Log file location in Oracle Apps 11i or R12

The following log files location could help you to findout 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 EBusiness 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