Start/notes.ini Parameters/Debug_Outfile

Debug_Outfile

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Parameter: Debug_Outfile
Short description: Redirects debug/console output to a specified file (for troubleshooting and HCL Support).

Profile

Parameter
Debug_Outfile
Category
Logging / Debug
Component
Server, Client
Available since
R6
Supported versions
9.0.1, 10.0, 11.0, 12.0, 14.0, 14.5
GUI equivalent
notes.ini only (no GUI)
Possible values
Absolute file path, e.g. D:\Domino\Data\IBM_TECHNICAL_SUPPORT\debug.log

Description

Debug_Outfile instructs Domino or Notes to additionally write all internal debug output – the combination of console text and output from enabled debug switches (DEBUG_*, Console_Log additions, NSD excerpts, etc.) – to a freely chosen file.
This parameter is primarily intended for in-depth error analysis and for providing logs to HCL Support. In normal operation it should not be active.

Example configuration

Debug_Outfile=D:\Domino\Data\IBM_TECHNICAL_SUPPORT\debug.log
DEBUG_THREADID=1

Notes & pitfalls

  • The file grows extremely fast depending on the enabled debug switches – monitor disk space.
  • Use only temporarily; remove again after analysis.
  • The path must be writable (Domino service account!).
  • With DEBUG_THREADID active, lines are enriched with PID/thread ID – practically required for multi-thread analysis.
  • HCL Support often provides precise instructions on which switches to set – do not enable everything "blindly".