On Linux, you can enable tracing either through the Trace tab of the DataDirect ODBC Data Source Administrator for Linux (the Linux ODBC Administrator) or by directly modifying the [ODBC] section in the system information (odbc.ini) file.
To specify the path and name of the trace log file, type the path and name in the Trace File field or click Browse to select a log file. If no location is specified, the trace log resides in the working directory of the application you are using.
DataDirect ships an enhanced library to perform tracing. This library appears by default in the Trace Library field. If you want to use a custom library instead, type the path and name of the library in the Trace Library field or click Browse to select a library.
To enable tracing, select the Enable Tracing check box on the Trace tab of the Administrator. Clear the check box to disable tracing. Tracing continues until you disable it. Be sure to turn off tracing when you are finished reproducing the issue because tracing decreases the performance of your ODBC application.
After making changes on the Trace tab, click Apply for them to take effect.
The DataDirect enhanced tracing library gives you more control over tracing. See System
Information (odbc.ini) File for a complete discussion of how to configure enhanced tracing.