CN102930368A - Fault tolerant external application server - Google Patents
Fault tolerant external application server Download PDFInfo
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- CN102930368A CN102930368A CN2012103645610A CN201210364561A CN102930368A CN 102930368 A CN102930368 A CN 102930368A CN 2012103645610 A CN2012103645610 A CN 2012103645610A CN 201210364561 A CN201210364561 A CN 201210364561A CN 102930368 A CN102930368 A CN 102930368A
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Abstract
A fault tolerant external application server is provided. The external application service is a system based on web, and the system allows a user of client calculating equipment to work with files on internet through universal client machine application communicating with a host machine. The host machine provides a platform for interacting with the external application server, and the host machine is an agent of platform function. The external application server is realized as server field. Potential configurations among fault tolerant field system combination field members, interchangeable field members, and random health monitoring are copied, so the external application server is allowed to keep all functions and simultaneously provide in-progress configuration, and management of data base in real time state is not needed.
Description
Technical field
The present invention relates to application server, especially the error-tolerant applications server.
Background technology
Enterprise usually safeguards for different purposes and is stored in different local various types of documents.In many cases, create and store this document according to various software application and storage system.For example, can use and become document the next life such as text processing application, spreadsheet application, demonstration application, note application, graphic designs application, photography applications.Can store the document that generates via various storage systems, comprise be used to one or more content servers of storing various types of documents, be used for the storage document as the server of e-mail item (Email) annex, be used for the storage document as the storage system of conference accessory, be used for the storage document as Customer Relationship Management (CRM) system of the annex of main or customer data, being used for the storage document stores for general file used in everyday, and/or the storage document for the specific documentation storage of the special very demand of regulation (for example, from Documentum company
In typical server farm, all members of correct operation requirements field share the up-to-date and perfect understanding to field topological structure and configuration, to avoid losing function.For up-to-date understanding is provided, typical server farm depends on the state configuration database; Yet, the use of state configuration database has been increased usually the complexity of management, requirement, operation and the cost aspect of server farm.
The present invention makes for these and other consideration item just.
Summary of the invention
Provide this summary of the invention in order to introduce in simplified form some concepts that will further describe in the following detailed description.Content of the present invention is not intended to identify key feature or the essential feature of claimed subject, is not intended to the scope for the restriction claimed subject yet.
According to each embodiment, the external application servers field comprises fault-tolerant (FTF) system.The external application servers field has realized that as the result of FTF system low operation burden, minimum support software require and superior robustness, reliability and retractility.The primary clustering of FTF system comprises a Management Unit, interchangeable server component and health monitoring assembly.Generally speaking, FTF system management field state, this state description the current state of external application servers field, and cost and the complexity in state management data storehouse are not described.In order to realize this point, the FTF system is included in the various agencies of the upper operation of each member of external application servers field.The agency is the system service that difference in functionality is provided for the field member who moves this agency.
The field Management Unit comprises a state supervisor and a state reproducer.The major function of field Management Unit is to manage the configuration variation of a state and the field state is distributed the member that shows up.The field state supervisor is the agency who moves each member.Although each member moves a state supervisor, in any preset time, only have an example of a state supervisor to be designated as the home court state supervisor.Any example (that is, inferior example) that is not designated as main field state supervisor continues operation usually, but does not have responsibility (be them what do not do).The home court state supervisor is the field state of whole external application servers field management " official " (namely true) version.The FTF system stores official's field state in the central configuration store into.Each member caches to the local replica of field state in the local configuration store.
Even movable home court state supervisor lost efficacy, the FTF system also allows the external application servers field to continue operation.In this case, administrator hand ground specifies another state supervisor as the master.Because the FTF system there is no need to promote another state supervisor to the Variable Designing Of (fluid design) of field state processing.Each independent example of state supervisor continues to use the last known state at the local configuration store high speed buffer memory of this particular computing device to move independently, until specified new home court state supervisor.
Field state reproducer is to guarantee that each member has the suitable recently agency of copy of the field state of official version.An example of each computing equipment operation state reproducer.For a state that keeps the local cache version is suitably nearest, a state reproducer periodically contacts the home court state supervisor and official's field state is copied to the local configuration store of computing equipment.
Time quantum between the renewal of local configuration store represents the inherent latency in the Management Unit.Because the stand-by period that Management Unit is introduced, that official's field state propagation is shown up and related among the member, it is inconsistent (that is, the field state known to each member can be not identical with the field state known to official's field state and/or other members) that whole state is assumed to be.Along with period stand-by period through but without any configuration change, in case each member obtains official's field state from central configuration store, whole state (that is, external application servers operates as keeper's expection) that identify then.Period stand-by period there is no need in order to make the external application servers field keep using shorter.Period stand-by period through prolonging has only increased whole members and operated before needed time quantum as keeper's expection.
Because interchangeable server component, external application servers has represented Error Tolerance.Interchangeable server component allows the external application servers field to operate with inconsistent state, and does not lose function, and other benefits.The first aspect of interchangeable server component is role's assembly of expection.Specify the member of field and each member's role in the configuration on the scene; Yet external application servers role describes the principal focal point of this special member and the expection role that do not limit this member's function.Interchangeable server component requires whole members to move at least all agencies of the function special use of whole agencies or external application servers always.Thus, each member can carry out any action of usually being processed by external application servers.In addition, each member will carry out any action to its request, regardless of the expection role who is assigned to this member.
