CN102427475B - 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
CN102427475B
CN102427475B CN 201110404910 CN201110404910A CN102427475B CN 102427475 B CN102427475 B CN 102427475B CN 201110404910 CN201110404910 CN 201110404910 CN 201110404910 A CN201110404910 A CN 201110404910A CN 102427475 B CN102427475 B CN 102427475B
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virtual machine
load
scheduling
system
resources
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CN102427475A (en
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樊兴军
陈松林
李守超
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无锡城市云计算中心有限公司
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Abstract

本发明公开了一种用于云计算环境中负载均衡调度的系统,系统由负载均衡器、可动态调度的虚拟机资源、调度中心模块三部分组成,分别负责系统负载调度、用户请求响应、虚拟机资源调度功能。 The present invention discloses a system for load balancing in cloud computing environment for scheduling, load balancing system consists of three parts, a virtual machine can be dynamically scheduled resource control center module, responsible for system load scheduling, in response to a user request, virtual machine resource scheduling functions. 调度中心模块基于对系统监控信息的处理,通知负载均衡器对虚拟机调度对象的增删处理,实现系统动态调整负载均衡系统服务能力的功能。 Dispatch center module based on processing information system monitoring, notification processing load balancer add or delete virtual machine scheduling objects, dynamic adjustment system to achieve load balancing system service capabilities.

Description

一种云计算环境中负载均衡调度的系统 One kind of a cloud computing environment load balancing scheduling system

技术领域 FIELD

[0001] 本发明涉及信息服务负载均衡调度的管理,特别涉及一种云计算环境中的负载均衡调度的系统。 [0001] The present invention relates to an information management service load balancing scheduling, load balancing particularly relates to a scheduling system in a cloud computing environment.

背景技术 Background technique

[0002] 负载均衡建立在现有网络结构之上,它提供了一种廉价有效的方法扩展服务器带宽和增加吞吐量,加强网络数据处理能力,提高网络的灵活性和可用性。 [0002] The load balancing based on the existing network architecture, it provides a cheap and effective way to extend the bandwidth and servers increase throughput, enhance network data processing capability, flexibility, and availability of the network. 它主要完成以下任务:解决网络拥塞问题,服务就近提供,实现地理位置无关性;为用户提供更好的访问质量;提高服务器响应速度;提高服务器及其他资源的利用效率;避免了网络关键部位出现单点失效。 It is mainly the following tasks: to solve network congestion problems, the nearest service provided to achieve location independence; to provide users with better access to quality; improve server responsiveness; increase server and other resource use efficiency; avoid key parts of the network appear single point of failure.

[0003] 但传统的由调度节点与服务节点构成的负载均衡系统,会存在以下问题:负载均衡系统整体服务能力不足时,无法实时的增加服务节点以增强系统整体服务能力;若系统以满足最大请求量的标准来配置服务节点,当请求较少时,系统利用率较低,造成资源浪费;系统需要宕机维护时,必须中断服务。 [0003] However, load-balancing system tradition by scheduling nodes and service nodes constituted, will be the following problems: insufficient load-balancing system overall service capacity, not real-time, increase service node to enhance system overall service capacity; if the system is to meet the maximum the standard amount requested to configure the service node when requesting less, lower system utilization, resulting in waste of resources; when the system is down for maintenance needs, must interrupt service.

发明内容 SUMMARY

[0004] 为解决上述系统缺陷,本发明提供了一种云计算环境中负载均衡调度的方法。 [0004] To solve the above defects in the system, the present invention provides a method of load balancing scheduling environment a cloud.

[0005] 系统由负载均衡器、可动态调度的虚拟机资源、调度中心模块三部分组成。 [0005] system by the load balancer, a virtual machine can be dynamically scheduled resource control center module consists of three parts. 负载均衡器负责对信息服务请求的调度,以平衡系统中各资源的负载;可动态调度的虚拟机资源负责响应信息服务请求,提供真正的服务,也是本系统中动态调度的对象;调度中心模块负责对系统的整体负载及每个虚拟机资源、物理服务器资源的负载进行实时监控,基于监控信息,采用一定的调度策略,动态添加或删除虚拟机资源,以保证系统服务能力。 The load balancer is responsible for scheduling the information service request in order to balance the system load of each resource; dynamically scheduling the virtual machine resource responsible for responding to the information service request, provide real services, is the system dynamic scheduling objects; dispatch center module responsible for the overall load on the system and each virtual machine resources and physical server resources load of real-time monitoring, based on the monitoring information, the use of certain scheduling policy dynamically add or delete virtual machine resources, to ensure system service capabilities.

