CN101770400B - Round robin resources distribution method and system - Google Patents
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Abstract
The invention discloses a Round robin resource distribution method and a system. The method includes that: a resource management unit maintains a queue, each node in the queue respectively corresponds to a resource processor connected with the resource management unit, and load bearing parameters of the corresponding recourse processor are recorded in each node. When the recourse management unit distributes resources for services, beginning from the recourse processor at the present position in the queue, when the recourse processor which meets the recourse distributing condition is searched along the sequence of the queue, then resources are distributed for the services on the recourse processor. The resources can be distributed reasonably in the resource processor by using the method of the invention, the processing ability of the system is increased, in addition, the performance deterioration of the whole system which is caused by the resource processor failure incapable of being monitored by a driver software is avoided.
Description
Technical field
The present invention relates to the resource management and allocation method in the communication system, relate in particular to a kind of repeating query resource allocation methods and system.
Background technology
In communication system, signal/data need to be carried out modulating/demodulating, multiplex/demultiplex in the transmittance process from the information source to the stay of two nights, use the different agreement transmission at different media.The capacity of communication system is determined by the unit quantity of finishing these functions.The communication system that can drop into actual use must comprise a considerable amount of units of variety classes, can be referred to as resource.And the management of resource in the system is the key factor of decision systems capacity and performance.
Resource in the communication system, the more new development along with technology not only refers to simple hardware element, also comprises the process instance that operates on the processor.Can realize the power system capacity expansion by the processor number in the increase system.Ignore in the difference situation of bearer service, the load of processor and process instance take several positive correlations.What process instance carried is professional different, can be different on the load impact of processor.Can reduce owing to crossing the relative normal load processor of all quality of services of the processor carrying of high load capacity, so the load balancing of resource handler is the Fundamentals that architecture design and policy selection must be considered in the system.
Realize resource management in the communication system at present, the most basic pattern is the centralized management framework, by rm-cell unique in the system all resources are distributed unitedly management, its load and the positive correlation of system configuration capacity: in case power system capacity acquires a certain degree, the resource processing unit can cause systemic breakdown because of overload, so centralized resource management must take into account the computational load of rm-cell.In order to realize the load balancing of resource handler, basic a kind of resource allocation policy is the minimum processor of load in each selective system.The realization of this strategy can be based on following dual mode:
Mode 2, the load condition of all processors distributes in the real time computation system in business foundation, release, resource handler fault, fault recovery etc. are processed, and selects accordingly the lightest resource handler of load during service request.
The problem that above two kinds of strategies exist is that tactful computational load is large or processing is too frequent, and when power system capacity acquired a certain degree, the load of rm-cell can must become the bottleneck of power system capacity expansion.
In addition, when driving layer software when resource handler generation hardware fault and not reporting rm-cell, the business that is based upon on this processor can be discharged by the user rapidly in a large number because of fault, thereby cause the load of this resource handler relatively low in system, this resource far above other resource handlers, and then is caused the whole system performance to worsen rapidly by the probability of again sub-distribution under this allocation strategy.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of repeating query resource allocation methods and system, reasonable distribution resource in resource handler, save resource and distributed the time, the processing power of raising system is avoided because the whole system mis-behave that the resource handler fault that drive software can't monitor causes.
In order to address the above problem, the invention provides a kind of repeating query resource allocation methods, comprise: rm-cell is safeguarded a formation, each node corresponds respectively to the resource handler that links to each other with described rm-cell in the formation, and records the load carrying parameter of respective resources processor in each node; Described rm-cell is that business is carried out resource and divided timing, the resource handler of current location begins from described formation, when satisfying the resource handler of resource allocation condition along the sequential search to of described formation, be the traffic assignments resource at this resource handler.
Further, described rm-cell travels through all resource handlers in the described formation, when not finding the resource handler that satisfies distributive condition, making the resource of localised load apportionment mode distributes namely: begin to select the minimum resource handler of load as the current location resource handler the resource handler of M available free example along described queue sequence from the resource handler of current location, and be the traffic assignments resource at this resource handler, the value of M is by default.
