CN103414712B - A kind of distributed virtual desktop management system and method - Google Patents
A kind of distributed virtual desktop management system and method Download PDFInfo
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Abstract
The invention discloses a kind of distributed virtual desktop management system and method, this system comprises: multiple server node by network interconnection, each server node comprises virtual desktop management node and multiple desktop virtual machine, each desktop virtual machine comprises a desktop agents module, the virtual desktop management node of each server node passes through network interconnection, form distributed desktop management cluster, each described virtual desktop management node comprises virtual desktop administration module, network topology management module and shared data bank module.Within the system, virtual desktop management system adopts distributed deployment, each virtualized server deploy has virtual desktop management node, form distributed virtual desktop management cluster, this system-based adopts corresponding virtual desktop dispatching method, this system deployment way and dispatching method effectively can improve system reliability, realize the level and smooth expansion of managerial ability simultaneously.
Description
Technical field
The present invention relates to distributed technical field, particularly relate to a kind of distributed virtual desktop management system and method.
Background technology
Along with the development of virtual computing technique, the deployment way of conventional desktop operating system also enters the virtual epoch.Desktop operating system, the operating system as WindowsXP, Windows7, Windows8, Unbuntu etc. with graphical human-computer interaction interface also can be deployed to virtual platform, by remote desktop display protocol for user provides desktop to show and interactive interface.The basic framework of conventional desktop virtualization system as shown in Figure 2: the hardware of virtualized server runs virtual management software, as Xenserver, ESXi, Hyper-V, KVM or VirtualBox etc.; Desktop virtual machine (DesktopVM) operates on virtual management software, is provided with desktop operating system; Virtual desktop management system is responsible for administering and maintaining of desktop virtual environment, supports the centralized management of multiple stage virtualized server; Desktop agents is the software module operated in desktop virtual machine, for acting on behalf of the instruction performing virtual desktop management system; User is connected to virtualized server by thin terminal (or being called thin-client), obtains user's desktop.Thin terminal can be the software module operating in desktop operating system, also can be embedded type terminal equipment.The mode that traditional desktop virtual system adopts virtual desktop management system independently to dispose usually, carries out centralized management to virtualized server cluster; But this framework, managerial ability is too concentrated, and cost is high and reliability is lower.
Summary of the invention
The present invention proposes a kind of distributed virtual desktop management system and method, this system and method effectively improves reliability and the autgmentability of distributed virtual desktop management.
For realizing above-mentioned distributed virtual desktop management system and method, the present invention by the following technical solutions:
A kind of distributed virtual desktop management system, comprise: multiple server node by network interconnection, each server node comprises virtual desktop management node and multiple desktop virtual machine, each desktop virtual machine comprises a desktop agents module, the virtual desktop management node of each server node passes through network interconnection, form distributed desktop management cluster, each described virtual desktop management node comprises virtual desktop administration module, network topology management module and shared data bank module.
Wherein, described virtual desktop administration module is for providing the subscriber administration interface of desktop virtual, by calling the interface that virtual management software provides, perform the virtual desktop management role in book server, comprise desktop Template Manager, the calculating of desktop virtual machine management and server system, storage and network resource management; Virtual desktop administration module, by the desktop agents module in desktop virtual machine, is monitored desktop virtual machine internal state and performs supervisory instruction.
Wherein, described network topology management module is used for the adding and exiting event of Maintenance Point, shared data bank module be used for stored configuration and status data and between all virtual desktop management nodes synchrodata.
Wherein, in the multiple virtual desktop management nodes in described distributed desktop management cluster, be provided with a host virtual desktop management node, described host virtual desktop management node is also for performing the overall scheduling task of distributed desktop management cluster.
Wherein, described virtual desktop management node receives and performs the dispatch command that host virtual desktop management node sends, and described dispatch command comprises operation and the appointment of the synchronous and virtual desktop of template file; Described virtual desktop management node also for collecting the local state change information of server node, sends to host virtual desktop management node.
