WO2000047003A1 - Procede, systeme, et produit de programme informatique, destines a une consignation adaptative d'evenements - Google Patents

Procede, systeme, et produit de programme informatique, destines a une consignation adaptative d'evenements Download PDF

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Publication number
WO2000047003A1
WO2000047003A1 PCT/US2000/001623 US0001623W WO0047003A1 WO 2000047003 A1 WO2000047003 A1 WO 2000047003A1 US 0001623 W US0001623 W US 0001623W WO 0047003 A1 WO0047003 A1 WO 0047003A1
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WO
WIPO (PCT)
Prior art keywords
logging
events
filtered
logger
server
Prior art date
Application number
PCT/US2000/001623
Other languages
English (en)
Inventor
Jeffrey Jackiel Rothschild
Andrew D. Riedel
Original Assignee
Mpath Interactive, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mpath Interactive, Inc. filed Critical Mpath Interactive, Inc.
Publication of WO2000047003A1 publication Critical patent/WO2000047003A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/069—Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0604—Management of faults, events, alarms or notifications using filtering, e.g. reduction of information by using priority, element types, position or time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0062—Provisions for network management

Definitions

  • the present invention pertains to the field of network system administration.
  • the present invention relates to obtaining, managing, and controlling log information on events in a network.
  • Networks link many users.
  • a distributed network such as the Internet, links users from a variety of locations.
  • Users can engage other users in real-time, interactive applications over a network. Examples of real-time, interactive applications include multi-player gaming applications and chat programs.
  • Online services further support real-time, interactive applications over a network.
  • On-line services work to ensure a good user experience. For example, an on-line service, such as, MPLAYER offered by Mpath Interactive, Inc. at www.mplayer.com, supports matching, chat, and gaming facilities.
  • Logging information is generated during operation of an on-line service, and in particular, during the execution of an interactive application by multiple users.
  • Logging information can be any type of information that is desired to be logged.
  • logging information can include any type of trans actional and/or event log message generated during execution of an interactive gaming application.
  • Logging information can include statistical, debug, and error information.
  • a system administrator module is connected to a log server and multiple application s ervers through a network.
  • the application servers forward logging information to the log server for storage in a log store.
  • Filters or loggers are provided at each application server to filter the logging information which is generated and sent to the log server.
  • a system administrator can send a command to the filters so that all application servers log all logging information including statistical, debug and error information. In this way, the administrator controls the level of logging.
  • the system administration module also generates representations of the past or current performance of each application server. If a problem is reported at a particular application server, the system administrator can review stored logging information to diagnosis or trace the problem.
  • system administrators face an increasing amount of logging information.
  • system administrators face a trade-off between the level of logging detail and the cost to store and review stored logging information that is collected.
  • the level of logging detail In a 10,000 user gaming service, if a system administrator sets a low logging level of detail to log all statistical, debug and error information then the amount of stored logging information can soon be quite large. Further this logging information is stored even when a user has a good experience. These factors increase both personnel costs and storage costs. Troubleshooting and error tracing becomes more time-consuming because a system administrator must sift through more irrelevant information. If the logging level is increased (i.
  • the present invention provides a method, system, and computer program product for adaptive logging.
  • Logging events are filtered and stored locally based on at least one initial logging level.
  • the stored logging events are flushed to a remote log server when a flush policy criteria is met.
  • the initial logging level and flush policy criteria can be set or changed adaptively from a remote site.
  • the initial logging level determines which priority levels of logging events are filtered and stored in a temporary local site.
  • the flush policy determines when the filtered logging events are forwarded from the local site to a remote log server and persistent log store.
  • a system for adaptively logging at a node includes at least one class logger, a node logger, and at least one local log cache.
  • Each class logger is coupled to at least one local log cache.
  • the node logger is coupled between each local log cache and a remote log server.
  • Each class logger filters logging events for a respective class of logging events based on at least one initial logging level and forwards the filtered logging events to a respective at least one local log cache for storage.
  • the node logger determines whether a flush policy criteria is met.
  • the node logger flushes the stored filtered logging events to the remote log server when the flush policy criteria is met.
