JP2005100220A - Server device and its control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a server device for selectively providing a plurality of service quality levels for each client by a simple control and management operation. <P>SOLUTION: A resource occupancy value is calculated based on the resource load value of a resource configuring a server device to be monitored for each service and the priority order of a client, and preset processing is executed for each service based on the comparison result of the resource occupancy value and a threshold. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a server device and a control method thereof, and more particularly to a server device that provides a service in response to a service request from a client connected to a network and a control method thereof.

  FIG. 5 is a conceptual diagram of a server apparatus that provides a service in response to a service request from an information processing apparatus (client) such as a computer connected to a network.

  In response to a service request from a client connected to the network, a service processing unit of the server device generates a service process for each client using resources constituting the server device, and provides a service to each client.

  On the other hand, in order to maintain stable service provision in the server device, the load of resources constituting the server device is monitored, and the amount of information to be transferred is increased or decreased according to the magnitude of the load. Increasing or decreasing the number is known.

  For example, in Patent Document 1, the load status such as the number of waiting server processes and the frequency of arrival of requests from clients is monitored, and when it is determined that the load has increased, the total number of server processes is increased. If it is determined that the number of server processes has decreased, the total number of server processes is decreased.

  In Patent Document 2, the CPU usage rate of a computer, the number of disk I / Os, the number of page-in / out times, the number of swap-in / out times, the number of processes, the hit rate of the CPU cache, the hit rate of the disk cache, and the data transfer amount of the system bus Monitor the load such as the number of packets flowing through the network, the packet size, the number of collisions and the line usage rate, calculate the total load factor, and increase or decrease the amount of information to be transferred according to the fluctuation of the load factor doing.

In addition, an image forming apparatus represented by a multi-function machine (hereinafter abbreviated as MF machine) that provides a plurality of functions such as a copying function, a scanner function, a printer function, and a FAX function is connected to a network. When a plurality of types of jobs are executed in parallel in response to a job request from a client or an operating user, the usage status of resources shared by these functions is managed and executed with priority. It is known to perform additional allocation of shared resources for jobs (for example, Patent Document 3).
JP-A-6-314263 JP-A-10-91549 JP-A-11-205493

  In recent years, with an increase in processing capacity of server devices and an increase in network bandwidth, it is possible to selectively provide a plurality of service quality levels, such as providing a higher quality service to clients having a premium. Although it may be required, it is not sufficient to change the processing order of service requests that are in a waiting state, and it is necessary to control resources such as preferentially allocating resources that make up the server device to high priority clients. I came.

  However, in the control of the server devices in Patent Literature 1 and Patent Literature 2, in order to preferentially assign resources to clients with high priority, resource occupancy obtained from the resource load value of the resources constituting the server device for each client It is necessary to set a threshold value, the server device has a threshold management table, and a threshold setting operation is required. Therefore, the control in the server device becomes more complicated, and the management work of the server device becomes complicated.

  On the other hand, multi-functionalization of image forming apparatuses has progressed, and services are provided in response to various service requests from clients connected to a network by an MF machine incorporating a server apparatus. In facilities and business establishments where MF machines are installed, there are many cases where there is no manager who can perform server device management work.

  Therefore, in a facility or business place where there is no administrator, the client priority setting is not performed and the MF machine provides a plurality of service quality levels, which is also required for the MF machine of Patent Document 3. However, it was not used in practice.

  The present invention has been made in view of such a current situation, and an object of the present invention is to provide a server device that can selectively provide a plurality of service quality levels for each client by simple control and management work. To do.

  The object of the present invention can be achieved by the following constitution.

The invention according to claim 1 is a network connection unit for connecting to a network;
A service processing unit for providing a service;
A calculation unit for calculating a resource occupation value for each service;
A threshold storage unit that stores a threshold in advance;
A processing control unit that executes, for each service, a preset process based on a result of comparing the resource occupancy value and the threshold value, and provides a service in response to a service request from a client connected to the network In the server device,
A monitoring unit that monitors a resource load value of a resource constituting the server device for each service;
A priority determining unit for determining the priority of the client;
The calculation unit is a server device that calculates a resource occupation value based on a resource load value monitored by the monitoring unit and a priority determined by the priority determination unit.

The invention according to claim 2 includes a process setting unit that sets a process content to be executed by the process control unit,
The server apparatus according to claim 1, wherein the processing control unit executes the processing content set by the processing setting unit.