The second aspect of interchangeable server component is to retreat the behavior assembly.External application servers receives request from external source, and those ask to be distributed to a member based on the configuration of external application servers.In addition, can ask in member's intercropping appearance on the scene.If the member makes request to the field, but this request is not filled in the control of external application servers for any reason, then will makes request to other members that comprise the requestor, until this request is implemented.Retreat the behavior assembly and process external application servers to the response of the allocation problem in the state of field.If unaccountably error configurations or do not understood by external application servers of the person of being managed is set, then external application servers returns to the default value of this setting or suitably ignores this setting.
Expect role's assembly with the combination that retreats behavior assembly, interchangeable server system so that external application servers lost efficacy to each member or the conduct energy extreme of other modes is not fault-tolerant.Expection role subsystem and retreat the behavior subsystem and guarantee that whole requests that external application servers is made are not seeming processed in the situation of obvious (that is, obvious to the user) loss function.
Each member of health monitoring component monitors and each agency's of moving each member health.Each member moves a plurality of supervision agencies and health evaluating agency.The non-supervisory agency's of the upper operation of charge of overseeing member on the scene state is acted on behalf of in each supervision.If the non-supervisory agency's existing problems that are monitored, the supervision of then being responsible for agency will take suitable action.In each embodiment, suitable action includes but not limited to attempt restarting the non-supervisory agency who is associated who is not moving, and the non-supervisory agency's who is associated to the health evaluating proxy-reporting problem.The health evaluating agency determines based on the report that comes the self-supervisory agency whether a member is healthy, and reports healthy judge (that is, member's statement-of-health) to the home court state supervisor.Home court state supervisor and then record each member's statement-of-health as the part of field state.
Description of drawings
By reference following embodiment, appending claims and accompanying drawing, further feature of the present invention, each side and benefit will become better understood, wherein each element can convergent-divergent more to be shown clearly in details, in some views, the identical identical element of Reference numeral indication, and wherein:
Fig. 1 illustrates the block diagram of enterprise network, and this enterprise network adopts an embodiment of the unknowable document access of main frame system;
Fig. 2 illustrates the block diagram of an embodiment of the architecture of external application servers;
Fig. 3 illustrates the block diagram of external application servers, and this external application servers illustrates an embodiment of each assembly of fault-tolerant (FTF) system;
Fig. 4 is that available its put into practice the simplified block diagram of the computing equipment of various embodiments of the present invention;
Fig. 5 A and 5B are the simplified block diagrams that can be used to implement the mobile computing device of various embodiments of the present invention; And
Fig. 6 is the simplified block diagram that can implement therein the distributed computing system of various embodiments of the present invention.
Embodiment
Fault-tolerant external application servers is described herein and is illustrated in the accompanying drawings.External application servers is based on the system of web, the user that this system allows client computing device via the Universal Client with main-machine communication should be used for network on file work.Main frame is provided for the mutual platform of external application servers and as the agency of its function.External application servers is implemented as server farm.Fault-tolerant field system combined field member, interchangeable member, with optional health monitoring between potential configuration replication, provide when keeping repertoire with the permission external application servers and to carry out middle configuration, and do not need the real-time status management database.
Fig. 1 illustrates an embodiment of the exemplary enterprise network 100 that comprises one or more main frames 102 and one or more external application servers 104.User 106 uses web-browsing device 108 to visit main frame 102 from client computing device 110.Main frame 102 the most usually is the content server that document storage is also permitted for user's 106 management in document storage system 126.Generally speaking, main frame 102 operation host application 112, this host application provides the host subscriber interface 114 of the general function of processing host 102.In the general function of main frame 102 at least some comprise to user 106 provide access to the document 116 of having stored, the document 116 to be comprised in the content storage 126 and be intended to use support should be used for checked and/or edited.The general-purpose platform that main frame 102 also provides the service that makes external application servers 104 can use user 106.External application servers 104 provides based on the web of browser and uses, this web use allow user 106 with by main frame can with document carry out alternately.The open platform interface definition and guides the document function between main frame 102 and the external application servers 104.Main frame 102 is also realized the end points 120 from the external application servers received communication.Although main frame 102 initialization comprise the scene of the service of external application servers 104, main frame 102 is never called external application servers 104.On the contrary, external application servers 104 is showed the function of supporting, to operate for the Doctype of being supported with readjustment.
The one or more services based on web of external application servers 104 operations use 118, this service application 118 makes user 106 can access, check, edit and randomly carries out for content (namely, file or document) other operations, and from client computing device 110 by network execute file folder (namely, catalogue) management, and do not require local the installation and the required suitable application that works together of particular document type.The operation of external application servers 104 and output are not that to call the main frame 102 of function of external application servers 104 special-purpose.Each service is used 118 and is generally moved as the service on the external application servers 104.External application servers 104 uses the set of conventions of open platform interface and open platform interface incompatible integrated with main frame 102.Necessity operation and function that external application servers 104 provides the document with the selected file type to work together.External application servers 104 is that main frame is unknowable.In other words, the operation of external application servers 104 and/or output are not that to be convenient to access the main frame 102 of the service of external application servers 104 special-purpose.The service of processing various Doctypes is used 118 example and is comprised online (that is, based on web's) partner for the standard of working with word processing file, electrical form, demonstration and note (that is, local install) application.