  • An adaptive logging controller enables one to set or change at least one initial logging level for each respective class logger and to set or change a flush policy criteria for the node logger.
  • the adaptive logging controller sends commands to set or change the at least one logging level from a remote system administrator over the Internet to each class logger. In this way, the number of logging levels which are logged can be adaptively increased or decreased.
  • commands can be defined in a name space based on class names.
  • the adaptive logging controller also sends commands to set or change the flush policy from the remote system administrator over the Internet to the node logger. In this way, the number of filtered logging events forwarded to a remote log server can be adaptively increased or decreased.
  • adaptive logging is provided in an on-line service linking multiple users over a network.
  • the online service can support any interactive service or program, including but not limited to, chat and multi-player gaming applications.
  • the network can be any public and/or proprietary network.
  • the on-line service includes an application server at a node in a network, such as, the Internet.
  • the application server includes at least one class logger, a node logger, and at least one local log cache.
  • the on-line service also includes a log server and a persistent log store.
  • the log server is coupled over the network to the application server.
  • a system administrator module includes an adaptive logging controller.
  • the adaptive logging controller is coupled over the network to the application server.
  • the adaptive logging controller enables one to set or change the initial logging level for each respective class logger and to set or change flush policy criteria for the node logger.
  • the initial logging level can be set to log all debug, statistical, and error information locally at a particular node.
  • the flush policy criteria can be set to flush the logged information only when 3 or more error messages or error logging events have been received in less than an hour. In this way, detailed logging information can be collected but if a user has a good gaming or chat experience (generating few or no error messages) the detailed information is discarded and does not hinder or waste the resources of the system log server or persistent log store. On the other hand, if the user experience is poor (generating more error messages), the flush policy criteria is met and the detailed logging information is forwarded to the log server and persistent log store. In this way, a system administrator can review the detailed log information in the persistent log store to troubleshoot and diagnosis problems. Further, the system administrator's burden is made easier as he or she is reviewing less irrelevant logging information from good gaming or chat experiences.
  • FIG. 1 is a diagram of an example on-line service environment that supports adaptive logging according to the present invention.
  • FIG. 2 is a diagram of an application server with adaptive logging according to one embodiment of the present invention.
  • FIGs. 3A and 3B are flowcharts of a routine for adaptive logging according to one embodiment of the present invention.
  • FIG. 4 is an example log message.
  • FIG. 5 is a table of example levels of log messages.
  • FIG. 6 is an example computer system and computer program product in which the present invention is implemented primarily in software. The present invention will now be described with reference to the accompanying drawings.
  • like reference numbers indicate identical or functionally similar elements. Additionally, the left-most digit(s) of a reference number identifies the drawing in which the reference number first appears.
  • the present invention provides a method, system, and computer program product for adaptive logging.
  • the present invention is described in terms of an on-line service, such as, a multi-player gaming and chat service on the Internet.
  • log event refers to any type of logging information or other information desired to be collected including, but not limited to, the example logging message shown in FIG. 4.
  • logging information include debug, statistical, and error information.
  • adaptive logging refers to any logging performed according to the present invention that involves an initial logging level and/or a flush policy criteria.
  • logging is "adaptive” in that an initial logging level used to filter logging events can be set or changed in response to logging activity.
  • the flush policy criteria used to trigger the flushing of the filtered logging events can be set or changed in response to logging activity. Further, the flush policy criteria can be set or changed independent of the initial logging level.
  • FIG. 1 shows an example network architecture 100 of an on-line service that supports adaptive logging according to the present invention.
  • Architecture
  • System administrator 150 includes an adaptive logging controller 155.
  • adaptive logging controller 155 allows a system administrator to set or change an initial logging level and to set or change flush policy criterion for forwarding local log information from an application server 120-140 to a persistent log store 115.
  • a system administrator can set the initial logging level and flush policy for each application server, individually, in a distributed fashion. In this way, the system administrator can tailor or tune the amount and type of logging information collected locally and forwarded from each application server 120-140 to log server 110 for storage in log store 115.
  • the initial logging level can be changed independent of the flush policy criteria.
