The common precautions for multi and single processes are as follows:

• Do not edit the log file that has been output.
• Do not lock files by using a function such as the text editor.
• When setting the access rights for the output log file manually, assign the appropriate access rights.
• Do not change the update time of the log file that has been output.
• During trace output, do not delete log files or change file names. Delete the log files or change file names after stopping all the trace output processes.

The precautions to be taken when referencing multi processes compliant Hitachi Trace Common Library format log file are as follows:

• The line feed code at the end of the message is CRLF, regardless of the OS being used.
• In some cases you may need to delete the log files to enable changes in the log file size, number of files and mode options. Before deleting the log files, stop all the processes that output trace.
• Even if trace is output, there are cases when the update time of the log file is not updated. Therefore, you cannot judge whether the trace is output based on the updated time of the file.

The log files of the multi-process trace common library have been changed from the earlier versions. The following table describes the changes.

Table 5-16 Differences with the earlier versions of the multi-process trace common library

Legend:

--: Not applicable.

#

The end identifier used in the multi-process trace common library of the earlier versions is as follows:

 
EOF CRLF CRLF CRLF CRLF----------< End of Data >----------CRLF CRLF
 

EOF is the character (0x1A) that indicates the end of the trace data. CRLF indicates the linefeed (0x0D, 0x0A).

Table 5-17 List of change files for the multi-process trace common library format