WO2007041899A1 - A system and method of managing the dynamic adaptive distributed resource - Google Patents

Abstract

A system and method of managing the dynamic adaptive distributed resource, comprises a plurality of resource management boards having the resource monitor module and the management module and a plurality of resource boards having one or more physical resource example. It configures all the physical resources and the virtual resources needed by every resource management board first and identifies them; after the resource management board is power on, it monitors the state of the physical resources configured for it, identifies the state, and timedly acquires the information of the available physical resources from the other resource management boards; for its virtual resource mapping no physical resource, the resource management board searches the intraclass physical resource which state is available for it in its own and the other resource management boards, records their mapping relation after finding it, and sets the state of the physical resource is mapped and the remainder available physical resources are shared by the whole; when resource is requested, the resource management board distributes the available physical resource and returns the identification of the corresponding physical resource. The process of requesting the resource of the present invention is more reduced and the rate is more improved.

Description

 Dynamically adaptive distributed resource management system and method

Technical field

 The present invention relates to distributed resource management, and more particularly to a system and method for dynamically adaptive distributed resource management.

Background technique

 In a modern distributed computer system, different CPU boards implement different functions, and the division of labor of these boards enables the designer to design the functions of the entire system. For example, a telecommunications system with many users, some boards provide resource processing capabilities. For the convenience of description, this resource processing board with certain functions is called a resource board (RSB), and some boards are used for monitoring, distribution, and The management resource board is called a resource management board (RMB). The RMB includes a resource monitoring module and a resource management module, and may also include a resource usage module. The global sharing of RSB board resources is realized by RMB.

 Figure 1 shows a network structure of a distributed resource, including multiple RMB and RSB. Each RMB is configured with a number of RSB boards. The status of these RSB boards is monitored by the resource monitoring module in RMB. The RMB that monitors RSB is also called the RMB to which the RSB belongs. The solid line is used to describe this correspondence. For example, the status of the resource board RSB11 - RSBlp is monitored by the resource monitoring module in RMB1; the status of RSB21 ~ RSBlk is monitored by the resource monitoring module in RMB2. The resource management module needs to apply to the resource management module when the resource is used. The resource management module can allocate other RSB monitoring RSBs for it. The dotted line is used to describe the resource usage relationship in Figure 1, and the RMB using the RSB resource can be seen. It is not necessarily the RMB that monitors the RSB.

 How to realize the global sharing of these RSB board resources has always been a problem that the industry considers to solve. In the past, the management of resources mainly has the following management methods.

The first way: Each RMB manages only its own resources, that is, monitoring and management. The problem with this approach is that resources cannot be shared. When all the resources of a certain RMB cannot work, although other RMBs have idle resources, RMB cannot satisfy the resources. In In this management mode, in order to ensure reliability, more RSB boards need to be configured for backup. The hardware cost of the deployment is increased, which is not conducive to future maintenance.

 The second method: A centralized resource management method, such as the patent disclosed in Patent Application No. 96117990.2 (publication number CN1156362A), is a representative of centralized resource management. The program puts all resources on one RMB for unified management, and other RMB needs resources must apply to this RMB. The problem with this method is that once the RMB downtime for centralized management of resources is unified, the entire system will be a situation of a bad situation, which is very dangerous. In addition, there are cross-board messages for resource applications between RMB, which will inevitably lead to longer application time and risk of loss of information.

 The third way: Resources are not centrally managed on a RMB, but also distributed management. When an RMB resource is insufficient or resources are in question, the resources are applied to other RMB in turn. The problem with this method is that there is uncertainty, and the software process is complicated and difficult to implement. Moreover, the time for applying for resources is uncertain, and some time is short and short, which is not conducive to the software design of the resource part of the RMB application.

The following describes the third distributed resource management method by taking the DTMF (Dual Tone Multi-Frequency) resource as an example. DTMF resources are a resource that is needed in telecommunications equipment to enable a call between a fixed telephone subscriber and other subscribers.

 The two virtual boxes in FIG. 1 respectively represent two RMBs, and the call processing module (ie, resource usage module) of the left RMB1 sends a request for requesting DTMF resources to the resource management module, and the resource management module first checks whether there is any available on the RMB. DTMF, if it is found to be available, immediately apply for occupancy, and return the occupied DTMF number to the call processing module; when the RMB has no DTMF available, the resource management module will send the inter-board borrowing to other RMBs. Resource request, such as RMB2 on the right. After receiving the request, RMB2 also first searches for the RMB. If no DTMF resources are available, the next RMB is used to request the borrowing of the resource, and so on, until the application of the available DTMF resources and the occupation or the return of all the RMBs. Asked again.

This kind of processing flow is very cumbersome, and it is difficult to determine the timeout protection time because the call processing module (resource usage module) is difficult to determine how many such cross-board calls are needed, and it is difficult to determine the processing. In addition, because there are multiple cross-board calls, the call processing module does not know the message between the boards. Loss or cross-board calls for this normal processing flow delay, considering that each call processing is time-limited, it may occur that although there are resources available, the call fails due to too many cross-board calls. , resulting in call loss. In order to avoid this situation, it is generally adopted to configure a large number of backup resource boards for each RMB to avoid, which leads to an increase in hardware costs.

Summary of the invention

 The technical problem to be solved by the present invention is to provide a dynamically adaptive distributed resource management system and method, which realizes the sharing of global resources, greatly reduces the processing of resource applications, and shortens the time for resource application.

 Through the analysis of known technologies, it can be found that the existing RMB management method for resources is passive, that is, when the actual application of resources is performed. If a method is provided, the status of the resource can be actively monitored. Once the resource is found to be unavailable, the resource can be actively searched for available resources, which will simplify the processing of the resource application and shorten the time for resource application. Based on this idea, the present invention proposes an implementation method of first configuring a virtual resource, utilizing a mapping between a virtual resource and a real resource, and adaptively reaching a global shared resource.

