Oracle Apps R12.2 Log Files Location

1. R12.2 Start/Stop Log Files:
$INST_TOP/logs/appl/admin/log
Logfiles for start/stop of services from $ADMIN_SCRIPTS_HOME

Here is an image representing EBS R12.2 Service control (start/stop) logs:
Green color boxes indicate the location of log files

2. Patching log files
a) Online patching files are located in on the non-editioned file system(fs_ne) under:
$NE_BASE/ EBSapps/log/adop/<adop_session_id>/<phase>_<date>_<time>/<context_name>/log

3. Log files for concurrent programs/managers
$NE_BASE/ inst/<CONTEXT_NAME>/logs/appl/conc/log
Output files for concurrent programs/managers
$NE_BASE/inst/<CONTEXT_NAME>/logs/appl/conc/out

Here is an image representing EBS R12.2 Non-Editioned file system Logs:

Patching Logfile location:

4. Cloning related Log files:

a) Pre-clone log files in the source instance

     I. Database Tier
$ORACLE_HOME/appsutil/log/$CONTEXT_NAME/(StageDBTier_MMDDHHMM.log)

    II. Application Tier
$INST_TOP/admin/log/ (StageAppsTier_MMDDHHMM.log)

b) Clone log files in target instance

    I. Database Tier
$ORACLE_HOME/appsutil/log/$CONTEXT_NAME/ApplyDBTier_<time>.log

    II. Apps Tier
$INST_TOP/admin/log/ApplyAppsTier_<time>.log

5. AutoConfig log file:
a) Autoconfig log location on application tier:
$INST_TOP/admin/log/$MMDDHHMM/adconfig.log

b) Autoconfig Log Location on Database tier:
$ORACLE_HOME/ appsutil/ log/ $CONTEXT_NAME/ <MMDDHHMM>/ *.log

6.  Installation Related Logs:

Four Phases of R12.2 installation
1) RapidWiz Configuration file saved in below locations:
$TMP/<MMDDHHMM>/conf_<SID>.txt
$INST_TOP/conf_<SID>.txt
<RDBMS ORACLE_HOME>/ appsutil/ conf_<SID>.txt

2) Pre-install system check logs:
$TMP/<MMDDHHMM>/<MMDDHHMM>.log
$TMP/dbPreInstCheck.xxxxx.log
$TMP/wtprechk.xxxx/wtprechk.xxxx.log
<Global Inventory>/logs/installActions<timestamp>.log

3) Database Tier logs:
a) Main installation logs:
RDBMS $ORACLE_HOME/ appsutil/ log/ $CONTEXT_NAME/ <MMDDHHMM>.log

b) ORACLE_HOME installation logs:
RDBMS $ORACLE_HOME/ temp/ $CONTEXT_NAME/ logs/ *.log
<Global Inventory>/logs/*.log

d) Application tier
Both primary(Run) and Secondary Edition (Patch) file systems will each contain these logs:
1. Main Installation logs:
$INST_TOP/logs/<MMDDHHMM>.log

2. FMW and OHS TechStack Installation/Patching logs:
$APPL_TOP/admin/$CONTEXT_NAME/log/*<Global Inventory>/logs/*.log

REPORT THIS AD

3.Forms Oracle Home installation logs:
$APPL_TOP/admin/$CONTEXT_NAME/log/*.log

Here is an image representing the R12.2 Installation logs,

6. Fusion Middleware (FMW_HOME) Log Files:

 a) Log files for OPMN and OHS processes: Below directory contains log files related OPMN process(opmn.log), OPMN Debug logs(debug.log), HTTP Transaction logs (access.log), security settings related logs.

$IAS_ORACLE_HOME/ instances/ <ohs_instance>/diagnostics/logs

b) Log files for weblogic node manager: Log file is generated by Node Manager and contains data for all domains that are controlled by Node Manager on a given physical machine.

$FMW_HOME/ wlserver_10.3/ common/ nodemanager/ nmHome1/ nodemanager.log

c) Log files for weblogic Oracle Management Service log file: Initial settings AdminServer and Domain level information is written in this log file.
$EBS_DOMAIN_HOME/sysman/log

d) Log files for server processes initiated through WebLogic: Stdout and stderr messages generated by the server instance (server instances like forms, oafm, oacore etc) at NOTICE severity level or higher are written by Weblogic Node Manager to the below directory.
$EBS_DOMAIN_HOME/ servers/ <server_name>/ logs/ <server_name>.out

Here is an image representing EBS R12.2 Fusion Middleware Log files: