JP2011258245A - Server device, start control method, and information processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a server device for preventing start processing from being affected by the defect of a service program.SOLUTION: A service initialization program 110, a service start monitoring program 120, and a maintenance program 130, which constitute a system start program, are mapped to a top root directory 100, and a service program 141, setting data 142, and a service management program 143 are mapped to a service root directory 140. Then, the programs and data are stored in a ROM 14. When a server device is started, the service initialization program 110, the service start monitoring program 120, and the maintenance program 130 are recorded in a memory area 200 to be a system start program execution environment in a RAM 15, so as to perform prescribed start processing. After the start, the service program 141, the setting data 142, and the service management program 143 are read out from the ROM 14 and recorded in a memory area 300 to be a service program execution environment in the RAM 15.

Description

  Embodiments described herein relate generally to a server device used in, for example, an IP (Internet Protocol) telephone system, an activation control method used in the server device, and an information processing device.

  In recent years, IP telephone systems have begun to spread. In this IP telephone system, for example, an IP telephone terminal is connected to an IP network including a LAN (Local Area Network) and the Internet, and at the same time, protocol conversion and data format conversion are performed in a call control server on the IP network. Voice communication is enabled between telephone terminals and between an IP telephone terminal and a general telephone network.

  By the way, the call control server is generally provided with a control unit using a microcomputer, and the control unit controls the operation of its own apparatus. The control unit includes a system activation program such as an OS (Operating System) on the control hardware, and operates the hardware unit by executing a service program as a communication control application program on the OS environment. It is configured.

JP 2000-207178 A

  By the way, in the above call control server, the system activation program and the service program are activated in the memory area that is the same program execution environment, and the malfunction of the service program affects the system activation program and the system activation processing, and the system activation becomes impossible. There is.

  An object of the present invention is to provide a server device, a startup control method, and an information processing device in which a malfunction of a service program does not affect startup processing.

  The server device according to the present embodiment is activated on the processing memory in the server device that is activated based on the activation program recorded in the processing memory and executes communication processing based on the service program recorded in the processing memory after activation. Storage means for storing a startup program in association with a directory for specifying a memory area serving as a program execution environment for starting the startup program, and storing a service program in association with a directory different from the program area of the startup program; Control by which the service program directory stored in the storage means is referred to after the activation by the program, the service program is read from the storage means based on the reference result, and is recorded in a memory area different from the activation program of the processing memory Means Those were Unishi.

The block diagram which shows the structure of one Embodiment of the IP telephone system with which the server apparatus of this invention is applied. The block diagram which shows the software structure of the call control server shown in the said FIG. The figure which shows the structure of the root directory path of the program handled by the embodiment. 5 is a flowchart showing a control processing procedure of a CPU for responding to an abnormality in a service program in the embodiment. FIG. 3 is a sequence diagram showing a communication connection procedure between an IP telephone terminal and an external terminal on the public network in the embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Here, an embodiment when the server device of the present invention is applied to a call control server of an IP telephone system will be described. FIG. 1 is a schematic configuration diagram of an IP telephone system according to an embodiment.

  This system has a LAN (Local Area Network) 1 for packet communication as an IP network. The LAN 1 is connected to IP telephone terminals T11 to T1i (i is a natural number). IP telephone terminals T11 to T1i have a call processing function and a media information processing function such as video.

  Further, gateways GW1 and GW2 are connected to the LAN1. The gateway GW1 connects the LAN1 and an IP public network IPN such as the Internet, and has a communication protocol and signal format conversion function between the LAN1 and the IP public network IPN. The gateway GW2 connects between the LAN1 and a public network PNW such as an analog telephone network, and has a communication protocol and signal format conversion function between the LAN1 and the public network PNW.

  The IP telephone terminals T11 to T1i and the gateways GW1 and GW2 are connected to the call control server SV via the LAN1. The call control server SV is connected between a plurality of IP telephone terminals T11 to T1i or between the IP telephone terminals T11 to T1i and the IP public network IPN and public network PNW, for example, SIP, Megaco, H.P. An exchange control function for establishing a session according to a predetermined protocol such as H.323 is provided. Then, voice communication is performed by transmitting and receiving RTP packets between the caller and callee telephone terminals using the established session.