 Some of the nouns used in the present invention are defined as follows:

 Resources: include hardware resources (also called physical resources) and software resources. Hardware resources refer to physical entities that can be allocated and utilized in a distributed system, such as a specific board and a serial port. Software resources refer to resources. Software description and labeling of software code with a certain function. Hardware resources are described in a software program by a software resource.

 Real Resources: Software resources that are directly used to describe a hardware resource, such as software code that implements DTMF functionality. An RSB board can provide one or more real resource instances. The three existing management methods mentioned in the background section can be attributed to the management method of real resources.

 Virtual resources: Refers to the logical resources defined in the program according to the needs, which can be obtained through configuration. There is no fixed correspondence between virtual resources and real resources. It may be related to a certain real resource at a certain moment, and establish contact with another real resource at another time, or establish contact with different real resources.

Mapping: refers to the establishment of the virtual resource and the real resource - the corresponding relationship, once the mapping is established System, then a real resource can be uniquely identified based on the virtual resource number. Mapping relationships include direct mapping relationships and indirect mapping relationships. Direct mapping means that a virtual resource directly corresponds to a real resource, and there is no intermediary. Indirect mapping means that a virtual resource is first mapped to other virtual resources, and then other virtual resources are mapped to a real resource.

Based on the above, the present invention provides a dynamically adaptive distributed resource management system, including multiple resource management boards and multiple resource boards, where the resource management board includes a resource monitoring module and a resource management module, and the resources are The board has an instance of one or more real resources, and the resource monitoring module is configured to monitor the status of the real resources on the resource boards of the resource management board and notify the resource management module of the resource management board;

 The resource management module is configured to record the real resource status and usage of the resource management board, and obtain and record the information of the real resources available on each resource management board, and find available resources for the virtual resources configured on the resource management board. A real-world resource and a mapping relationship between the two are allocated, and when the resource application is received, the available virtual resources are allocated and the information of the real resources mapped thereto is returned.

 Further, the foregoing distributed resource management system may further have the following features: The resource management module further includes the following units:

 a resource information storage unit, configured to record a status of each real resource monitored by the resource management board and information of a resource management board using the real resource, and information about each virtual resource configured by the resource management board and the real resource mapped by the resource management board And the available real resource information monitored by each resource management board in the system; the shared resource information maintenance unit is configured to periodically obtain information about the available real resources from other resource management boards, and implement timing update of the global shared resources, and at the same time After the mapping between the real resource and the virtual resource is completed, the remaining available real resources are advertised or queried as global shared resources. The resource allocation unit is configured to allocate available virtual resources and return the virtual resource when the resource application is received. The real resource identifier corresponding to the virtual resource, if no virtual resource is available, a failure message is returned;

 The mapping establishment processing unit is configured to search for available real resources in the global scope and establish a mapping relationship between the virtual resources configured for the resource management board;

The resource management control unit is configured to coordinate and control each unit of the resource management module, and complete various functions of the resource management module. Further, the foregoing distributed resource management system may further have the following features: The resource information storage unit stores the following list:

 The real resource table records the identity and status flag of each real resource monitored by the resource management board, and the identifiers of other resource management boards that use the real resource;

 The virtual resource table records the identifier, mapping flag, and mapped real resource identifier of each virtual resource configured by the resource management board;

 The global shared resource table records the identifiers of the various resource management boards in the system and the number and types of available real resources monitored.

 Further, the foregoing distributed resource management system may further have the following features: the mapping establishment processing unit further includes:

 An intra-board mapping sub-unit is configured to search for a virtual resource that has not been mapped yet. In the real resource table of the resource management board, find a real resource of the same type, and set the state of the found real resource to be mapped and record the virtual resource. The mapping relationship between the resource and the real resource;

 The inter-board mapping establishment sub-unit is configured to search for the saved global shared resource, find the real resource available on the other resource management board, and then issue a borrowing request to the resource management board, and after the confirmation, record the virtual resource and the real resource. Mapping relationship, when receiving a message rejecting borrowing, deleting the record corresponding to the real resource or invalidating it;

 An inter-board mapping confirmation sub-unit is configured to determine the current state of the real resources when receiving requests for borrowing real resources from other resource management boards, return an acknowledgement message when it is actually available, and set the status of the real resources. Is mapped, otherwise returns a message that refuses to borrow.

Further, the foregoing distributed resource management system may further have the following features: The resource management control unit includes a power-on control sub-unit, configured to: after the system is powered on, set a timer to wait for the resource board of the resource management board to be normal. Run, and start the process of obtaining the global shared resource, and then start the mapping establishment process after the timer expires.

Further, the foregoing distributed resource management system may further have the following features: the resource management control unit includes a real resource change processing sub-unit, configured to not operate or receive the real resource in real resources. When the real resource sent by the resource management board fails to operate normally, the real resource status is set to be unavailable. When the real resource is mapped, the resource management board that uses the real resource is also notified to release the virtual resource and the A mapping of real resources and attempting to establish a new mapping for the virtual resource.

 Further, the foregoing distributed resource management system may further have the following features: The real resource change processing sub-unit is further configured to: when the available real resources increase, set the status of the real resources to be available, and the resource management board is Similar virtual resources that have not been mapped are mapped to these real resources, and redundant available real resources are added to the global shared resource table.

 Further, the foregoing distributed resource management system may further have the following features: The resource management control unit includes a real resource change processing sub-unit, and is configured to try to establish a mapping relationship between the real resource and the real resource when the configured virtual resource increases. When the configured virtual resource is reduced, the existing mapping relationship of the virtual resource is removed and the virtual resource is deleted. When the original mapped real resource is in the resource management board, the state is set to be available and added to the global shared resource table. When the real resource is not in the resource management board, notify its resource management board to make its status available.

