Oracle Apps Issues.

1. The Internal Concurrent Manager has encountered an error.

Review concurrent manager log file for more detailed information. : 06-JUL-2010
08:04:23 -


Shutting down Internal Concurrent Manager : 06-JUL-2010 08:04:23

List of errors encountered:
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_ 1 _
Routine AFPCSQ encountered an ORACLE error. .

Review your error messages for the cause of the error. (=)
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List of errors encountered:
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_ 1 _

2. Oracle apps login page not opening or showing blank:

Error in log file: [Sat Jul 10 15:13:30 2010] [notice] Accept mutex: fcntl (Default: fcntl)

Solution:

stop apps
go to $COMMON_TOP
remove contents of the folder _pages
perl $FND_TOP/patch/115/bin/ojspCompile.pl --compile --flush -p 5
start apps

3. Oracle CM - Standard Manager not Starting up and giving below issue:
Routine AFPESA cannot construct the name of an executable file for REQID

Soln:

Add Custom Top in the ENV file and restart CM

4. Cloning issue after adcfgclone perl dbTier

RC-50004: Fatal: Error occurred in ApplyDatabase:
Control file creation failed


apply dbtechstack option and clone manually

5. RC-20200: Fatal -- Unzip issue - -add unzip to the path

Replaced unzip version with 5.5.2 and it worked.

6. APP-FND-01564 ORACLE error 942 in afpoload


apps user accnt locked

7. Oracle Apps login page is loaded, but the regular sysadmin and front-end user's password is not working(Even though the passwords aren't changed).

Check if all the background processes are running, particularly "mmon" in case of 10g and 11g: ps -ef | grep mmon

Check Alert log of the database to see if there was an errror during database shutdown.