JP2564978B2 - Communication control program trace data collection method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention collects trace data of a communication control program operating on a host communication processing program by a communication management program operating on a host, and stores it in an external file on the host. The present invention relates to a trace data collection method for a communication control program in a stored online system.

[Prior Art] Conventionally, when a communication management program running on a host collects various trace data collected by a communication control program running on a front-end communication processing device, a trace sent from the communication control program As long as the resources of the communication management program are received, the data is held until it is written to the external file.

A slightly advanced communication management program discards subsequent trace data when the resources are used for a certain amount or more in consideration of the total amount of the resources of itself.

In this way, the resources of the communication management program are prevented from being overwhelmed by the trace data, and normal online control is guaranteed.

[Problems to be Solved by the Invention] The above-mentioned conventional communication management program operating on a host collects trace data of a communication control program operating on a pre-communication processing device and stores it in an external file on the host. In the trace data collection method of the communication control program in the online system, since no limit value is set for the received trace data, the resources of the communication management program are compressed by the trace data when the trace amount of the communication control program is large, and There is a risk that it may interfere with the online control, which is the responsibility of the company, and even cause a communication failure in some cases.

Even in the slightly advanced trace data collection method, communication failures will no longer occur due to consideration of finite resources, but since it is determined whether or not to discard at a fixed rate regardless of the trial form of resources, If the resources are used for more than the discard standard by the actual business data, all trace data of the communication control program, which is the original purpose, is unconditionally discarded.

As described above, in the conventional trace data collection method, resources are squeezed by the trace data of the communication control program and a communication failure occurs, or all trace data is discarded and the trace data is collected and written to an external file on the host. There is a drawback that you cannot do it.

It is an object of the present invention to provide a trace data collection method that eliminates the above-mentioned drawbacks.

[Means for Solving the Problems] In the trace data collection method of the communication control program according to the present invention, the communication management program operating on the host collects the trace data of the communication control program operating on the anterior communication treatment device to collect data from the host. In the online system stored in the above external file, trace data receiving means for receiving trace data from the communication control program, and trace for managing the trace data obtained from the trace data receiving means for each front communication processing device A data management table and a trace data discard judging means for judging whether to discard the received trace data or write it to an external file according to the amount of staying trace data in the communication management program, and a judgment to write to the external file by the trace data discard judging means Traced data Notifies the completion of writing writes the data to an external file containing the trace data writing means for controlling said trace data management table.

[Operation] The trace data of the communication control program is collected by the trace data receiving means by the communication management program operating on the host, and the trace data discarding judging means stores the data retention value preset in the trace data management table. Compare to determine whether to write or discard new received data,
If the request is writable, the request is notified to the trace data writing means. The trace data writing means writes the data in an external file (in some cases, queue waiting may be possible) in cooperation with the trace data management table. Further, the effect of the end of writing is fed back to the trace data management table and becomes effective for the subsequent operation of the trace data discarding judging means.

EXAMPLES Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is a flow chart for explaining the detailed operation of the trace data discarding judging means 2, and FIG. 3 is for explaining the operation of the trace data writing means 3. FIG. 4 is a diagram showing the detailed format of the trace data management table 4.

With reference to FIG. 1, one embodiment of the present invention includes a communication management program 5 operating on a host computer 7, a communication control program 6 operating on a front end communication processing device 8 and an external file 9 for storing trace data. It is configured.

Further, the communication management program 5 is the communication control program 6
Trace data receiving means 1 for receiving the trace data transmitted by the following, a trace data management table 4 for managing the trace data passed from the trace data receiving means 1 for each pre-communication processing device 8; Based on the data,
Trace data discarding judgment means 2 for judging to write to an external file if the number of staying trace data is less than a specified value, and discarding if it is more than a specified value, traces judged to be written to the external file 9 by the trace data disposal judging means 2 It is composed of the trace data writing means 3 for writing the data to the external file 9 and updating the trace data retention number of the trace data management table when the writing is completed.

Next, the operation of the present invention will be described with reference to FIGS.

Referring to steps 201 to 205 in FIG. 2, the trace data discarding judging means 2 judges the accumulated trace data amount judging process 201.
Then, based on the trace data management table 4, the current retention number 403 is compared with the specified value 402. If the staying number 403 is equal to or larger than the specified value 402, the process proceeds to the trace data discarding process 205, and the trace data passed now is discarded. If the staying number 403 is less than the specified value 402, the process proceeds to the trace data write determination process 202 to write this trace data in the external file 9. The trace data write determination processing 202 determines whether or not the file is currently being written by the write control flag 406 of the trace data management table 4, and if it is not writing, the process proceeds to the trace data write request processing 203. The trace data write request processing 203 requests the trace data write means 3 to write the main trace data. Judgment result If writing is currently in progress, trace data write wait registration processing 20
Go to 4. The trace data write wait registration processing 204 increments the stay trace data count 403 by 1 and registers this trace data in the stay trace data queue. The accumulated trace data queue is managed by the accumulated trace data head 404 and the accumulated trace data last 405 of the trace data management table 4.

Referring to steps 301 to 302 in FIG. 3, the trace data writing unit 3 writes the trace data to the external file 9 after the write control flag 406 of the trace data management table 4 is being written in the trace data writing process 301. In the trace data write completion processing 302, the accumulated trace data queue in the trace data management table 4 is referenced, and if there is trace data registered in the queue, one is removed from the head of the queue and the accumulated trace data number 403 is set to 1 Reduce. If it is not registered in the queue, the write control flag 406 of the trace data management table 4 is set to the non-writing state.

Referring to FIG. 4, the trace data management table 4 shows the communication control programs 401, stay trace data specified value 402, stay trace data number 403 indicating the current stay count, and stay trace data head for controlling the stay trace data queue.
It is composed of a 404, a stay trace data final 405, and a write control flag 406 for controlling the write state to the external file 9.

According to the present invention, in the online system, the communication management program operating on the host collects the trace data of the communication control program operating on the pre-communication processing device and stores it in the external file on the host. The amount of stay in the communication management program of the trace data of the communication control program is managed for each pre-communication processing device, and it is always held when the amount of stay is less than the specified value, independent of the total resource usage. Since the newly received trace data is discarded only when the value exceeds the value, it is possible to control normal business data without overwhelming the resources even when the trace data becomes large. Even if a large amount of data is being used, a certain amount of trace data can always be written to an external file, so The ability to collect trace data also has the effect of being useful for failure analysis, which occurs mainly when the load is high.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is a flow chart for explaining the detailed operation of the trace data discarding judging means 2, and FIG. 3 is a trace data writing means 3
4 is a flow chart for explaining the outline operation of FIG. 4, and FIG. 4 is a diagram showing a detailed format of the trace data management table 4. 1 to 4, 1 ... Trace data receiving means, 2 ... Trace data discard determining means, 3 ... Trace data writing means, 4
...... Trace data management table, 5 ... Communication management program, 6 ... Communication control program, 7 ... Host computer, 8 ... Front-end communication processing device, 9 ... External file.

Claims (1)

(57) [Claims] 1. An online system in which a communication management program operating on a host collects trace data of a communication control program operating on a pre-communication processing device and stores the trace data in an external file on the host. Trace data receiving means for receiving the trace data of, the trace data management table for managing the trace data obtained from the trace data receiving means for each pre-communication processing device, and the received trace data according to the amount of accumulated trace data in the communication management program Trace data discarding determining means for determining whether to discard or write to an external file, and write the trace data determined to be written to the external file by the trace data discarding determining means to the external file and notify the completion of writing and Trace data pipe A trace collection method for a communication control program, comprising: trace data writing means for controlling a scientific table.