 Further, the foregoing distributed resource management system may further have the following features: The resource management module further includes a mapping relationship adjusting unit, configured to periodically check the usage rate of the virtual resource of the resource management board, if a virtual resource is mapped When the usage rate is lower than a certain set value, the mapping relationship between the virtual resource and the real resource is released, and the real resource state is set to be available. If the usage rate of an unmapped virtual resource is greater than a certain set value, Then find a mapping relationship for the real resources that are available for it.

Based on the above ideas, the present invention also provides a dynamically adaptive distributed resource management method, which is applied to a distributed resource management system including multiple resource management boards and multiple resource boards, including the following steps:

 (a) Configure all real resources and virtual resources required by each resource management board in the system, identify these resources and save them in the resource management board;

 (b) After the power management of the resource management is successful, monitor the status of each real resource configured for it and mark the status, and obtain the information of the real resources available from other resource management boards to realize the global shared resources. Timing update

( c ) The resource management board has no virtual resources mapped to the real resource mapping for the board configuration. The board and other resource management boards find the real resources of the same kind as the available status, find the mapping relationship between the two, and set the status of the real resource to mapped. After the processing is completed, the remaining available real resources are taken as the global Share resource;

 (d) When applying for a resource, the resource management board allocates the available virtual resources and returns the real resource identifier corresponding to the virtual resource. If no virtual resources are available, a failure message is returned.

 Further, the foregoing distributed resource management method may further have the following features: The resource management board records the relationship between the information of the real resource, the virtual resource, and the global shared resource and the information by saving the following list: the real resource table, the record The identifier of each real resource monitored by the resource management board, the status flag, and the identifier of other resource management boards using the real resource; the virtual resource table records the identifier and mapping of each virtual resource configured by the resource management board. The flag and the mapped real resource identifier; and the global shared resource table record the identity of each resource management board in the system and the number and type of available real resources monitored.

 Further, the foregoing distributed resource management method may further have the following features: the mapping between the virtual resource and the real resource is performed by writing the number of the corresponding real resource in the virtual resource record in the virtual resource table, and is in use The real resource table on the resource management board of the real resource is set to the mapped state, and the resource management board information using the real resource is recorded.

Further, the foregoing distributed resource management method may further have the following features: In the step (b), the resource management board periodically sends a global resource table request message from another resource management board, and the other resource management boards receive the message. After that, the type and quantity of available real resources monitored by the board are returned; or the resource management module periodically broadcasts real resource information available to the board to other modules.

 Further, the foregoing distributed resource management method may further have the following features: In the step (b), the resource management board sets a timer when the power is turned on, and after the timer expires, the step (c) is performed. ', and before the timer expires, the available real resources of the board are not sent or queried as global shared resources.

Further, the foregoing distributed resource management method may further have the following features: In the step (c), the resource management board first searches for the same real resource in the board as the available state, and when the board is not found, The global shared resource information saved by this board finds the available real resources. The resource management board should send a resource borrowing request, and obtain a mapping relationship between the virtual resource and the real resource that is allowed to be borrowed.

 Further, the foregoing distributed resource management method may further have the following features: further comprising: the resource management board notifying that the real resource cannot be normally operated or receiving the notification that the real resource sent by the other resource management board cannot be normally operated The real resource status is set to be unavailable. When the real resource is mapped, the resource management board that uses the real resource is also notified to release the mapping relationship between the virtual resource and the real resource, and an attempt is made to create a new resource for the virtual resource. Mapping.

Further, the foregoing distributed resource management method may further have the following features: The method further includes the following steps: when the resource management board detects that the available real resources increase, the status of the real resources is set to be available, and the resource management board is the resource management board. Similar virtual resources that have not been mapped are mapped to these real resources, and redundant available real resources are added to the global shared resource table.

 Further, the foregoing distributed resource management method may further have the following features: The following steps are further included: when the virtual resource configured by the resource management board is increased, an attempt is made to establish a mapping relationship between the real resource and the real resource; The existing virtual resource is deleted and the virtual resource is deleted. If the original real resource is in the resource management board, the status is set to be available and added to the global shared resource table. The real resource is not in the resource management board. When notified, the resource management board to which it belongs is set to its status.

 Further, the foregoing distributed resource management method may further include the following steps: The resource management board periodically checks the usage rate of the virtual resource of the resource management board, if the usage rate of a mapped virtual resource is lower than For a certain set value, the mapping relationship between the virtual resource and the real resource is released, and the real resource state is set to be available. If the usage rate of an unmapped virtual resource is greater than a certain set value, it is searched for A real resource is available to establish a mapping relationship.

It can be seen from the above that the maximum features of the system and method of the present invention first configure virtual resources (by abstracting the concept of virtual resources), and utilize the mapping of virtual resources and real resources to achieve global shared resources through adaptation. . The invention ensures that the software implementation part that needs to use the resource only needs to apply for resources to the resource management module on the RMB, and there is no problem of borrowing resources across boards, so each application The time to ask for resources is fixed and very fast. Therefore, the software for applying for resources is greatly simplified in the processing flow, which improves the efficiency of the system and enhances the reliability of the system.

 In addition, due to the use of virtual resources for allocation, the versatility of the upper layer software is enhanced. Although the source of resources is constantly being used, it is released. However, as long as the mapping relationship is unchanged, there is no impact on the business (upper layer software), because the state of the virtual resource can be used as long as it is available.

BRIEF abstract

 FIG. 1 is a schematic diagram of a network structure of a distributed resource in an embodiment of the present invention.

 FIG. 2 is a schematic diagram of a resource application process of the existing distributed resource management.

