CN102427475A - Load balance scheduling system in cloud computing environment - Google Patents

Load balance scheduling system in cloud computing environment Download PDF

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Publication number
CN102427475A
CN102427475A CN2011104049102A CN201110404910A CN102427475A CN 102427475 A CN102427475 A CN 102427475A CN 2011104049102 A CN2011104049102 A CN 2011104049102A CN 201110404910 A CN201110404910 A CN 201110404910A CN 102427475 A CN102427475 A CN 102427475A
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virtual machine
load
resources
scheduling
control centre
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CN2011104049102A
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CN102427475B (en
Inventor
樊兴军
陈松林
李守超
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Wuxi City Cloud Computer Center Co.,Ltd.
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Dawning Information Industry Beijing Co Ltd
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Abstract

The invention discloses a load balance scheduling system in a cloud computing environment. The system is formed by a load balancer, a virtual machine resource which can be dynamically scheduled and a scheduling center module which are responsible for a system load scheduling function, a user request response function and a virtual machine resource scheduling function respectively. . The scheduling center module, which is based on processing system monitoring information, notifies the load balancer to add/delete a virtual machine scheduling object. Therefore, the system can dynamically adjust a load balance system service capability.

Description

The system of load balance scheduling in a kind of cloud computing environment
Technical field
The present invention relates to the management of information service load balance scheduling, the system of the load balance scheduling in particularly a kind of cloud computing environment.
Background technology
Load balancing is based upon on the existing network infrastructure, and it provides a kind of cheap effective method expansion servers bandwidth and has increased throughput, strengthens the network data-handling capacity, improves network more flexible and availability.It mainly accomplishes following task: solve the network congestion problem, service provides nearby, realizes irrespective of geographical position property; For the user provides better visit quality; Improve speed of response of server; Improve server and other efficiency of resource; Avoided the network key position single point failure to occur.
But traditional SiteServer LBS that constitutes by scheduling node and service node, can have following problem: during SiteServer LBS integrity service scarce capacity, increase service node that can't be real-time is with enhanced system integrity service ability; If system comes the configuration service node with the standard that satisfies the largest request amount, when request more after a little while, system availability is lower, causes the wasting of resources; When system need the machine of delaying safeguards, must break in service.
Summary of the invention
For solving the said system defective, the invention provides the method for load balance scheduling in a kind of cloud computing environment.
But system is made up of resources of virtual machine, control centre's module three parts of load equalizer dynamic dispatching.Load equalizer is responsible for the scheduling to information service request, with the load of each resource in the balance sysmte; But the resources of virtual machine of dynamic dispatching is responsible for the response message services request, and real service is provided, and also is the object of dynamic dispatching in the native system; Control centre's module is responsible for the load of the overall load of system and each resources of virtual machine, physical server resource is monitored in real time; Based on monitor message; Adopt certain scheduling strategy, dynamically add or the deletion resources of virtual machine, to guarantee the system service ability.
Control centre's module real-time monitoring system overall load situation.The service ability that provides when existing virtual machine in the discovery system is not enough to support more user when asking; Control centre's module can be according to the template of current application; Establishment also configures new resources of virtual machine, and the notification payload equalizer joins this resources of virtual machine in the scheduling queue dynamically.Through the more resources of virtual machine of dynamic expansion to satisfy newly-increased services request.
The service ability that virtual machine provides in control centre module discovery system is superfluous; Promptly be in for a long time under the situation of low load through the resources of virtual machine after the load equalizer scheduling allocating task; Control centre's meeting notification payload equalizer during the dispatching algorithm request for allocation, selected the lightest virtual machine of present load; So that this virtual machine is in zero load condition after handling the request that has distributed.At this moment, control centre's module with this resources of virtual machine deletion, is no longer classified the notification payload equalizer as scheduler object.This moment is because the minimizing of virtual machine, also can reduce accordingly the load of physical server.If the physical server load through the management of other scheduling strategies, is concentrated virtual machine, the physical server that then frees out fully can be carried out administration of energy conservation, with the resource waste of avoiding SiteServer LBS to cause.
When physical server for a certain reason need the machine of delaying be safeguarded, control centre's module can be selected the virtual machine on this server is carried out dynamic migration, so that this server does not have actual loading, the machine of can delaying is safeguarded.And the resources of virtual machine of being responsible for response user request can continue normal operation, can not interrupt providing for the user ability of service.
Description of drawings
Fig. 1 is a system schematic;
Embodiment
Below in conjunction with accompanying drawing and embodiment method of the present invention is described.
But system is made up of resources of virtual machine, control centre's module three parts of load equalizer dynamic dispatching
。Load equalizer is responsible for the scheduling to information service request, with the load of each resource in the balance sysmte.Load equalizer can the distributing user request except to the virtual machine that configures, also defined following system interface, supply control centre's module invokes:
Add the virtual machine interface
Private?boolean?addVM();
Control centre's module adds new resources of virtual machine through this interface in load equalizer, to increase the system service ability.
Deletion virtual machine interface
Private?boolean?removeVM();
Control centre's module is through temporary transient unwanted virtual machine in this interface deletion load equalizer.
But the resources of virtual machine of dynamic dispatching is responsible for the response message services request, and real service is provided, and also is the object of dynamic dispatching in the native system.These virtual machines are based on a template generation that configures, so they can provide identical service in SiteServer LBS.When if the resources of virtual machine in the current system is not enough, only need generates new virtual machine and add in the load equalizer and get final product based on template.Control centre's module is responsible for the load of these virtual machines is monitored.
Control centre's module is responsible for the load of the overall load of system and each resources of virtual machine, physical server resource is monitored in real time; Based on monitor message; Adopt certain scheduling strategy, dynamically add or the deletion resources of virtual machine, to guarantee the system service ability.
Control centre's module has defined respectively with lower interface, to realize the function of system resource dynamic management:
Information gathering,
private?Map?collectVMInfo();
Be responsible for each virtual machine is monitored, collect virtual machine real-time status data.
Information processing,
private?Map?dealVMInfo();
The load equalizer notice promptly according to the information processing result, is called addVM or removeVM interface.
Virtual machine (vm) migration,
private?boolean?migrateVM();
When system maintenance, select the dynamic migration virtual machine as required.
Create virtual machine,
private?boolean?createVM();
The virtual machine new according to template establishment.
Control centre's module real-time monitoring system overall load situation.The service ability that provides when existing virtual machine in the discovery system is not enough to support more user when asking; Control centre's module can be according to the template of current application; Call createVM () interface; Establishment also configures new resources of virtual machine, and notification payload equalizer addVM () interface joins this resources of virtual machine in the scheduling queue dynamically.Through the more resources of virtual machine of dynamic expansion to satisfy newly-increased services request.
The service ability that virtual machine provides in control centre module discovery system is superfluous; Promptly be in for a long time under the situation of low load through the resources of virtual machine after the load equalizer scheduling allocating task; Control centre's meeting notification payload equalizer during the dispatching algorithm request for allocation, selected the lightest virtual machine of present load; So that this virtual machine is in zero load condition after handling the request that has distributed.At this moment, control centre's module is called removeVM () interface with this resources of virtual machine deletion with the notification payload equalizer, no longer classifies scheduler object as.This moment is because the minimizing of virtual machine, also can reduce accordingly the load of physical server.If the physical server load through the management of other scheduling strategies, is concentrated virtual machine, the physical server that then frees out fully can be carried out administration of energy conservation, with the resource waste of avoiding SiteServer LBS to cause.Here the migration to virtual machine promptly realizes through interface migrateVM ().
When physical server for a certain reason need the machine of delaying be safeguarded, control centre's module can be selected the virtual machine on this server is carried out dynamic migration, so that this server does not have actual loading, the machine of can delaying is safeguarded.And the resources of virtual machine of being responsible for response user request can continue normal operation, can not interrupt providing for the user ability of service.

