CN109858817A - A kind of Workflow Management System and method - Google Patents
A kind of Workflow Management System and method Download PDFInfo
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- CN109858817A CN109858817A CN201910108639.4A CN201910108639A CN109858817A CN 109858817 A CN109858817 A CN 109858817A CN 201910108639 A CN201910108639 A CN 201910108639A CN 109858817 A CN109858817 A CN 109858817A
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Abstract
This application provides a kind of Workflow Management System and method, which includes: access interface, background server, client and task engine, and client includes at least workflow engine and distributed file system.Wherein, the second workflow that background server receives the first workflow that access interface is sent and task engine is sent, it changes the first workflow and the second flow of work into target network formatted file, and target network formatted file is sent in the predetermined directory of distributed file system and is stored.Workflow engine obtains target network formatted file as pending task.According to the pending task of preset script execution, the second work for generating the implementing result for characterizing pending task flow to background server for task engine.As it can be seen that the present embodiment establishes the connection between task engine and background server, background server can carry out task distribution to the first workflow and the second workflow, solve the problems, such as task engine single-point.
Description
Technical field
This application involves technical field of data processing, and in particular to a kind of Workflow Management System and method.
Background technique
Currently, big data platform wants timing operation number with ten thousand tasks daily, each task is divided at least one work
Stream, and there are dependences between each task and workflow, it is therefore desirable to a Workflow Management System is set, periodically to manage
Manage workflow operation.
Inventors have found that task engine is the equipment for the task that independently executes, i.e. task engine in existing Workflow Management System
There are problems that single-point, once some task engine is broken down, then task of the load in the task engine will be unable to normally execute.
Therefore, how a kind of Workflow Management System is provided, can support task engine load balancing, solves task engine single-point
Problem is those skilled in the art's big technical problem urgently to be resolved.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of Workflow Management System and method, it can support that task engine is negative
Equilibrium is carried, solves the problems, such as task engine single-point.
To achieve the above object, the embodiment of the present application provides the following technical solutions:
A kind of Workflow Management System, comprising: access interface, background server, client and task engine, the client
End includes at least workflow engine and distributed file system,
The access interface is used for, and the first workflow is sent to the background server, first workflow is based on
Preset workflow definition language generates；
The background server is used for, and receives the first workflow that the access interface is sent and task engine is sent the
Two workflows change first workflow and second flow of work into target network formatted file, and by the mesh
Mark network format file, which is sent in the predetermined directory of the distributed file system, to be stored；
The workflow engine is used for, and the target network formatted file is obtained from the distributed file system, is made
For pending task, the pending task is sent at least one described task engine and is connected；
The task engine is used for, and according to pending task described in preset script execution, generates characterization described pending
Second work of the implementing result of business flow to the background server.
Optionally, the client further includes remote alarm interface,
The remote alarm interface is used for, when the workflow engine detects that the pending task is connect with the task engine
When failing or detecting that the task engine executes the pending mission failure, alarm request is sent to preset network address.
Optionally, the workflow engine is connected with multiple task engines,
The workflow engine determines that the load occupation rate is the smallest according to the load occupation rate of multiple task engines
The task engine is goal task machine, and the pending task is sent to the goal task machine.
Optionally, the preset workflow definition language is YAML language.
Optionally, the access interface includes: web-page interface and Software Development Kit interface,
The web-page interface and Software Development Kit interface are used for, and obtain the status information of first workflow,
And operational order is exported, the operational order includes: enabled instruction, pause instruction, halt instruction and re-executes instruction.
Optionally, the access interface further includes GitLab interface,
The GitLab interface is used for, and carries out predefined grammatical and semantic inspection to first workflow, when described the
When one workflow meets the predefined grammatical and semantic rule, sends first work and flow to the background server, institute
It states the first workflow and is based on YAML language generation.
Optionally, the workflow engine obtains the load number of the task engine in preset time, determines described negative
The inverse for carrying quantity is the load occupation rate.