 FIG. 3 is a schematic diagram of a resource application process in a virtual resource condition according to an embodiment of the present invention.

 4 is a schematic diagram of mapping of DTMF (Dual Tone Multi-Frequency) virtual resources and real resources in an example of the present invention.

 Fig. 5 is a flow chart showing the process of obtaining a global shared resource table from RMB1 to other RMBs in the above example.

 Figure 6 is a flow chart showing the borrowing of real resources from RMB1 to other RMB in the above example. BEST MODE FOR CARRYING OUT THE INVENTION

 The invention is further described below in conjunction with the drawings and specific embodiments.

 The network structure of the distributed resource management system of this embodiment is the same as that of FIG. 1. Each RMB includes a resource monitoring module, a resource management module, and a resource usage module, where:

 The resource monitoring module is configured to periodically monitor the status of the RSB real resource configured for the RMB, and notify the resource management module of the RMB to modify when the status changes. These states include: Whether the RSB is in place, whether it can run normally, RSB Is there any damage to the real resources?

 The resource usage module is used to apply for resources to the resource management module on the RMB.

The resource management module is configured to record the real resource status and the usage status of the RMB monitoring, and obtain and record the available real resource information of each RMB board periodically, and find available real resources for the virtual resources configured by the RMB and establish a mapping relationship between the two. And allocate available virtual resources when the resource request is received and return the corresponding real resource number. It further includes the following units: The resource information storage unit is configured to save the real resource table, the virtual resource table, and the global shared resource table. The real resource table records the number and status of each real resource monitored by the RMB, and the RMB number of the real resource (which can be used by default when the RMB is used). The real resource is identified by a number. Each RSB board is numbered. When multiple real resource instances are provided on the RSB board, the real resource instance is also assigned a number, so that the number can be used to uniquely determine which RSB board is on which RSB board. A real resource instance.

 The virtual resource table records the number of each virtual resource in the RMB configuration, the mapping flag, and the mapped real resource number. The virtual resources of RMB can be configured as needed, that is, how much is needed, and the configuration can be implemented manually or by registration.

 The global shared resource table records the number of the RMB and other RMBs in the system and the types of monitoring resources and the number of available real resources. The real resources available in the table are normal running and have no mapping relationship with the virtual resources, and can be used by all RMBs. The real resources used.

The shared resource information maintenance unit is configured to periodically send a message for obtaining the global shared resource to other RMBs, or return the number and type of real resources available to the RMB after receiving the message, and implement the global shared resource table according to the information obtained from other RMBs. Timing updates, while mapping within the RMB completion board and there are available real resources, add these available real resources to the global resource sharing table for query. In this way, a fast mapping of virtual resources and real resources is realized on RMB.

 The mapping establishment processing unit is configured to find available real-world resources of the virtual resources configured for the RMB and establish a mapping relationship between the two. Includes:

 An intra-board mapping sub-unit is configured to search for a virtual resource that has not yet been mapped. If the real resource of the same type is found in the real resource table of the RMB, the state of the real resource is mapped and is in the virtual state. Fill in the record of the resource with the number of the real resource.

 An inter-board mapping sub-unit is configured to search for a global shared resource table to find real resources available on other RMBs when the real resource is not available in the RMB, and then send a request to the RMB after the discovery, and obtain a record of the virtual resource after confirmation. Fill in the number of the real resource, and delete the record corresponding to the real resource or invalidate it when receiving the message that refuses to borrow.

Inter-board mapping confirmation sub-unit, used to receive requests for borrowing real resources from other RMBs At this time, the current state of these real resources is judged, an acknowledgment message is returned when available, and the state of these real resources is set to mapped, otherwise a message rejecting the borrowing is returned.

 a resource allocation unit, configured to allocate an available virtual resource when the resource application is received (the virtual resource is available only after mapping with the real resource), and returns the virtual resource corresponding to the virtual resource table. Resource number, a failure message is returned if no virtual resources are available.

 The resource management control unit is configured to coordinate and control each unit to complete adaptive management of the distributed resources, and further includes:

 The power-on control sub-unit is configured to set a timer to wait for the RSB of the RMB to operate normally after the system is powered on, and start a process of acquiring the global shared resource, and start the process of mapping establishment after the timer expires.

 The real resource change processing sub-unit is configured to: when the real resource is reduced or the notification that the real resource sent by the other RMB cannot be normally operated, the real resource status is set to be unavailable, and when the real resource is mapped, the real resource is also notified. The RMB of the real resource is used to release the mapping relationship between the virtual resource and the real resource, and an attempt is made to establish a new mapping for the virtual resource. When the available real resources increase, the 'states' of these real resources are made available, and the mapping of these real resources to the virtual resources of the same type on the RMB is established, and the redundant available real resources are added to the global shared resource table.

 The virtual resource change processing sub-unit is configured to try to establish a mapping relationship between the virtual resource and the real resource when the configured virtual resource increases. When the configured virtual resource is reduced, the existing mapping relationship (if any) of the virtual resource is removed, and the virtual resource is deleted from the virtual resource table. When the original mapped real resource is in the RMB, the state is set to be available. And join the global shared resource table, the real resource is not in the RMB, notify its RMB to make its status available.

Based on the above distributed resource management system, all the real resources and the virtual resources required for each RMB need to be configured before the system is running, and these resource numbers are numbered and written into their respective lists in the RMB. This embodiment assumes that more real resources are available than configured virtual resources.

