KR0134704B1 - Signal message exchanger - Google Patents

Abstract

The present invention relates to a process monitoring method of an operation management device in a signal relay switch, and in particular, the process generation number and generation time of each daemon process are stored in a database table, and the method of periodically monitoring the processors and the daemon process are abnormally performed. By monitoring in the manner of receiving a signal in case of death, it is possible to prevent the function stop due to the error of the main processes of the operation management device, thereby ensuring the reliability of the operation management system.

Description

Monitoring method of operation management device in signaling relay switch

1 is a process structure diagram of an operation management apparatus to which the present invention is applied;

2 is an explanatory diagram schematically illustrating a process monitoring method according to the present invention;

3 is an exemplary diagram of a database table created for the process monitoring method according to the present invention;

4 is a flowchart of a process monitoring method of a DPMB;

5 is a flowchart illustrating a DPMB process monitoring method of M-DPMB.

Explanation of symbols on the main parts of the drawings

11: SIS connection function unit 12: SMX-1 operation control function unit

13: system management function 14: database

15: operator connection function

16: Signal network management system interworking function

The present invention relates to a process monitoring method of an operation management device in a signaling relay switch. In particular, the method for storing process generation times and generation periods in a database table for each daemon process, and periodically monitoring the processes and daemon processes are abnormal. The present invention relates to a method for monitoring an operation management device process in a signaling relay switch that performs monitoring by receiving a signal when a person dies.

Common Channel Signaling No. (7) aims to deliver signaling and intelligent network services for control of a communication network. Among them, a signal point dedicated to signal message transmission is called a signal relay point, and in the system aspect, it is called a signal relay switch. Signaling Switch eXchange No.1 (SMX-1) satisfies three main requirements: function, reliability, and performance. It performs MTP (Message Transfer Point) protocol and general system functions required as signal relay switch. It is provided.

Operation Management Device SMX-1 collects and manages major data of the SMX-1 system, interfaces with the outside, real-time output of system data and interworking with SIGNOS (SIGnalling Network Operation System). In the system, it is represented by the operation management module.

The redundant structure of the operation management module allows two operation management modules in the SMX-1 system to be operated by another operation management module when the operation management module in service cannot perform its function due to some factor. It aims to minimize the ripple effect due to the failure of the management module.

The failure detection of the operation management module can be divided into the detection by the failure detection logic in the operation management module itself and the periodic polling of the GTMU (Global Test and Maintenance Unit) of the SMX-1 system. The process detection method belongs to the fault detection logic in the operation management module, and is responsible for the periodic failure detection of major processes in the operation management module among the self-sensing specifications and reporting to the SMX-1 system GTMU when a failure occurs. At this time, the main process will exist as a daemon process in the operation management system.

An object of the present invention is to give a monitoring function to the processes in charge of the main functions in the operation management module, thereby minimizing the impact on the operation management system due to the failure of the monitored processors or the death of the processor without cause. To provide a method for monitoring the operation management device process in the signaling relay switch.

In order to achieve the above object, the present invention provides an operation management apparatus including a SIS connection function unit, an SMX-1 operation control function unit, a system management function unit, a database, an operator connection function unit, and a signal network management system interworking function unit. A process monitoring method applied to the method, the method comprising: periodically determining whether a daemon process exists; A second step of removing old old processes if there are duplicate processes in the first step, and checking coefficients of a leaky-bucket if the processes do not exist; In the second step, if the coefficient of the leaky bucket is greater than or equal to a certain level, the third step is to report to the target GTMU to switch the operation management module. ; A fourth step of determining a monitoring cycle after checking a recent generation time of the corresponding process when receiving a status report from the dead process for an abnormal reason; If the monitoring cycle has elapsed in the fourth step, create a process and change the contents of the process monitoring table.If the monitoring cycle has not elapsed, check the Ricky-Bucket coefficient and report it to the target (GTMU) if it exceeds the reference value. Characterized in that it comprises a fifth step of performing the conversion.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 shows the configuration of the SMX-1 operation management apparatus process to which the present invention is applied.

The SIS (Subsystem Interconnection Subsystem) connection function unit 11 serves as a connection to the SMX-1 target system and performs a transmission and reception function including message formatting. In addition, it has the function of analyzing the messages received from the target system and distributing them to each function block.

The SMX-1 operation control function unit 12 is a function block for processing control commands to the SMX-1 system, including measurement and statistical processing functions that periodically collect measurement data from the target system and collect data. And SMX-1 operation management processing function block, system status data collection and management function block.

The system management function unit 13 includes a data management function block for storing and controlling the operation management system database and target system data, and a system management function block for monitoring the main processes of the operation management system.

The database 14 stores signal link and signal point related database tables, measurement data and status messages, and stores operation management system system related data to facilitate data related operations of the system, and signal network management system. To provide system data.

The operator connection function unit 14 outputs the system status change message in real time through the operation of the work area, the alarm terminal, and the printer, including the operator matching function.