[0006] 调度中心模块实时监控系统整体负载情况。 [0006] control center module real-time monitoring of the entire system load. 当发现系统中现有虚拟机提供的服务能力不足以支撑更多的用户请求时,调度中心模块会根据当前应用的模板,创建并配置好新的虚拟机资源,并通知负载均衡器将该虚拟机资源动态的加入到调度队列中。 When they find the service capabilities of the system in an existing virtual machine is not sufficient to support more users request, dispatch center module based on the template of the current application, create and configure a new virtual machine resources, and notifies the virtual load balancer It was added to the machine dynamic resource scheduling queues. 通过动态扩展更多的虚拟机资源以满足新增的服务请求。 By dynamically expanding virtual machines more resources to meet new service requests.

[0007] 当调度中心模块发现系统中虚拟机提供的服务能力过剩,即经过负载均衡器调度分配任务后的虚拟机资源长时间处于低负载的情况下,调度中心会通知负载均衡器,调度算法分配请求时,要选择当前负载最轻的虚拟机,以使得该虚拟机在处理完已分配的请求后,处于零负载状态。 [0007] In the case where the control center module found excess service capacity of the system in virtual machines, namely through the virtual machine resource scheduling the load balancer assign tasks for a long time at a low load dispatch center will notify the load balancer, scheduling algorithm when the allocation request, to select the current lightest load of the virtual machine, the virtual machine so that after processing the request has been allocated in the zero load state. 此时,调度中心模块将通知负载均衡器将该虚拟机资源删除,不再列为调度对象。 In this case, the control center module will notify load balancer delete the virtual machine resource, not as a scheduling object. 此时由于虚拟机的减少,对物理服务器的负载也会相应的减少。 At this time, the virtual machine due to the reduced load on the physical server will be a corresponding reduction. 若物理服务器负载通过其他调度策略的管理,将虚拟机集中,则完全空闲出来的物理服务器可执行节能管理,以避免负载均衡系统造成的系统资源的浪费。 If the physical server load by managing other scheduling strategy, will focus on the virtual machine, it is completely free up physical server can perform energy management, to avoid wasting system resources caused by load-balancing system.

[0008] 当物理服务器由于某种原因需要进行宕机维护时,调度中心模块可选择将该服务器上的虚拟机进行动态迁移,以使得该服务器没有实际负载,可以进行宕机维护。 [0008] When for some reason the physical server down for maintenance when required, control center module select the virtual machine on the server dynamically migrate, so that the server does not have actual load, may be down for maintenance. 而负责响应用户请求的虚拟机资源可以继续正常运行,不会中断为用户提供服务的能力。 And responds to user requests virtual machine resources can continue to operate normally without interruption ability to provide users with services. 附图说明 BRIEF DESCRIPTION

[0009] 图1为系统示意图; [0009] FIG. 1 is a schematic diagram of the system;

具体实施方式 Detailed ways

[0010] 下面结合附图和具体实施方式对本发明的方法进行说明。 [0010] Next, the method of the present invention will be described in conjunction with the accompanying drawings and specific embodiments.

[0011] 系统由负载均衡器、可动态调度的虚拟机资源、调度中心模块三部分组成 [0011] from the load balancing system, a virtual machine can be dynamically scheduled resource control center module consists of three parts

[0012] 负载均衡器负责对信息服务请求的调度,以平衡系统中各资源的负载。 [0012] The load balancer is responsible for scheduling information service request to balance the system load of each resource. 负载均衡器除了对配置好的虚拟机可以分配用户请求之外,还定义了以下几个系统接口,供调度中心模块调用: In addition to the load balancer configured virtual machines can be assigned a user request, but also several of the defined system interface for call control center module:

[0013] 添加虚拟机接口 [0013] Add Virtual Machine Interface

[0014] Private boolean addVM(); [0014] Private boolean addVM ();

[0015] 调度中心模块通过该接口向负载均衡器中加入新的虚拟机资源,以增加系统服务能力。 [0015] control center module to add a new virtual machine resources to the load balancer through this interface, the system in order to increase service capacity.

