Log File Statistics

Lines 1 to 3 contain a statistical evaluation of all actions executed by an instance. This statistic may differ from the issued entries especially if data has been truncated. The values provide details on successful actions and on errors that occurred during the execution of the instance.

Significance

Significance is a value that allows you to estimate the frequency of significant actions as well as errors and warnings. The significance value is considered when log files have to be deleted.

Significance is the total of all executed actions (e.g. the number of the InstallFileList commands) and errors and warnings over a specific period; significance is updated as soon as the instance has been executed.

A specified value is added to significance for each entry:

  • Error = 5
  • Warning = 2
  • a significant action = 1 (e.g. InstallFileList)
  • GPF (General Protection Failure) = 32
  • Date of creation = The significance value is reduced by the value 1 per day. This final significance is re-calculated during each analysis and is NOT written to the log file.

To be able to log the crash of an instance, a value of 32 (GPF) is entered at the beginning of the analysis. This value is maintained in the log until the instance is finished. Before finishing, the instance evaluates the log and regenerates the statistic.

  • Error: An action causes two errors and thus two warnings; when the analysis is finished, the instance updates the significance value from "significance 32" to "significance 10" (total of the errors 5 + 5. The warnings that were issued at the same time are not counted but reported in the "Warnings" entry with the number 2)
  • GPF: An instance was started and the log file was recreated. The significance has the value 32 during the execution of the instance. If the instance crashes the value 32 is logged anyway.  
  • Date of creation: The significance of a log file is 18; the log file is a week old. Thus, the final significance of the log file is 11.

Error

Total of the actions issued as errors in this log file.

Warning

Total of the entries issued as warnings in this log file.