118 operations that provide usually special use and selected file type or relevant with folder management are provided in each service.The core operation that external application servers 104 provides is to check and Edit Document.In each embodiment, service is used 118 one or more additional operations is provided, include but not limited to, the reformatting document is for checking, create new document, conversion document, embed document and broadcasting document from the angle of external application servers 104 at mobile device, broadcasting and embedding are specific oolhiu interactive user stream.In the situation of broadcasting, external application servers 104 is display document on a plurality of client computing devices 110, and follows the tracks of in one embodiment the current page of being checked at each place of a plurality of client computing devices 110.Main frame 102 management documents are uploaded, are broadcasted and initiate and the rich client entrance.In another embodiment of broadcast operation, the page is followed the tracks of and is processed by main frame 102.
Use entrance URL by one or more services and visit each service application 118 operation of supporting.Each service application entrance URL usefulness acts on the entrance for the external application servers 104 of the specific operation of particular document type.Generally speaking, the address that entrance URL comprises external application servers 104 is used in each service, and appointed task (for example, using the embedded editor of spreadsheet application) and the desired data that is associated with the task of asking, the i.e. access token of the metadata URL of document and granted access.
When user 106 selected to be used for an operation of document, main frame 102 generated the service that is used for this operation for user-selected document and uses entrance URL.Particularly, applications homepage 122 generates with service and uses the 118 URL parameters of using.The parameter that applications homepage 122 generates includes but not limited to access token and origin url.Origin url is that the URL that 118 usefulness visit host end point 120 and document is used in service.Access token be to user/object concerning unique token, this user/object of host end point 120 usefulness is to coming authenticated 106 and authorizing and document and/or service used 118 access.In each embodiment, identify-based, timestamp and document identifier are calculated access token, and encrypt this access token with main frame 102 known (for example, being stored in the host configuration database) passwords.
Process service application entrance by the wrapper that main frame 102 provides.The wrapper that main frame 102 provides is a framework or environment, and this framework or environment show the output of external application servers 104, and acceptance comes from permission user 106 usefulness service application 118 functions that provide and the input of the client computing device 110 that document is mutual.In one embodiment, wrapper comprises applications homepage 122 and/or application of frame 124.As example, an embodiment of the applications homepage 122 that main frame 102 generates uses the single page of page trustship in the web page container with whole services that application server 104 generates, such as the inline frame (iFrame) of the layout of using one by one the limit.Applications homepage 122 itself does not have user interface.The replacement of applications homepage realizes can comprising for user interface described above or alternative other Web page-containers and layout.
The necessary function that external application servers 104 provides access, edit, check and otherwise handle or work with various Doctypes.In described embodiment, external application servers 104 does not comprise that the complexity and expense, the user that are associated with access to netwoks authenticate, file storage, network and file security and other management roles of usually being processed and usually be exclusively used in specific enterprise by other servers in the network.Ignore these features and external application servers is focused on and process document function by the open platform interface and allow external application servers 104 to be used to various enterprise network scenes.Should be appreciated that execution as described herein and bear usually the additional characters processed by other servers on the enterprise network and the external application servers 104 of responsibility falls into scope and spirit of the present invention.
Main frame is can use Universal Client to use (such as the web-browsing device) to use by the line server that network visits.The service that external application servers 104 provides is consumed by main frame, and can use client computing device.When being attached to external application servers 104, main frame becomes knows service application and the function that external application servers 104 is supported.The open platform interface is extendible, and the support to the interface communication of cross-version is provided.The master data transmission mechanism of open platform interface has made things convenient for cross-platform communication.In each embodiment, fall into scope and spirit of the present invention although will be appreciated that other mankind and/or machine-readable data Interchange Format, master data transmits in JavaScript Object Notation (JSON) main body.The open platform interface is also observed the service-oriented architecture principle such as some application boundary interfaces of Windows Communication Foundation (WCF) employed " ignoring (ignore what you weren ' t expecting) that you do not expect " and " using you just expecting but the default value (use default values for data you were expecting but didn ' t get) of the data that do not obtain ".The semanteme of open platform interface employed " default value must bring acceptable behavior " helps to keep the function in the world of height cross-version.
Fig. 2 illustrates an embodiment of the topological structure of the external application servers 104 that is implemented as the multiserver field.External application servers 104 needn't comprise a plurality of servers.Realize an embodiment of external application servers 104 with single computing equipment, this single computing equipment moves effectively as individual server " field ".In one embodiment, each member 202,204a, 204b, the 204c of external application servers field 200 are assigned the role as front-end server 202 or back- end server 204a, 204b, 204c.Front-end server 202 is responsible for the document process request is routed to back- end server 204a, 204b, the 204c that is associated with selected Doctype.When using an above front-end server 202, realize improved performance by using between front-end server 202 the optionally supported evener 206 of distribute traffic.The document process service of the document that back- end server 204a, 204b, 204 are provided for supporting.In an illustrated embodiment, each back- end server 204a, 204b, 204c provide the document process service for specific Doctype.
In an illustrated embodiment, the field state 208 of external application servers 104 is stored in the one or more files that comprise in the central configuration store 210.The information that comprises in the state 208 includes but not limited to one or more in the following: a topological structure (that is, to the member's of field sign), a member role, field member's configuration setting, the external application servers configuration arranges, and configuration setting is used in service, and a member is healthy.Each member 202,204a, 204b, 204c must have the read access to central configuration store 210.In an illustrated embodiment, central configuration store 210 is the Shared Folders that can be read by each computing equipment that forms external application servers.In each embodiment, the file of a storage state 208 is machine-readable, and randomly is that the people is readable.
Communication is safe can ask for high-speed cache and back-end server with a member who guarantees to only have in one embodiment.This identity of sending the machine of request by inspection realizes.Communication is by the security of randomly encrypting to be enhanced in.