[0016] 删除虚拟机接口 [0016] Delete Virtual Machine Interface

[0017] Private boolean removeVM(); [0017] Private boolean removeVM ();

[0018] 调度中心模块通过该接口删除负载均衡器中暂时不需要的虚拟机。 [0018] The control center via the interface module to delete the load balancer no need virtual machines.

[0019] 可动态调度的虚拟机资源负责响应信息服务请求,提供真正的服务,也是本系统中动态调度的对象。 [0019] dynamically scheduling virtual machine resources services responsible for responding to information requests, to provide real service, is also the dynamic scheduling system objects. 这些虚拟机是基于一个配置好的模板生成的,因此他们可以在负载均衡系统中提供相同的服务。 These virtual machines are configured based on a template generation, so they can provide the same service in the load balancing system. 若当前系统中的虚拟机资源不够用时,只需要基于模板生成新的虚拟机并添加到负载均衡器中即可。 If the current system in a virtual machine resources are not enough, just based on the template to generate a new virtual machine and added to the load balancer can be. 调度中心模块负责对这些虚拟机的负载进行监控。 Module load dispatch center is responsible for these virtual machines to be monitored.

[0020] 调度中心模块负责对系统的整体负载及每个虚拟机资源、物理服务器资源的负载进行实时监控,基于监控信息,采用一定的调度策略,动态添加或删除虚拟机资源,以保证系统服务能力。 [0020] control center module is responsible for the overall load on the system and each virtual machine resources and physical server resources load of real-time monitoring, based on the monitoring information, the use of certain scheduling policy dynamically add or delete virtual machine resources, to ensure system service ability.

[0021] 调度中心模块分别定义了以下接口,以实现系统资源动态管理的功能: [0021] The control center module defines the following interfaces respectively, to enable dynamic resource management system functions:

[0022] 信息采集, [0022] The information collection,

[0023] private Map collectVMInfo (); [0023] private Map collectVMInfo ();

[0024] 负责对各个虚拟机进行监控,采集到虚拟机实时状态数据。 [0024] responsible for monitoring each virtual machine, the virtual machine to collect real-time status data.

[0025] 信息处理, [0025] Information Processing,

[0026] private Map dealVMInfoO ; [0026] private Map dealVMInfoO;

[0027] 负载均衡器通知,即根据信息处理结果,调用addVM或removeVM接口。 [0027] notify load balancer, i.e., the information processing result or removeVM addVM call interfaces.

[0028] 虚拟机迁移, [0028] virtual machine migration,

[0029] private boolean migrateVM(); [0029] private boolean migrateVM ();

[0030] 当系统维护时,根据需要选择动态迁移虚拟机。 [0030] When the system maintenance, dynamic migration of virtual machines need to choose.

[0031] 创建虚拟机, [0031] create a virtual machine,

[0032] private boolean createVM(); [0032] private boolean createVM ();

[0033] 根据模板创建新的虚拟机。 [0033] create a new virtual machine from a template.

[0034] 调度中心模块实时监控系统整体负载情况。 [0034] control center module real-time monitoring of the entire system load. 当发现系统中现有虚拟机提供的服务能力不足以支撑更多的用户请求时,调度中心模块会根据当前应用的模板,调用createVMO接口,创建并配置好新的虚拟机资源,并通知负载均衡器addVM()接口将该虚拟机资源动态的加入到调度队列中。 When they find the service capabilities of the system in an existing virtual machine is not sufficient to support more users request, dispatch center module based on the template of the current application, call createVMO interfaces, create and configure a new virtual machine resources, and load balancing notice dynamic adders addVM () interface to the virtual machine to the resource scheduling queues. 通过动态扩展更多的虚拟机资源以满足新增的服务请求。 By dynamically expanding virtual machines more resources to meet new service requests.

