Supported Configurations: Red Hat Enterprise Linux

WebLogic Server 9.1 and Related Products on Red Hat Enterprise Linux 4.0

Products Supported on this Configuration

Product	Version
AquaLogic Service Bus	2.1
WebLogic Server	9.1

This section provides the following information:

Related Information

For information about supported database configurations, Web servers, browsers, and interoperability tools, plus product support for AquaLogic Service Bus 2.1 and WebLogic Server 9.1, see:

For information about Red Hat Enterprise Linux, see the following Red Hat Web site:

http://www.redhat.com

Configuration Requirements

WebLogic Server 9.1 is supported on Red Hat Enterprise Linux 4.0 on both AMD64 and 64-Bit Xeon hardware. WebLogic Server 9.1 on Red Hat Enterprise Linux 4.0 is also supported on x86 and Itanium. For detailed requirements for these configurations, see the appropriate table:

Requirements for Red Hat Enterprise Linux 4.0 on x86
Requirements for Red Hat Enterprise Linux 4.0 on AMD64 and 64-Bit Xeon with 32-bit JDK
Requirements for Red Hat Enterprise Linux 4.0 on AMD64 and 64-Bit Xeon with 64-bit JDK (WebLogic Server Only)
Requirements for Red Hat Enterprise Linux 4.0 on Itanium (WebLogic Server Only)

Table 9-1 Requirements for Red Hat Enterprise Linux 4.0 on x86

Operating System Version and Patches	Red Hat Enterprise Linux 4.0 AS, ES, WS and any dot release higher than dot zero (or later updates) in RHEL 4 are supported. For example, RHEL 4.3 is supported. Note: Red Hat Enterprise Linux 4.x WS is supported for the design, development, and verification of applications; it is not supported for production server deployment.
Chip Architecture and Minimum Processor Speed	Xeon, Pentium II or higher, x86, and compatible chip architectures (400 MHz)
JDK	JRockit 5.0 (R26.0.0) JDK (32-bit) and all later 5.0 releases of JRockit
RAM	1 GB minimum
Performance Pack	`server/native/linux/i686/libmuxer.so`
Design and Development Tools	WebLogic Server development tools are supported. The AquaLogic Service Bus Data Transformation Tools are not supported on this configuration.

Table 9-2 Requirements for Red Hat Enterprise Linux 4.0 on AMD64 and 64-Bit Xeon with 32-bit JDK

Operating System Version and Patches	Red Hat Enterprise Linux 4.2 AS, ES, WS and any dot release higher than dot two (or later updates) in RHEL 4 are supported. For example, RHEL 4.3 is supported. Note: Red Hat Enterprise Linux 4.x WS is supported for the design, development, and verification of applications; it is not supported for production server deployment.
Chip Architecture and Minimum Processor Speed	AMD64 (1.201 GHz) 64-Bit Xeon (1.201 GHz)
JDK	JRockit 5.0 (R26.0.0) JDK (32-bit) and all later 5.0 releases of JRockit
RAM	1 GB minimum
Performance Pack	`server/native/linux/i686/libmuxer.so`
Design and Development Tools	WebLogic Server development tools are supported. The AquaLogic Service Bus Data Transformation Tools are not supported on this configuration.

Table 9-3 Requirements for Red Hat Enterprise Linux 4.0 on AMD64 and 64-Bit Xeon with 64-bit JDK (WebLogic Server Only)

Operating System Version and Patches	Red Hat Enterprise Linux 4.2 AS, ES, WS and any dot release higher than dot two (or later updates) in RHEL 4 are supported. For example, RHEL 4.3 is supported. Note: Red Hat Enterprise Linux 4.x WS is supported for the design, development, and verification of applications; it is not supported for production server deployment.
Chip Architecture and Minimum Processor Speed	AMD64 (1.201 GHz) 64-Bit Xeon (1.201 GHz)
JDK	JRockit 5.0 (R26.0.0) JDK (64-bit) and all later 5.0 releases of JRockit
RAM	1 GB minimum
Performance Pack	`server/native/linux/x86_64/libmuxer.so`
Design and Development Tools	WebLogic Server development tools are supported.

