Tuesday, 9 January 2018

Oracle WebLogic Server (WLS) 12cR1 (12.1.3) Installation on Oracle Linux 5 and 6

This article presents a brief overview of installing Oracle WebLogic Server (WLS) 12cR1 (12.1.3) on Oracle Linux 5 and 6.

1. Assumptions

This article assumes you have an existing server (real or virtual) with either Oracle Linux 5.x or 6.x installed on it. For instruction on how to do this check out the following articles.

◈ Oracle Linux 5 (OL5) Installation : I did the basic installation with no extra package groups for this installation.
◈ Oracle Linux 6 (OL6) Installation : I picked the "Desktop" option for this installation, so I would have a graphical interface without having to select separate package groups.

Everything in the installation will be 64-bit.

2. Download Software

Download the Weblogic Server 12c software from Oracle Technology Network.

Java Development Kit (I used 7u60 jdk-7u60-linux-x64.tar.gz)
WebLogic Server 12c Release 3 - Generic WebLogic Server and Coherence Installer (881M)

3. Setup

The following actions should be performed by the "root" user.

Make sure the "/etc/hosts" file contains correct entries for both the "localhost" and real host names.      localhost localhost.localdomain localhost4 localhost4.localdomain4  ol6-wl12cr3.localdomain ol6-wl12cr3

Create a new group and user.

groupadd -g 54321 oinstall
useradd -u 54321 -g oinstall oracle
passwd oracle

Create the directories in which the Oracle software will be installed.

mkdir -p /u01/app/oracle/product/fmw12cr3
mkdir -p /u01/app/oracle/config/domains
mkdir -p /u01/app/oracle/config/applications
chown -R oracle:oinstall /u01
chmod -R 775 /u01/

Append the following entries into the "/home/oracle/.bash_profile" file.

# Adjust paths as required.
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/fmw12cr3
export WLS_HOME=$MW_HOME/wlserver
export DOMAIN_BASE=$ORACLE_BASE/config/domains
export DOMAIN_HOME=$DOMAIN_BASE/mydomain
export JAVA_HOME=/u01/app/oracle/jdk1.7.0_60
export PATH=$JAVA_HOME/bin:$PATH

Install the JDK.

# su - oracle
$ tar -xvzf /tmp/jdk-7u60-linux-x64.tar.gz

As specified in MOS Note [ID 1487773.1], amend the "/etc/security/limits.d/90-nproc.conf" file, making the following change.

# From
*          soft    nproc     1024

* - nproc 16384

4. Installation

Run the installer as the "oracle" user.

$ unzip ofm_wls_generic_12.
$ $JAVA_HOME/bin/java -jar fmw_12.

If this is the first installation on the server, enter the inventory installation location and click "OK" button.

Click the "Next" button on the welcome screen.

Enter the middleware home ("/u01/app/oracle/product/fmw12cr3") and click the "Next" button.

Accept the "WebLogic Server Installation" option by clicking the "Next" button.

Wait for the prerequisite checks to complete. If there are failures, correct them and rerun the checks. If there are no failures, click the "Next" button.

Either enter your support details, or uncheck the security updates checkbox. Click the "Next" button. If you chose not to receive security updates, click the "Yes" button on the warning dialog.

If you are happy with the summary information, click the "Install" button.

Wait for the installation to complete, then click the "Next" button.

On the installation complete screen, click the "Finish" button to launch the Configuration Wizard.

5. Create Domain

If you have not chosen to launch the Configuration Wizard as part of the installation, you can do it manually.

$ $WLS_HOME/common/bin/config.sh

Accept the "Create a new domain" option, enter the domain name at the end of the "Domain Location", then click the "Next" button. In this case my domain was called "mydomain", so the path I used was "/u01/app/oracle/config/domains/mydomain".

Select the required product template and click the "Next" button.

Enter the administrator credentials and click the "Next" button.

Enter the domain mode and JDK details, then click the "Next" button.

Select any required advanced configuration options. For this example I ignored the advanced configuration. Click the "Next" button.

If you are happy with the configuration summary screen, click the "Create" button.

Once the domain is created, click the "Next" button.

Make a note of the Admin Server URL and click the "Finish" button.

6. Post-Installation

If you chose the "Production Mode" options for the domain, you will need to create a "boot.properties" file for the scripts referred to later to work without credentials. Adjust the DOMAIN_HOME and credentials appropriately.

$ export DOMAIN_HOME=$ORACLE_BASE/config/domains/mydomain
$ mkdir -p $DOMAIN_HOME/servers/AdminServer/security
$ echo "username=weblogic" > $DOMAIN_HOME/servers/AdminServer/security/boot.properties

$ echo "password=Password1" >> $DOMAIN_HOME/servers/AdminServer/security/boot.properties
The "$ORACLE_BASE/config/domains/mydomain" directory now contains a script that can be used to start the server. Remember to use the "&" if you want access to the commandline to be returned.

$ $DOMAIN_HOME/startWebLogic.sh &

Once the server is started you can access the administrator console using the "http://hostname:port/console" URL. Log in using the username and password provided in the previous step.

The following scripts are useful.

$ # Start NodeManager (if you configured one-per-domain)
$ nohup $DOMAIN_NAME/bin/startNodeManager.sh > /dev/null 2>&1 &

$ # Start WebLogic
$ nohup $DOMAIN_HOME/startWebLogic.sh > /dev/null 2>&1 &
$ # or
$ nohup $DOMAIN_HOME/bin/startWebLogic.sh > /dev/null 2>&1 &

$ # Stop WebLogic
$ $DOMAIN_HOME/bin/stopWebLogic.sh

$ # Start Managed Server
$ nohup $DOMAIN_HOME/bin/startManagedWebLogic.sh AdminServer > /dev/null 2>&1 &

$ # Stop Managed Server
$ $DOMAIN_HOME/bin/stopManagedWebLogic.sh AdminServer

$ # Start the configuration wizard
$ $WLS_HOME/common/bin/config.sh