  By the way, in the call control server SV, the system activation program and the service program are activated in the memory area that is the same program execution environment, and the malfunction of the service program affects the system activation program and the system activation, and the system activation may not be possible. is there. For example, if the service program 1 is updated and the shared library that is in the dependency relationship is also updated, the service program 2 that is activated when the system starts up also refers to the shared library, but the dependency relationship is not set correctly, and the service program If 2 is not updated, there is a case where the service program 2 does not start normally when the system is started, hangs up, and the system cannot be started. Or, if the service program includes an operation that rewrites the file referenced by the system startup program, the service file will be damaged due to a problem with the service program, and the system startup program will not start normally, indicating that the system cannot be started. There is a case.

  As an existing means for separating a memory area as a program execution environment, there is a virtualization technique, but virtualization software is necessary.

  Moreover, by starting in single user mode, the program to be started can be limited, but since it is a solution means after the system cannot be started, it cannot be prevented. In this case, the maintenance person must go to the site and use the recovery disk to restore the system or start the system with the rescue disk to switch to the backup program and restore the backup data.

  For this reason, a server apparatus and a startup control method are required in which a malfunction of the service program does not affect the startup process. Therefore, in the present embodiment, the call control server SV that executes the activation control method in which the malfunction of the service program does not affect the activation process is provided.

  The call control server SV includes an IP control unit 11, a media conversion unit 12, a CPU (Central Processing Unit) 13, a ROM (Read Only Memory) 14 as a database, and a RAM (Random Access Memory) 15 as a processing memory. It has. The IP control unit 11, the media conversion unit 12, and the CPU 13 are connected to each other via a data highway 16.

  The LAN 1 is connected to the IP control unit 11 as necessary. The IP control unit 11 performs interface processing with the connected LAN 1. The IP control unit 11 also exchanges various control information related to the interface processing with the CPU 13 via the data highway 15.

  A time switch 17 is connected to the media conversion unit 12. The media conversion unit 12 processes the control packet and voice packet received by the IP control unit 11, converts the packet into a PCM signal and outputs it to the time switch 17, and converts the PCM signal from the time switch 16 into a packet. And output to the IP control unit 11.

  The CPU 13 reads out various programs stored in the ROM 14, records them in the RAM 15, and performs processing based on the programs recorded in the RAM 15, whereby each of the IP control unit 11, the media conversion unit 12, and the time switch 17. Are collectively controlled to realize the operation as the call control server SV.

  FIG. 2 is a block diagram showing the configuration of programs stored in the ROM 14 and RAM 15.

  The various programs stored in the ROM 14 include a system startup program such as a general-purpose OS, and there are a plurality of service programs executed on the system startup program. The system startup program and the plurality of service programs are recorded by the CPU 13 in a memory area that is the same program execution environment of the RAM 15, and if an operation abnormality occurs in the service program, the operation abnormality is detected by the system. It will also affect the startup program. Therefore, means for recording the system activation program and the plurality of service programs in separate memory areas on the RAM 15 is used. By taking this measure, the service initialization program 110, the service activation monitoring program 120, the maintenance program 130, and the shared library 170 belonging to the system activation program are used as the top route for specifying the memory area 200 serving as the system activation program execution environment in the RAM 15. It is stored in the ROM 14 in association with the directory 100. Further, the service program 141 other than the system activation program, the setting data 142, the service management program 143, and the shared library 144 are stored in the ROM 14 in association with the service route directory 140 that specifies the memory area 300 serving as the service program execution environment in the RAM 15. Is done.

  The service initialization program 110 is a program for executing a known startup process. The service activation monitoring program 120 is a program for monitoring whether or not the service program 141 has been activated. The maintenance program 130 is a program for responding to an operation abnormality when an operation abnormality occurs in the service program 141. The shared library 170 is data indicating the startup procedure of each program.

  The service program 141 includes, for example, a program group for exchange processing and various program groups 1415 for executing communication management processing such as billing and communication history data management. The exchange processing program group includes a call processing terminal control program 1411, a call processing group control program 1412, a call processing service program 1413, and a media processing program 1414.

  The setting data 142 is data for setting the service program 141 in the memory area 300 of the RAM 15. The service management program 143 is a program for managing activation / termination of the service program 141. The shared library 144 is data for referring to which service program 1411 to 1415 is activated when a service request related to the exchange process occurs.

