CN105573840B - The event-handling method and device of work flow operation phase - Google Patents
The event-handling method and device of work flow operation phase Download PDFInfo
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- CN105573840B CN105573840B CN201510900413.XA CN201510900413A CN105573840B CN 105573840 B CN105573840 B CN 105573840B CN 201510900413 A CN201510900413 A CN 201510900413A CN 105573840 B CN105573840 B CN 105573840B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
- G06F9/5038—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals considering the execution order of a plurality of tasks, e.g. taking priority or time dependency constraints into consideration
Abstract
The present invention proposes the event-handling method and device of a kind of work flow operation phase, the event-handling method of the work flow operation phase includes: case distribution device according to event reading distribution algorithms, event is obtained from event pond, and give the case distribution to different event handlers, the execution of each event handler is independent mutually；Event handler is according to event queue sort algorithm, the event that case distribution device is distributed is stored in event queue, and event is chosen in event queue and is handled by the thread in thread pool, wherein the number of threads in thread pool is adjusted according to thread pool self-turning algorithm.This method can be realized efficient, the stable processing to workflow event, effective balance quality and the utilization of resources.
Description
Technical field
The present invention relates to technical field of data processing more particularly to a kind of event-handling methods and dress of work flow operation phase
It sets.
Background technique
Workflow (WorkFlow) is the computation model of workflow, i.e., by the work in workflow, how front and back is organized
Logic and rule together is indicated in a computer and to the calculation that plays tricks in fact with appropriate model.
Workflow flows through journey according to programmed operation flow automatic trigger task, in workflow logic nets operation flow
In, the business event for largely needing software systems to complete can be generated, such as send mail, bank transfer, data filing.These
How rationally business event type is different, priority is different, calculation processing time-consuming also different, efficiently handle these business
Event is that workflow high efficiency drive operation flow flows through the major issue faced in journey.
Traditional scheme is uniformly placed on these events in one message pool, is then responsible for being distributed to thread by dispatch thread
Per thread or thread in pond freely go in message pool to get event execution.Traditional scheme can exist as follows can not be to workflow
Event carries out efficient, stable processing, specific manifestation are as follows: not can guarantee the event of high priority by priority processing；It can not be effective
The anomalous effects of different event are isolated；The low event of priority cannot be handled for a long time causes event largely to block.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, this method can an object of the present invention is to provide the event-handling method of work flow operation phase a kind of
To realize efficient, the stable processing to workflow event, effective balance quality and the utilization of resources.
It is another object of the present invention to the event processing apparatus for proposing a kind of work flow operation phase.
In order to achieve the above objectives, the event-handling method for the work flow operation phase that first aspect present invention embodiment proposes,
Include: case distribution device according to event reading distribution algorithms, event is obtained from event pond, and by the case distribution to difference
Event handler, the execution of each event handler is independent mutually；Event handler is according to event queue sort algorithm, by thing
The event of part distributor distribution is stored in event queue, and is chosen event in event queue and carried out by the thread in thread pool
Processing, wherein the number of threads in thread pool is adjusted according to thread pool self-turning algorithm.
The event-handling method for the work flow operation phase that first aspect present invention embodiment proposes, by giving case distribution
Different event handlers, the execution of event handler is independent mutually, the event of can isolate be abnormal after coverage, mention
The high stability of event handling.By the way that event is stored and chosen according to event queue sort algorithm, height can both ensure that
The event of priority is quickly handled, and has also taken into account the response time of low priority event, and the event of different priorities obtains rationally
Dispatch deal.It, can be in safeguard work stream thing by adjusting the number of thread in thread pool according to thread pool self-turning algorithm
Under the premise of part obtains efficient process, the utilization of resource is also balanced.To sum up, the above-mentioned event handling side to the work flow operation phase
Method may be implemented efficient, the stable processing to workflow event, effectively balance the utilization of performance and resource.
In order to achieve the above objectives, the event processing apparatus for the work flow operation phase that second aspect of the present invention embodiment proposes,
Include: case distribution device, for reading distribution algorithms according to event, obtain event from event pond, and by the case distribution
To different event handlers, the execution of each event handler is independent mutually；Event handler, for being arranged according to event queue
The event that case distribution device is distributed is stored in event queue by sequence algorithm, and chooses event by thread pool in event queue
In thread handled, wherein according to thread pool self-turning algorithm adjust thread pool in number of threads.