After the system is powered on, the process of completing the initial resource mapping of RMB1 includes the following steps: Step 1: After the power-on of RMB1 is successful, first send an event message of the global shared resource to the monitoring module of other RMB to obtain other RMB in the global shared resource table. Corresponding record in , At the same time, a delay timer (Ti, i can be arbitrarily set according to programming requirements) is set, waiting for the normal operation of the RSB board monitored by the monitoring module on RMB1;

 Step 2: Before the timer (Ti) on the RMB1 times out, when the monitoring module of the RMB1 finds that the monitored RSB is running normally, it immediately sets the flag bit (or the status bit) in the real resource table corresponding to the RSB. The logo available on;

 Before the timeout message of the delay timer (Ti) arrives, the other RMB sends an event message of the global shared resource to the RMB1. The RMB1 has the following two processing methods: 1) no response; 2) responding to the requester RMB1 in the global shared resource table There are no shared resources available in the middle. There may be one of two methods, the purpose of which is to ensure that other RMB will not have RMB1 available resource information in their global shared resource table before the RMB1 timer (Ti) times out.

 Step 3: After the event that the RMB1 receives its own timer (Ti) timeout, it finds the virtual resource that has not been mapped with the real resource from the virtual resource table in turn, and then finds that the status bit is available and is the same from the real resource table. The real resource of the type, and then fill in the record of the virtual resource in the virtual resource table, and set the status bit status of the real resource in the real resource table to be mapped, thereby implementing the RMB1 monitoring. Mapping of RSB resources to virtual resources of RMB1;

Step 4: Determine whether all virtual resources configured in RMB1 have real resources mapped to them, and if yes, perform step 5, otherwise, perform step 6;

 Step 5: Check whether there is a real resource with the status bit as the available flag on the RMB1. If yes, put all the remaining real resources into the global shared resource table on the RMB1, and wait for other RMB to periodically obtain the corresponding information. End;

 Step 6: At this time, there is still no virtual resource mapped on RMB1, and the RSB monitored by RMB1 is not available yet, then it is found from the global shared resource table of RMB1 whether other RMBs have the same type of available real resources, if If yes, go to Step 7. Otherwise, go to Step 11; Step 7: RMB1 sends a borrowing real resource request message to other RMBs that monitor the real resource (assumed to be RMB2);

Step 8: After receiving the borrowing real resource request message, RMB2 judges whether the real resource is actually available. If yes, go to step 9. Otherwise, return the failure message, and RMB1 will return the real resource. The off record is deleted (or invalidated), and then returns to step 6, which is to find other available real resources in the global shared resource table;

 Step 9: RMB2 determines the real resource to be mapped with the virtual resource, sets the state of the real resource to the mapped in the real resource table, records the borrowed RMB1 number, and returns a confirmation to allow the borrowing of the real resource to the RMB1. Message, and provide the borrowed real resource number;

 Step 10: After receiving the response message of borrowing the real resource, RMB1 establishes a mapping relationship between the virtual resource and the borrowed real resource, and ends;

 Step 11: At this time, if the virtual resource cannot find the corresponding real resource, the operation duty person is notified to handle the processing.

 It can be seen that in order to avoid the complexity and uncertainty of the process, the above process optimizes the resources monitored by the RMB when resource mapping of the virtual resources on the RMB, especially in the case of just powering up, the RMB needs to wait for a short time. It is confirmed that the resources monitored by the RMB are successfully running, and the idle resources monitored by other RMBs are allowed to be mapped only when the resources monitored by the RMB are still not running.

After the system has been running stably (after completing the above preliminary mapping process), maintenance of the global shared resource table and resource allocation are required. In addition, when the real resources increase or decrease, and the configuration of virtual resources increases or decreases, the mapping relationship between the two needs to be processed.

 Maintenance of global shared resource tables

 In order to maintain the global shared resource table on each RMB and realize real-time refresh, the RMB is set after the power-on is completed from other RMBs (how many RMBs are known according to the configuration), and the information required for the global shared resource table is obtained for the first time. A timer periodically sends a global resource table request message to other RMBs. The other RMB board returns the type and quantity of real resources available for monitoring by the board. The RMB then fills in the global shared resource table according to the information, including the monitoring module. Fields such as the number of the RMB, the resource category, and the number of available real resources.

The global shared resource table data may also be updated in various other manners, such as: The resource management module periodically broadcasts the real resource information available on the module to other modules. Processing when real resources are reduced

 When the system is running, the monitoring module of RMB monitors the running status of the RSB. It is assumed that RMB1 detects that some real resource instances on the RSB or RSB monitored by this RMB are not working properly.

 Step A, RMB1 indicates that all the real resource instances that are not working properly are marked as unavailable in the corresponding status bits in the real resource table;

 Step B: RMB1 searches for the local real resource table, and determines whether the real resource has a mapping relationship with the virtual resource. If not, the process ends directly; otherwise, the next step is performed;

 Step C, RMB1 determines whether the RMB using the real resource is the current RMB according to the record of the real resource table, and if yes, directly cancels the mapping relationship between the virtual resource and the real resource, that is, deletes the real resource in the corresponding record of the RMB1 virtual resource table. No., execute the next step; if it is not the real resource monitored by the RMB, immediately notify the RMB that uses the real resource. After receiving the notification, the RMB immediately removes the mapping relationship between the real resource instance and the virtual resource in the virtual resource table. Carry out the next step;

 Step E: Check whether the resource usage module occupies the virtual resource by using the RMB of the real resource. If yes, immediately notify the resource to use the module for corresponding processing, and perform the next step; otherwise, directly execute the next step;

 Step F: Use the real resource's RMB to locally find a real resource for the virtual resource to establish a mapping relationship. If not, try to establish the virtual resource and other RSB monitored RSB resources according to the method of step 6 to step 11. Mapping relationship.

 If the RSB board is reduced, the real resource is reduced. In step A, the real resource can be directly deleted from the real resource table.