  • the amount and type of information which is logged locally can be controlled independent of the criterion used to control the forwarding of the information to a persistent log store. This operation is described further with respect to FIGs. 2, 3 A, and 3B.
  • Network 160 interconnects log server 110, log store 115, application servers 120, 130, 140, and system administrator 150.
  • Log server 115 is also coupled to log server 110 through a local connection 117 (or through a link in network 160).
  • One or more users 170 are coupled through network 160 to any of application servers 120, 130 or 140.
  • Users 170 can be any type of end user device, including but not limited to, a personal computer, modem, telephone, television, set-top box, video game console, personal data assistant, or other terminal.
  • Each of the applications servers 120, 130, 140 and/or users 170 can execute one or more applications.
  • application server 130 can support one or more multi-player games. The functionality required to execute a game can be divided in any proportion between an application server and a user depending upon a particular gaming application and the available resources in application servers 120, 130, 140 and users 170.
  • Users 170 can connect to application server 130 to play an interactive multi -player game over network 160.
  • Network 160 can be any communication network (voice and/or data) or combination of networks including, but not limited to, the Internet.
  • Users 170 can match themselves or be matched automatically by a separate matchmaker server (not shown).
  • Users 170 can be coupled to one another through any communication link, including but not limited to, links over network 160. Links between users 170 can be client/server links through one or application servers 120, 130, 140. Peer-to-peer or direct links between users 170 can also be used.
  • Logging information also called logging messages, can be generated by the applications, servers, users, or any other network device.
  • This logging information can include different types or levels of logging information. These levels can be prioritized depending upon impactupon system performance, user experience or other criteria. For example, levels of statistical, debug and error logging information can be prioritized to range from a low priority to a high priority.
  • FIG. 4 shows an example logging message 400.
  • Logging message 400 includes four fields 402-408. Fields 402 and 404 are used to identify a log source.
  • Global universal identification field 402 contains a global identifier number (GUID).
  • Class field 404 identifies a particular class.
  • Log event level field 406 identifies the priority level of the logging message, e.g., Debug 9, a ninth level of debugging.
  • Log content field 408 contains logging information associated with the individual logging message 400.
  • log content field 408 can contain a text message "Service Problem" as shown in FIG. 4.
  • FIG. 5 shows an example table of 20 priority levels of logging information including statistical, debug and error logging information.
  • These example logging messages are illustrative and not intended to limit the present invention. In general, any type of logging message of fixed or variable length can be used in the present invention.
  • a special name space can be used for defining and filtering logging information according to a separate feature of the present invention
  • FIG. 2 is a more detailed diagram of application server 130 with adaptive logging according to one embodiment of the present invention.
  • Application server 130 includes client proxy 210, local log cache 215, property manager 230, class logger 240, node logger 250, and a name domain manager 260.
  • Client proxy 210 is software or logic used to communicate with a user 170 to support the interactive applications hosted or supported by application server 130.
  • Pieces of content 220 represent different functions in one or more active, interactive applications hosted or supported by application server 130.
  • An interactive application can include, but is not limited to, a multi-player matching service, game and/or chat program.
  • a multi-player matching service game and/or chat program.
  • an application written in an object-oriented (OO) programming language such as Java.
  • An OO language includes different functions or operations in classes.
  • the present invention is not intended to be so limited, however, and can be applied to any programming language including procedural or other non-OO languages.
  • a class logger 240 is assigned for each class of the pieces of content 220.
  • FIG. 2 only shows one class logger 240 for clarity. However, multiple class loggers 240 are used when multiple classes are involved.
  • Property manager 230 in response to commands from system administrator 150 defines which pieces of content 220 are active and assigns class loggers 240.
  • Class logger 240 receives and filters each logging event in a respective class. Class logger 240 then forwards the filtered logging events to local log cache 215.
  • Node logger 250 reviews logging events and determines whether a flush policy criteria is met.
  • Node logger 250 forwards the logging information stored in local log cache 215 to log server 110 when the flush policy criterion is met.
  • Name domain manager 260 is used to control the registration of different names in a speeial name space based on class names according to a further feature of the present invention.