The invention according to claim 3 includes a monitoring target setting unit that sets a service to be monitored by the monitoring unit,
The server device according to claim 1, wherein the monitoring unit monitors a resource load value of a resource used by the service set by the monitoring target setting unit.

The invention according to claim 4 is a method of controlling a server device that provides a service in response to a service request from a client connected to a network,
A monitoring process for monitoring the resource load value of the resources constituting the server device for each service;
A priority determination step for determining the priority of the client;
A calculation step of calculating a resource occupancy value for each service based on the resource load value and the priority of the client;
A server apparatus control method comprising: a process control step of executing a preset process for each service based on a result of comparing the resource occupation value with a preset threshold value.

  According to the first or fourth aspect of the present invention, in the server device that provides a service in response to a service request from a client connected to the network, the priority order of the client and the resource load of the resources constituting the server device A resource occupancy value is calculated based on the value, and a preset process is executed for each service based on a result of comparing the resource occupancy value with a preset threshold value. In other words, since the priority of the client is taken into account in calculating the resource occupancy value, the resource occupancy value differs depending on the priority of the client even for services having the same resource load value. On the other hand, since the threshold value of the resource occupation value set for each service is in a preset state, the resources of the server device allocated substantially according to the priority of the client can be made different. Therefore, according to the first or fourth aspect of the present invention, a plurality of service quality levels can be set for each client by simple control and management work without setting a threshold value for each client or a threshold management table. It can be selectively provided.

  According to the second aspect of the present invention, the processing control unit has a processing setting unit that sets processing content to be executed by the processing control unit, and the processing control unit executes the processing content set by the processing setting unit. A quality of service level can be selectively provided for each client.

  According to the invention described in claim 3, since the service to be monitored is set and only the resource load value of the resource used by the service to be monitored is monitored, consumption of resources required for monitoring can be suppressed, and more We can provide high quality service.

  An example of a server device according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an image forming apparatus 1 (hereinafter, image forming apparatus) incorporating a server apparatus according to the present invention. 1, the image forming apparatus 1 includes a processing control unit 101, an image reading unit 102, an image forming unit 103, an operation display unit 104, an HDD 105, a memory 106, a storage unit 107, a service processing unit 108, a priority order determination unit 109, and a calculation. 110, a monitoring unit 111, a facsimile control unit 112, and a network control unit 113, each of which is connected by a system bus 114.

  Among these, the server device according to the present invention includes the processing control unit 101, the HDD 105, the memory 106, the storage unit 107, the service processing unit 108, the priority order determination unit 109, the calculation unit 110, and the monitoring unit 111. The network control unit 113.

  In the image forming apparatus 1, each unit indicated by reference numerals 101 to 113 is referred to as a resource.

  The processing control unit 101 includes a CPU (Central Processing Unit) (not shown) and the like, reads a program stored in the storage unit 107 into the memory 106, and centrally controls each unit according to the program. That is, the process control unit 101 executes various processes relating to image formation and network services, stores the processing results in the memory 106 and displays them on the operation display unit 104. Then, the processing result stored in the memory 106 is stored in a predetermined storage area inside the storage unit 107.

  The image reading unit 102 constitutes a so-called scanner by an exposure unit, a mirror unit, an imaging lens, a CCD image sensor (hereinafter simply referred to as a CCD), and a drive source thereof, and provides a function of reading a document image. The read original image is converted into digital data to be image data, which is written in a specific area of the memory 106. Further, the image reading unit 102 includes a document feeding device as necessary, and conveys a plurality of documents to be read to the scanner. Here, the image data includes not only image data such as graphics and photographs but also text data such as characters and symbols.

  The image forming unit 103 includes an image forming apparatus using an electrophotographic method or an inkjet method, and provides a function of printing image data written in a specific memory area on output paper. A finisher is provided as necessary, and sorting, stapling, punching, folding and the like of a plurality of output sheets that have been printed are performed.

  The HDD 105 is a secondary storage medium such as a hard disk drive (HDD) and provides a function of storing image data captured in the image forming apparatus 1 and compresses image data written in a specific memory area. In addition to accumulating, the accumulated image data is decompressed and written to a specific memory area.

  The memory 106 is composed of a RAM (Random Access Memory) or the like, and functions as a temporary storage area for image data and program data. For example, when transferring image data between various resources, it functions as a page memory, a band buffer memory, and a block memory, and a specific area is allocated to various resources. When the use of the memory to which various resources are allocated is finished, the data in the specific area is cleared so that the allocated area can be reassigned to other resources.