A kind of Workflow management method, is applied to above-mentioned Workflow Management System, and the Workflow management method includes:
Receive the first workflow that the access interface is sent and the second workflow that the task engine is sent, described the
One workflow and second workflow are generated based on preset workflow definition language；
Change first workflow and second flow of work into target network formatted file, and by the target
Network format file is sent in the predetermined directory of the distributed file system and is stored；
The target network formatted file is obtained from the distributed file system, it, will be described as pending task
Pending task is sent at least one task engine；
According to pending task described in preset script execution, the institute for characterizing the implementing result of the pending task is generated
It states the second work and flow to the background server.
Optionally, further includes:
When the workflow engine detects the pending task and the task engine connection failure or detects described
When task engine executes pending mission failure, alarm request is sent to preset network address.
Optionally, further includes:
According to the load occupation rate of multiple task engines, determine that the smallest task engine of load occupation rate is mesh
Task engine is marked, the pending task is sent to the goal task machine.
Based on the above-mentioned technical proposal, this application provides a kind of Workflow Management System and method, the Workflow Management systems
System includes: access interface, background server, client and task engine, and client includes at least workflow engine and distribution
Formula file system.Wherein, access interface is used to the first workflow being sent to background server.Background server is visited for receiving
The first workflow that interface is sent and the second workflow that task engine is sent are asked, by the first workflow and the second flow of work
It changes target network formatted file into, and target network formatted file is sent in the predetermined directory of distributed file system and is carried out
Storage.Workflow engine obtains the target network formatted file from the distributed file system, as pending task,
The pending task is sent at least one task engine to be connected.Task engine is according to pending described in preset script execution
Business, the second work for generating the implementing result for characterizing the pending task flow to background server.As it can be seen that in the present embodiment,
Establish the connection between task engine and background server, background server can to the first workflow that access interface is sent with
And the second workflow that task engine is sent carries out task distribution, solves the problems, such as task engine single-point.Except this, workflow engine is used for
It is connected by SSH agreement at least one task engine, can supports task engine load balancing.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural block diagram of Workflow Management System provided by the embodiments of the present application；
Fig. 2 is the flow chart of Workflow management method provided by the embodiments of the present application；
Fig. 3 is the another flow chart of Workflow management method provided by the embodiments of the present application；
Fig. 4 is the another flow chart of Workflow management method provided by the embodiments of the present application；
Fig. 5 is the signaling process figure of Workflow Management System provided by the embodiments of the present application；
Fig. 6 is the structural schematic diagram of Workflow management device provided by the embodiments of the present application；
Fig. 7 is a kind of hardware structural diagram of server provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Fig. 1 is the structural block diagram of Workflow Management System provided by the embodiments of the present application, Workflow Management shown in the figure
System can be used to implement Workflow management method provided by the embodiments of the present application.Referring to Fig.1, which can be with
It include: access interface 100, background server 200, client 300 and task engine 400.
Wherein, access interface 100 may include web-page interface Web UI, Software Development Kit interface SDK and
GitLab interface.
The web-page interface Web UI and Software Development Kit interface SDK is used to obtain the shape of first workflow
State information, and export operational order, wherein operational order includes: enabled instruction, pause instruction, halt instruction and holds again
Row instruction.
Specifically, present embodiments providing a kind of status information for obtaining first workflow, and export operational order
Concrete mode:
A HTTP API is provided to the web-page interface Web UI and Software Development Kit in background server 200
Interface SDK, then user passes through webpage click " starting ", it can workflow ID is transmitted to background server by API
200。
The GitLab interface is used to carry out predefined grammatical and semantic inspection to first workflow, when described first
When workflow meets the predefined grammatical and semantic rule, sends first work and flow to the background server.Wherein,
First workflow is based on YAML language generation.Predefined grammatical and semantic inspection can be examined for the grammer to preset field
It looks into, such as checks whether name field meets and write rule.
Schematically, it is assumed that the grammatical and semantic rule of predefined name field are as follows: can only include A-Za-z0-9 and lower stroke
Line, then since & does not meet preset grammatical and semantic rule, then determining current when the name in the first workflow is KI&2
The name field clerical error of first workflow.
200 device of background server is the service equipment for obtaining workflow, may be the server of multiple servers composition
Cluster, it is also possible to single server.
Client 300 be it is corresponding with background server 200, setting for the program of local service can be provided for user
It is standby, specifically, in this embodiment, client 300 includes at least workflow engine 301 and distributed file system 302.Its
In, workflow engine 301 from the distributed file system for obtaining the target network formatted file, as pending
The pending task is sent at least one described task engine and is connected by task.The distributed file system 302 is for depositing
The target network formatted file is stored up into predetermined directory.
