Run AutoConfig to change hostname for E-Business Suite

Oracle E-Business Suite is dependent on hostname. User can easily change the IP of the machine, but user cannot anyhow change the hostname of the machine. To change the hostname, we need to run AutoConfig on E-Business Suite.

First, startup dbTier. AppTier is not required at all in the whole process.

FOR DATABASE TIER:
Note:338003.1 How to change the hostname and/or port of the Database Tier using AutoConfig

1. Login as oracle user.

2. De-register the current database server.
perl $ORACLE_HOME/appsutil/bin/adgentns.pl appspass=apps contextfile=$CONTEXT_FILE -removeserver

3. Update AutoConfig Context file with new host information. Edit $CONTEXT_FILE directly.
* Copy $CONTEXT_FILE to a new context file.
cp /opt/oracle/product/10.1.0/db/appsutil/PROD_<oldhost>.xml
/opt/oracle/product/10.1.0/db/appsutil/PROD_<newhost>.xml
* Edit /opt/oracle/product/10.1.0/db/appsutil/PROD_<newhost>.xml directly.
- Replace all <oldhost> to <newhost>
- Replace all <olddomain.com> to <newdomain.com>

4. Change hostname.
- Execute "system-config-network" to change the new hostname for the machine.
- Edit /etc/hosts with "newhost.newdomain.com ip newhost".

(After changing hostname, you'll not be able to startup any graphical application such as xclock due to "Xlib: connection to :0.0 refused by server". You can press "ctrl + alt + backspace" to kill x server.)

5. Execute AutoConfig for dbTier.
cd $ORACLE_HOME/appsutil/bin/
./adconfig.sh contextfile=$ORACLE_HOME/appsutil/PROD_<newhost>.xml

FOR APPS TIER:
Note:341322.1 How to change the hostname of an Applications Tier using AutoConfig

1. Login as applmgr user.

2. De-register the current apps server.
perl $AD_TOP/bin/adgentns.pl appspass=apps contextfile=$CONTEXT_FILE -removeserver

3. Update AutoConfig Context file with new host information. It is easier to edit $CONTEXT_FILE directly.
* Copy $CONTEXT_FILE to a new context file.
cp /opt/oracle/apps/prodappl/admin/PROD_<oldhost>.xml
/opt/oracle/apps/prodappl/admin/PROD_<newhost>.xml
* Edit /opt/oracle/apps/prodappl/admin/PROD_<newhost>.xml directly.
- Replace all <oldhost> to <newhost>
- Replace all <olddomain.com> to <newdomain.com>

4. Execute AutoConfig for appTier.
cd $AD_TOP/bin
./adconfig.sh contextfile=/opt/oracle/apps/prodappl/admin/PROD_<newhost>.xml appspass=apps

FINISHING TASK:

AutoConfig doesn't convert E-Business Suite completely. Some settings may remain unchanged or reset to default. So, it is required to go check the configuration as described in Cloning Guide.

Identified steps are:

1. As applmgr, vi /opt/oracle/apps/prodappl/admin/adgetlnxver.sh to ensure ctxfile is pointing to correct PROD_<newhost>.xml file.
ctxfile="/opt/oracle/apps/prodappl/admin/PROD_htb.xml"

2. As applmgr user, vi $IAS_ORACLE_HOME/Apache/Jserv/etc/jserv.properties to ensure:
wrapper.bin.parameters=-Djava.awt.headless=true
wrapper.bin.parameters=-DAdaptorCatalog=/opt/oracle/apps/prodappl/au/11.5.0/java/catalog.xml
wrapper.bin.parameters=-DClientMode=local

3. As oracle user, do the following:
$ sqlplus apps/apps
sql> update icx_parameters set session_cookie_domain='newdomain.com';
sql> conn applsys/apps
sql> select profile_option_value from fnd_profile_option_values where profile_option_value like '%oldhost%';
sql> update fnd_profile_option_values set profile_option_value='/opt/oracle/db/proddb/9.2.0/appsutil/outbound/PROD_newhost' where profile_option_value like '%oldhost%';
3 rows will be updated.
sql> exit;

Done. You can startup AppTier now and access E-Business Suite login page at http://newhost.newdomain.com:8000.

Ask VMWare to generate unique id (UUID)

Last month, the company updated the physical network configuration. The VMWare instance experienced a mysterious problem - VMWare instance could access the outside world, but outside world could not ping it.

I have tested static IP, DHCP, configured this VMWare instance to use valid IP of other machine (while shutting that machine down), extracted the old backup version of this VMWare instance, etc. A colleague told me he encountered this issue before. What to do is, while this VMWare instance executes "ping ..." to outside world, then outside world can ping it but with 50% packet lost. This is still mysterious and not acceptable.

I recalled, when VMWare starts up the vm instance, it would ask whether to generate unique id (universally unique identifier) for the vmware instance. This step gives the virtual machine's Ethernet card a new MAC address, to prevent address conflicts with other people using this virtual machine.

However I have chosen the option to always keep the uuid, how do I ask VMWare to ask me to create the uuid again?

Reference: http://www.vmware.com/support/gsx3/doc/manage_uuid_gsx.html

1. In the folder that contains VMWare files, look for .vmx file. It is a plain text file that contains setting of the vm instance.
2. Copy .vmx to other name, e.g. file2.vmx.
3. Edit file2.vmx to remove the line, which contains “uuid.action”.Start VMWare to load file2.vmx, VMWare will ask you to create uuid again.