A kind of distributed virtual desktop management method, comprising:
In the initialization of virtual desktop management node or when running, notify the host virtual desktop management node location information in described virtual desktop management node virtual desktop management cluster, described virtual desktop management node is joined virtual desktop management cluster;
Data are saved in shared data bank module by virtual desktop management node, shared data bank module by data syn-chronization to other virtual desktop management node in cluster;
Host virtual desktop management node, according to the configuration data of virtual desktop management cluster and state information, performs the distribution of desktop template file and the establishment of idle desktop virtual machine and the task of deletion;
Host virtual desktop management node receives the desktop request of terminal use, dispatches the desktop request of corresponding desktop virtual machine response user in virtual desktop management cluster.
Wherein, described in the initialization of virtual desktop management node or when running, notify the host virtual desktop management node location information in described virtual desktop management node virtual desktop management cluster, described virtual desktop management node joined virtual desktop management cluster, comprises further:
After virtual desktop management node joins virtual desktop management cluster, new node is joined clustered node list by network topology management module, and give new node right to be elected parameter, right to be elected parameter represents the priority that this node is elected as main controlled node;
When network topology management module detects that main controlled node exits cluster, trigger virtual desktop management cluster according to the right to be elected parameter of each node, elect the main controlled node made new advances;
When network topology management module detects in cluster and there is multiple main controlled node, trigger virtual desktop management cluster according to the right to be elected parameter of each node, elect unique main controlled node.
Wherein, data are saved in shared data bank module by described virtual desktop management node, shared data bank module by data syn-chronization in other virtual desktop management node in cluster, when there being new virtual desktop management node to add virtual desktop management cluster, shared data bank module completes the data syn-chronization between new virtual desktop management node and the original virtual desktop management node of virtual desktop management cluster.
Wherein, described host virtual desktop management node, according to the configuration data of virtual desktop management cluster and state information, performs the distribution of desktop template file and the establishment of idle desktop virtual machine and deletion task and comprises the steps: further
When host virtual desktop management node receive new virtual desktop management node add virtual desktop management cluster event time, host virtual desktop management node analysis virtual desktop management cluster state, start GSLB scheduler task, readjust template file and the distribution of desktop virtual machine in cluster;
When host virtual desktop management node receive virtual desktop management node exit virtual desktop management cluster event time, host virtual desktop management node analysis virtual desktop management cluster state, start GSLB scheduler task, readjust template file and the distribution of desktop virtual machine in virtual desktop management cluster;
When host virtual desktop management node receives new template file distribution event, according to the publishing policy of new template file, start template file synchronous task;
When host virtual desktop management node receives idle desktop quota parameter modification event, host virtual desktop management node, according to the distribution of the load Distribution in cluster and template file, creates or deletes the desktop virtual machine of respective numbers;
Scheduler task and executing state are saved in shared data bank module by host virtual desktop management node, and after host virtual desktop management node exits cluster, new host virtual desktop management node continues to safeguard scheduler task that is pending or that performing.
Wherein, described host virtual desktop management node receives the desktop request of terminal use, dispatch in the request of desktop agents module responds in virtual desktop management cluster, when the desktop virtual machine that end-user request is new, host virtual desktop management node checks whether available free desktop, just select an idle desktop according to load Distribution strategy be assigned to terminal use if had, if there is no idle desktop, virtual desktop quantity does not arrive maximum quota simultaneously, host virtual desktop management node is according to load Distribution policy selection server node, create a new desktop virtual machine and be assigned to terminal use.
Beneficial effect of the present invention is: in distributed desktop virtual management system, virtual desktop management system adopts distributed deployment, each virtualized server deploy has virtual desktop management node, form distributed virtual desktop management cluster, this system-based adopts corresponding virtual desktop dispatching method, this system deployment way and dispatching method effectively can improve system reliability, realize the level and smooth expansion of managerial ability simultaneously.