Table 9-4 Requirements for Red Hat Enterprise Linux 4.0 on Itanium (WebLogic Server Only)

Operating System Version and Patches	Red Hat Enterprise Linux 4.2 AS, ES, WS and any dot release higher than dot two (or later updates) in RHEL 4 are supported. For example, RHEL 4.3 is supported. Note: Red Hat Enterprise Linux 4.x WS is supported for the design, development, and verification of applications; it is not supported for production server deployment.
Chip Architecture and Minimum Processor Speed	Itanium (1.5 GHz)
JDK	JRockit 5.0 R26 JDK (R26.0.0-188) and all later 5.0 releases
RAM	1 GB minimum
Performance Pack	`server/native/linux/ia64/libmuxer.so`
Design and Development Tools	WebLogic Server development tools are supported.

Known Issues

Serial Version UID Mismatch

A Serial Version UID Mismatch Issue may be encountered if you deploy an application on a latest JVM, but compiled with an earlier JDK release.

Workaround: To be compatible with the serialization of previously compiled applications, modify the <BEA_HOME>/Weblogic91/common/bin/commEnv.sh file to include the following command:

JAVA_OPTIONS="$JAVA_OPTIONS -Dcom.sun.xml.namespace.QName.useCompatibleSerialVersionUID=1.0"

Note: If you intend to deploy new applications with previously compiled applications, they must be recompiled as necessary to have the same Serial Version UID.

Issues Related to Red Hat Enterprise Linux 4.0 on AMD64 and 64-Bit Xeon

This section describes known issues that occur when you run WebLogic Server 9.1 on Red Hat Enterprise Linux 4.0 systems based on the AMD64 and 64-Bit Xeon chip architecture.

JVM Stack Overflow

You might encounter a JVM stack overflow error or exception while running WebLogic Server on the Red Hat Enterprise Linux 4.0 AS on 64-Bit Xeon configuration.

Workaround: Increase the stack size from the default 128k to 256k.

Exception Encountered on Systems with Mounted NFS File Systems

You might encounter the following exception while installing WebLogic Server on a system that has NFS file systems mounted:

"Caused by:  java.lang.IllegalArgumentException: Can not list file system roots on this computer"

Workaround: Ensure that you have at least 600MB of free disk space before installing WebLogic Server and use the -Dspace.detection=false flag while installing. The installation command will look like:

java -Dspace.detection=false -jar server910_generic.jar -mode=console

Restriction on Using JMS C APIs with 64-bit JDK and Red Hat Enterprise Linux 4.0 Update 2

Using JMS C APIs with 64-bit JDK and Red Hat Enterprise Linux 4.0 Update 2 will not work.

Workaround: Upgrade to Red Hat Enterprise Linux 4.0 (Update 3)

Issues Related to Other Products

For information about known issues with products supported on this configuration, including available workarounds, see the appropriate Release Notes document.

Issues related to...	Are described in...
AquaLogic Service Bus	AquaLogic Service Bus Release Notes: `http://download.oracle.com/docs/cd/E13171_01/alsb/docs21/relnotes/relnotes.html`
WebLogic Server	WebLogic Server Known and Resolved Issues: `http://download.oracle.com/docs/cd/E13222_01/wls/docs91/issues/known_resolved.html`
Installation and Configuration	Products Installation and Configuration Release Notes: `http://download.oracle.com/docs/cd/E13179_01/common/docs91/relnotes/relnotes.html`

Download and Install Instructions

The following sections describe the steps required to download and install Red Hat Enterprise Linux on the AMD64, 64-Bit Xeon and Itanium Configurations. Refer to the appropriate section for more information:

Download and Install Instructions for Red Hat Enterprise Linux 4.0 on AMD64 and 64-Bit Xeon

The following sections describe the steps to download and install WebLogic Server 9.1, AquaLogic Service Bus 2.1 and JRockit 5.0 for the Red Hat Enterprise Linux 4.0 on AMD64 and 64-Bit Xeon configurations.