  • FIGs. 3 A and 3B are flowcharts of a routine 300 for adaptive logging according to one embodiment of the present invention. Routine 300 includes steps 302- 380.
  • Steps 302 and 304 relate to the initialization of adaptive logging according to the present invention.
  • initial logging levels are set for each class.
  • Each class logger 240 is set to an initial respective logging level.
  • the initial logging levels can be the same or different for different class loggers 240 depending upon which levels of logging information need to be logged for a particular class.
  • a flush policy is set.
  • the node logger 250 is set to an initial flush policy criterion.
  • Application server 130 can perform these steps in response to commands received from adaptive logging controller 155 or can initialize based on default values. For example, a system administrator, through the adaptive logging policy controller 155, can set an initial logging level of class logger 240 to "Debug 1 " or the lowest priority level at which logging begins.
  • Node logger 250 can be set to flush if 3 or more error messages are received in less than one hour.
  • step 310 logging activity occurs.
  • the broken line between step 304 and 310 indicates this can be an asynchronous event depending upon when a piece of content 220 begins.
  • steps 320-380 are carried out in accordance with the initialization steps 302 and 304 performed earlier.
  • step 320 log events generated by a piece of content 220 are sent to class loggers 240.
  • Class loggers 240 filter the log events based on the initial logging levels set in step 302 (step 330).
  • Class loggers 240 forward all filtered log events which equal or exceed the initial logging level set in step 302 to a local log cache 215 (step 350).
  • class loggers 240 can forward the filtered log events to node logger 250 for review and storage in local log cache 215.
  • step 360 a check is made by node logger 250 to determine whether a flush policy criterion set in step 304 has been met. For example, an initial flush policy of three error messages within one hour might be set in step 304. Using this example, if node logger 250 determines that three or more error messages have been received in less than one hour in step 360, then node logger 250 flushes log cache 215 (step 380). In particular, the filtered log events stored locally in local log cache 215 are forwarded to log server 110. Log server 110 stores the filtered log event information in persistent log store 115.
  • node logger 250 determines that a flush policy criterion has not been met in step360, node logger 250 checks for a change in flush policy (step 362).
  • step 364 can be performed after step 362 as described above, or after any indication of a positive user experience or expiration of a time interval that occurs when a flush policy criterion has not been met.
  • FIG. 6 is an example computer system and computer program product in which the present invention is implemented primarily in software.
  • Routine 300 and each of its constituent steps 302-380 can be implemented primarily in hardware, firmware, software, and any combination thereof.
  • FIG.2 is a block diagram of an embodiment of the present invention implemented primarily in an application server 130 according to the present invention.
  • FIG. 6 is an example computer system 600 in which the present invention is implemented primarily in software.
  • FIG.6 An example of a computer system 600 is shown in FIG.6.
  • the computer system 600 represents any single or multi-processor computer. Single-threaded and multi-threaded computers can be used. Unified or distributed memory systems can be used.
  • the computer system 600 includes one or more processors, such as processor 604.
  • processors 604 can execute software implementing routine 300 as described above.
  • Each processor 604 is connected to a communication infrastructure 602 (e.g., a communications bus, cross-bar, or network).
  • a communication infrastructure 602 e.g., a communications bus, cross-bar, or network.
  • Computer system 600 also includes a main memory 608, preferably random access memory (RAM), and can also include a secondary memory 610.
  • main memory 608 preferably random access memory (RAM)
  • secondary memory 610 preferably random access memory (RAM)
  • the secondary memory 610 can include, for example, a hard disk drive 612 and/or a removable storage drive 614, representing a floppy disk drive, a magnetic tape drive, an optical disk drive, etc.
  • the removable storage drive 614 reads from and/or writes to a removable storage unit 618 in a well known manner.
  • Removable storage unit 618 represents a floppy disk, magnetic tape, optical disk, etc., which is read by and written to by removable storage drive 614.
  • the removable storage unit 618 includes a computer usable storage medium having stored therein computer software and/or data.
  • secondary memory 610 may include other means for allowing computer programs or other instructions to be loaded into computer system 600.
  • Such means can include, for example, a removable storage unit 622 and an interface 620.