Fig. 3 shows the external application servers field 200 of an embodiment with fault-tolerant (FTF) system 300.External application servers field 200 has realized that as the result of FTF system 300 low operation burden, minimum support software require and superior robustness, reliability and retractility.The primary clustering of FTF system 300 comprises a Management Unit 302, interchangeable server component 304 and health monitoring assembly 306.Generally speaking, FTF system 300 a management state 208, this state 208 has been described the current state of external application servers field 200, and does not describe cost and the complexity in state management data storehouse.In order to realize this point, FTF system 300 is included in the various agencies of the upper operation of each member of external application servers field 200.The agency is the system service that difference in functionality is provided for the field member who moves this agency.In an illustrated embodiment, external application servers field 200 illustrates the variable collection of a member 308a-308n.
Field Management Unit 302 comprises state supervisor 310a, a 310b and a state reproducer 312.The major function of field Management Unit 302 is to manage the configuration variation of a state and the field state is distributed the member 308a-308n that shows up.
Home court state supervisor 310a is the field state 208 of whole external application servers field 200 management " official " (namely true) version.FTF system 300 is stored in official's field state 208 in the central configuration store 210.Each member caches to the local replica of field state in the local configuration store 314.
The configuration change that state supervisor 310a acceptance in home court is made from any member, and the configuration status of the official version in the renewal central configuration store 210.Pre-anti-collision produces when attempting a plurality of configuration change at the same time, and the home court state applies access control to central configuration store 210.In one embodiment, home court state supervisor 310a writes configuration status to the configuration file in the central configuration store 210 and changes, and comes control hazard by lock arrangement file when receiving configuration change.In one embodiment, central configuration store 210 is field local configuration store 314 on the member of operation home court state supervisor 310a.Home court state supervisor 310a also accepts the request to the current copy of field state from any member 308a-308n.In certain embodiments, home court state supervisor 310a only accept from the institute selected scenes member's and/or be not the member's of external application servers field 200 configuration change and the request of selected computing equipment.
Even movable home court state supervisor 310a lost efficacy, FTF system 300 also allows external application servers field 200 to continue operation.In this case, administrator hand ground specifies another state supervisor 310b as the master.Because the Variable Designing Of of 300 pairs of field state processing of FTF system there is no need to promote another state supervisor 310b.Each independent example of state supervisor 310b continues to use the last known state at the local configuration store 314 high speed buffer memorys of this particular computing device to move independently, until specified new home court state supervisor 310a.In alternative embodiment, external application servers automatically promotes another state supervisor as the master.In each embodiment, the automatic decision of an example of automatic lifting field state supervisor is fully arbitrarily, perhaps based on choice criteria (for example, role, load and/or the resource of consideration computing equipment, and/or the time of nearest field state replicate run).
Field state reproducer 312 is to guarantee that each member 308a-308n has the suitable recently agency of copy of the field state of official version.An example of each computing equipment operation state reproducer 312; Yet, different from the field state supervisor, there is not home court state reproducer.For a state that keeps the local cache version is suitably nearest, a state reproducer 312 periodically contacts home court state supervisor 310a and official's field state is copied to the local configuration store 314 of computing equipment.In one embodiment, a state reproducer 312 comes more new field member's Local Fields state according to timetable (for example, every 30 seconds).In certain embodiments, each independent field state reproducer 312 operates according to timetable independently.In other embodiments, each independent field state reproducer 312 operates according to table common time (for example, the per minute of synchronous clock is initial) based on major clock.In certain embodiments, a state reproducer 312 upgrades local configuration status in response to an event or other similar triggerings.
Time quantum between the renewal of local configuration store represents the inherent latency in the Management Unit 302.Because the stand-by period that Management Unit is 302 that introduce, official's field state propagation is shown up and related among the member 308a-308n, it is inconsistent (that is, the field state known to each member can be not identical with the field state known to official's field state and/or other members) that whole state is assumed to be.Along with period stand-by period process but without any configuration change, in case each member 308a-308n obtains official's field state from central configuration store 210, whole state (that is, external application servers operates as keeper's expection) that identify then.Period stand-by period there is no need in order to make external application servers field 200 keep using shorter.Period stand-by period through prolonging has only increased whole members and operated before needed time quantum as keeper's expection.
Because interchangeable server component 304, external application servers 104 has represented Error Tolerance.Interchangeable server component 304 allows external application servers field 200 to operate with inconsistent state, and does not lose function, and other benefits.The first aspect of interchangeable server component 304 is role's assemblies of expection.Specify the member of field and the role of each member 308a-308n in the configuration on the scene; Yet external application servers role is except common expection role with the accurate role that General Server uses.Accurately role definition the service that moves at particular server.Usually finish to the accurate role of server assignment to come the performance of Optimized Service device or customize the function of being processed by particular server according to the resource of server.On the contrary, the principal focal point of expection Role delineation this special member, and do not limit this member's function.Although the expection role does not directly affect member's function, to expecting that role's use provides other benefits, such as the improvement in performance owing to load balancing between the member.
The second aspect of interchangeable server component 304 is to retreat the behavior assembly.External application servers 104 receives request from external source, and those ask to be distributed to a member based on the configuration of external application servers.In addition, can ask in the member 308a-308n intercropping appearance on the scene.If the member makes request to the field, but this request is not filled in the control of external application servers for any reason, then will makes request to other members that comprise the requestor, until this request is implemented.In the situation that extreme, interchangeable server system allows a member (being the requestor) to process its request.Retreat the behavior assembly and process the response of the allocation problem in the 200 pairs of field states in external application servers field.If unaccountably error configurations or do not understood by external application servers 104 of the person of being managed is set, then external application servers 104 returns to the default value of this setting or suitably ignores this setting.