  Further, the ROM 14 stores a backup service root directory 150 and a factory default service route directory 160 that specify a memory area that is a program execution environment different from the memory areas 200 and 300 on the RAM 15. The service program 151, setting data 152, service management program 153, and shared library 154 corresponding to the backup service root directory 150 are the service program 141, setting data 142, service management program 143, and shared library corresponding to the service root directory 140. 144.

  When the CPU 13 reads the service initialization program 110, the service activation monitoring program 120, the maintenance program 130, and the shared memory 170 corresponding to the top root directory 100 of the ROM 14 and records them in the memory area 200 of the RAM 15, the service initialization process 210, A service activation monitoring process 220, a maintenance process 230 and a shared library 270 are generated in the memory area 200.

  The CPU 13 reads the service program 141, the setting data 142, the service management program 143, and the shared library 144 corresponding to the service route directory 140 of the ROM 14 and records them in the memory area 300 of the RAM 15. 320 and the shared library 330 are generated in the memory area 300.

Next, the operation in the above configuration will be described.
First, when the system activation program and the service program stored in the ROM 14 are associated with a directory, for example, the user of the IP telephone terminal T12 functioning as a maintenance terminal operates the IP telephone terminal T12 to set a path for each program.

  Here, FIG. 3 is a diagram showing a path setting structure of each program. The user of the IP telephone terminal T12 registers “/” in the top root directory 100 in the ROM. Also, “/ lib” is registered for the shared library 170 belonging to the top root directory 100. Furthermore, “/ current / usr / bin / call process” is registered in the call processing service program 1413 of the service program 141 belonging to the service route directory 140.

  When a power switch (not shown) is turned on and power supply from a power supply unit (not shown) is started, the CPU 13 starts control processing.

  FIG. 4 is a flowchart showing the control process of the CPU 13. When this control process is started, the CPU 13 first activates the OS (step ST4a), and then refers to the shared library 170 in the ROM 14 to execute the service activation program 110 and the service activation monitoring program 120 in the RAM 15 system activation program. It is started up on the memory area 200 as an environment (step ST4b). Then, the service initialization process 210 and the service activation monitoring process 220 are generated in the memory area 200 (step ST4c). Here, starting the program on the memory area means that the CPU 13 reads the program from the ROM 14 and records the program in the memory area of the RAM 15.

  Subsequently, the CPU 13 increments the service program activation failure frequency 240 to “+1” in the service activation monitoring process 220 (step ST4d), and determines whether or not the service program activation failure frequency 240 exceeds the upper limit value. (Step ST4e).

  Here, since the upper limit is not exceeded (Yes), the CPU 13 designates the service root directory 140 in the service initialization process 210 and starts the service management program 143 subordinate to the service root directory 140 on the memory area 300. (Step ST4f). Then, the service management program 143 is activated in the memory area 300 by the service management program 143 to generate the service management process 320 and the service process 310 in the memory area 300 (step ST4g). Here, it is assumed that the path of the designated root directory is set by an environment variable and is changed by the maintenance program 230.

  Subsequently, the CPU 13 determines whether or not the service program 141 has been successfully activated (step ST4h). If the activation is successful (Yes), the CPU 13 notifies the service activation monitoring process 220 of a service activation success notification, and causes the service activation monitoring process 220 to decrement the service program activation failure count 340 to “−1” (step) ST4i).

  On the other hand, when the service program 141 has failed to start (No), the service process 310 executes a system reset, or the service start monitoring process 220 determines that the service program 141 has failed to start and restarts the system (step ST4j).

  On the other hand, when the system reset frequently occurs in step ST4e and the service activation failure count 240 exceeds the upper limit value, the CPU 13 reads the maintenance program 130 from the ROM 14 in the service initialization process 210 and the system activation program area 200 of the RAM 15. The maintenance process 230 is generated in the memory area 200 (step ST4k). As a system recovery method, the maintenance process 230 sends a recovery response message indicating that setting data switching or service route directory switching is to the IP telephone terminal T21 to display an OSD (On Screen Display).