  The facsimile control unit 112 is connected to a public line network and provides a function of transmitting and receiving image data with a remote facsimile apparatus using the G3 / G4 protocol, and writing received image data in a specific memory area. Then, the image data written in the specific memory area is transmitted to the facsimile apparatus connected via the public network.

  The network control unit 113 functions as a network connection unit, is connected to a network such as a LAN (Local Area Network), and provides a transmission / reception function of image data and control data with a client on the LAN. Using a network protocol, print data such as PDL sent from a client or an image data file described in a format such as JPEG / TIFF / GIF is received, or image data written in a specific memory area is received. File it in a predetermined format and send it to the client.

  The operation display unit 104 is a pressure-sensitive (resistive film pressure type) touch panel in which display elements such as an LCD (Liquid Crystal Display) and EL (Electro Luminescence) and transparent electrodes are arranged in a grid pattern, numeric buttons, and various settings are switched. It is composed of various operation buttons such as function buttons, and accepts an operation such as a service request from a user, and displays the operation status of the image forming apparatus 1.

  In addition, the operation display unit 104 is a monitoring target setting unit that sets a service to be monitored by the monitoring unit 111, and a process executed by the processing control unit 101 based on the result of comparing the resource occupation value and the threshold value for each service. It also functions as a process setting unit for setting to. Details will be described later.

  The service processing unit 108 includes a CPU and the like, reads a program stored in the storage unit 107 into the memory 106, and responds to a service request from a client connected to the network or the operation display unit 104 according to the program. Using each resource, a service process is generated for each client to provide a service.

Specifically, the services provided by the service processing unit 108 include, for example, the following, and the resource occupancy value is calculated according to the degree of possibility that the server apparatus is attacked by a malicious third party. The coefficient s1 used for each is assigned. For example, WWW and PING have a large coefficient of s1 because there are many attack tools distributed on the Internet.
(1) Memory copy: A document image is read by the image reading unit 102, and image data stored in the HDD 105 is printed on output paper by the image forming unit 103. (S1 = 1.0)
(2) Network printing: A print language such as PDL transferred from a client is developed into image data, and is printed on output paper in the image forming unit 103. (S1 = 1.0)
(3) Facsimile transmission: Image data transmitted from a remote facsimile apparatus connected to the public network is stored in the HDD 105 or printed on output paper in the image forming unit 103. (S1 = 1.0)
(4) Facsimile reception: Image data read by the image reading unit 102 or stored in the HDD 105 is transmitted to a remote facsimile apparatus connected to the public line network. (S1 = 1.0)
(5) WWW (World Wide Web): HTML (Hyper Text) representing an operation state display screen and a setting screen so that a client (particularly an administrator) can display the operation state display and various settings of the image forming apparatus 1. A markup language (Generation Language) is generated and transmitted to the client using HTTP (Hyper Text Transfer Protocol), and the client displays a web page representing the operating state and setting screen of the image forming apparatus 1. (S1 = 1.2)
(6) Scan to FTP: The original image read by the image reading unit 102 is converted into a bitmap file, PDF (Portable Document Format), JPEG (Joint Photographic Coding Experts Group), JPEG2000, etc. ) To a predetermined computer on the network. (S1 = 1.0)
(7) Scan to e-mail: A document image read by the image reading unit 102 is transferred to a predetermined computer on the network using SMTP (Send Mail Transfer Protocol) or POP (Post Office Protocol) as an image data file. To do. (S1 = 1.0)
(8) Simple Network Management Protocol (SNMP): Monitors the state of network traffic and transmits it to the client, and manages the network control unit according to the command transmitted from the client. (S1 = 1.0)
(9) PING: Returns an echo command of ICMP (Internet Control Message Protocol) to the client. (S1 = 1.2)
The priority determination unit 109 is configured by a CPU or the like, reads a program stored in the storage unit 107 to the memory 106, determines the priority of a client who has made a service request according to the program, and corresponds to the priority The coefficient s2 is transmitted to the calculation unit 110. To determine the priority, for example, an item of priority is attached to the header part of the service request, the network address, the client name, the user name using the client is identified, and the network address, client name, user name and Reference is made to a priority table stored in the storage unit 107 in association with priorities. In the present embodiment, the client type is included in the service request, and the following coefficient s2 is assigned to each according to the client type.
(1) Administrator (s2 = 0.75)
(2) Premium (s2 = 0.8)
(3) Registration (s2 = 1.0)
(4) Unregistered (s2 = 1.2)
The monitoring unit 111 is configured by a CPU or the like, reads a program stored in the storage unit 107 to the memory 106, monitors a resource load value of a resource configuring the server device for each service according to the program, Send. Examples of the resource load value include the following.
(1) Service provision time: Elapsed time (seconds) from the creation of a service process in response to a service request from a client
(2) CPU usage rate (%)
(3) Memory usage rate (%)
(4) HDD usage rate (%)
The resource load value may be monitored using an existing system monitoring tool or the like, and the monitoring method is not particularly limited. The measurement interval and the measurement period are not particularly limited. Further, the monitoring unit 11 can save resource consumption by monitoring the resource load value only for the target service set in the operation display unit 104.

