;
A live migration processing unit that executes the live migration process on a virtual machine operating on the virtual server;
A stop control unit that executes the stop process for the application and the stop process for the virtual machine,
As a result of the monitoring by the power state management unit, when it is determined that the power failure has occurred,
The remaining battery capacity measurement unit measures the remaining battery capacity of the plurality of uninterruptible power supply devices, and based on the measured remaining battery capacity of the plurality of uninterruptible power supply devices, the remaining battery capacity management table The registered information is updated,
The live migration processing unit executes the live migration process based on the remaining battery capacity management table, the connection management table, and the live migration management table,
The uninterruptible power supply connection management unit updates the information of the virtual machine operating on each virtual server in the connection management table based on the execution result of the live migration process,
Based on information from the application management unit, the stop process is executed for an application that can be stopped by the stop control unit, and the stop process is sequentially executed for a virtual machine in which the application has been stopped. The virtual machine management system according to claim 2.   Based on the remaining battery capacity management table, the connection management table, and the live migration management table, the live migration processing unit determines the importance level of the application in which each virtual machine operates and the remaining battery capacity of each uninterruptible power supply. In comparison, the virtual machine that operates the application with the higher importance is moved to the virtual server connected to the uninterruptible power supply with a large remaining battery capacity, and the virtual machine with the lower importance is The virtual machine management system according to claim 3, wherein the virtual machine management system is moved onto the virtual server connected to the uninterruptible power supply with a small remaining battery capacity. A plurality of virtual servers connected to each of a plurality of uninterruptible power supply units that supply power to a connected apparatus when a power failure occurs, and one or a plurality of virtual machines operate; A management server that manages a stop order of a plurality of virtual servers each of which one or a plurality of virtual machines operate one or a plurality of applications, and information related to the stop processing of the virtual machines and the applications,
A virtual machine that operates on a predetermined virtual server based on the importance level of each application executed by each preset virtual machine and the remaining battery capacity of each uninterruptible power supply when the power failure occurs Execute live migration processing to move to another virtual server,
A management server that sequentially performs stop processing from a virtual machine that has stopped the application. When a power failure occurs, a plurality of uninterruptible power supply devices that supply power to the connected device, and one or a plurality of virtual machines are connected to each of the plurality of uninterruptible power supply devices A plurality of virtual servers, each of the one or more virtual machines operating one or more applications, the stop order of the virtual servers, and the stop of the virtual machines and applications A virtual machine management method in a virtual machine management system comprising a management server for managing information related to processing,
On the predetermined virtual server based on the importance of each application executed by each virtual machine set in advance by the management server and the remaining battery capacity of each uninterruptible power supply when the power failure occurs Execute the live migration process to move the operating virtual machine to another virtual server,
A virtual machine management method comprising sequentially performing stop processing from a virtual machine that has stopped the application.

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