Processing when available real resources increase

When the system is running, it is assumed that the RSB detects that the RSB monitored by the RMB has a working board or a real resource instance. For example, before the timer (Ti) times out, the RSB monitored by the RMB is not running normally, and the RSB is in the timer. (Ti) starts running after timeout, resulting in an increase in available real resources. Perform the following processing flow: Step H, RMB1 sets the status of these real resources to be available in the real resource table; Step I, RMB1 checks whether there is a virtual resource of the same type that has not been mapped with the real resource in the virtual resource table, if yes, step J is performed, otherwise, step K is performed;

 Step J, RMBl establishes a mapping relationship between the virtual resource and the newly added real resource. If there are more new real resources, perform the next step, otherwise, end;

 Step K: Put the newly added real resources that have not been mapped into the global shared resource table of the RMB, and wait for the timing of other RMB to obtain the corresponding information.

Processing when the configured virtual resources increase

 When the system is running, assuming that the virtual resources configured for RMB1 are increased, the following process is processed: RMB1 first searches the real resource table of the board to find out whether there are real resources available, and if so, establishes a mapping relationship between the two; If the real resource or some of the virtual resources are not mapped, the mapping between the virtual resource and the RSB resources monitored by other RMBs is attempted according to the method of step 6 to step 11.

Processing when the configured virtual resources are reduced

 When the system is running, if the virtual resource configured for RMB1 is reduced, the following process is processed: RMB1. The mapping between the virtual resource and the original real resource is directly removed, and then the virtual resource is deleted in the virtual resource table. If the real resource is a local real resource, its status is directly changed to available. If it is a real resource monitored by other RMB, the RMB is notified, and the status of the original real resource is changed to available by the RMB.

Process of applying for resources

FIG. 3 is a resource application process in a resource management manner using virtual resources in this embodiment. The resource management module of the RMB manages only the virtual resources of the RMB, so that the resource usage module (such as the call processing module) applies for the virtual resources to the resource management module on the RMB, and the virtual resources are only available in the same real resource. After the mapping is available, the resource management module determines whether there is a virtual resource available to the RMB, and if not, returns a failure message to the resource usage module. If yes, assign a virtual resource to it, and obtain the unique real resource corresponding to the virtual resource through the virtual resource table. Number, returned to the resource usage module.

 Therefore, in this embodiment, the automatic maintenance of the mapping relationship does not require the borrowing of the resources across the board, so that the time for applying the resources by the resource using module is fixed and very fast. And the processing flow of the resource usage module is greatly simplified, and the efficiency is improved.

The method of the above embodiment will be described in detail below by an application example.

 Figure 4 shows the mapping relationship between virtual resources and real resources in this application. There are now 10 real DTMF resources, numbered DTMF1 ~ DTMF10, 3 resource management boards RMB, numbered RMB1 ~ RMB3, and each resource management board RMB is configured with 3 virtual DTMF resources, of which the monitoring module of RMB1 is configured. 2 real resources (DTMF1 and DTMF2), the monitoring module of RMB2 is configured with 4 real resources (DTMF3 ~ DTMF6), and the monitoring module of RMB3 is configured with 4 real resources (DTMF7 ~ DTMF10), as indicated by the solid line in Figure 4. This configuration relationship.

 According to the agreed rules: The virtual resources on the monitoring RMB are optimized for the resources monitored by the RMB. When all the boards are powered on, RMBK RMB2 and RMB3 are started, and the real resources DTMF1 ~ DTMF10 are also started normally. Then the virtual DTMF resource of RMB2 and the real resource DTMF3 ~ DTMF5 - mapping, the same virtual DTMF resource of RMB3 and the real resource DTMF7 ~ DTMF9 - mapping, as shown by the dotted line in Figure 4; assume that the real DTMF6 of RMB2 is still in Available status, real DTMF10 monitored by RMB3 is also available. RMB1 Configuration Three virtual DTMF resources are first mapped with the real resources DTMF1 and DTMF2 monitored by this RMB. There is still a virtual DTMF3 resource that is not mapped. It can only be temporarily empty, and virtual DTMF3 resources are not available.

After the power-on of the RMB 1 is successfully sent to the other RMB, the global resource table request message is first obtained to obtain the corresponding record of the global shared resource table. Therefore, there may be two records in the global shared resource table on the RMB1, that is, one of the RMB2 is available. The real resource DTMF6, RMB3 has a real resource DTMF10 available. In order to maintain the refresh of the global shared resource table on each RMB, the RMB is set from the other RMBs after the power-on is completed (the total number of RMBs can be known according to the configuration). After the first record of the global shared resource table is obtained, a timer is set. Regularly obtain a global resource table request message from other RMBs to obtain other RMB global shared resource tables, as shown in FIG. 5, that is, RMB1 sends a global resource table request message to RMB2 and RMB3, and globally shares the message. The information corresponding to RMB2 and RMB3 in the resource table is obtained to RMB1, and the information obtained from RMB1 and RMB3 is also filled in the global shared resource table on the board, and RMB3 is also filled in from the information obtained in RMB1. and RMB2. A global shared resource table on the board.

 As shown in FIG. 6, when RMB1 finds that the real resource DTMF6 available on RMB2 and the real resource DTMF10 available on RMB3 from the global shared resource table, it is assumed that RMB1 first borrows the real resource request message from RMB2, and RMB2 receives the borrowed real resource. After requesting the message, it scans whether the real DTMF resource monitored by the RMB is really rich and is not borrowed by other RMB. As a result, it is found that DTMF6 is available, so that the resource of DTMF6 is marked and managed by RMB1, and then the real resource is borrowed from RMB1. The response message, after receiving the response message of the real resource, RMB1 completes the mapping relationship between the virtual resource DTMF3 and the real resource DTMF6.