[0035] 当调度中心模块发现系统中虚拟机提供的服务能力过剩,即经过负载均衡器调度分配任务后的虚拟机资源长时间处于低负载的情况下,调度中心会通知负载均衡器,调度算法分配请求时,要选择当前负载最轻的虚拟机,以使得该虚拟机在处理完已分配的请求后,处于零负载状态。 [0035] In the case where the control center module found excess service capacity of the system in virtual machines, namely through the virtual machine resource scheduling the load balancer assign tasks for a long time at a low load dispatch center will notify the load balancer, scheduling algorithm when the allocation request, to select the current lightest load of the virtual machine, the virtual machine so that after processing the request has been allocated in the zero load state. 此时,调度中心模块将通知负载均衡器调用removeVMO接口将该虚拟机资源删除,不再列为调度对象。 In this case, the control center module will notify load balancer call removeVMO interfaces delete the virtual machine resource, not as a scheduling object. 此时由于虚拟机的减少,对物理服务器的负载也会相应的减少。 At this time, the virtual machine due to the reduced load on the physical server will be a corresponding reduction. 若物理服务器负载通过其他调度策略的管理,将虚拟机集中,则完全空闲出来的物理服务器可执行节能管理,以避免负载均衡系统造成的系统资源的浪费。 If the physical server load by managing other scheduling strategy, will focus on the virtual machine, it is completely free up physical server can perform energy management, to avoid wasting system resources caused by load-balancing system. 这里对虚拟机的迁移即是通过接口migrateVMO实现的。 Here migration of a virtual machine that is achieved through the interface migrateVMO.

[0036] 当物理服务器由于某种原因需要进行宕机维护时,调度中心模块可选择将该服务器上的虚拟机进行动态迁移,以使得该服务器没有实际负载,可以进行宕机维护。 [0036] When for some reason the physical server down for maintenance when required, control center module select the virtual machine on the server dynamically migrate, so that the server does not have actual load, may be down for maintenance. 而负责响应用户请求的虚拟机资源可以继续正常运行,不会中断为用户提供服务的能力。 And responds to user requests virtual machine resources can continue to operate normally without interruption ability to provide users with services.

Claims (1)

1.一种云计算环境中负载均衡调度的系统,其特征在于:所述系统包括, 负载均衡器,用于对信息服务请求的调度,平衡系统中各资源的负载; 可动态调度的虚拟机资源,用于响应信息服务请求,提供给用户服务; 调度中心模块,用于对系统的整体负载及每个虚拟机资源、物理服务器资源的负载进行实时监控,并基于监控信息,采用调度策略,动态添加或删除虚拟机资源; 所述调度中心模块发现系统中现有虚拟机提供的服务能力不足以支撑更多的用户请求时,调度中心模块会根据当前应用的模板,创建并配置好新的虚拟机资源,并通知负载均衡器将该虚拟机资源动态的加入到调度队列中,通过动态扩展更多的虚拟机资源以满足新增的服务请求; 所述调度中心模块发现系统中虚拟机提供的服务能力过剩时,会通知负载均衡器,调度算法分配请求时 A cloud computing system environment load balancing scheduling, wherein: said system comprises a load balancer, information for scheduling the service requests, each load balancing system resources; dynamically scheduling the virtual machine resources, in response to the information service request, the service provided to the user; control center module, the overall system load for each virtual machine and the resource, the physical load of real-time monitoring of server resources, and based on the monitoring information, using the scheduling strategy, dynamically add or delete virtual machine resources; the dispatch center module discovery service capabilities of the system in an existing virtual machine is not sufficient to support more users request, dispatch center module based on the template of the current application, create and configure new virtual machine resources and notifies the virtual machine load balancer dynamically added to the resource scheduling queue by dynamically expand more virtual machine resources to meet the new service request; the dispatch center system of the virtual machine module discovery provided when excess service capacity, will notify load balancer, scheduling algorithms allocation requests 选择当前负载最轻的虚拟机,以使得该虚拟机在处理完已分配的请求后,处于零负载状态,并通知负载均衡器将该虚拟机资源删除,不再列为调度对象; 当物理服务器由于某种原因需要进行宕机维护时,所述调度中心模块可选择将该服务器上的虚拟机进行动态迁移,以使得该服务器没有实际负载,可以进行宕机维护。 Select the lightest current load of the virtual machine, the virtual machine so that after processing the request has been assigned, in the zero load state, and to notify load balancer delete the virtual machine resources, as the target of the scheduling longer; when physical servers when for some reason needs to be down for maintenance, the control center module select the virtual machine on the server dynamically migrate, so that the server does not have actual load, may be down for maintenance.
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