Expect role's assembly with the combination that retreats behavior assembly, interchangeable server system so that external application servers was lost efficacy by each member or otherwise conduct can be extremely not fault-tolerant.Expection role subsystem and retreat the behavior subsystem and guarantee that whole requests that external application servers is made are not seeming processed in the situation of obvious (that is, obvious to the user) loss function.
Except the reliability benefit, FTF system 300 provides extra advantage to the keeper of external application servers field 200.The first, by assembling to come the statement-of-health of each member in the self-fields state, manage burden and be simplified, because exist single place to check to check the health of field.There is no need to locate to check healthy each member individually.The second, the health data after the gathering is monitored like a cork by independent adviser tool.For example, health data is involved in event log or independent adviser tool (for example, comprehensive enterprise or network monitoring system), and warning is sent to the external application servers keeper in problematic situation.The 3rd because state is by all member's high-speed caches, even therefore in the situation that lose central configuration store, the true copy of official's field state or at least suitably nearest copy be available.The valuable health data that this comes in handy when being included in the investigation failure cause.
FTF system 300 comes to provide healthy and strong fault-tolerant by some that the efficient that provided by the unusual system for managing state of regulation is provided in system low-cost, that easily manage.When state becomes inconsistent then and there, no matter be because the result that the stand-by period member that FTF system 300 introduces was lost efficacy, outer application system all continues operation, although owing to lack load balancing and maybe must carry out a plurality ofly retreating request and possible loss efficient.Under the extreme case that does not have available home court state supervisor 310a, FTF system 300 allows external application servers to continue (although possible poor efficiency ground) operation, and each member moves asynchronously based on the field state of the high-speed cache in this member's the local configuration store.When the field state became consistent, external application servers field 200 calmed down and moves as keeper's expection.
Embodiment described herein and function can operate via many computing systems, with reference to figure 1 described main frame 102 and external application servers 104 and client devices 110, comprise wired and wireless computing system, mobile computing system (such as mobile phone, graphic tablet or Tablet PC, laptop computer etc.) such as top.In addition, embodiment as herein described and function can be in distributed system operations (such as the computing system based on cloud), and wherein application function, storer, data storage and search and various processing capacity can each other remotely operations on the distributed computing network such as the Internet or Intranet.Various types of user interfaces and information can be carried computing equipment display or shown through the remote display unit that is associated with one or more computing equipments through plate.For example, various types of user interfaces and information can be shown and mutual at wall surface, and various types of user interfaces and information are projected on the wall surface.With comprising alternately of the many computing systems that can be used for implementing various embodiments of the present invention: thump input, touch-screen input, voice or the input of other audio frequency, posture input (computing equipment that wherein is associated is equipped with for detection (such as the camera) function that catches and explain the user's posture of the function that is used for the control computing equipment) etc.Fig. 4 to 6 and associated description provide the discussion that wherein can implement the various operating environments of various embodiments of the present invention.Yet and the equipment discussed shown about Fig. 4 to 6 and system are the purposes for example, but not to the restriction of a large amount of computing equipments configurations that can be used to implement various embodiments of the present invention as herein described.
Fig. 4 is the block diagram that the exemplary physical assembly of the computing equipment 400 that can be used to implement various embodiments of the present invention is shown.The computing equipment assembly that the following describes can be suitable for above-described computing equipment, for example main frame 102, external application servers 104 and client computing device 110.In basic configuration, computing equipment 400 can comprise at least one processing unit 402 and system storage 404.The configuration and the type that depend on computing equipment, system storage 404 can include but not limited to, volatile memory (for example, random-access memory (ram)), nonvolatile memory (for example, ROM (read-only memory) (ROM)), flash memory or any combination.System storage 404 can comprise operating system 405 and one or more programming module 406, this programming module 406 such as client application (for example is suitable for operation, user agent/web-browsing device 108) or server use the application 420 of (for example, host application 112 or service use 118).Operating system 405 for example can be suitable for controlling the operation of computing equipment 400.In addition, embodiments of the invention can be put into practice in conjunction with shape library, other operating systems or any other application program, and are not limited to any application-specific or system.This basic configuration is illustrated by those assemblies in the dotted line 408 in Fig. 4.
As mentioned above, can in system storage 404, store a plurality of program modules and the data file that comprises operating system 405.When processing unit 402 is carried out, programming module 406 can be carried out each process, for example comprises one or more in each step of fault-tolerant field system 400.Said process is an example, and processing unit 402 can be carried out other processes.Can comprise Email and contact application, text processing application, spreadsheet application, database application, slide presentation application, drawing or area of computer aided application etc. according to spendable other programming modules of embodiments of the invention.
Generally speaking, according to embodiments of the invention, program module can comprise can carry out the structure that particular task maybe can realize routine, program, assembly, data structure and the other types of particular abstract data type.In addition, embodiments of the invention can be put into practice with other computer system configurations, comprise portable equipment, multicomputer system, based on the system of microprocessor or programmable consumer electronics, minicomputer, mainframe computer etc.Embodiments of the invention are also put into practice in the distributed computing environment of task by the teleprocessing equipment execution that links by communication network therein.In distributed computing environment, program module can be arranged in local and remote memory storage device both.