 During the operation, RMB2 finds that the DTMF6 monitored by itself is not working properly. Therefore, RMB2 finds that DTMF6 is managed by RMB1 from the DTMF resources, so immediately informs RMB1 that DTMF6 is unavailable, and RMB1 immediately receives the virtual DTMF resource after receiving the message. The mapping relationship between DTMF6 is released, and it is checked whether there is a call processing module occupied. If so, the corresponding call processing module is immediately notified to perform corresponding processing; then, in the global shared resource table, it is checked whether DTMF is available, if any Then, the flow of FIG. 5 is repeated. If there is no alarm that can be notified by the sound, light, etc., the virtual duty resource has no real resource corresponding, and the operation duty personnel intervene. For example, replace the RSB that cannot work or configure a new RSB to solve the problem in advance, instead of waiting for the resource to be really unavailable, to ensure the reliability of the system.

Second embodiment

In the first embodiment, under the condition that the real resources of the entire system are configured more than the configured virtual resources, and the configured real resources are all working normally, the processing flow thereof can completely ensure the reliable operation of the system. However, when the configured virtual resources are configured with real resources, or if there are too many real resources that cannot work, resulting in fewer real resources that can work, such as when the resources are used unevenly, some virtual objects on the RMB will appear. The resource usage is low, which causes the mapped real resources to be occupied. The other resources on the RMB are not available because the virtual resources are not mapped to the real resources, which leads to the resource usage module not being used. The situation where the application fails to apply for resources appears. In order to overcome this situation, the present embodiment proposes a completely dynamic adaptive mechanism based on the method and system of the first embodiment, that is, dynamically adjusts the mapping relationship according to the usage rate of the virtual resources in the stable operation of the system. A mapping relationship adjusting unit is added to the resource management module to perform the following processing: After the stable operation of the system of the RMB board, a timer Tj is set (the timing time can be arbitrarily set according to programming requirements), and the timer Tj is timed. Check the usage rate of the virtual resource of the RMB. If the usage rate of a virtual resource is lower than a certain value, the mapping relationship between the virtual resource and the real resource is released, and the real use of the RMB is temporarily used. Resource, set its state to be available, and add it to the table by timing updates to the global shared resource table; if a virtual resource usage rate is greater than the set value and no mapping is established with the real resource, then re- It seeks to establish a mapping relationship with real resources to increase the number of available virtual resources. This dynamic adaptive mode is only enabled if the working real resources are less than the configured virtual resources. It is not necessary to enable it under normal circumstances.

In summary, the resource management method using the virtual resource provided by the present invention does not appear in the above example because of the adaptive processing flow and the automatic virtual resource and real resource mapping in the non-call process. Multiple cross-board calls occur to cause a call loss.

Industrial applicability

 The invention can be applied to a distributed computer system, realizes the management of distributed resources through the configuration of virtual resources, and greatly simplifies the software processing flow of applying for resources.