Accompanying drawing explanation
Fig. 1 is the first example structure schematic diagram of a kind of distributed virtual desktop management system of the present invention;
Fig. 2 is the structural representation of conventional desktop virtualization system;
Fig. 3 is the change schematic diagram of the server node list of a kind of distributed virtual desktop management system of the present invention;
Fig. 4 is the event handling flow chart that in a kind of distributed virtual desktop of the present invention dispatching method, virtual desktop management node lost efficacy;
Fig. 5 is the event handling flow chart that in a kind of distributed virtual of the present invention desktop dispatching method, new virtual desktop management node adds cluster;
Fig. 6 is the process chart of management node when host virtual desktop management node clashes in a kind of distributed virtual desktop of the present invention dispatching method;
Fig. 7 is the process chart arranging host virtual desktop management node in a kind of distributed virtual desktop of the present invention dispatching method;
Fig. 8 is a kind of desktop template file distribution schematic diagram in a kind of distributed virtual desktop of the present invention dispatching method;
Fig. 9 is the process chart of host virtual desktop management node control desktop template file distribution in a kind of distributed virtual desktop of the present invention dispatching method;
Figure 10 is the process chart safeguarding the idle desktop quantity in desktop pond in a kind of distributed virtual desktop of the present invention dispatching method;
Figure 11 is the process chart of assigning desktop virtual machine in a kind of distributed virtual desktop of the present invention dispatching method.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the first embodiment of a kind of distributed virtual desktop management system of the present invention, as shown in the figure, this system comprises multiple server node 100 by network interconnection, each server node comprises virtual desktop management node 140 and multiple desktop virtual machine 110, each desktop virtual machine 110 comprises a desktop agents module 111, the virtual desktop management node 140 of each server node 100 is interconnected by network 150, form distributed desktop management cluster, each described virtual desktop management node 140 comprises virtual desktop administration module 141, network topology management module 143 and shared data bank module 142.
Described virtual management software 120, as Xenserver, ESXi, Hyper-v and KVM, being virtual Hypervisor software, is be deployed in the operating system software on server hardware 130.The interface that virtual desktop management node 140 externally provides by calling local virtual management software 120, realize calculating server, store, the management of Internet resources and virtual machine and control, virtual desktop management node 140 provides the user management of virtual desktop and the access control ability of terminal client 160 simultaneously.
In contrast to the basic framework of existing desktop virtual system as shown in Figure 2, in distributed desktop virtual management system, virtual desktop management system adopts distributed deployment, the virtual desktop management node of each virtualized server deploy, form distributed virtual desktop management cluster, this system deployment way effectively can improve system reliability, realizes the level and smooth expansion of managerial ability simultaneously.
Particularly, described virtual desktop administration module 141 is for providing subscriber administration interface, by calling the interface that virtual management software 120 provides, perform the virtual desktop management role in book server, comprise desktop Template Manager, the calculating of desktop virtual machine management and server system, storage and network resource management; Virtual desktop administration module 141, by the desktop agents module in desktop virtual machine 110, is monitored desktop virtual machine 110 internal state and performs supervisory instruction.
Particularly, shared data bank module 142, for the management data of storage system, comprises configuration, event, task and status data.Shared data bank module 142 in cluster forms distributed shared data storehouse cluster, and data are real-time synchronization between shared data bank module, when there being new server node 100 to add cluster, automatically completes data syn-chronization.Arbitrary node in cluster writes data to shared data bank module 142, and in cluster, other node also can read this data at once, and shared data bank module 142 provides reliably for virtual desktop management system, conforming structural data storage capacity.
In distributed virtual desktop management system of the present invention, due to reasons such as system maintenance, network failure, server hardware fault or software faults, server node 100 can be caused to exit cluster thus cause node failure, when fault recovery, server node 100 rejoins cluster, causes the dynamic change of cluster internal server node list.In order to ensure the serviceability of system, network topology management module 143 adapts to this dynamic change automatically.As shown in (a) in Fig. 3, virtual desktop management node 140 can form a network topology structure entirely connected, there is a host virtual desktop management node, each virtual desktop management node 140 is with main franchise configuration parameter, this parameter can be that system generates automatically, such as according to the numerical values recited sequence of the time sequencing or IP address that add cluster, also can by Administrator.The inefficacy of virtual desktop management node 140 can be divided into non-master control virtual desktop management node to lose efficacy and host virtual desktop management node failure two kinds of situations, respectively as shown in (c) in (b) in Fig. 3 and Fig. 3.Non-master control virtual desktop management node lost efficacy, and can not trigger the change of host virtual desktop management node; Host virtual desktop management node failure, system can regenerate new host virtual desktop management node.As shown in (d) in Fig. 3, after new virtual desktop management node 5 joins cluster, virtual desktop management node 5 is set up network with other all virtual desktop desktop management node and is connected, and network topology management module upgrades clustered node list.