  In this state, it is assumed that the maintenance person inputs a selection instruction at the IP telephone terminal T12 to select setting data switching. Then, the CPU 13 proceeds from step ST4l to step ST4m, and overwrites the setting data with the backup setting data in the maintenance process 330 here.

  On the other hand, when the maintenance person selects the root directory switching, the CPU 13 designates a root directory for specifying a memory area serving as a program execution environment different from the memory area 300 in the maintenance process 330 (step ST4n), and then in the ROM 14 The environment variable of the root directory path of the service program 141 is changed to the designated path (step ST4o). That is, the root directory path “/ current / usr / bin / call process” of the call processing service program 1413 in which a problem has occurred is changed to “/ xxxx / usr / bin / call process”. Note that “xxxx” specifies a memory area serving as a program execution environment different from the memory areas 200 and 300 of the RAM 15 and is predetermined by the maintenance program 130.

  Then, the CPU 13 resets the service program activation failure count 240 (step ST4p), shifts to the process of step ST4j, and executes system restart.

  Next, an example in which communication connection is performed between the IP telephone terminal T11 and the telephone terminal TT2 on the public network PNW will be described.

FIG. 5 is a sequence diagram showing a procedure for performing communication connection.
Now, for example, it is assumed that a user performs a call operation from the IP telephone terminal T11 to another external terminal TT2 at the IP telephone terminal T11 (FIG. 5 (1)). Then, the off-hook operation at the IP telephone terminal T11 is analyzed by the IP control unit 11 of the call control server SV and transferred to the CPU 13 from the IP control unit 11 via the data highway 16 as an off-hook signal.

  When this off-hook signal is transferred, the CPU 13 activates a service program 141 necessary for processing by the shared library 330 generated in the memory area 300. Here, since it is an off-hook signal for IP telephone terminal T11, call processing terminal program 1411 is started, and terminal processing for IP telephone terminal T11 is executed by this program.

  In the call processing terminal program 1411, for example, a signal for transmitting a dial tone is transferred from the CPU 13 to the IP telephone terminal T 11 that makes a call to the time switch 17. Further, a control signal for permitting acceptance of the dial signal is transferred from the CPU 13 to the IP control unit 11. The IP control unit 11 sends a dial tone from the time switch 17 to the IP telephone terminal T11 that is the transmission source, and thereafter receives a dial signal from the IP telephone terminal T11.

  In this state, when the user of the IP telephone terminal T11 who has confirmed the dial tone performs a dial operation, the dial signal is transferred to the CPU 13 via the IP control unit 11 and the data highway 16.

  Then, the CPU 13 analyzes the call destination from the dial signal and finds that the call destination is the public network PNW. Then, the call processing service control program 1413 is activated by the shared library 330 generated in the memory area 300. The Then, a call message addressed to the public network PNW is generated by the call processing service control program 1413 and transferred to the IP control unit 11. Then, the IP control unit 11 transmits an outgoing message addressed to the public network PNW to the public network PNW via the LAN 1 and the gateway GW2 (FIG. 5 (2)).

  Then, the incoming call destination external terminal TT2 is called (FIG. 5 (3)). When the external terminal TT2 responds to the call (FIG. 5 (4)), the CPU 13 of the call control server SV executes a process for connecting a communication path between the caller IP telephone terminal T11 and the gateway GW2. (FIG. 5 (5)). Thus, the user of the IP terminal T11 can perform voice communication with the user of the external terminal TT2.

  If group processing of the IP telephone terminal T11 is necessary during the activation of the call processing terminal program 1411, the call processing terminal program 1411 requests the call processing group processing program 1412 to perform processing via the shared library 330. The When the IP telephone terminals T11 and T13 need to be interconnected, the call processing terminal program 1411 requests the call processing service control program 1413 via the shared library 330. Further, when media processing such as image transmission is necessary, the media processing program 1414 is activated by the shared library 330.

  As described above, in the above embodiment, the service initialization program 110, the service activation monitoring program 120, and the maintenance program 130 constituting the system activation program are associated with the top root directory 100, and the service program 141, the setting data 142, and the service management program are associated with each other. By storing 143 in the ROM 14 in association with the service root directory 140, the service initialization program 110, the service activation monitoring program 120, and the maintenance program 130 are recorded in the memory area 200 of the RAM 15 at the time of activation and predetermined activation processing is performed. Are executed, the service program 141, the setting data 142, and the service management program 143 are read from the ROM 14 after the startup, and the startup program of the RAM 15 is It is recorded in the memory area 300 so that the communication processing in accordance with the service program is executed consisting.