Further, be provided with localised load apportionment mode sign and threshold value N in the rm-cell, and when system initialization, the value that this localised load apportionment mode sign is set is 0; Rm-cell is in resource allocation process, and after the resource of a localised load apportionment mode of use was distributed, the value that this localised load apportionment mode is identified added 1, and records the resource handler sign that this resource is distributed; Rm-cell is after the resource allocation request that at every turn receives new business, judge that this localised load apportionment mode ident value is greater than 0 and during less than N, then the resource handler with the rm-cell record identifies corresponding resource handler as the current location resource handler, be the traffic assignments resource at this resource handler, and the value of this localised load apportionment mode sign is added 1; Judge when this localised load apportionment mode ident value equals N, the resource handler of rm-cell record is identified corresponding resource handler as the current location resource handler, be the traffic assignments resource at this resource handler, and the value of this localised load apportionment mode sign is set to 0; Judge that this localised load apportionment mode ident value equals at 0 o'clock, the resource handler of current location begins from described formation, when satisfying the resource handler of resource allocation condition along the sequential search to of described formation, be the traffic assignments resource at this resource handler; Wherein, N is the integer more than or equal to 1, and N is arranged according to power system capacity by rm-cell.
Further, described load carrying parameter comprises load carrying amount and the instance number that takies process; The value that the described resource handler that satisfies resource allocation condition refers to its load carrying amount is less than the load thresholding, and the instance number that takies process is less than the example thresholding, and described load thresholding and described example thresholding are definite by system.
Further, in system's operational process, described rm-cell is safeguarded described formation, after the rm-cell distribution services or after professional the release, load carrying amount and when taking the process instance number and changing in the resource handler, described rm-cell carries out corresponding renewal to the parameter of corresponding node in the described formation.
In order to address the above problem, the present invention also provides a kind of repeating query resource allocation system, comprise rm-cell and a plurality of resource handler, described rm-cell comprises formation maintenance module and resource distribution module, and described resource handler comprises the load monitoring module; Described load monitoring module is used for monitoring the load carrying parameter of described resource handler and reporting described rm-cell; Described formation maintenance module is used for safeguarding a formation that each node corresponds respectively to the resource handler that links to each other with described rm-cell in the formation, and records the load carrying parameter of respective resources processor in each node; Described resource distribution module, divide timing carrying out resource for business, the resource handler of current location begins from described formation, when satisfying the resource handler of resource allocation condition along the sequential search to of described formation, is the traffic assignments resource at this resource handler.
Further, described resource distribution module, also be used for traveling through all resource handlers of described formation, when not finding the resource handler that satisfies distributive condition, making the resource of localised load apportionment mode distributes namely: begin to select the minimum resource handler of load as the current location resource handler the resource handler of M available free example along described queue sequence from the resource handler of current location, and be the traffic assignments resource at this resource handler, the value of M is by default.
Further, described resource distribution module also is used for being provided with localised load apportionment mode sign and threshold value N, and when system initialization, the value that this localised load apportionment mode sign is set is 0; Also be used at rm-cell at resource allocation process, use the resource of a localised load apportionment mode to distribute after, the value of this localised load apportionment mode sign is added 1, and records the resource handler sign that this resource is distributed; Also be used for after the resource allocation request that at every turn receives new business, judge that this localised load apportionment mode ident value is greater than 0 and during less than N, then the resource handler with the rm-cell record identifies corresponding resource handler as the current location resource handler, be the traffic assignments resource at this resource handler, and the value of this localised load apportionment mode sign is added 1; Judge when this localised load apportionment mode ident value equals N, the resource handler of rm-cell record is identified corresponding resource handler as the current location resource handler, be the traffic assignments resource at this resource handler, and the value of this localised load apportionment mode sign is set to 0; Judge that this localised load apportionment mode ident value equals at 0 o'clock, the resource handler of current location begins from described formation, when satisfying the resource handler of resource allocation condition along the sequential search to of described formation, be the traffic assignments resource at this resource handler; Wherein, N is the integer more than or equal to 1, and N is arranged according to power system capacity by rm-cell.
Further, described load carrying parameter comprises load carrying amount and the instance number that takies process; The value that the described resource handler that satisfies resource allocation condition refers to its load carrying amount is less than the load thresholding, and the instance number that takies process is less than the example thresholding, and described load thresholding and described example thresholding are definite by system.
Further, described formation maintenance module, also be used for after the rm-cell distribution services or after professional the release, load carrying amount and when taking the process instance number and changing in the resource handler, described rm-cell carries out corresponding renewal to the parameter of corresponding node in the described formation.