Particularly, described virtual desktop management node 140 receives and performs the dispatch command that host virtual desktop management node sends, and described dispatch command comprises operation and the appointment of the synchronous and virtual desktop of template file; Described virtual desktop management node also for collecting the local state change information of server node 100, sends to host virtual desktop management node.
A kind of distributed virtual desktop of the present invention dispatching method comprises:
In virtual desktop management node 140 initialization or when running, notify the host virtual desktop management node location in described virtual desktop management node virtual desktop management cluster, described virtual desktop management node 140 is joined virtual desktop management cluster; Network topology management module 143 processes the event that virtual desktop management node adds and exits virtual desktop management cluster;
Data are saved in shared data bank module 142 by virtual desktop management node 140, shared data bank module 142 by data syn-chronization to other virtual desktop management node 140 in virtual desktop management cluster;
Host virtual desktop management node, according to the configuration data of virtual desktop management cluster and state information, performs the distribution of desktop template file and the establishment of idle desktop virtual machine and the task of deletion;
Host virtual desktop management node receives the desktop request of terminal client 160, dispatches desktop agents module 111 response request in virtual desktop management cluster.
The method, on the basis of distributed desktop virtual management system, by management role virtual for desktop being transferred, effectively improves reliability and the autgmentability of distributed virtual desktop management.
Particularly, Fig. 4 describes network topology management module 143 and the event handling flow process that other virtual desktop management node 140 lost efficacy detected.After the event that other virtual desktop management node 140 lost efficacy being detected, first judge whether the virtual desktop management node 140 lost efficacy is main controlled node, if the virtual desktop management node 140 lost efficacy is not host virtual desktop management node, terminate after renewal node listing and state information, if host virtual desktop management node, start to elect host virtual desktop management node, the main separation of first more each virtual desktop management node 140 lifts weight parameter, the virtual desktop management node 140 with the highest franchise becomes candidate's host virtual desktop management node, candidate virtual desktop management main controlled node, virtual desktop management node 140 transmissions all in virtual desktop management cluster is needed to consult to become the message of host virtual desktop management node, after the confirmation obtaining all virtual desktop management nodes 140 is replied, become host virtual desktop management node, if consult unsuccessfully, candidate's host virtual desktop management node delay retransmits negotiation message, unless event interrupt negotiations process, the event can interrupting consulting comprises new virtual desktop management node 140 and adds and exit the event that cluster event and keeper 170 specify host virtual desktop management node.
Particularly, Fig. 5 describes network topology management module 143 and detects that new virtual desktop management node adds the event handling flow process of cluster.The event that new virtual desktop management node adds virtual desktop management cluster generally occurs in and to add after existing virtual desktop management cluster or old virtual desktop management node leave virtual desktop management cluster after new virtual desktop management node has created, and comes back to virtual desktop management cluster.After receiving virtual desktop management node 140 and adding the event of virtual desktop management cluster, first judge whether the node newly added is host virtual desktop management node, if not host virtual desktop management node, terminate after upgrading node listing and state information; If new virtual desktop management node is main controlled node, will judge in virtual desktop management cluster, whether there is other host virtual desktop management node further, if enter host virtual desktop management node clash handle flow process, otherwise terminate after upgrading node listing and state information.
Particularly, Fig. 6 describes the handling process of management node when host virtual desktop management node collision event being detected.Virtual desktop management cluster under various fault ' conditions, be difficult to ensure fully-connected network topology, also network division may be produced, form multiple network subset group, the sub-cluster having most virtual desktop management node 1410 member generally can be allowed can to elect host virtual desktop management node, but due to time delay and the factor such as network disaster recovery time delay of process, the existence that some virtual desktop management node detects multiple host virtual desktop management node may be had in virtual desktop management cluster, trigger host virtual desktop management node collision event handling process.After collision event being detected, first the main separation obtaining each host virtual desktop management node lifts weight parameter, identify and there is the host virtual desktop management node that the highest main separation lifts weight parameter, host virtual desktop management node to other sends the message cancelling master control authority, and records host virtual desktop management node conflict daily record.