Task engine 400 is used to generate according to pending task described in preset script execution and characterize the pending task
Implementing result it is described second work flow to the background server.I.e. client 300 is connected to user by SSH and sets in advance
Fixed task engine, task engine generate according to pending task described in preset script execution and characterize holding for the pending task
Second work of row result flow to the background server, and background server can work the first workflow and second
Stream is saved into database.
Based on Workflow Management System shown in FIG. 1, below from the angle of background server to work provided by the present application
Flow management method is introduced.As shown in Fig. 2, being the flow chart of Workflow management method provided by the embodiments of the present application, the party
Method is applied to background server, may include:
S21, the first workflow that the access interface is sent and the second workflow that the task engine is sent are received.
Wherein, first workflow and second workflow are generated based on preset workflow definition language.?
In the present embodiment, preset workflow definition language can be YAML language.Specifically, the YAML language is to directed acyclic graph
The expression of DAG can be expressed as follows:
actions:
-name:step1
type:ssh
host:10.1.2.3,10.1.2.4
command:step1.sh
${YYYYmmdd}
-fork:
-name:step21
type:ssh
command:step21.sh
-name:step22
type:ssh
command:step22.sh
-name:step3
type:ssh
command:step3.sh
S22, first workflow and second flow of work are changed to target network formatted file into, and will be described
Target network formatted file is sent in the predetermined directory of the distributed file system and is stored.
Since background server has preset reading data format, as background server 1 supports A network format, backstage
Server 2 supports B network format therefore in this step, to need the format of workflow being converted into background server to read
The format taken changes first workflow and second flow of work into target network formatted file.
Specifically, present embodiments providing a specific example by YAML language conversion at XML network format, it is assumed that
YAML language is as follows:
default_host:username@10.1.2.3
actions:
-name:step1
type:ssh
command:/data/scripts/step1.sh${YYYYmmdd}
-name:step2
type:ssh
command:/data/scripts/step2.sh${YYYYmmdd}
-name:step3
type:ssh
command:/data/scripts/step3.sh${YYYYmmdd}
It then can be as follows by YAML language translation at Oozie XML network format:
Later, and the target network formatted file after conversion is sent in the predetermined directory of distributed file system and is carried out
Storage.
S23, the target network formatted file is obtained from the distributed file system, it, will as pending task
The pending task is sent at least one task engine.
S24, according to pending task described in preset script execution, generate the implementing result for characterizing the pending task
It is described second work flow to the background server.
Wherein, in the present embodiment, each task engine can preset its pending script, when there is workflow storage
When into client corresponding with the task engine, task engine executes preset script.Also, it is mentioned by script to background server
The second workflow is handed over, so that background server can carry out task distribution to the second workflow.
As it can be seen that establishing the connection between task engine and background server in the present embodiment, background server can be to visit
It asks that the first workflow that interface is sent and the second workflow that task engine is sent carry out task distribution, solves task engine single-point
Problem.
On the basis of the above embodiments, as shown in figure 3, Workflow management method provided in this embodiment, further includes:
S31, when the workflow engine detects the pending task and the task engine connection failure or detects
When the pending task engine executes mission failure, alarm request is sent to preset network address.
Client in Workflow Management System provided in this embodiment is additionally provided with remote alarm interface, and user can be by this
The specified http address of remote alarm interface setting, when workflow engine detects task and task engine connection failure or task engine
When executing mission failure, warning message is sent to preset http address, to realize alarm.
Except this, Workflow management method provided in this embodiment, as shown in Figure 4, further includes:
S41, according to the load occupation rate of multiple task engines, determine the smallest task engine of load occupation rate
For goal task machine, the pending task is sent to the goal task machine.
In Workflow Management System i.e. provided in this embodiment, the workflow engine is connected with multiple task engines,
When the quantity of task is less than the quantity of task engine, different tasks can be preferentially distributed to different task engines.Alternatively, this
Workflow engine can also obtain the load occupation rate of each task engine, and pending task is preferentially distributed to load occupation rate most
Small task engine.