Adopt method of the present invention; avoid each resource to divide timing to calculate the load of whole system; and protection single resource processor load is too high when can not reach the capacity bottleneck in system causes affecting quality of service; after system reaches the certain load rank; use the localised load apportionment mode, guarantee that the rm-cell load can be not overweight.Compared to the prior art scheme based on overall load sharing or instant computing/report load to distribute; the present invention can be in resource handler the reasonable distribution resource; the processing power of raising system, and avoided because the whole system mis-behave that the resource handler fault that drive software can't monitor causes.
Description of drawings
Fig. 1 is the structural representation of repeating query resource allocation system in the communication system of the present invention;
Fig. 2 is the structural representation of global resource formation of the present invention;
Fig. 3 is the process flow diagram of repeating query resource allocation methods in the communication system of the present invention.
Embodiment
Among the present invention, correspond respectively to the formation of the resource handler that links to each other with rm-cell by setting up each node, rm-cell is that business is carried out resource and divided timing, when satisfying the resource handler of resource allocation condition along the sequential search to of formation, be the traffic assignments resource at this resource handler.Compare with the mode of calculating all resource handler loads in the prior art, only need calculating section resource handler load to get final product, saved resource and distributed the time, improve the processing power of system.
As shown in Figure 1, the repeating query resource allocation system comprises among the present invention: rm-cell 101, internal system grid bus 102, a plurality of resource handler 103.Rm-cell 101 and a plurality of resource handler 103 carry out information interaction by internal system grid bus 102.
The different business that the rm-cell system-oriented is supported, the resource in the management system, current all the available resources processor information of saved system, the resource allocation request when setting up of managing business.
The a plurality of process instances of operation are finished the business processing in the communication system on the resource handler, and its load is counted positive correlation with occupied process instance, and the number of resource handler can increase with the system business capacity configuration in the system.
Rm-cell 101 comprises formation maintenance module and resource distribution module, and resource handler 103 comprises load monitoring module 104;
Load monitoring module 104 is used for the load carrying parameter of periodic monitor resource handler and reports rm-cell;
The formation maintenance module, be used for receiving the load carrying parameter that the load monitoring module reports, and safeguard a formation, each node corresponds respectively to the resource handler that links to each other with rm-cell in the formation, and records the load carrying parameter of respective resources processor in each node; Also be used for after the rm-cell distribution services or after professional the release, load carrying amount and when taking the process instance number and changing in the resource handler, rm-cell carries out corresponding renewal to the parameter of corresponding node in the formation.
Resource distribution module divides timing carrying out resource for business, and the resource handler of current location begins from formation, when satisfying the resource handler of resource allocation condition along the sequential search to of formation, is the traffic assignments resource at this resource handler; Also be used for all resource handlers of traversal formation, when not finding the resource handler that satisfies distributive condition, begin the resource handler of M available free example, to select the minimum resource handler of load as the current location resource handler along queue sequence from the resource handler of current location, and be the traffic assignments resource at this resource handler, the value of M is by default.
As shown in Figure 2, rm-cell is safeguarded a resource management formation among the present invention, each node corresponds respectively to the resource handler (total N resource handler of example among the figure) that is connected with rm-cell in the formation, except comprising the sign of resource handler, also comprise load carrying amount (such as CPU usage) on this resource handler and take the instance number of process in each node.During system initialization, rm-cell is set up this formation by the data that the load monitoring module on the resident resource processor reports.In system's operational process, the information of resource handler in the formation of rm-cell real-time update, for example, existing resource handler occurs leading normal and rm-cell when disconnecting, and rm-cell is deleted its corresponding node from formation; New resource handler adds fashionable, and rm-cell increases the new node corresponding with it in formation; After the rm-cell success distribution services or during professional release, load carrying amount (such as CPU usage) and when taking the process instance number and changing in the resource handler, the parameter of rm-cell after to renewal carried out corresponding renewal.
As shown in Figure 3, the resource repeating query distribution method of rm-cell may further comprise the steps among the present invention:
Said method also comprises: be provided with localised load apportionment mode sign and threshold value N (N is the integer more than or equal to 1, and N is arranged according to power system capacity by system) in the rm-cell.During system initialization, the value that this localised load apportionment mode sign is set is 0.Rm-cell is in resource allocation process, and after the resource of a localised load apportionment mode of use was distributed, the value that this localised load apportionment mode is identified added 1, and records the resource handler sign that this resource is distributed.Rm-cell is after the resource allocation request that at every turn receives new business, judge that this localised load apportionment mode ident value is greater than 0 and during less than N, then the resource handler with the rm-cell record identifies corresponding resource handler as the current location resource handler, be the traffic assignments resource at this resource handler, and the value of this localised load apportionment mode sign is added 1; Judge when this localised load apportionment mode ident value equals N, the resource handler of rm-cell record is identified corresponding resource handler as the current location resource handler, be the traffic assignments resource at this resource handler, and the value of this localised load apportionment mode sign is set to 0; Judge that this localised load apportionment mode ident value equals at 0 o'clock, begins to process from step 302 according to flow process shown in Figure 3.Use as the typical case, the value of N gets 1.