  The calculation unit 110 includes a CPU and the like, reads a program stored in the storage unit 107 into the memory 106, and determines various resource load values monitored by the monitoring unit 111 according to the program and a priority order determination unit 109. The resource occupation value is calculated based on the priority order. The resource occupancy value d is calculated by, for example, the following calculation formula.

s1: Use service priority coefficient s2: Client priority coefficient s3: Service provision time s4: CPU use rate s5: Memory use rate s6: HDD use rate In the above formula, the use service priority coefficient s1 and the client priority coefficient Since the response speed decreases logarithmically with respect to the increase in s2 and CPU usage rate s4, the weighting is made relatively large by multiplying by the logarithmic value. On the other hand, the service provision time s3, the memory usage rate s5, and the HDD usage rate s6 are multiplied by the values as they are, so that the weighting is relatively small.

  In addition, since the client's priority coefficient is multiplied, the resource occupancy value is lower for clients with higher priorities than for clients using the same level of resources. The same control as when a threshold value for performing display or the like is set high is possible.

The storage unit 107 includes a nonvolatile semiconductor memory such as an EEPROM (Electrically Erasable Programmable Read-Only Memory), and stores setting contents according to various programs and functions that can be executed by the image forming apparatus 1. The storage unit 107 stores, for example, the following contents.
(1) The content of the processing executed by the processing control unit 101 based on the result of comparing the resource occupation value and the threshold set in the operation display unit 104.
(2) A service to be monitored by the monitoring unit 111 set in the operation display unit 104.
(3) A threshold value of the resource occupation value when the process control unit 101 executes the process.
That is, the storage unit 107 also has functions as a processing content storage unit, a monitoring target storage unit, and a threshold storage unit.

  The operation display unit 104 that also functions as a monitoring target setting unit will be described with reference to FIG. FIG. 2 is a conceptual diagram illustrating an example of a monitoring target service setting screen displayed on the operation display unit 104.

  The monitoring target service setting screen includes a service name display unit 201 and a setting selection unit 202.

  The service name display unit 201 displays service names that can be monitored by the monitoring unit 111 among the services provided by the image forming apparatus 1. In the present embodiment, the service name display unit 201 displays WWW, Scan to FTP, and Scan to e. -Five types: mail, SNMP, and PING.

  The setting selection unit 202 displays, for each service displayed in the service name display unit 201, options for whether or not to be monitored as “ON” and “OFF”, and surrounds the options selected by the user. Like to do.

  The monitoring target service setting on the monitoring target service setting screen is performed by the user operating one of the options displayed on the option display unit 202 for each service displayed on the service name display unit 201 using a touch panel, a selection button, or the like. Choose by. The setting selected on the monitoring target service setting screen is stored in the storage unit 107 as monitoring target setting information.

  A similar screen may be displayed on a client via a network, and a service to be monitored by the monitoring unit 111 may be set in the client. In this case, the network control unit 113 that receives the monitoring target setting information that is set by the client and transmitted via the network functions as the monitoring target setting unit.

  The operation display unit 104 that also functions as a process setting unit will be described with reference to FIG. FIG. 3 is a conceptual diagram illustrating an example of a process setting screen displayed on the operation display unit 104.

  The process setting screen includes a service selection tab part 301, a process content display part 302, and a process selection setting part 303.

  The service selection tab unit 301 is a selection key for selecting a service to be set when the processing control unit 101 sets contents to be processed when the resource occupation value exceeds a threshold. The service selection tab section 301 displays the target service name for setting the processing content. In this embodiment, the service name that can be monitored in FIG. 3 is displayed. In FIG. For Scan to FTP and SNMP that have not been set, a double line indicating that processing contents cannot be set is displayed in the service name.

  In the service selection tab unit 301, the selection of the target service for setting the processing content is executed by the user touching the service name on the touch panel. In FIG. 3, WWW is selected, and a processing content setting screen for the WWW service is displayed.