Particularly, Fig. 7 describes the handling process that keeper 170 arranges host virtual desktop management node.Keeper can pass through maintenance terminal, specific virtual desktop management node 140 is specified to be host virtual desktop management node, maintenance terminal can be mounted in the application software on maintenance terminal computer, also can the page terminal of sing on web browser, can also be order line character terminal.Maintenance terminal can only specify a virtual desktop management node 140 to be host virtual desktop management node simultaneously.After certain virtual desktop management node 140 receives the order being set to host virtual desktop management node, first inquire about in node listing and whether there is other host virtual desktop management node, if existed, the message cancelling master control authority is sent to other host virtual desktop management node, then this virtual desktop management node 140 is set for host virtual desktop management node and at virtual desktop management cluster broadcast announcement, process ends after renewal node listing state information.
Particularly, Fig. 8 describes the task scene of a kind of desktop template file distribution.Desktop template file distributed tasks is that host virtual desktop management node is initiated, a kind of overall scheduling task jointly performed by source virtual desktop management node and object virtual desktop management node, can be triggered by multiple event, comprise virtual desktop management node and add and leave virtual desktop management cluster event, new host virtual desktop management node generates events, newly-built desktop template file generation event etc.Desktop template file is the stamper image file creating desktop virtual machine 110, in distributed type assemblies environment, if do not configure shared memory systems, this locality desktop template file being copied to multiple server node 100 is then needed to store, only have when there is the copy of desktop template file server node 100 this locality, just can create desktop virtual machine 110 based on this desktop template file at book server node 100.The distributed tasks of desktop template file, can carry out according to user configured rule, also can by the load condition Real-Time Scheduling of host virtual desktop management node according to system.In the task scene that Fig. 8 describes, by the distribution of all desktop template files of host virtual desktop management node control, distribution procedure guarantees that each desktop template file has two parts of copies in virtual desktop management cluster, and distribution of keeping in balance as much as possible.As shown in Figure 8, desktop template file T1, T2, T3 is had in server node a, desktop template file T4 is had in server node c, wherein T1, T2 are synchronized to server node b, T3 is synchronized to server node c, and T4 is synchronized to server node b, and last server node a and server node b preserves 3 desktop template files, server c preserves 2 desktop template files, and desktop template file T1, T2, T3, T4 have two copies.Host virtual desktop management node, when creating desktop template file distributed tasks, with reference to more virtual desktop management cluster environmental parameter, can comprise the utilization ratio of storage resources of server node 100, the load of server computational resource, network state etc.Usual host virtual desktop management node can safeguard a task list, dispatches successively in order.The list of desktop template file distributed tasks, shared data bank module 142 can be persisted to, the progress of tasks carrying can be updated and notify host virtual desktop management node, and host virtual desktop management node also can timing query task executing state, the boot sequence of control task.When host virtual desktop management node switches, new host virtual desktop management node can obtain task list information from shared data bank module 142, continues to safeguard this task list until all tasks terminate.
Particularly, Fig. 9 describes the handling process of host virtual desktop management node control desktop template file distribution.Host virtual desktop management node is after receiving the event triggering the distribution of desktop template file, first current template file distributing task list is read from shared data bank module 142, according to the Distribution Strategy of the desktop template file distribution in virtual desktop management cluster and desktop template file, analyze the need of creating new desktop template file distributed tasks.If do not have new task to create, this handling process terminates; If there is new task to create, host virtual desktop management node adds newly creating of task to task list, and is saved in shared data bank module 142; Then checked whether that task will start, if had, started corresponding task, upgrade process ends after task status.