For example, the workflow engine obtains the load number of the task engine in preset time, the load is determined
The inverse of quantity is the load occupation rate.
Task is allocated as it can be seen that the present embodiment is based on load occupation rate, realizes the effect of task engine load balancing.
To sum up, as shown in figure 5, Fig. 5 is a kind of signaling process figure of Workflow Management System provided in an embodiment of the present invention.
Wherein, the first workflow is sent to the background server by the access interface, and first workflow is based on preset work
Make stream definitional language to generate.The background server receives the first workflow that the access interface is sent and task engine is sent
The second workflow, change first workflow and second flow of work into target network formatted file, and by institute
It states target network formatted file and is sent in the predetermined directory of the distributed file system and stored.The workflow engine
The target network formatted file is obtained from the distributed file system, as pending task, by described pending
Business is sent at least one described task engine and is connected.The task engine is raw according to pending task described in preset script execution
The background server is flow at second work for the implementing result for characterizing the pending task.
Except this, the client further includes remote alarm interface, when the workflow engine detect the pending task with
The task engine connection failure or when detecting that the task engine executes pending mission failure sends alarm request to preset
Network address.
The workflow engine is connected with multiple task engines, and the workflow engine is according to multiple task engines
Occupation rate is loaded, determines that the smallest task engine of load occupation rate is goal task machine, the pending task is sent out
It send to the goal task machine, wherein the inverse of the load number is the load occupation rate.
Background server provided by the embodiments of the present application is introduced below, background server described below and above
Reference is corresponded to each other with the Workflow management method of backstage server side description.As shown in fig. 6, being provided for the embodiment of the present application
Background server structural block diagram, referring to Fig. 6, which may include:
Receiving module 61, for receiving the first workflow that the access interface is sent and the task engine is sent the
Two workflows, first workflow and second workflow are generated based on preset workflow definition language；
Conversion module 62, for changing first workflow and second flow of work into target network format text
Part, and the target network formatted file is sent in the predetermined directory of the distributed file system and is stored.
The working principle of the background server refers to the above system embodiment.
Above-described is the software function module framework of background server, on the hardware configuration of server, server
It can realize in the following way Resource Allocation Formula:
Fig. 7 is the hardware block diagram of server provided by the embodiments of the present application, and referring to Fig. 7, which may include:
Processor 111, communication interface 112, memory 113 and communication bus 114；
Wherein processor 111, communication interface 112, memory 113 complete mutual communication by communication bus 114；
Optionally, communication interface 112 can be the interface of communication module, such as the interface of gsm module；
Processor 111, for executing program；
Memory 113, for storing program；
Program may include program code, and said program code includes computer operation instruction.
Processor 111 may be a central processor CPU or specific integrated circuit ASIC (Application
Specific Integrated Circuit), or be arranged to implement the integrated electricity of one or more of the embodiment of the present application
Road.
Memory 113 may include high speed RAM memory, it is also possible to further include nonvolatile memory (non-
Volatile memory), a for example, at least magnetic disk storage.
Wherein, program can be specifically used for:
Receive the first workflow that the access interface is sent and the second workflow that the task engine is sent, described the
One workflow and second workflow are generated based on preset workflow definition language；
Change first workflow and second flow of work into target network formatted file, and by the target
Network format file is sent in the predetermined directory of the distributed file system and is stored；
The target network formatted file is obtained from the distributed file system, it, will be described as pending task
Pending task is sent at least one task engine；
According to pending task described in preset script execution, the institute for characterizing the implementing result of the pending task is generated
It states the second work and flow to the background server.
Optionally, further includes:
When the workflow engine detects the pending task and the task engine connection failure or detects described
When task engine executes pending mission failure, alarm request is sent to preset network address.
Optionally, further includes:
According to the load occupation rate of multiple task engines, determine that the smallest task engine of load occupation rate is mesh
Task engine is marked, the pending task is sent to the goal task machine.
The working principle of the server refers to above method embodiment, herein not repeated description.