Suppose that the professional model of setting up is discrete situation, namely each business is discrete the distribution at time dimension, and each professional duration is uniform, it is N that whole system has resource allocation processor number, professional initiation of unit interval number of times is X, and the computational load that rm-cell need expend when each business was set up is O, when then using resource allocation methods of the prior art, the computational load of rm-cell was N * O when each business was set up, and then computational load is N * X * O in the unit interval.Use resource allocation methods of the present invention, in the normal load situation, the unit interval computational load is X * O; When increasing along with system loading, when the part resource handler does not satisfy load door limit and requires, it is X * O that rm-cell is set up a professional minimum computational load, maximum computational load N * X * O, and then unit interval average calculating operation load is (N * X * O)/2; When the load of all resource handlers did not satisfy the load door limit and requires, rm-cell unit interval computational load average out to [(N+M) * X * O]/2 were because M, is approximately equal to (N * X * O)/2 much smaller than N.
When resource handler break down and rm-cell when not detecting mode 1 and mode 2 all can cause the whole system mis-behave, but because the load of realization selection strategy of the present invention and single resource handler is irrelevant, so the selected probability of the resource handler of fault is the same with other normal processor, only can bring slight impact (being inversely proportional to the number of the resource handler of system configuration) to system performance.
Contrast as can be known, the present invention in system's normal load situation, the load of the load of rm-cell mode 1 in the existing prior art, and more reliable than mode 2; Even if in the situation that system loading is very high, realization of the present invention, the computational load of rm-cell also reduces 1/2 than mode 1, and can carry out dilatation (the rm-cell load increases with the number of resource handler is linear) by the method that increases the resource handler number, and mode 1 can't realize.
The present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, and these change and be out of shape the protection domain that all should belong to the appended claim of the present invention accordingly.
Claims (8)
1. a repeating query resource allocation methods is characterized in that,
Rm-cell is safeguarded a formation, and each node corresponds respectively to the resource handler that links to each other with described rm-cell in the formation, and records the load carrying parameter of respective resources processor in each node;
Described rm-cell is that business is carried out resource and divided timing, the resource handler of current location begins from described formation, when satisfying the resource handler of resource allocation condition along the sequential search to of described formation, be the traffic assignments resource at this resource handler;
Wherein, described rm-cell travels through all resource handlers in the described formation, when not finding the resource handler that satisfies resource allocation condition, making the resource of localised load apportionment mode distributes namely: begin to select the minimum resource handler of load as the current location resource handler the resource handler of M available free example along described queue sequence from the resource handler of current location, and be the traffic assignments resource at this resource handler, the value of M is by default.
2. the method for claim 1 is characterized in that,
Be provided with localised load apportionment mode sign and threshold value N in the rm-cell, and when system initialization, the value that this localised load apportionment mode sign is set is 0;
Rm-cell is in resource allocation process, and after the resource of a localised load apportionment mode of use was distributed, the value that this localised load apportionment mode is identified added 1, and records the resource handler sign that this resource is distributed;
Rm-cell is after the resource allocation request that at every turn receives new business, judge that this localised load apportionment mode ident value is greater than 0 and during less than N, then the resource handler with the rm-cell record identifies corresponding resource handler as the current location resource handler, be the traffic assignments resource at this resource handler, and the value of this localised load apportionment mode sign is added 1; Judge when this localised load apportionment mode ident value equals N, the resource handler of rm-cell record is identified corresponding resource handler as the current location resource handler, be the traffic assignments resource at this resource handler, and the value of this localised load apportionment mode sign is set to 0; Judge that this localised load apportionment mode ident value equals at 0 o'clock, the resource handler of current location begins from described formation, when satisfying the resource handler of resource allocation condition along the sequential search to of described formation, be the traffic assignments resource at this resource handler;
Wherein, N is the integer more than or equal to 1, and N is arranged according to power system capacity by rm-cell.
