> ### Viewing compaction statistics

> You can review information regarding data compaction by looking in the output file you specified when setting up the compaction job.

> To access a job's output files:

> 1. From the Job History section of the job's summary page, click View Job History. The Job History page appears.
> 2. Submit the date range for your query. Jobs that ran during the time period appear at the bottom of the Job History page as shown:

> 3. Click the name of the job. In this example, the job is Mnthly_Compaction. The Job Status page appears:

> 4. Click the link of the `.out` file. The file displays in a log file viewer:

> The following information will help you navigate through the job output and error files:

> - Use the Show field to control how many database log file entries display at one time. The number entered into the Show field cannot be less than 10.
> - Use the Overlap field to control how many entries are repeated from screen to screen.
> - The value in the Overlap field cannot be more than the number in the Show field minus one. For example, if you show 30 entries, you can overlap only 29 or fewer of them.
> - Click Reload after changing the values in the Show field or Overlap field. If you do not reload, the viewer displays the previous values.
> - Click Go To to control which numbered entry in the log file the viewer begins its display with. For example, a value of 10 entered into the Go To field will begin the display from the tenth log file entry.
> Note: You must click Go To after entering a value in the Go To field, or the viewer will not update its display.

> - The default display of entries is in ascending order; choose Descending to change the display.
> - Click First to display the first x entries, where x is the value in the Show field.
> - Click Previous to display the previous x entries, where x is the value in the Show field.
> - Click Next to display the next x entries, where x is the value in the Show field.
> - Click Last to display the last x entries, where x is the value in the Show field.
> - To view additional log file entries without changing your current starting log file entry, leave the Go To field blank, change the value in the Show field, and click Reload.
> Note: Fathom considers a viewer that has been inactive for more than four hours "stale." Once a viewer becomes stale, Fathom releases ninety-five percent of any memory it holds. If you try to use a stale viewer, Fathom automatically reloads the file. Because additional resource activity might have occurred during the viewer's inactivity, the reloaded log file view might not match the previous log file view of that resource.
> Fathom considers a viewer that has been inactive for forty-eight hours "dead." Once a viewer dies, Fathom releases all of its memory. To return to the log file displayed in a dead view, you need to renavigate to it, even if you pinned up the view or saved a link to it before the viewer died.

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