  The processing content display unit 302 displays the content that the processing control unit 101 can execute when the resource occupancy value exceeds the threshold for the service selected in the service selection tab unit 301. In this embodiment, there are six types: “Ignore”, “Service Cancel”, “Print Related Information”, “Warning Message Display”, “Warning Sound”, and “Send Mail to Administrator”.

  “Ignore” continues to provide the service, and “Cancel service” immediately stops providing the service. “Warning message display” displays a warning message on the display operation unit 107 or the display screen of the client. The “warning sound” is generated by a buzzer (not shown) built in the image forming apparatus 1. “Send email to administrator” sends a warning message to the email address of the administrator registered in advance.

  “Print related information” prints information such as the date of occurrence, the user name of the client, the network address of the client, the provided service name, and the resource load value on the output sheet in the image forming unit 103. Generally, a person who intrudes into a server device with malicious intent often uses the technique of deleting the intrusion history etc. in order to conceal the evidence of server intrusion. If the resource occupancy value exceeds the threshold value, the situation is printed on the output sheet to deal with the disappearance of evidence and data loss, and at a later date, identify the cause of the failure, identify the intruder, etc. It becomes possible to utilize it.

  The process selection setting unit 303 displays options for whether or not to execute various process contents displayed on the process content display unit 302 as “ON” and “OFF”, and surrounds the options selected by the user. Like to do.

  The setting on the process setting screen is also set by the user operating the touch panel, the selection button, etc., as in the monitoring target service setting screen shown in FIG. The setting selected on the process setting screen is stored in the storage unit 107 as process setting information, and can also be set via a network.

  An example of the operation of the image forming apparatus 1 will be described with reference to FIG. FIG. 4 is a flowchart showing a service monitoring process that is executed by the process control unit 101 and executes a preset process for each service based on the result of comparing the resource occupation value and the threshold value. The service monitoring process will be described below with reference to FIG.

  In step S <b> 101, it is determined whether the service provided by the image forming apparatus 1 is a monitoring target by the monitoring unit 111 with reference to the monitoring target setting information set by the operation display unit 104. If it is determined that it is a monitoring target (step S101; YES), the process of step S102 is executed. If it is determined that it is not a monitoring target (step S101; NO), the process is terminated.

  In step S102, it is determined whether or not the service provided by the image forming apparatus 1 has been completed. Completion of the service is performed, for example, by detecting a service completion flag output from each resource or detecting a service receipt report transmitted from the client. If it is determined that the service is not completed (step S102; NO), the process of step S103 is executed. If it is determined that the service is completed (step S101; YES), the process is terminated.

  In step S103, the resource load value is detected by the monitoring unit 111, written in a specific area of the memory 106, and then transmitted to the calculation unit 110 (monitoring step).

  In step S104, the calculation unit 110 is provided with the resource load values s3 to s5 detected by the monitoring unit 111 in step 103, the coefficient s2 obtained based on the client priority determined in advance by the priority determination unit 109, The resource occupancy value is calculated by substituting the coefficient s1 obtained based on the service to be calculated into the mathematical formula (calculation step).

    In step S105, it is determined whether the resource occupancy value obtained in step S104 has exceeded a threshold value stored in advance in the storage unit 107. If it is determined that the resource occupancy value exceeds the threshold (step S105; YES), the process of step S106 is executed. If it is determined that the resource occupancy value does not exceed the threshold (step S105; NO), the process of step S102 is executed. Is done.

  In step S106, the process control unit 101 executes processes such as service stop and warning message display based on the process setting information set in the operation display unit 104 (process control step).

  In step S107, the process control unit 101 determines whether or not the process executed in step S106 is “service cancellation”. If it is determined that the service has been canceled (step S107; YES), the process is terminated because it is not necessary to monitor the service. If it is determined that the service has not been canceled (step S107; NO), the process of step S102 is performed. Executed.

  The calculation of the resource occupation value by the calculation unit 110 in step S104, the comparison between the resource occupation value and the threshold value in step S105, and the execution of the process in step S106 in FIG. 4 will be described using Table 1 below.

  Table 1 shows an example of the usage status of the image forming apparatus 1. The type of service used and its coefficient s1, the client name, the type of the client and its coefficient s2, the service providing time s3 (minute: second), and the CPU usage The rate s4 (%), the memory usage rate s5 (%), the HDD usage rate s6 (%), the resource occupancy value, the preset threshold value of the service, the status, and the content of the process to be executed It shows.