The event processing apparatus for the work flow operation phase that second aspect of the present invention embodiment proposes, by giving case distribution
Different event handlers, the execution of event handler is independent mutually, the event of can isolate be abnormal after coverage, mention
The high stability of event handling.By the way that event is stored and chosen according to event queue sort algorithm, height can both ensure that
The event of priority is quickly handled, and has also taken into account the response time of low priority event, and the event of different priorities obtains rationally
Dispatch deal.It, can be in safeguard work stream thing by adjusting the number of thread in thread pool according to thread pool self-turning algorithm
Under the premise of part obtains efficient process, the utilization of resource is also balanced.To sum up, the above-mentioned event handling to the work flow operation phase fills
It sets, efficient, the stable processing to workflow event may be implemented, effectively balance the utilization of performance and resource.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow diagram of the event-handling method for the work flow operation phase that one embodiment of the invention proposes；
Fig. 2 is the schematic diagram of case distribution processing system in the embodiment of the present invention；
Fig. 3 is the flow diagram that event reads distribution in the embodiment of the present invention；
Fig. 4 is the flow diagram of event ordering and selection in the embodiment of the present invention；
Fig. 5 is the flow diagram in self-tuned threading pond in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the event processing apparatus for the work flow operation phase that another embodiment of the present invention proposes；
Fig. 7 is the structural schematic diagram of the event processing apparatus for the work flow operation phase that another embodiment of the present invention proposes.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar module or module with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.On the contrary, this
The embodiment of invention includes all changes fallen within the scope of the spiritual and intension of attached claims, modification and is equal
Object.
Fig. 1 is the flow diagram of the event-handling method for the work flow operation phase that one embodiment of the invention proposes, the party
Method includes:
S11: case distribution device reads distribution algorithms according to event, event is obtained from event pond, and the event is divided
Different event handlers is issued, the execution of each event handler is independent mutually.
As shown in Fig. 2, the corresponding case distribution processing system of the present embodiment includes: event 21, event pond 22, case distribution
24 4 objects of device 23 and event handler and event read distribution algorithms 25, event queue sort algorithm 26 and thread pool certainly
27 3 algorithms of adjustment algorithm.
Event is the business activity for needing software systems to complete of generation during workflow logic nets operation flow.Event master
To include attribute as shown in Table 1:
Table 1
| ID | CreateTime | Priority | State | Type | AppType | Locker |
Wherein, each meaning of parameters is as follows:
ID: the mark of event；
CreateTime: the creation time of event；
Priority: the priority of event, numeric type, bigger priority are higher；
State: state, be divided into it is to be processed, handling and the three kinds of states that are disposed；
Type: type is assigned to different event handlers according to the difference of type；
AppType: event handling type calls different processing routines according to the type；
Locker: event lock, case distribution device need the event mark for obtaining oneself after acquisition event in event pond
Note is lockked, and is avoided other distributors from taking away and is repeated.
Operation flow, which flows through all events generated in journey all, can be placed in waiting scheduling execution, event pond in event pond
The database table that can be understood as backstage, stores all events.
Case distribution device reads distribution algorithms according to event and obtains event from event pond, and is distributed to event handler.
In some embodiments, referring to Fig. 3, distribution algorithms are read according to event, event are obtained from event pond, and will be described
Case distribution includes: to the process of different event handlers
S31: the state that predetermined number is obtained from event pond is the event of armed state.
The state of event is to be handled, is handling and processed three kinds of states, only obtains the thing of armed state herein
Part.
Predetermined number is, for example, 20.
For example, according to the generation time of event, the in chronological sequence event of 20 armed statees of sequential selection.
S32: the state for the event that will acquire is updated to just in processing status.
S33: judging whether to be updated successfully, if so, executing S34, otherwise, executes S35.
Since the event in event pond can be by multiple case distribution device distribution processors, so it is more to have an event
The case where a distributor while reading process.In order to avoid event reprocessing, can compare the event number that is obtained in S31 with
Whether the event number updated in S32 is consistent, if unanimously, showing to be updated successfully, otherwise, updates failure.
S34: if be updated successfully, the event that will acquire is distributed to the event handler of corresponding types according to event type.
For example, event type is bank transfer, then by case distribution to the event handler of bank transfer.