  Therefore, it is possible to prevent the malfunction of the service program 141 from affecting the activation process.

  Further, in the above embodiment, when a notification of normal startup completion is not received from the service program 141 after a certain period of time has elapsed since the service program 141 was started, it is automatically determined that the service program 141 is operating abnormally and restarting is performed. Done. Accordingly, there is no concern that an abnormal operation of the service program 141 will spread to the startup process, thereby preventing the occurrence of system down.

  In the above embodiment, even when system resets caused by the service program 141 occur frequently, only the maintenance program 130 can be activated, and information indicating the occurrence of an abnormality is transferred to the maintenance person's IP telephone terminal T12 for maintenance. The person is notified. For this reason, the maintenance person can immediately know that the abnormality of the service program has occurred, and thus, it is possible to quickly take a countermeasure such as a recovery operation.

  Further, in the above-described embodiment, after notifying the occurrence of an abnormality, switching to backup setting data and changing the service program directory to a specified directory are executed in accordance with an instruction input from the maintenance person.

  Therefore, a failure analysis of the service program 141, switching to a backup program, and restoration of backup data can be performed, so that a rescue disk becomes unnecessary.

(Other embodiments)
For example, in each of the above embodiments, the call control server of the IP telephone system has been described as an example. However, an information processing apparatus such as a personal computer, a system including a CPU and a general-purpose OS may be used.

  Even in this other embodiment, the startup program and the service program are stored in the database in association with different directories so that the startup program is recorded in the corresponding program area of the processing memory at startup. A predetermined start process is executed, the service program is read from the database after the start and recorded in a program area different from the start program of the processing memory, and the communication process is executed according to the service program. Can prevent the startup process from affecting the startup process.

  In addition, the call control server configuration, the software configuration, the directory registration procedure for each program, the control processing procedure for dealing with abnormal operation of the service program and its contents, etc., can be variously modified without departing from the scope of the invention. Can be implemented.

  DESCRIPTION OF SYMBOLS 1 ... LAN, 11 ... IP control part, 12 ... Media conversion part, 13 ... CPU, 14 ... ROM, 15 ... RAM, 16 ... Data highway, 17 ... Time switch, 110 ... Service initialization program, 120 ... Service start monitoring 130, maintenance program, 140, service route directory, 141, service program, 142, setting data, 143, service management program, 144, shared library, 200, 300, memory area, SV, call control server, T11 to T1i ... IP telephone terminal, GW1, GW2 ... Gateway, PNW ... Public network.

Claims (18)