Claims (4)

1. the system of load balance scheduling in the cloud computing environment is characterized in that: said system comprises,
Load equalizer is used for the scheduling to information service request, the load of each resource in the balance sysmte;
But the resources of virtual machine of dynamic dispatching is used for the response message services request, offers user's service;
Control centre's module is used for the load of the overall load of system and each resources of virtual machine, physical server resource is monitored in real time, and based on monitor message, adopts scheduling strategy, dynamically adds or the deletion resources of virtual machine.
2. the system of claim 1; It is characterized in that: the service ability that existing virtual machine provides in the said control centre module discovery system is not enough to support more user when asking; Control centre's module can be according to the template of current application; Creates also and configure new resources of virtual machine, and the notification payload equalizer joins this resources of virtual machine in the scheduling queue dynamically, through the more resources of virtual machine of dynamic expansion to satisfy newly-increased services request.
3. the system of claim 1 is characterized in that: when the service ability that virtual machine provides in the said control centre module discovery system is superfluous, understand the notification payload equalizer; During the dispatching algorithm request for allocation; Select the lightest virtual machine of present load, so that this virtual machine is in zero load condition after handling the request that has distributed; And the notification payload equalizer is no longer classified this resources of virtual machine deletion as scheduler object.
4. the system of claim 1; It is characterized in that: when physical server for a certain reason need the machine of delaying be safeguarded; Said control centre module can be selected the virtual machine on this server is carried out dynamic migration, so that this server does not have actual loading, the machine of can delaying is safeguarded.
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