In conclusion the Workflow Management System includes: to visit this application provides a kind of Workflow Management System and method
Ask interface, background server, client and task engine, client includes at least workflow engine and distributed field system
System.Wherein, access interface is used to the first workflow being sent to background server.Background server is for receiving access interface hair
The second workflow that the first workflow sent and task engine are sent, changes the first workflow and the second flow of work into target
Network format file, and target network formatted file is sent in the predetermined directory of distributed file system and is stored.Work
Make stream engine and obtains the target network formatted file from the distributed file system, it, will be described as pending task
Pending task is sent at least one task engine and is connected.Task engine is raw according to pending task described in preset script execution
Background server is flow at the second work of the implementing result for characterizing the pending task.As it can be seen that being established in the present embodiment
Connection between task engine and background server, the first workflow and task that background server can send access interface
The second workflow that machine is sent carries out task distribution, solves the problems, such as task engine single-point.Except this, workflow engine is for passing through
SSH agreement is connected at least one task engine, can support task engine load balancing.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond scope of the present application.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of Workflow Management System characterized by comprising access interface, background server, client and task
Machine, the client include at least workflow engine and distributed file system,
The access interface is used for, and the first workflow is sent to the background server, first workflow is based on default
Workflow definition language generate；
The background server is used for, and receives the first workflow that the access interface is sent and the second work that task engine is sent
It flows, changes first workflow and second flow of work into target network formatted file, and by the target network
Network formatted file is sent in the predetermined directory of the distributed file system and is stored；
The workflow engine is used for, and the target network formatted file is obtained from the distributed file system, as to
The pending task is sent at least one task engine by execution task；
The task engine is used for, and according to pending task described in preset script execution, is generated and is characterized the pending task
Second work of implementing result flow to the background server.
2. Workflow Management System according to claim 1, which is characterized in that the client further includes remote alarm interface,
The remote alarm interface is used for, when the workflow engine detects the pending task and the task engine connection failure
Or when detecting that the task engine executes the pending mission failure, alarm request is sent to preset network address.
3. Workflow Management System according to claim 1, which is characterized in that the workflow engine and multiple described
Business machine is connected,
The workflow engine determines that the load occupation rate is the smallest described according to the load occupation rate of multiple task engines
Task engine is goal task machine, and the pending task is sent to the goal task machine.
4. Workflow Management System according to claim 3, which is characterized in that the workflow engine obtains preset time
The load number of the interior task engine determines that the inverse of the load number is the load occupation rate.
5. Workflow Management System according to claim 1, which is characterized in that the preset workflow definition language is
YAML language.
6. Workflow Management System according to claim 1, which is characterized in that the access interface includes: web-page interface
And Software Development Kit interface,
The web-page interface and Software Development Kit interface are used for, and obtain the status information of first workflow, and defeated
Operational order out, the operational order include: enabled instruction, pause instruction, halt instruction and re-execute instruction.
7. Workflow Management System according to claim 1, which is characterized in that the access interface further includes that GitLab connects
Mouthful,
The GitLab interface is used for, and predefined grammatical and semantic inspection is carried out to first workflow, when first work
When meeting the predefined grammatical and semantic as stream, sends first work and flow to the background server, first work
Make stream and is based on YAML language generation.
8. a kind of Workflow management method, which is characterized in that applied to Workflow Management System described in claim 1-7, institute
Stating Workflow management method includes:
Receive the first workflow that the access interface is sent and the second workflow that the task engine is sent, first work
Make stream and second workflow to generate based on preset workflow definition language；
Change first workflow and second flow of work into target network formatted file, and by the target network
Formatted file is sent in the predetermined directory of the distributed file system and is stored；
The target network formatted file is obtained from the distributed file system, as pending task, by described wait hold
Row task is sent at least one task engine；
According to pending task described in preset script execution, described the of the implementing result for characterizing the pending task is generated
Two work flow to the background server.
9. Workflow management method according to claim 8, which is characterized in that further include:
When the workflow engine detects pending task and the task engine connection failure or detects that the task engine is held
When the pending mission failure of row, alarm request is sent to preset network address.
10. Workflow management method according to claim 8, which is characterized in that further include:
According to the load occupation rate of multiple task engines, determine that the smallest task engine of load occupation rate is appointed for target
Pending task is sent to the goal task machine by business machine.
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| CN111401566A (en) * | 2020-03-19 | 2020-07-10 | 中国建设银行股份有限公司 | Machine learning training method and system |
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