In addition, embodiments of the invention can comprise the circuit of discrete electronic component, comprise logic gate encapsulation or integrated electronic chip, utilize the circuit of microprocessor or put into practice at the one single chip that comprises electronic component or microprocessor.For example, can implement various embodiments of the present invention by SOC (system on a chip) (SOC), wherein, each shown in Fig. 4 perhaps multicompartment can be integrated on the single integrated circuit.Such SOC equipment can comprise one or more processing units, graphic element, communication unit, system virtualization unit and various application function, and all these is integrated on (or " being burnt to ") chip substrate as single integrated circuit.When operating by SOC, the function that various client computer and/or server are used can realize by the application-specific logic that is integrated with other assembly of computing equipment 400 at single integrated circuit (chip).Embodiments of the invention also can use can be carried out such as for example, AND(with), OR(or) and NOT(non-) the other technologies of logical operation put into practice, include but not limited to machinery, optics, fluid and quantum technology.In addition, embodiments of the invention can be put into practice in multi-purpose computer or any other circuit or system.
For example, embodiments of the invention can be implemented as computer procedures (method), computing system or the goods such as computer program or computer-readable medium.Computer program can be computer system-readable and to the computer-readable storage medium of the computer program code of the instruction that is used for the object computer process.
The term as used herein computer-readable medium can comprise computer-readable storage medium.Computer-readable storage medium can comprise volatibility and non-volatile, the removable and irremovable medium of realizing with any method that is used for information such as computer-readable instruction, data structure, program module or other data of storage or technology.System storage 404, removable storage 409 and irremovable storage 410 all are the examples (that is, memory stores) of computer-readable storage medium.Computer-readable storage medium can comprise, but be not limited to RAM, ROM, electricallyerasable ROM (EEROM) (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical storages, tape cassete, tape, disk storage or other magnetic storage apparatus or can be used for storage information and can be by any other medium of computing equipment 400 access.Any such computer-readable storage medium can be the part of equipment 400.Computing equipment 400 also can have input equipment 412, such as keyboard, mouse, pen, audio input device, touch input device etc.Also can comprise output device 414, such as display, loudspeaker, printer etc.The said equipment is example, and can use other equipment.
The term as used herein computer-readable medium also can comprise communication media.Telecommunication media can be embodied by computer-readable instruction, data structure, program module or other data in the modulated message signal such as carrier wave or other transmission mechanisms, and comprises any information transmitting medium.The signal of setting or change its one or more features in the mode that the information in this signal is encoded can be described in term " modulated message signal ".And unrestricted, communication media comprises wire mediums such as cable network or direct line connection and wireless mediums such as acoustics, radio frequency (RF), infrared ray and other wireless mediums as example.Computing equipment 400 can comprise the communication connection 416 that permission is communicated by letter with other computing equipments 418.The example of suitable communication connection 416 includes but not limited to RF transmitter, receiver and/or transceiver circuit; Other connections that USB (universal serial bus) (USB), parallel or serial port and being applicable to uses with applicable computer-readable medium.
Fig. 5 A and 5B illustrate the suitable mobile computing environment that can be used to implement various embodiments of the present invention, such as mobile phone 500, smart phone, tablet personal computer, laptop computer etc.With reference to figure 5A, show for the example mobile computing device 500 of realizing each embodiment.In basic configuration, mobile computing device 500 is the handheld computers with input element and output element.Input element can comprise and allows the user with touch-screen display 505 and the load button 510 of input information in the mobile computing device 500.Mobile computing device 500 also can be in conjunction with the optional side input element 515 that allows further user's input.Optional side input element 515 can be the manual input element of rotary switch, button or any other type.In alternate embodiment, mobile computing device 500 can be in conjunction with more or less input element.For example, in certain embodiments, display 505 can not be touch-screen.In another alternate embodiment, mobile computing device is portable telephone system, as has the cell phone of display 505 and load button 510.Mobile computing device 500 also can comprise optional keypad 535.Optional keypad 535 can be physics keypad or " soft " keypad of generating at touch-screen display.
Mobile computing device 500 is in conjunction with output element, but such as the display 505 of display graphics user interface (GUI).Other output elements comprise LED light 520 and loudspeaker 525.In addition, mobile computing device 500 can comprise the vibration module (not shown), this vibration module so that mobile computing device 500 vibration with event notice to the user.In another embodiment, mobile computing device 500 can in conjunction with the earphone jack (not shown), be used for providing another means of output signal.
Although making up mobile computing device 500 herein describes, but in alternate embodiment, the present invention also any amount of computer system capable of being combined is used, as in desktop environment, on knee or notebook computer system, multicomputer system, based on microprocessor or programmable consumer electronics, network PC, small-size computer, mainframe computer etc.Embodiments of the invention also can be put into practice in distributed computing environment, and wherein task is by carrying out by the teleprocessing equipment of communication network link in the distributed computing environment; Program can be arranged in the machine and remote memory storage device.Generally speaking, have a plurality of environmental sensors, provide any computer system of a plurality of output elements of notice and a plurality of notification event types can be in conjunction with embodiments of the invention to the user.
Fig. 5 B is the block diagram that the assembly of the mobile computing device the computing equipment shown in Fig. 5 A that uses is shown in one embodiment.That is, but mobile computing device 500 coupling systems 502 to realize some embodiment.For example, system 502 can be used to realize to move " smart phone " of one or more application like the application class with desk-top or notebook, these application examples such as browser, Email, schedule, instant message transrecieving and media player applications.In certain embodiments, system 502 is integrated into computing equipment, such as integrated PDA(Personal Digital Assistant) and wireless telephone.