  • Examples can include a program cartridge and cartridge interface (such as that found in video game devices), a removable memory chip (such as an EPROM, or PROM) and associated socket, and other removable storage units 622 and interfaces 620 which allow software and data to be transferred from the removable storage unit 622 to computer system 600.
  • Computer system 600 can also include a communications interface 624.
  • Communications interface 624 allows software and data to be transferred between computer system 600 and external devices via communications path 626.
  • Examples of communications interface 624 can include a modem, a network interface (such as Ethernet card), a communications port, etc.
  • Software and data transferred via communications interface 624 are in the form of signals which can be electronic, electromagnetic, optical or other signals capable of being received by communications interface 624, via communications path 626.
  • communications interface 624 provides a means by which computer system 600 can interface to a network such as the Internet.
  • the present invention can be implemented using software running (that is, executing) in an environment similar to that described above with respect to
  • FIG. 6 the term "computer program product” is used to generally refer to removable storage unit 618, a hard disk installed in hard disk drive 612, or a carrier wave carrying software over a communication path 626 (wireless link or cable) to communication interface 624.
  • a computer useable medium can include magnetic media, optical media, or other recordable media, or media that transmits a carrier wave.
  • Computer programs are stored in main memory 608 and/or secondary memory 610. Computer programs can also be received via communications interface 624. Such computer programs, when executed, enable the computer system 600 to perform the features of the present invention as discussed herein. In particular, the computer programs, when executed, enable the processor 604 to perform the features of the present invention. Accordingly, such computer programs represent controllers of the computer system 600.
  • the software may be stored in a computer program product and loaded into computer system 600 using removable storage drive 614, hard drive 612,or communications interface 624.
  • the computer program product may be downloaded to computer system 600 over communications path 626.
  • the control logic when executed by the one or more processors 604, causes the processor(s) 604 to perform the functions of the invention as described herein.
  • the invention is implemented primarily in firmware and/or hardware using, for example, hardware components such as application specific integrated circuits (ASICs).
  • ASICs application specific integrated circuits
  • a special name space can also be used to enable a system administrator to control the filtering of log events.
  • a special name space can be used to formulate a command that identifies the initial log level. For example, a command can be sent from adaptive policy controller 155 that identifies an initial log level as described above with respect to FIG. 5,
  • a command can identify a logging level using a refined name space based on the names of the classes (in other words, based on class names).
  • Name domain manager 260 manages registration (addition and deletion) of names in the refined name space.
  • the name space includes many or all of the class names in use in the pieces of content 220.
  • An asterisk or other symbol can be used to identify an open range of classes. For example, in the case of an on-line service, a command to set or change an initial logging level might be as follows:
  • company name can be any company name (i.e., Sony)
  • service name can be any service name (i.e., games jeopardy)
  • server name can be any application server name (i.e., Mpath server 1)
  • class 1 can be any class (i.e., automatching class representing matchmaking content).
  • the asterisk represents an open query that encompasses all other classes.
  • the initial logging level will be all logging events for classes associated with the command:

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Abstract

L'invention concerne un procédé, un système, et un produit de programme informatique, permettant une consignation adaptative d'événements. Le procédé consiste à filtrer les événements de consignation, à les stocker localement en fonction d'au moins un niveau initial de consignation, et à vider tous les événements stockés, dans un serveur de consignation d'événements, situé à distance, lorsque ces événements stockés répondent à un critère de police de vidage. Il est possible de régler ou de changer de manière adaptative le niveau initial de consignation et le critère de la police de vidage, à partir d'un site à distance. Le niveau initial de consignation détermine les niveaux de priorité des événements de consignation à filtrer et stocker dans un site local temporaire. La police de vidage détermine quand ces événements doivent être acheminés du site local vers le serveur de consignation, situé à distance, et stockage permanent des événements.
PCT/US2000/001623 1999-01-25 2000-01-27 Procede, systeme, et produit de programme informatique, destines a une consignation adaptative d'evenements WO2000047003A1 (fr)

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US23611199A 1999-01-25 1999-01-25
US09/236,111 1999-01-25

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