Note: The AquaLogic Service Bus 2.1 installer includes the JRockit JDK. You do not need to install it separately.

The steps are described in the following sections:

Downloading and Installing JRockit 5.0 R26 JDK

Download and install the version of the JRockit 5.0 R26 JDK that you want to use:

Linux (Intel EM64T & AMD64 - 64 bit)
Linux (x86 - 32 bit)

Note: For information on how to download BEA products refer to My Oracle Support Note 762254.1 and My Oracle Support Note 763603.1.

Update the JAVA_HOME environment variable to reflect the JDK installation directory. For example:

export JAVA_HOME=<JRockit_installation _directory>

Add your Java executables to the PATH environment variable:

export PATH=$JAVA_HOME/bin:$PATH

Downloading and Installing the WebLogic Server 9.1 Package Installer

Go to Oracle Technology Network or Oracle E-Delivery and download WebLogic Server for Red Hat Enterprise Linux.

Note: For important information on how to download BEA products refer to My Oracle Support Note 762254.1 and My Oracle Support Note 763603.1.
Note: The BEA Download Center (i.e. http://commerce.bea.com) will be decommissioned on February 2, 2009. After this time, customers will be able to download the BEA software from Oracle's E-delivery portal (http://edelivery.oracle.com) or Oracle Technology Network (http://otn.oracle.com).

Install WebLogic Server using the instructions provided in the "Using Installers with Filenames Ending in .jar" section of the WebLogic Server 9.1 Installation Guide.

For more information on installing WebLogic Server, refer to the WebLogic Server 9.1 Online Documentation.

Downloading and Installing AquaLogic Service Bus 2.1

The steps required to install AquaLogic Service Bus are as follows:

Go to Oracle Technology Network or Oracle E-Delivery and download WebLogic AquaLogic Service Bus for Red Hat Enterprise Linux.

Note: For important information on how to download BEA products refer to My Oracle Support Note 762254.1 and My Oracle Support Note 763603.1.
Note: The BEA Download Center (i.e. http://commerce.bea.com) will be decommissioned on February 2, 2009. After this time, customers will be able to download the BEA software from Oracle's E-delivery portal (http://edelivery.oracle.com) or Oracle Technology Network (http://otn.oracle.com).

Install AquaLogic Service Bus 2.1 by completing the console-mode installation procedure for .bin files available at: http://download.oracle.com/docs/cd/E13179_01/common/docs21/install/start.html.

Download and Install Instructions for Red Hat Enterprise Linux 4.0 on Itanium

This section describes the steps to download and install WebLogic Server 9.1 for the Red Hat Enterprise Linux 4.0 on Itanium configuration.

Note: You do not need to download JRockit 5.0 separately as it is bundled with the WebLogic Server 9.1 installer for Itanium.

Downloading and Installing WebLogic Server 9.1

To install WebLogic Server 9.1

Go to Oracle Technology Network or Oracle E-Delivery and download WebLogic Server for Red Hat Enterprise Linux.

Note: For important information on how to download BEA products refer to My Oracle Support Note 762254.1 and My Oracle Support Note 763603.1.
Note: The BEA Download Center (i.e. http://commerce.bea.com) will be decommissioned on February 2, 2009. After this time, customers will be able to download the BEA software from Oracle's E-delivery portal (http://edelivery.oracle.com) or Oracle Technology Network (http://otn.oracle.com).

Install WebLogic Server using the instructions provided in the "Using Installers with Filenames Ending in .bin" section of the WebLogic Server 9.1 Installation Guide.

For more information on installing WebLogic Server, refer to the WebLogic Server 9.1 Online Documentation.