One or more application programs 566 can be loaded in the storer 562 and move explicitly on operating system 564 or with operating system 564.The example of application program comprises Phone Dialer, e-mail program, PIM(personal information management) program, word processing program, spreadsheet program, the Internet browser programs, message communicating program etc.System 502 also comprises the non-volatile memories 568 in the storer 562.The permanent message that can not lose when non-volatile memories 568 can be used to the system's of being stored in 502 outage.Use 566 and can use information and information is stored in the non-volatile memories 568, the Email that uses such as e-mail applications or other message etc.The synchronous applications (not shown) also reside in the system 502 and be programmed to reside in host computer on corresponding synchronous applications carry out alternately, to keep being stored in the information and the corresponding informance synchronised that is stored on the host computer in the non-volatile memories 568.As being understood, other application can be loaded in the storer 562 and in equipment 500 operations, comprise various client-server application described herein.
This embodiment of system 502 is shown to have two types notice output device: can be used for providing the light emitting diode (LED) 520 of visual notification and can be used for making the audio interface 574 that is used to provide audible notification with loudspeaker 525.These equipment can be directly coupled to power supply 570, so that when being activated, even may close processor 560 and other assembly in order to save the power of battery, they also keep one section by the maintenance conduction time of informing mechanism indication.LED 520 can be programmed and ad infinitum keep energising, the "on" position of this equipment of indication until the user takes action.Audio interface 574 is used for audible signal being provided and receiving audible signal from the user to the user.For example, except being coupled to loudspeaker 525, audio interface 574 also can be coupled to microphone to receive sense of hearing input, such as being convenient to telephone conversation.According to each various embodiments of the present invention, microphone also can serve as audio sensor be convenient to the notice control, as will be described below.System 502 can comprise further that the operation that allows plate to carry camera 530 records the video interface 576 of rest image, video flowing etc.
Mobile computing device realizes that system 502 can have supplementary features or function.For example, equipment also can comprise additional data storage device (movably/or immovable), such as disk, CD or tape.Being stored among Fig. 5 B that these are other illustrated by storage 568.Computer-readable storage medium can comprise volatibility and non-volatile, the removable and irremovable medium of realizing with any method that is used for information such as computer-readable instruction, data structure, program module or other data of storage or technology.
Data/information that equipment 500 generates or catches and that store through system 502 is stored on the equipment 500 this locality as mentioned above, data can be stored in can by equipment by radio 572 or by equipment 500 and with the computing equipment of opening in a minute that equipment 500 is associated between any amount of storage medium of wired connection access on, this computing equipment is such as the server computer in the distributed computing network of for example the Internet and so on.As should be understood, this type of data/information can be through equipment 500, through radio 572 or next accessed through distributed computing network.Similarly, these data/information can easily be transmitted between computing equipment for storage and use according to known data/information transmission and storage means, and these means comprise Email and collaboration data/information sharing system.
Fig. 6 illustrates for provide aforesaid browser application 108, host application 112 and/or service to use 118 system architecture to one or more client devices.With host application 112 and/or service use 118 explicitly content open, mutual or editor can be stored in different communication channel or other storage classes.For example, can store various documents with directory service 622, web door 624, mailbox service 626, instant messaging storage 628 and social networking website 630.As mentioned above, 118 any that can use for the system of these types that allow data to utilize etc. are used in host application 112 and/or service.Server 620 can be client computer provides host application 112 and/or service to use 118.As an example, server 620 can be to provide host application 112 and/or service to use 118 web server by web.Server 620 can provide host application 112 and/or service on the web to use 118 to client computer by network 615.The example of the client computer of the unknowable document access of addressable main frame system 100 comprises computing equipment 400, and computing equipment can comprise any general purpose personal computer 110a, dull and stereotyped computing equipment 110b and/or such as the mobile computing device 110c of smart phone.In these equipment any can obtain content from storing 616.
Above reference example is as block diagram and/or the operational illustrations of method, system and computer program have been described embodiments of the invention according to an embodiment of the invention.Each function/action of being indicated in the frame can occur by being different from the order shown in any process flow diagram.For example, depend on related function/action, in fact two frames that illustrate continuously can be carried out substantially simultaneously, and perhaps these frames can be carried out by opposite order sometimes.
Although described specific embodiment of the present invention, also may there be other embodiment.In addition, although embodiments of the invention be described to be stored in storer and other storage mediums in data be associated, but data also can be stored on the computer-readable medium of other types or from it and read, such as auxiliary storage device (as hard disk, floppy disk or CD-ROM), from carrier wave or other forms of RAM or the ROM of the Internet.In addition, each step of disclosed method can be revised by any way, comprises by to each step rearrangement and/or insertion or delete step, and does not deviate from the present invention.
In various embodiments, be used for including but not limited to internet, Intranet, wide area network (WAN), Local Area Network and VPN (virtual private network) (VPN) in the type that consists of the network that communicates between the computing equipment of the present invention.In this application, network comprises that enterprise network and client computes equipment are used for the network (being client network) of access enterprise networks network.In one embodiment, client network is the part of enterprise network.In another embodiment, client network is the network of opening in a minute that visits enterprise network by available entrance, outside (such as gateway, remote access protocol or public or private internet address).