  The resource occupancy value in facsimile transmission to the registered user client A is 991.1, whereas the set threshold is 30, so the status is NG and the service is stopped.

  The Scan to FTP resource occupancy value for client B, which is an unregistered user, is 26.3, whereas the set threshold is 22, so the status is NG and the service is stopped.

  The resource occupancy value of Scan to FTP for client C, which is a premium user, is 17.5, the status is OK, and the service is continued.

  Here, s3 to s5 in Scan to FTP for the client B and the client C are the same value, but since the s2 is different between the client B and the client C, the resource occupation value is higher for the client C, which is a premium user. Calculated less. On the other hand, since the thresholds set for each service are the same, even if the resource load is the same, the service for client B, which is an unregistered user, is stopped, and the service for client C, which is a premium user, is continued. That is, it is possible to preferentially allocate resources to clients with high priority without changing the threshold setting.

  The resource occupancy value of Scan to FTP for the registered user client D is 20.2, the status is OK, and the service is continued. Although the CPU usage rate and the HDD usage rate are higher than those of the clients B and C, since the service use time is short, the resource occupation value is smaller than that of the clients B and C.

  The WWW resource occupancy value for the client E who is an administrator is 47.9, whereas the set threshold value is 50, so the status is OK and the service is continued.

  In addition, the description content in the said embodiment is a suitable example of the server apparatus which concerns on this invention, and is not limited to this.

  For example, in the present embodiment, for example, the threshold set for each service can be changed according to the usage environment of the server device. The threshold value is changed by, for example, rewriting a part of the storage contents of the EEPROM constituting the storage unit 107 to update data transmitted via the network.

  In addition, the image forming apparatus including the server device has been described as an example. However, not only the server device alone but also home appliances including the server device and printer information providing terminals (such as kiosk terminals) including the server device are connected to a network. The present invention can also be applied to various devices.

  Further, the object of the present invention is to supply a storage medium storing a software program for realizing the functions of the above-described embodiments to a system or apparatus, and the computer (CPU or MPU) of the system or apparatus is stored in the storage medium. Needless to say, this can also be achieved by reading and executing the program.

  In addition, the detailed configuration and detailed operation of each component configuring the server device can be changed as appropriate without departing from the spirit of the present invention.

1 is a block diagram showing a configuration of an image forming apparatus incorporating a server device according to the present invention. It is a conceptual diagram which shows an example of the monitoring target service setting screen displayed on the operation display part of FIG. It is a conceptual diagram which shows an example of the process setting screen displayed on the operation display part of FIG. It is a flowchart explaining the service monitoring process performed in an image processing apparatus. It is a conceptual diagram of a server device that provides a service in response to a service request from an information processing device (client) such as a computer connected to a network.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Image forming apparatus 101 Processing control part 102 Image reading part 103 Image forming part 104 Operation display part 105 HDD
106 Memory 107 Storage Unit 108 Service Processing Unit 109 Priority Order Determination Unit 110 Calculation Unit 111 Monitoring Unit 112 Facsimile Control Unit 113 Network Control Unit 2A, 2B, 2C Client N Network

Claims (4)

A network connection to connect to the network;
A service processing unit for providing a service;
A calculation unit for calculating a resource occupation value for each service;
A threshold storage unit that stores a threshold in advance;
A processing control unit that executes, for each service, a preset process based on a result of comparing the resource occupancy value and the threshold value, and provides a service in response to a service request from a client connected to the network In the server device,
A monitoring unit that monitors a resource load value of a resource constituting the server device for each service;
A priority determining unit for determining the priority of the client;
The server device, wherein the calculation unit calculates a resource occupancy value based on a resource load value monitored by the monitoring unit and a priority determined by the priority determination unit. A processing setting unit for setting the processing content to be executed by the processing control unit;
The server apparatus according to claim 1, wherein the processing control unit executes the processing content set by the processing setting unit. A monitoring target setting unit for setting a service to be monitored by the monitoring unit;
The server apparatus according to claim 1, wherein the monitoring unit monitors a resource load value of a resource used by the service set by the monitoring target setting unit. A method for controlling a server device that provides a service in response to a service request from a client connected to a network,
A monitoring process for monitoring the resource load value of the resources constituting the server device for each service;
A priority determination step for determining the priority of the client;
A calculation step of calculating a resource occupancy value for each service based on the resource load value and the priority of the client;
A control method for a server device, comprising: a process control step of executing a preset process for each service based on a result of comparing the resource occupation value with a preset threshold value.

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