JPH05252237A - Collection system for communication trace data - Google Patents

Abstract

PURPOSE:To provide the automatic dump system for trace data on the occurrence of a fault to a communication control process. CONSTITUTION:A communication control process 2 receives a request from a communication application program 1 to make communication with an opposite party station 6 and stores the communication content and the communication result to a trace common share memory 4 as trace information on every communication and issues a communication execution state signal 8. When a communication fault is detected on the communication with an opposite station, a fault occurrence signal 7 is issued. When the fault occurrence signal is received and the communication execute state signal is not received within a predetermined time, the communication monitor process 3 reads the trace information from the trace common share memory 4 and outputs the result to a dump file 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for collecting communication trace data, and more particularly to a method for automatically dumping trace data when a communication failure occurs.

[0002]

2. Description of the Related Art A conventional communication system, as shown in FIG. 2, is a communication application program 1 for performing communication work.
A communication control process 2 having a communication function, a trace memory 4 for recording communication trace information, a dump file 5 for outputting communication trace information, and a partner station 6 with which communication is performed. It consists of

Next, the operation will be described.

The communication application program 1 communicates with the partner station 6 through the communication control process 2.
During the communication work, the communication control process 2 records the communication content and the communication result in the trace memory 4 as needed. When the communication application program 1 abnormally terminates the communication work or when the communication application program 1 issues a communication trace dump file output command to the communication control process 2, the communication control process 2 changes the contents of the trace memory 4 Output to dump file 5.

[0005]

In the conventional communication trace data collection method described above, the dump file collection is triggered when the communication application program terminates abnormally, or the communication application program communicates with the communication control process. Since it was only when the trace dump file output command was issued, there was a drawback that the communication trace dump file could not be output when the communication control process itself became abnormal or when a communication error was detected.

[0006]

According to a first aspect of the present invention, there is provided a communication trace data collecting method in a computer system for transmitting / receiving data to / from a partner station via a communication line, wherein the partner is received in response to a request from a communication application program. Each time communication is performed with a station, the communication content and communication result are recorded as trace information in a pre-equipped trace shared memory, and a communication execution signal is issued to detect a communication error during communication with the partner station. A communication control unit that issues a generation signal, and pre-reads the trace information from the trace shared memory when the abnormality generation signal is received and when the communication execution signal is not received within a predetermined time And a communication monitoring means for outputting to a dump file.

[0007]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention.

In this embodiment, as shown in FIG. 1, a communication application program 1 for performing communication work, a communication control process 2 having a communication function, a communication monitoring process 3 for monitoring a communication state, and a communication trace. It comprises a shared trace memory 4 for recording information, a dump file 5 for outputting communication trace information, and a partner station 6 which is a partner of communication.

The communication control process 2 has a function of issuing an abnormality occurrence signal 7 to the communication monitoring process 3 when an abnormality occurs during communication, and a function for the communication monitoring process 3 each time data is transmitted and received. It has a function of issuing a signal 8 during communication execution.

Next, the operation will be described.

First, an operation example during normal communication will be described with reference to FIG. The communication application program 1 uses the communication function provided by the communication control process 2 to communicate with the partner station 6
Communicate with. The communication control process 2 records the communication content and communication result in the trace shared memory 4 as trace information each time communication is performed. In addition, the communication control process 2
The communication execution signal 8 is issued to the communication monitoring process 3 every time communication is performed. When the communication application program 1 finishes communication work or issues a communication trace dump file output command to the communication control process 2, the communication control process 2 reads the contents of the trace shared memory 4 and outputs it to the dump file 5. To do.

Next, when the communication control process 2 detects an abnormality while the communication control process 2 is communicating with the partner station 5 (for example, a line disconnection during transmission / reception), the communication monitoring process 3 is notified. The abnormality occurrence signal 7 is issued in response. Upon receiving the abnormality occurrence signal 7, the communication monitoring process 3 reads communication trace information from the trace shared memory 4 and outputs it to the dump file 5.

Next, the communication control process 2 issues a communication-in-progress signal 8 to the communication monitoring process 3 each time data is transmitted to or received from the partner station. The time interval of 8 is measured, and if the next communication execution signal 8 is not issued even after a lapse of a certain time or more, it is determined that the communication is not in progress, the communication trace information is read from the trace shared memory 4, and the dump file 5 is read. Output.

[0015]

As described above, according to the present invention, regardless of the state of the communication application program, when the communication monitoring process detects an abnormality in the communication control process or an abnormality in the communication control process, the communication trace information is displayed. Can be output to a dump file.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram showing an example of a conventional example.

[Explanation of symbols]

 1 communication application program 2 communication control process 3 communication monitoring process 4 trace memory 5 dump file 6 partner station 7 error signal 8 communication execution signal

Claims (1)

[Claims] 1. A communication trace data collection method in a computer system for transmitting / receiving data to / from a partner station via a communication line, each time communication is performed with the partner station in response to a request from a communication application program. A communication control unit that records the communication content and the communication result as trace information in a pre-provided trace shared memory and issues a signal during communication and issues an error occurrence signal when a communication error is detected during communication with the partner station, A communication monitoring unit that reads the trace information from the trace shared memory and outputs it to a dump file provided in advance when the abnormality occurrence signal is received and when the communication execution signal is not received within a predetermined time. A method for collecting communication trace data, characterized by being equipped with.