Particularly, Figure 10 describes the handling process safeguarding the idle desktop quantity in desktop pond.Generally, desktop pond is based on same desktop template file, the set with the desktop virtual machine 110 of same size, the idle desktop quantity that desktop pond is configured with maximum desktop quantity and pre-creates, wherein idle desktop refers to and is pre-created but the desktop virtual machine 110 be not assigned, can obtain rapidly desktop virtual machine 110 when user asks.The setting of the idle desktop quantity in desktop pond and change all can trigger the handling process of the idle desktop quantity in host virtual desktop management node maintenance desktop pond, by selecting suitable server node 100 to create or delete idle desktop, the desktop virtual machine 110 in desktop pond is allowed to reach default quantity and load Distribution in the cluster.As shown in Figure 10, host virtual desktop management node is in the beginning of handling process, first according to desktop pond configuration parameter and current state, judge that whether current idle desktop quantity is beyond configuration, if exceeded just calculate needs close idle desktop quantity and pick out respective numbers needs close idle desktop, generate idle desktop close task and be saved in shared data bank module 142, close idle desktop successively; If current idle desktop quantity is less than configuration, host virtual desktop management node calculate goes out to need the idle desktop quantity created, and be idle desktop given server node 100 to be created, generate corresponding idle desktop creation task and be saved in shared data bank module 142, creating idle desktop successively.No matter be the idle desktop of Delete superfluous or create new idle desktop, system, when selecting idle desktop or server node 100, all guarantees the load Distribution reaching expection.
Particularly, Figure 11 describes the handling process of host virtual desktop management node designation desktop virtual machine 110; The appointment of desktop virtual machine 110 is also a kind of overall scheduling task; Host virtual desktop management node receives the desktop request of terminal client 160, if request is old desktop, host virtual desktop management node can inquire about the state information of this desktop virtual machine 110, judge whether to start, if this desktop virtual machine 110 is not activated, host virtual desktop management node can notify that the virtual desktop management node 140 of its place server node 100 starts this desktop virtual machine 110, is then assigned to this terminal client 160; If request is new desktop, host virtual desktop management node can inquire about the whether available free desktop virtual machine 110 in corresponding desktop pond, if had, from idle desktop, just selects one be assigned to this terminal client 160; If request is new desktop, corresponding desktop pond does not have idle desktop virtual machine 110 yet simultaneously, main controlled node judges in desktop pond, whether virtual desktop quantity arrives maximum, if arrived maximum, return terminal client 160 and there is no vacant desktop message, if be also less than maximum, the distribution situation of host virtual desktop management node foundation load Distribution strategy and desktop template file, select a server node 100 at virtual desktop management cluster, and on this server node 100, create corresponding desktop virtual machine 110 and be assigned to this terminal client 160.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, any people being familiar with this technology is in the technical scope disclosed by the present invention; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. a distributed virtual desktop management system, it is characterized in that, comprise: multiple server node by network interconnection, each server node comprises virtual desktop management node and multiple desktop virtual machine, each desktop virtual machine comprises a desktop agents module, the virtual desktop management node of each server node passes through network interconnection, form distributed desktop management cluster, each described virtual desktop management node comprises virtual desktop administration module, network topology management module and shared data bank module.
2. a kind of distributed virtual desktop management system according to claim 1, it is characterized in that, described virtual desktop administration module is for providing the subscriber administration interface of desktop virtual, by calling the interface that virtual management software provides, perform the virtual desktop management role in book server, comprise desktop Template Manager, the calculating of desktop virtual machine management and server system, storage and network resource management; Virtual desktop administration module, by the desktop agents module in desktop virtual machine, is monitored desktop virtual machine internal state and performs supervisory instruction.
3. a kind of distributed virtual desktop management system according to claim 1, it is characterized in that, described network topology management module is used for adding and exiting event of Maintenance Point, shared data bank module be used for stored configuration and status data, and between all virtual desktop management nodes synchrodata.
4. a kind of distributed virtual desktop management system according to claim 1, it is characterized in that, in multiple virtual desktop management nodes in described distributed desktop management cluster, be provided with a host virtual desktop management node, described host virtual desktop management node is also for performing the overall scheduling task of distributed desktop management cluster.