In the present embodiment, event handler is multiple, a type of event of each event handler processing, different event
The event execution of processor is independent of each other, and reduces the coverage of event handling exception, improves the stability of event handling.
S35: if updating failure, preset time is waited.Later, S31 is repeated by its subsequent step.
The preset time of waiting is, for example, 1 second.
Event is obtained from event pond again again by waiting for a period of time, it is possible to reduce probability of failure.
S12: event handler is stored in event team according to event queue sort algorithm, by the event that case distribution device is distributed
In column, and event is chosen in event queue and is handled by the thread in thread pool, wherein thread pool is according to thread pool self-regulated
Number of threads in whole algorithm adjustment thread pool.
Event handler is the processing unit of event, and all events finally can all give event handler processing.It is different
Event handler for handling different types of event, as shown in Fig. 2, for example, event handler includes: automatic event processing
Device, new task notification event processor and bank transfer processor, be respectively used to processing automatic event, new task notification event and
Bank transfer event.
Event handler includes two event queue, event handling thread pool (referred to as thread pool) objects.All distributions
It can be all stored in the event queue of event handler to the event of event handler, while according to event queue sort algorithm pair
Event queue is ranked up.Thread in thread pool is responsible for obtaining event from event queue or by queue management device by event
It is distributed to thread, thread executes the service logic of event after getting event.Thread pool can be according to thread pool self-turning algorithm
The number of thread in adjust automatically thread pool, optimization computing resource configuration.
In some embodiments, referring to fig. 4, according to event queue sort algorithm, the event that case distribution device is distributed is stored
In event queue, and event is chosen by the process that the thread in thread pool is handled in event queue and includes:
S41: according to first in first out, the event that case distribution device is distributed sequentially is stored in event queue.
After event in event pond is distributed to event handler by the reading of case distribution device, event handler can put event
Event queue to oneself is medium to be processed.The ordering rule of queue is first in first out, that is, the more early arrangement come is more forward,
Come it is more late, row more rearward.
S42: traversal whole event queue, the event for choosing highest priority are handled by the thread in thread pool.
Wherein, an attribute of event is priority, and the priority of each event can be determined according to the attribute.
S43: judge choose event whether be first, the head event of event queue, if so, repeat S41 and its
Otherwise subsequent step executes S44.
S44: the priority of first event in head of event queue is added 1, later, repeats S41 and its subsequent step
Suddenly.
It is handled by choosing event according to priority, it is ensured that the event of high priority is comparatively fast handled.Separately
Outside, when the event of selection is not first event in head, the priority of first event in head is added 1, waiting can be improved
The priority of time long event, therefore event wait long time of low priority will not be allowed, thus different priorities
Event obtains reasonable dispatch deal.
In some embodiments, referring to Fig. 5, the process of the number of threads in thread pool is adjusted according to thread pool self-turning algorithm
Include:
S51: the mean number of event in event queue in preset time period is monitored.
Wherein, monitoring time section and period can be arranged, so as to obtain multiple events within the period of monitoring
The number of event in queue, then by after the progress average calculating operation of multiple numbers, obtain mean number.S52: judge the mean number
Whether it is greater than preset maximum critical value, if so, executing S53, otherwise, executes S54.
Maximum critical value and subsequent lowest critical value can be preset, by comparing mean number and maximum critical value or
Lowest critical value, available judging result.
S53: thread in thread pool is increased by the first predetermined number.Later, S51 and its subsequent step are repeated.
Thread in thread pool is responsible for the processing of specific service logic, and number of threads is more, and processing event is faster, line
Journey number is fewer, and processing event is slower.
Therefore, when mean number is larger, the number of thread in thread pool can be increased, to improve event handling speed.
First predetermined number and subsequent second predetermined number can be chosen with experience etc. according to the actual situation, and first is pre-
If number and the second predetermined number can be identical or different.
S54: judging whether the mean number is less than preset lowest critical value, if so, executing S55, otherwise, repetition is held
Row S51 and its subsequent step.
S55: thread in thread pool is reduced into the second predetermined number.Later, S51 and its subsequent step are repeated.
When mean number is smaller, illustrates that event number to be processed is less, can reduce thread in thread pool at this time
Number, to avoid thread waste.
