You can choose to either use the default bookmark named Fathom_Bookmark or define a new bookmark. If you define a new bookmark, the value you enter is not restricted to a certain length. However, for practical purposes, you might want to consider keeping it a reasonable length.

Additionally, you can choose to prepend a time stamp to your bookmark name selection. You should always select this option. The date and time value uniquely qualifies each bookmark that has this data prepended to its bookmark name. In situations where the log file monitor must reposition itself within the log file, this type of bookmark will always be found.

This option records the last line of a given poll as a bookmark internally (Unlike the custom bookmark, this information is not written in the log file being monitored.)

Choosing this option indicates that you want to use the last line as the bookmark. The last line is referenced as it is randomly defined in the file, and it is likely that the line will not be unique. If your log file has a date and time stamp on each line, or other data that makes each line unique, select the Each line unique option. This refinement will increase the log file monitor's accuracy.

If you do not use the Each line unique option, you must specify one of the possible two Truncate Action selections from the drop-down list.