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Logging

What is it?​

The SAP BW Agent and SAP BW JORS services produce log files that record processing, communication, and configuration events. This page covers what each log contains, where it lives, how the agent rotates and archives logs, and how to control retention.

Log files at a glance​

FileWritten byContents
SAPBWLSAM.logSAP BW Agent serviceProcessing information, plus full configuration on service start or .ini change.
SAPBWLSAMTrace.logSAP BW Agent serviceCommunication trace messages between the agent and SMANetCom.
SAPBWJORS.logSAP BW JORS serviceJORS processing information.
SMASAPBWProxy.logSAP BW Agent serviceActivity of the query proxy that runs inside the agent.

Default log location: \<Output Directory>\SAP BW LSAM\Log\

note

The Output Directory is set during installation. For more information, refer to File Locations in the Concepts online help.

How rotation and archiving work​

When a log file reaches the configured maximum size (MaximumLogFileSize), the agent and JORS services move it into a daily archive folder.

  • Archive root: \<Output Directory>\SAP BW LSAM\Log\Archives\
  • Daily folder name: yyyy_mm_dd (Weekday). The weekday name is generated using the host's Regional Settings.
  • Archived file name: LogName StartTime - StopTime.log — for example, SAPBWLSAM 125816 - 135800.log for the time range 12:58:16 to 13:58:00.
info

The weekday in the folder name follows the host's Regional Settings:

2008_01_11 (Friday)

If the Regional Settings are set to French:

2008_01_11 (Vendredi)

Retention​

By default, the agent and JORS services retain 10 days of archived logs. Adjust this with ArchiveDaysToKeep in SAPBWLSAM.ini. For more information, refer to Debug Options.

caution

For service logs, the agent and JORS services do not purge an archive folder that contains files other than archived logs. Job output archives are different: the agent deletes each dated folder under JobOutput\Archives\ once it is older than ArchiveDaysToKeep, with everything in it.

Job-specific log files (JORS)​

For each job the agent runs, it creates one job log file in the JobOutput folder beside the Log folder. There is no spool file.

  • Job log file name: <process chain name>#<log ID>.log. Before the chain starts, the file is named with the SAM job ID and is renamed once the chain has a log ID.
  • Archive root: \<Output Directory>\SAP BW LSAM\JobOutput\Archives\
  • Daily folder name: yyyy_mm_dd (Weekday) — same convention as the agent log archives.

When each job completes, the agent immediately moves the files to the current daily archive folder.

FAQs​

Where are the live log files? At \<Output Directory>\SAP BW LSAM\Log\, set during installation.

How long are archived logs kept? By default, 10 days. Change this with ArchiveDaysToKeep in Debug Options.

Why aren't my old archive folders being deleted? For service logs, the agent only purges archive folders that contain archived log files. Job output archive folders are deleted with all their contents once they are older than ArchiveDaysToKeep.

Why does the weekday in the archive folder name look wrong? The agent uses the host's Regional Settings to generate the weekday name. Adjust the Regional Settings on the agent machine if you need a different language.