3. method as claimed in claim 1 or 2 is characterized in that,
Described load carrying parameter comprises the load carrying amount and takies the instance number of process; The value that the described resource handler that satisfies resource allocation condition refers to its load carrying amount is less than the load thresholding, and the instance number that takies process is less than the example thresholding, and described load thresholding and described example thresholding are definite by system.
4. method as claimed in claim 3 is characterized in that,
In system's operational process, described rm-cell is safeguarded described formation, after the rm-cell distribution services or after professional the release, load carrying amount and when taking the process instance number and changing in the resource handler, described rm-cell carries out corresponding renewal to the parameter of corresponding node in the described formation.
5. a repeating query resource allocation system comprises rm-cell and a plurality of resource handler, it is characterized in that,
Described rm-cell comprises formation maintenance module and resource distribution module, and described resource handler comprises the load monitoring module;
Described load monitoring module is used for monitoring the load carrying parameter of described resource handler and reporting described rm-cell;
Described formation maintenance module is used for safeguarding a formation that each node corresponds respectively to the resource handler that links to each other with described rm-cell in the formation, and records the load carrying parameter of respective resources processor in each node;
Described resource distribution module, divide timing carrying out resource for business, the resource handler of current location begins from described formation, when satisfying the resource handler of resource allocation condition along the sequential search to of described formation, is the traffic assignments resource at this resource handler;
Wherein, described resource distribution module, also be used for traveling through all resource handlers of described formation, when not finding the resource handler that satisfies resource allocation condition, making the resource of localised load apportionment mode distributes namely: begin to select the minimum resource handler of load as the current location resource handler the resource handler of M available free example along described queue sequence from the resource handler of current location, and be the traffic assignments resource at this resource handler, the value of M is by default.
6. system as claimed in claim 5 is characterized in that,
Described resource distribution module also is used for being provided with localised load apportionment mode sign and threshold value N, and when system initialization, the value that this localised load apportionment mode sign is set is 0; Also be used at rm-cell at resource allocation process, use the resource of a localised load apportionment mode to distribute after, the value of this localised load apportionment mode sign is added 1, and records the resource handler sign that this resource is distributed; Also be used for after the resource allocation request that at every turn receives new business, judge that this localised load apportionment mode ident value is greater than 0 and during less than N, then the resource handler with the rm-cell record identifies corresponding resource handler as the current location resource handler, be the traffic assignments resource at this resource handler, and the value of this localised load apportionment mode sign is added 1; Judge when this localised load apportionment mode ident value equals N, the resource handler of rm-cell record is identified corresponding resource handler as the current location resource handler, be the traffic assignments resource at this resource handler, and the value of this localised load apportionment mode sign is set to 0; Judge that this localised load apportionment mode ident value equals at 0 o'clock, the resource handler of current location begins from described formation, when satisfying the resource handler of resource allocation condition along the sequential search to of described formation, be the traffic assignments resource at this resource handler; Wherein, N is the integer more than or equal to 1, and N is arranged according to power system capacity by rm-cell.
7. such as claim 5 or 6 described systems, it is characterized in that,
Described load carrying parameter comprises the load carrying amount and takies the instance number of process; The value that the described resource handler that satisfies resource allocation condition refers to its load carrying amount is less than the load thresholding, and the instance number that takies process is less than the example thresholding, and described load thresholding and described example thresholding are definite by system.
8. system as claimed in claim 7 is characterized in that,
Described formation maintenance module, also be used for after the rm-cell distribution services or after professional the release, load carrying amount and when taking the process instance number and changing in the resource handler, described rm-cell carries out corresponding renewal to the parameter of corresponding node in the described formation.
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| CN1509009A (en) * | 2002-12-19 | 2004-06-30 | 华为技术有限公司 | Business resource distribution method |
| CN1538317A (en) * | 2003-10-24 | 2004-10-20 | 中兴通讯股份有限公司 | Method of multibusiness platform multikind resources comprehensive alignment |
| CN1988684A (en) * | 2006-12-15 | 2007-06-27 | 华为技术有限公司 | Network process managing method and device |
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| US6128642A (en) * | 1997-07-22 | 2000-10-03 | At&T Corporation | Load balancing based on queue length, in a network of processor stations |
| CN1509009A (en) * | 2002-12-19 | 2004-06-30 | 华为技术有限公司 | Business resource distribution method |
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