A communication processing unit that starts up based on a startup program recorded in the processing memory, and executes communication processing based on a service program recorded in the processing memory after startup;
The startup program is stored in association with a first directory that specifies a first memory area that is a program execution environment for starting up the startup program on the processing memory, and the service program is stored in the first of the startup program. Storage means for storing a second memory area different from the first memory area in association with a second directory;
After activation by the activation program, the second directory of the service program stored in the storage unit is referred to, and based on the reference result, the service program is read from the storage unit, and the processing memory A server device comprising: control means for recording in a second memory area different from the startup program.   The server device according to claim 1, wherein the control unit performs a restart when a normal start completion notification is not received from the service program after a predetermined time has elapsed since the start of the service program.   The control means increments the number of activation failures before starting the service program, and when a normal activation completion notification is received from the service program after a predetermined time has elapsed since the service program was activated, The server device according to claim 1, wherein the startup failure count is decremented. The storage means stores a maintenance program for dealing with an operation abnormality of the service program in association with the first directory;
The control means starts the maintenance program on the first memory area of the processing memory when the number of activation failures exceeds a predetermined number of times, and generates an abnormality based on the maintenance program. The server device according to claim 3, which notifies the outside. The storage means specifies backup setting data for the service program in a third memory area that is different from the first memory area and the second memory area as a program execution environment for the startup program and the service program. And a backup of the service program is stored in association with a fourth directory that specifies a fourth memory area different from the first, second and third memory areas,
After notifying the occurrence of the abnormality, the control means switches to backup setting data in response to a user instruction input, and changes the directory of the service program to the fourth directory that is a backup of the service program. The server device according to claim 4 which performs.   The service program includes at least one of a call processing terminal control program, a call processing group control program, a call processing service program, a media processing program, a program for executing charging, and a program for executing communication management processing. The server device according to claim 1. In the startup control method used in the server device,
Starts based on a startup program recorded in the processing memory, executes communication processing based on a service program recorded in the processing memory after startup,
The startup program is stored in a database in association with a first directory that specifies a first memory area serving as a program execution environment for starting the startup program on the processing memory, and the service program is stored in the startup program. Storing the second memory area different from the first memory area in the database in association with the second directory that specifies the second memory area,
After the activation by the activation program, the second directory of the service program stored in the database is referred to, the service program is read from the database based on the reference result, and the activation program of the processing memory is read Activation control method for recording in a second memory area different from the above.   The start control method according to claim 7, further comprising restarting when a normal start completion notification cannot be received from the service program after a predetermined time has elapsed since the start of the service program.   Further, before starting the service program, the number of start failures is incremented, and when a normal start completion notification is received from the service program after a predetermined time has elapsed since the start of the service program, the start failure The activation control method according to claim 7, wherein the number of times is decremented. The storing stores a maintenance program in the database in association with the operation abnormality of the service program in association with the first directory;
Furthermore, when the number of activation failures exceeds a predetermined number, the maintenance program is activated on the first memory area of the processing memory, and an abnormality occurrence is notified to the outside based on the maintenance program The start control method according to claim 9. The storing specifies backup setting data for the service program in a third memory area different from the first memory area and the second memory area as a program execution environment of the startup program and the service program. Store in the database in association with a third directory, and associate the backup of the service program with a fourth directory that identifies a fourth memory area different from the first, second and third memory areas Remember,
Further, after notifying the occurrence of the abnormality, switching to backup setting data in accordance with a user's instruction input, and changing the directory of the service program to the fourth directory that is a backup of the service program is executed. The activation control method according to claim 10.   The service program includes at least one of a call processing terminal control program, a call processing group control program, a call processing service program, a media processing program, a program for executing charging, and a program for executing communication management processing. The activation control method according to claim 7. A communication processing unit that starts up based on a startup program recorded in the processing memory, and executes communication processing based on a service program recorded in the processing memory after startup;
The startup program is stored in association with a first directory that specifies a first memory area that is a program execution environment for starting up the startup program on the processing memory, and the service program is stored in the first of the startup program. Storage means for storing a second memory area different from the first memory area in association with a second directory;
After activation by the activation program, the second directory of the service program stored in the storage unit is referred to, and based on the reference result, the service program is read from the storage unit, and the processing memory An information processing apparatus comprising: control means for recording in a second memory area different from the activation program.   The information processing apparatus according to claim 13, wherein the control unit performs a restart when a normal start completion notification is not received from the service program after a predetermined time has elapsed since the start of the service program.   The control means increments the number of activation failures before starting the service program, and when a normal activation completion notification is received from the service program after a predetermined time has elapsed since the service program was activated, The information processing apparatus according to claim 13, wherein the number of activation failures is decremented. The storage means stores a maintenance program for dealing with an operation abnormality of the service program in association with the first directory;
The control means starts the maintenance program on the first memory area of the processing memory when the number of activation failures exceeds a predetermined number of times, and generates an abnormality based on the maintenance program. The information processing apparatus according to claim 15, which notifies the outside. The storage means specifies backup setting data for the service program in a third memory area that is different from the first memory area and the second memory area as a program execution environment for the startup program and the service program. And a backup of the service program is stored in association with a fourth directory that specifies a fourth memory area different from the first, second and third memory areas,
After notifying the occurrence of the abnormality, the control means switches to backup setting data in response to a user instruction input, and changes the directory of the service program to the fourth directory that is a backup of the service program. The information processing apparatus according to claim 16, wherein:   The service program includes at least one of a call processing terminal control program, a call processing group control program, a call processing service program, a media processing program, a program for executing charging, and a program for executing communication management processing. The information processing apparatus according to claim 13.

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