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Operation

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If the files are not separated by date, when maintenance is performed, it searches the log file for records, deletes the records that are to be deleted, creates temporary files, and then deletes the original files and replaces them with the temporary files once it has confirmed that all the records have been saved successfully.

At this time, if the log file to be maintained is open by an external application, the maintenance work will be interrupted because the file cannot be deleted and will be retried at the next maintenance schedule.

Add date and time to file name

If you separate files by date, the maintenance process will delete the files for the target date. Since it only deletes files, the process is fast.

In addition, the decision as to whether or not to delete is made by extracting the date from the file name according to the following date format.

"%Y%m%d%H%M%S" "%Y%m%d%H%M" "%Y%m%d%H" "%Y%m%d" "%Y%m" "%Y"

If none of the above applies, the same processing as in the "Append tag value to file name" case below will be performed.

Append the tag value to the file name

It searches for all files that exist in the specified file path and deletes any files whose file names contain all the characters specified in the "\path\filename.extension" format and whose "file modification date and time" (OS attribute) is older than the specified period.

This is a fast process as it only involves deleting files.

Please note that if the log file is open using an external application, the maintenance process may be interrupted and carried over until the next maintenance period.

If the folder in which the log files to be maintained are stored contains files other than log files, please pay attention to the file names of those files.

If the file name or creation date matches the deletion conditions, unexpected files may be deleted. Therefore, we recommend that you create a folder for storing log files as a log-only folder and configure it separately from system and application folders.