The following log files location could help you to find-out issues and errors from your application 11i instance.
Database Tier Logs are
Alert Log File location:
$ORACLE_HOME/admin/$CONTEXT_NAME/bdump/alert_$SID.log
Trace file location:
$ORACLE_HOME/admin/SID_Hostname/udump
Application Tier Logs
Start/Stop script log files location:
$COMMON_TOP/admin/log/CONTEXT_NAME/
OPMN log file location
$ORACLE_HOME/opmn/logs/ipm.log
Apache, Jserv, JVM log files locations:
$IAS_ORACLE_HOME/Apache/Apache/logs/ssl_engine_log
$IAS_ORACLE_HOME/Apache/Apache/logs/ssl_request_log
$IAS_ORACLE_HOME/Apache/Apache/logs/access_log
$IAS_ORACLE_HOME/Apache/Apache/logs/error_log
$IAS_ORACLE_HOME/Apache/JServ/logs
Concurrent log file location:
$APPL_TOP/admin/PROD/log or $APPLLOG/$APPLCSF
Patch log file location:
$APPL_TOP/admin/PROD/log
Worker Log file location:
$APPL_TOP/admin/PROD/log
AutoConfig log files location:
Application Tier:
$APPL_TOP/admin/SID_Hostname/log//DDMMTime/adconfig.log
Database Tier:
$ORACLE_HOME/appsutil/log/SID_Hostname/DDMMTime/adconfig.log
Error log file location:
Application Tier:
$APPL_TOP/admin/PROD/log
Database Tier :
$ORACLE_HOME/appsutil/log/SID_Hostname
In Oracle Applications R12, the log files are located in $LOG_HOME (which translates to $INST_TOP/logs)
Below list of log file locations could be helpful for you:
Concurrent Reqeust related logs
$LOG_HOME/appl/conc - > location for concurrent requests log and out files
$LOG_HOME/appl/admin - > location for mid tier startup scripts log files
Apache Logs (10.1.3 Oracle Home which is equivalent to iAS Oracle Home - Apache, OC4J and OPMN)
$LOG_HOME/ora/10.1.3/Apache - > Location for Apache Error and Access log files
$LOG_HOME/ora/10.1.3/j2ee - > location for j2ee related log files
$LOG_HOME/ora/10.1.3/opmn - > location for opmn related log files
Forms & Reports related logs (10.1.2 Oracle home which is equivalent to 806 Oracle Home)
$LOG_HOME/ora/10.1.2/forms
$LOG_HOME/ora/10.1.2/reports
Startup/Shutdown Log files location:
$INST_TOP/apps/$CONTEXT_NAME/logs/appl/admin/log
Patch log files location:
$APPL_TOP/admin/$SID/log/
Clone and AutoConfig log files location in Oracle E-Business Suite Release 12
Logs for the adpreclone.pl are located:
On the database tier:
RDBMS $ORACLE_HOME/appsutil/log/< context >/StageDBTier_< timestamp >.log
On the application tier:
$INST_TOP/admin/log/StageAppsTier_< timestamp >.log
Where the logs for the admkappsutil.pl are located?
On the application tier:
$INST_TOP/admin/log/MakeAppsUtil_< timestamp >.log
Logs for the adcfgclone.pl are located:
On the database tier:
RDBMS $ORACLE_HOME/appsutil/log/< context >/ApplyDBTier_< timestamp >.log
On the application tier:
$INST_TOP/admin/log/ApplyAppsTier_< timestamp >.log
.
Logs for the adconfig are located:
On the database tier:
RDBMS $ORACLE_HOME/appsutil/log/< context >/< timestamp >/adconfig.log
RDBMS $ORACLE_HOME/appsutil/log/< context >/< timestamp >/NetServiceHandler.log
On the application tier:
$INST_TOP/admin/log/< timestamp >/adconfig.log
$INST_TOP/admin/log/< timestamp >/NetServiceHandler.log