By according to event to be processed in event queue number, voluntarily increase and decrease event handler execution thread, thus
Reasonable distribution computing resource improves the efficiency of event handling.
In the present embodiment, by giving case distribution to different event handlers, the execution of event handler is independent mutually,
The event of can isolate be abnormal after coverage, improve the stability of event handling.By being sorted according to event queue
Algorithm storage and selection event, can both ensure that the event of high priority is quickly handled, and had also taken into account low priority event
Response time, the event of different priorities obtains reasonable dispatch deal.By adjusting line according to thread pool self-turning algorithm
The number of thread in Cheng Chi can also balance the utilization of resource under the premise of safeguard work stream event obtains efficient process.
To sum up, efficient, the stable processing to workflow event may be implemented in the above-mentioned event-handling method to the work flow operation phase,
Effectively balance the utilization of performance and resource.
Fig. 6 is the structural schematic diagram of the event processing apparatus for the work flow operation phase that another embodiment of the present invention proposes, should
Device 60 includes: case distribution device 61 and event handler 62.
Case distribution device 61 obtains event for reading distribution algorithms according to event from event pond, and by the event
It is distributed to different event handlers, the execution of each event handler is independent mutually.
Optionally, referring to Fig. 7, the case distribution device 61 includes:
First unit 611, the state for obtaining predetermined number from event pond are the event of armed state；
Second unit 612, the state of the event for will acquire are updated to just in processing status；
Third unit 613 is updated successfully for judging whether；
4th unit 614, the event for will acquire when being updated successfully are distributed to corresponding types according to event type
Event handler.
Referring to Fig. 7, the case distribution device 61 further include:
5th unit 615, for when updating failure, after waiting preset time, retriggered to be held since first unit
Row.
Event handler 62, for according to event queue sort algorithm, the event that case distribution device is distributed to be stored in thing
In part queue, and event is chosen in event queue and is handled by the thread in thread pool, wherein according to thread pool self-adjusting
Algorithm adjusts the number of threads in thread pool.
Optionally, referring to Fig. 7, the event handler 62 includes:
6th unit 621, for according to first in first out, the event that case distribution device is distributed sequentially to be stored in event
In queue；
7th unit 622 chooses the event of highest priority by the thread in thread pool for traversing whole event queue
It is handled；
8th unit 623, for judge choose event whether be event queue first, head event；
9th unit 624, when not being first event in head of event queue for the event in selection, by event queue
The priority of first event in head add 1.
Referring to Fig. 7, the event handler 62 further include:
Tenth unit 625 is first, the head event of event queue for the event in selection, alternatively, by the head
After the priority of first event in portion adds 1, repeated trigger is executed since Unit the 6th.
Referring to Fig. 7, the event handler 62 includes:
11st unit 626, for monitoring the mean number of event in event queue in preset time period；
12nd unit 627 is used for when the mean number is greater than preset maximum critical value, by thread in thread pool
Increase by the first predetermined number；
13rd unit 628 is used for when the mean number is less than preset lowest critical value, by thread in thread pool
Reduce the second predetermined number.
The concrete function of above-mentioned module may refer to the associated description in embodiment of the method, and details are not described herein.
In the present embodiment, by giving case distribution to different event handlers, the execution of event handler is independent mutually,
The event of can isolate be abnormal after coverage, improve the stability of event handling.By being sorted according to event queue
Algorithm storage and selection event, can both ensure that the event of high priority is quickly handled, and had also taken into account low priority event
Response time, the event of different priorities obtains reasonable dispatch deal.By adjusting line according to thread pool self-turning algorithm
The number of thread in Cheng Chi can also balance the utilization of resource under the premise of safeguard work stream event obtains efficient process.
To sum up, efficient, the stable processing to workflow event may be implemented in the above-mentioned event processing apparatus to the work flow operation phase,
Effectively balance the utilization of performance and resource.
It should be noted that in the description of the present invention, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
Refer at least two.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (8)
1. a kind of event-handling method of work flow operation phase characterized by comprising
Case distribution device reads distribution algorithms according to event, event is obtained from event pond, and by the case distribution to difference
Event handler, the execution of each event handler is independent mutually；
The event that case distribution device is distributed is stored in event queue by event handler according to event queue sort algorithm, and
It chooses event in event queue to be handled by the thread in thread pool, wherein adjust line according to thread pool self-turning algorithm
Number of threads in Cheng Chi；
Wherein, described that the event that case distribution device is distributed is stored in event queue according to event queue sort algorithm, and
It chooses event in event queue to be handled by the thread in thread pool, comprising: according to first in first out, by case distribution device
The event of distribution is sequentially stored in event queue；Whole event queue is traversed, chooses the event of highest priority by thread pool
In thread handled；Judge choose event whether be event queue first, head event；If it is not, by event
The priority of first event in head of queue adds 1.
2. the method according to claim 1, wherein described read distribution algorithms according to event, from event pond
Acquisition event, and give the case distribution to different event handlers, comprising:
The state that predetermined number is obtained from event pond is the event of armed state；
The state for the event that will acquire is updated to just in processing status；
Judge whether to be updated successfully；
If be updated successfully, the event that will acquire is distributed to the event handler of corresponding types according to event type.
3. according to the method described in claim 2, it is characterized by further comprising:
If updating failure, after waiting preset time, the event of the armed state of predetermined number is obtained from event pond again.
4. the method according to claim 1, wherein further include:
If the event chosen is first, the head event of event queue, alternatively, by the preferential of first, head event
After grade plus 1, repeats above-mentioned sequence and choose process.
5. the method according to claim 1, wherein described adjust in thread pool according to thread pool self-turning algorithm
Number of threads, comprising:
Monitor the mean number of event in event queue in preset time period；
If the mean number is greater than preset maximum critical value, thread in thread pool is increased by the first predetermined number；
If the mean number is less than preset lowest critical value, thread in thread pool is reduced into the second predetermined number.
6. a kind of event processing apparatus of work flow operation phase characterized by comprising
Case distribution device obtains event, and the case distribution is given for reading distribution algorithms according to event from event pond
Different event handlers, the execution of each event handler are independent mutually；
Event handler, for according to event queue sort algorithm, the event that case distribution device is distributed to be stored in event queue
In, and choose event in event queue and handled by the thread in thread pool, wherein according to thread pool self-turning algorithm tune
Number of threads in whole thread pool；
Wherein, the event handler includes: Unit the 6th, for according to first in first out, case distribution device to be distributed
Event is sequentially stored in event queue；Unit the 7th, for traversing whole event queue, choose the event of highest priority by
Thread in thread pool is handled；Unit the 8th, for judge choose event whether be event queue first, head
Event；Unit the 9th, when not being first event in head of event queue for the event in selection, by the head of event queue
The priority of first event adds 1.
7. device according to claim 6, which is characterized in that the case distribution device includes:
First unit, the state for obtaining predetermined number from event pond are the event of armed state；
Second unit, the state of the event for will acquire are updated to just in processing status；
Third unit is updated successfully for judging whether；
Unit the 4th, the event for will acquire when being updated successfully are distributed at the event of corresponding types according to event type
Manage device.
8. device according to claim 6, which is characterized in that the event handler includes:
Unit the 11st, for monitoring the mean number of event in event queue in preset time period；
Unit the 12nd, for when the mean number is greater than preset maximum critical value, thread in thread pool to be increased by the
One predetermined number；
Unit the 13rd, for when the mean number is less than preset lowest critical value, thread in thread pool to be reduced the
Two predetermined numbers.
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| CN103699599A (en) * | 2013-12-13 | 2014-04-02 | 华中科技大学 | Message reliable processing guarantee method of real-time flow calculating frame based on Storm |
| CN103810048A (en) * | 2014-03-11 | 2014-05-21 | 国家电网公司 | Automatic adjusting method and device for thread number aiming to realizing optimization of resource utilization |
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| CN102004665A (en) * | 2010-11-09 | 2011-04-06 | 北京神州泰岳软件股份有限公司 | Task concurrent processing method in workflow system |
| CN102591721A (en) * | 2011-12-30 | 2012-07-18 | 北京新媒传信科技有限公司 | Method and system for distributing thread execution task |
| CN103699599A (en) * | 2013-12-13 | 2014-04-02 | 华中科技大学 | Message reliable processing guarantee method of real-time flow calculating frame based on Storm |
| CN103810048A (en) * | 2014-03-11 | 2014-05-21 | 国家电网公司 | Automatic adjusting method and device for thread number aiming to realizing optimization of resource utilization |
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