Claims

Claim A dynamically adaptive distributed resource management system, comprising a plurality of resource management boards and a plurality of resource boards, wherein the resource management board includes a resource monitoring module and a resource management module, and the resource board has one or more Real resources, which are characterized by:  The resource monitoring module is configured to monitor the status of the real resources on the resource boards configured on the resource management board and notify the resource management module of the resource management board;  The resource management module is configured to record the real resource status and usage of the resource management board, and obtain and record the information of the real resources available on each resource management board, and find available resources for the virtual resource configured on the resource management board. The same kind of real resources and establish a mapping relationship between the two, allocate available virtual resources when receiving the resource application and return the information of the real resources with which they are mapped.  2. The distributed resource management system according to claim 1, wherein the resource management module further comprises the following units:  a resource information storage unit, configured to record a status of each real resource monitored by the resource management board and information of a resource management board using the real resource, and information about each virtual resource configured by the resource management board and the real resource mapped by the resource management board And the available real resource information monitored by each resource management board in the system; the shared resource information maintenance unit is configured to periodically obtain information about the available real resources from other resource management boards, and implement timing update of the global shared resources, and at the same time After the mapping between the real resource and the virtual resource is completed, the remaining available real resources are advertised or queried as global shared resources. The resource allocation unit is configured to allocate available virtual resources and return the virtual resource when the resource application is received. The real resource identifier corresponding to the virtual resource, if no virtual resource is available, the failure message is returned; the mapping establishment processing unit is configured to find the available real resource in the global scope and establish both of the virtual resources configured for the resource management board. Mapping relations;  The resource management control unit is configured to coordinate and control each unit of the resource management module, and complete various functions of the resource management module.  3. The distributed resource management system according to claim 2, wherein the resource information storage unit stores the following list: The real resource table records the identification and status flags of each real resource monitored by the resource management board. And the identification of other resource management boards that use the real resource;  The virtual resource table records the identifier, mapping flag, and mapped real resource identifier of each virtual resource configured by the resource management board;  The global shared resource table records the identifiers of the various resource management boards in the system and the number and types of available real resources monitored. ,  The distributed resource management system according to claim 2, wherein the mapping establishment processing unit further comprises:  An intra-board mapping sub-unit is configured to search for a virtual resource that has not been mapped, and find a real-life resource that is available in the real resource table of the resource management board, and set the state of the found real resource to be mapped and record the virtual resource. The mapping relationship between the resource and the real resource;  The inter-board mapping establishment sub-unit is configured to search for the saved global shared resource, find the real resource available on the other resource management board, and then issue a borrowing request to the resource management board, and after the confirmation, record the virtual resource and the real resource. Mapping relationship, when receiving a message rejecting borrowing, deleting the record corresponding to the real resource or invalidating it;  An inter-board mapping confirmation sub-unit is configured to determine the current state of the real resources when receiving requests for borrowing real resources from other resource management boards, return an acknowledgement message when it is actually available, and state the real resources. Set to mapped, otherwise return a message that refuses to borrow.  The distributed resource management system according to claim 2, wherein the resource management control unit includes a power-on control sub-unit, configured to set a timer to wait for the resource management board after the system is powered on. The resource board is running normally, and the process of obtaining the global shared resource is started. After the timer expires, the mapping establishment process is started.  The distributed resource management system according to claim 5, wherein the resource management control unit includes a real resource change processing sub-unit for transmitting real resources or receiving other resource management boards. When the real resource is not working properly, the real resource status is set to be unavailable. When the real resource is mapped, the resource management board that uses the real resource is also notified to release the mapping relationship between the virtual resource and the real resource. And try to create a new mapping for this virtual resource. The distributed resource management system according to claim 6, wherein the real resource change processing sub-unit is further configured to set the state of the real resources when the available real resources increase It can be used to establish mappings with these real resources for the same kind of virtual resources that are not mapped on the resource management board, and add the redundant available real resources to the global shared resource table.  The distributed resource management system according to claim 5, wherein the resource management control unit includes a real resource change processing sub-unit, configured to try to establish and implement a real resource when the configured virtual resource increases. When the configured virtual resource is reduced, the existing mapping relationship of the virtual resource is removed and the virtual resource is deleted. When the original mapped real resource is in the resource management board, its state is set to be available and added to the global share. The resource table, when the real resource is not in the resource management board, informs its resource management board to make its status available.  The distributed resource management system according to claim 1, wherein the resource management module further comprises a mapping relationship adjusting unit, configured to periodically check the usage rate of the virtual resource of the resource management board, if one has If the usage rate of the mapped virtual resource is lower than a certain value, the mapping relationship between the virtual resource and the real resource is released, and the real resource state is set to be available. If the usage rate of an unmapped virtual resource is greater than a certain value. The set value is used to establish a mapping relationship for the real resources that are available for it.  10. A dynamically adaptive distributed resource management method for a distributed resource management system comprising a plurality of resource management boards and a plurality of resource boards, comprising the steps of:  (a) Configure all real resources and virtual resources required by each resource management board in the system, identify these resources and save them in the resource management board;  (b) After the power management of the resource management is successful, monitor the status of each real resource configured for it and mark the status, and obtain the information of the real resources available from other resource management boards to realize the global shared resources. Timing update  (c) The resource management board does not have the virtual resources mapped to the real resources. The board and other resource management boards find the same kind of real resources that are available in the status of the board, and find the mapping relationship between the two. The state of the real resource is set to be mapped, and after the processing is completed, the remaining available real resources are taken as global shared resources;  (d) When applying for a resource, the resource management board allocates the available virtual resources and returns the real resource identifier corresponding to the virtual resource. If no virtual resources are available, the failure message is returned. The distributed resource management method according to claim 10, wherein the resource management board records information of real resources, virtual resources, and global shared resources by saving the following list. Relationship between the information and the information: The real resource table records the identification and status flags of each real resource monitored by the resource management board, and the identifiers of other resource management boards that use the real resource. The virtual resource table records the resources. The identifier of each virtual resource configured by the management board, the mapping flag, and the mapped real resource identifier; and the global shared resource table record the identifiers of the resource management boards in the system and the number and types of available real resources monitored by the system.  The distributed resource management method according to claim 11, wherein the mapping between the virtual resource and the real resource is performed by writing the number of the corresponding real resource in the virtual resource record in the virtual resource table. And setting the state of the real resource to be mapped in the real resource table on the resource management board using the real resource, and recording the resource management board information using the real resource.  The distributed resource management method according to claim 10, wherein in the step (b), the resource management board periodically sends a global resource table request message from another resource management board, and other resource management boards After receiving the message, the type and quantity of available real resources monitored by the board are returned. Alternatively, the resource management module periodically broadcasts real resource information available on the board to other modules.  The distributed resource management method according to claim 10, wherein in the step (b), the resource management board sets a timer at the time of power-on, and executes the timer after the timer expires. Step (c), and before the timer expires, the available real resources of the board are not sent or queried as global shared resources. The distributed resource management method according to claim 10, wherein, in the step (c), the resource management board first searches for a real resource of the same type in the board, and the resource is not found on the board. Then, the global shared resource information saved in the board is used to find the available real resources. When found, the resource borrowing request is sent to the corresponding resource management board, and the mapping relationship between the virtual resource and the real resource allowed to be borrowed is obtained. .  The distributed resource management method according to claim 10, further comprising the step of: the resource management board fails to monitor that the real resource cannot be operated normally or receives the real resource sent by the other resource management board. When the notification of the normal operation is set, the real resource status is set to be unavailable. When the real resource is mapped, the resource management board that uses the real resource is also notified to release the mapping relationship between the virtual resource and the real resource, and try to Virtual resources create new mappings. 17. The distributed resource management method according to claim 10, further comprising The following steps are performed: when the resource management board detects that the available source of resources is increased, the status of the real resources is set to be available, and mappings of the real resources that are not mapped to the resource management board are established. Add redundant real resources to the global shared resource table.  The distributed resource management method according to claim 10, further comprising the steps of: when the virtual resource configured by the resource management board is increased, attempting to establish a mapping relationship between the virtual resource and the real resource; When the virtual resource is reduced, the existing mapping relationship of the virtual resource is removed and the virtual resource is deleted. When the original mapped real resource is in the resource management board, the state is set to be available and added to the global shared resource table. When the resource management board is notified, its resource management board is notified that its status is made available.  The distributed resource management system according to claim 10, further comprising the following steps: the resource management board periodically checks the usage rate of the virtual resource of the resource management board, if a virtual resource is mapped When the usage rate is lower than a certain set value, the mapping relationship between the virtual resource and the real resource is released, and the real resource state is set to be available. If the usage rate of an unmapped virtual resource is greater than a certain set value, Then find a mapping relationship for the real resources that are available for it.