SIGnaling Network Operations System (SIGNOS) interworking function unit 16 functions as an interface between the signaling relay switch and the signaling network management system, and performs related functions such as data transmission and command interpretation between the two systems.

Figure 2 schematically shows the overall flow of the process monitoring technique according to the present invention. The process management system daemon processes 21 that are subject to process monitoring are periodically monitored every two minutes from the Daemon Process Monitoring Block (DPMB) 22, and also for abnormal errors, the DPMB block. Send a signal to

Since the DPMB block 22 is in itself a daemon process, the same monitoring technique should be applied to this process as well. For this purpose, an M-DPMB (Monitoring DPMB) block 23 is present, and this process is generated every 5 minutes by the system CRON to monitor the existence of the DPMB block 23.

3 shows a database table created for the process monitoring technique according to the present invention.

Each item consists of process name, creation time, and number of successive creations.

The process name is represented by the name defined in the management system, and the creation time follows the time in the system. The number of successive generations is characterized by a leaky-bucket coefficient. If the regenerated process is operating normally for a defined time period, this count is reset. If a regenerated process dies without functioning within a given defined time, this count is incremented, and when a certain number of times is reached, the operation management module needs to be switched.

4 shows the process flow of the monitoring method of the Daemon Process Monitoring Block (DPMB). The process monitoring block (DPMB) monitors processes in two ways for the main processes in the operation management module.

First, it periodically monitors the daemon processes, and secondly, when the daemon processes die abnormally, it checks the status of the entire processes.

In the case of periodic monitoring of the state of a process, it is determined whether a daemon process exists (414), if a single process exists (414), it is determined to be normal (415), and if the process exists or does not exist, it is considered an abnormal state. do,

That is, if there are duplicate processes (416), for example, if two processes exist, the old process is determined to be killed (417) and the old process is killed (418, 419).

On the other hand, when the process does not exist (420), the case where the process continuously dies is monitored. Therefore, if the number of leaky-bucket (leaky-bucket) is checked (421) or more than a certain limit (422) to report to the target (GTMU) to switch the operation management module (423, 424) if it is below the reference value Create a process (425) and change the contents of the process monitoring table (426, 427).

If the process dies for an abnormal reason, the process reports to the DPMB block via the message queue (402). That is, a process that receives signals from the kernel (SIGSEGV, SIGBUS, SIGFPE, SIGILL .....) reports its status to the DPMB block via the message queue.

Accordingly, the DPMB block checks the latest generation time of the process (403), determines the monitoring cycle (404), creates a process if the monitoring cycle has elapsed (410), and changes the contents of the process monitoring table (426, 427). If the monitoring cycle has not elapsed, the leaky bucket coefficient is checked (405), and if it is above the reference value (406), it is reported to the target GTMU and the operation management module is switched (407).

5 is a flowchart illustrating a DPMB process monitoring method of the M-DPMB (Monitoring DPMB) block 23. Since the process monitoring block (DPMB) that monitors the daemon process also has the characteristics of a daemon process, Surveillance is required. Therefore, the M-DPMB (Monitoring DPMB) block performs the monitoring function for the DPMB block, and the monitoring method is the same as the periodic monitoring method of the process of FIG.

As described above, the present invention can prevent a function stop due to an error of major processes of the operation management apparatus. In terms of systems, this is a function that guarantees the reliability of the operation management system.

In addition, the process periodically monitors the existence of the main process until the transition request threshold is reached. If the process dies due to an unexpected error, the process is regenerated. If the same process is duplicated, the process is duplicated. By only having the latest process among them, it helps smooth performance of system functions.

Claims (2)

SIS connection function unit 11, SMX-1 operation control function unit 12, system management function unit 13, database 14, operator connection function unit 15 and the signal network management system interworking function unit 15 In the process monitoring method applied to the operation management device having a), First steps 413 and 414 periodically determining whether a daemon process is present; A second step (415 to 422) of checking old coefficients when the processes are duplicated in the first step, and checking coefficients of leaky-buckets when the processes do not exist; In the second step, if the coefficient of Ricky Bucket is greater than or equal to a certain level, a third step of reporting to the target GTMU is performed to switch the operation management module. 423 to 427); A fourth step (402 to 404) of determining a monitoring cycle after checking a recent generation time of the corresponding process when receiving a status report from the dead process for an abnormal reason; If the monitoring cycle has elapsed in step 4, create a process and change the contents of the process monitoring table.If the monitoring cycle has not elapsed, check the Ricky-Bucket coefficient and report it to the target (GTMU) if it exceeds the reference value. And a fifth step (405 to 409, 410 to 412) to perform the switching of the operation management apparatus process monitoring method in the signal relay switch. The method of claim 1, A process monitoring method of an operation management apparatus in a signaling relay switch, wherein the contents of a process monitoring table to be changed are a creation time and a leaky bucket coefficient.