5. a kind of distributed virtual desktop management system according to claim 4, it is characterized in that, described virtual desktop management node receives and performs the dispatch command that host virtual desktop management node sends, and described dispatch command comprises operation and the appointment of the synchronous and virtual desktop of template file; Described virtual desktop management node also for collecting the local state change information of server node, sends to host virtual desktop management node.
6. a distributed virtual desktop management method, is characterized in that, comprising:
In the initialization of virtual desktop management node or when running, notify the host virtual desktop management node location information in described virtual desktop management node virtual desktop management cluster, described virtual desktop management node is joined virtual desktop management cluster;
Data are saved in shared data bank module by virtual desktop management node, shared data bank module by data syn-chronization to other virtual desktop management node in cluster;
Host virtual desktop management node, according to the configuration data of virtual desktop management cluster and state information, performs the distribution of desktop template file and the establishment of idle desktop virtual machine and the task of deletion;
Host virtual desktop management node receives the desktop request of terminal use, dispatches the desktop request of corresponding desktop virtual machine response user in virtual desktop management cluster.
7. a kind of distributed virtual desktop management method according to claim 6, it is characterized in that, described in the initialization of virtual desktop management node or when running, notify the host virtual desktop management node location information in described virtual desktop management node virtual desktop management cluster, described virtual desktop management node is joined virtual desktop management cluster, comprises further:
After virtual desktop management node joins virtual desktop management cluster, new node is joined clustered node list by network topology management module, and give new node right to be elected parameter, right to be elected parameter represents the priority that this node is elected as main controlled node;
When network topology management module detects that main controlled node exits cluster, trigger virtual desktop management cluster according to the right to be elected parameter of each node, elect the main controlled node made new advances;
When network topology management module detects in cluster and there is multiple main controlled node, trigger virtual desktop management cluster according to the right to be elected parameter of each node, elect unique main controlled node.
8. a kind of distributed virtual desktop management method according to claim 6, it is characterized in that, data are saved in shared data bank module by described virtual desktop management node, shared data bank module by data syn-chronization in other virtual desktop management node in cluster, when there being new virtual desktop management node to add virtual desktop management cluster, shared data bank module completes the data syn-chronization between new virtual desktop management node and the original virtual desktop management node of virtual desktop management cluster.
9. a kind of distributed virtual desktop management method according to claim 6, it is characterized in that, described host virtual desktop management node, according to the configuration data of virtual desktop management cluster and state information, performs the distribution of desktop template file and the establishment of idle desktop virtual machine and deletion task and comprises the steps: further
When host virtual desktop management node receive new virtual desktop management node add virtual desktop management cluster event time, host virtual desktop management node analysis virtual desktop management cluster state, start GSLB scheduler task, readjust template file and the distribution of desktop virtual machine in cluster;
When host virtual desktop management node receive virtual desktop management node exit virtual desktop management cluster event time, host virtual desktop management node analysis virtual desktop management cluster state, start GSLB scheduler task, readjust template file and the distribution of desktop virtual machine in cluster;
When host virtual desktop management node receives new template file distribution event, according to the publishing policy of new template file, start template file synchronous task;
When host virtual desktop management node receives idle desktop quota parameter modification event, host virtual desktop management node, according to the distribution of the load Distribution in cluster and template file, creates or deletes the desktop virtual machine of respective numbers;
Scheduler task and executing state are saved in shared data bank module by host virtual desktop management node, and after host virtual desktop management node exits cluster, new host virtual desktop management node such as continues to safeguard at the scheduler task that is pending or that performing.
10. a kind of distributed virtual desktop management method according to claim 6, it is characterized in that, described host virtual desktop management node receives the desktop request of terminal use, dispatch in the request of desktop agents module responds in virtual desktop management cluster, when the desktop virtual machine that end-user request is new, host virtual desktop management node checks whether available free desktop, just select an idle desktop according to load Distribution strategy be assigned to terminal use if had, if there is no idle desktop, virtual desktop quantity does not arrive maximum quota simultaneously, host virtual desktop management node is according to load Distribution policy selection server node, create a new desktop virtual machine and be assigned to terminal use.
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