The description of the one or more embodiment that provide among the application and explanation are not intended to limit by any way or retrain such as claim invention scope required for protection.The embodiment that provides among the application, example and details are considered to be enough to pass on entitlement, and so that other people can make and use the optimal mode of invention required for protection.Invention required for protection should not be understood to be limited to any embodiment, example or the details that provides among the application.No matter the mode or the mode of separating that make up illustrate and describe, various features (structural and method in logic) are intended to optionally be comprised or ignore to have the embodiment of specific feature set with generation.In the situation of the description that is provided the application and explanation, those skilled in the art can imagine that the alternate embodiment in the spirit of the general inventive concept of being specialized among the more wide in range aspect that drops on invention required for protection and the application does not deviate from this more wide in range scope.
Claims (10)
1. an external application servers (104) comprising:
Field configuration (208);
One or more computing equipments (308a-n), each computing equipment are the members of server farm (300), and each described member has the local configuration store position (314) be used to the copy of storing described configuration;
Each described member's administration agent (310a-b), each described member moves an example of described administration agent, a described administration agent is designated as master management agent, move described local configuration store position on the member of described master management agent and be designated as central configuration store position (210) be used to the primary copy of preserving described configuration, described master management agent is safeguarded the described primary copy of described configuration;
Each described member's a replication agent (312), each described member moves an example of described replication agent, described replication agent is periodically from the copy of described the configuration of described master management agent request, and stores the described copy of described configuration on the described member described local configuration store position; And
Each described member's a document process agency (316a-d), each described member move described document process agency's a example, and described document process agency provides the function mutual with the document of selected file type.
2. external application servers as claimed in claim 1, it is characterized in that, also comprise a plurality of supervision agencies (318a-f), each described member moves each supervision agency's a example, described a plurality of supervision agency comprises the supervision agency be used to the agency who is monitored, and the described agency who is monitored is included in another agency of the upper operation of described member.
3. external application servers as claimed in claim 2, it is characterized in that, also comprise a plurality of health evaluating agencies (320), each described member moves described health evaluating agency's a example, each described supervision agency is to the described agency of being monitored corresponding to described health evaluating proxy-reporting the Agent Status that is monitored, described health evaluating agency generates member's statement-of-health based on described president agency who is monitored, and each described health evaluating agency reports described member's statement-of-health to described master management agent.
4. external application servers as claimed in claim 3 is characterized in that, described master management agent stores described member's statement-of-health in described the configuration into.
5. such as any described external application servers among the claim 1-4, it is characterized in that, assign the expection role to each described member, and what the described expection role who no matter is assigned to described member is, any request that each described member of described member's subtend makes responds.
6. one kind externally provides fault-tolerant method in the application server field, said method comprising the steps of:
One or more computing equipments (308a-n) are provided, and each described computing equipment is the member of server farm (300);
Operational management agency (310a-b) on each described member;
Described administration agent on the described member is appointed as master management agent;
Use described master management agent that official's field configuration store is arrived in central authorities' configuration store (210);
Move replication agent (312) each described member;
Use described replication agent to the copy of the described official of described master management agent request field configuration;
The described copy of described official field configuration is stored in the local configuration store (314) on the described member; And
Each described member operation document process agency (316a-d), described document process agency provides the function mutual with the document of selected file type.
7. method as claimed in claim 6, it is characterized in that, each described administration agent, each described replication agent and each described document process agency are the agencies who is monitored, and it upward is each step of acting on behalf of in-service surveillance agency (318a-f) that is monitored that described method also is included in each described member.
8. method as claimed in claim 7 is characterized in that, and is further comprising the steps of:
Each described member operation health evaluating agency (320); And
Use each described supervision agency to the described agency who is monitored corresponding to described health evaluating proxy-reporting Agent Status; And
Use described health evaluating agency to the member statement-of-health of described master management agent transmission based on each described Agent Status.
9. such as any described method among the claim 6-8, it is characterized in that, the described expection role who also comprises described member is the step that whole requests that what all allows each described member of described member's subtend to make respond.
10. external application servers comprises:
Field configuration (208);
One or more computing equipments (308a-n), each computing equipment are the members of server farm (300), and each described member has the local configuration store position (314) be used to the copy of storing described configuration;
A plurality of agencies that are monitored comprise:
(i) administration agent (310a-b) that moves each described member, a described administration agent is designated as master management agent, move described local configuration store position on the described member of described master management agent and be designated as central configuration store position (210) be used to the primary copy of preserving described configuration, described master management agent is safeguarded the described primary copy of described configuration;
(ii) replication agent (312) of moving each described member, described replication agent is periodically to the copy of described the configuration of described master management agent request, and stores the described copy of described configuration on the described member described local configuration store position; And
(iii) each described member operation document process agency (316a-d), each described document process agency provides the function mutual with the document of selected file type;
The a plurality of supervision agencies (318a-f) that each member moves, each described supervision agency is associated uniquely with a described agency who is monitored, and the described agency who is monitored that each described supervision proxy-reporting is associated is monitored Agent Status; And
Act on behalf of (320) at the health evaluating that each member moves, each described health evaluating agency receives and describedly is monitored Agent Status and generates member's statement-of-health, and described health evaluating agency sends described member's statement-of-health in order to be included in described the configuration to described master management agent.
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| US201161539975P | 2011-09-27 | 2011-09-27 | |
| US61/539,975 | 2011-09-27 | ||
| US13/284,718 | 2011-10-28 | ||
| US13/284,718 US20130080603A1 (en) | 2011-09-27 | 2011-10-28 | Fault Tolerant External Application Server |
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| CN102930368A true CN102930368A (en) | 2013-02-13 |
| CN102930368B CN102930368B (en) | 2017-05-03 |
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| CN201210364561.0A Expired - Fee Related CN102930368B (en) | 2011-09-27 | 2012-09-26 | Fault tolerant external application server |
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