Red Hat APPLICATION STACK 2.4 RELEASE Manual de instrucciones

Red Hat Application

Stack 2.4

Release Notes

for Use with Red Hat Application Stack 2.4

Release Notes

Red Hat Application Stack 2.4 Release Notes

for Use with Red Hat Application Stack 2.4

Edition 1.0

iii

1. Introduction 1

1.1. Overview of This Release ............................................................................................. 1

1.2. Installation Prerequisites ............................................................................................... 1

1.3. Package-specific Notes ................................................................................................ 1

2. Configuring the Java Environment 3

2.1. Install a supported SDK .............................................................................................. 3

2.1.1. Installing a IBM or Sun SDK ............................................................................. 3

2.2. Install the jbossas package ....................................................................................... 4

2.2.1. Using yum / RHN ............................................................................................. 4

3. Installing Red Hat Application Stack 5

4. Using JBoss Application Server 9

4.1. Using the Linux service (production) ............................................................................ 9

4.2. Using run.sh (development) ....................................................................................... 10

4.3. Creating copies of JBOSS_HOME ................................................................................. 11

4.4. Using the jbossas-* commands from any directory .................................................. 12

4.5. Running multiple instances of JBoss Application Server ............................................... 12

4.5.1. Running multiple instances of JBoss Application Server using different sets of

ports ....................................................................................................................... 13

4.5.2. Running multiple instances of JBoss Application Server binding to different local

IP addresses ........................................................................................................... 14

4.6. More Information ....................................................................................................... 15

5. Export Control 17

Chapter 1.

Introduction

1.1. Overview of This Release

Red Hat Application Stack is a set of software components that have been tested and certified to work

together in an integrated fashion. Red Hat Application Stack is designed for dynamic web applications

for both the LAMP and Java (TM) platforms.

The Red Hat Application Stack V.2.4 is avaliable as two different distributions. One contains JBoss

Enterprise Application Platform 4.2 and the other contains the JBoss Enterprise Application Platform

4.3. These release notes cover both distributions for your convenience.

1.2. Installation Prerequisites

• Red Hat Application Stack V.2.4 has been tested and certified on Red Hat Enterprise Linux 5

systems. It is not certified for use with earlier versions of Red Hat Enterprise Linux. Please follow the

separate instructions for installing Red Hat Enterprise Linux 5 before installing Red Hat Application

Stack V.2.4.

• Red Hat Application Stack V.2.4 is available for 32- and 64-bit Intel architectures only (i386 and

x86_64).

• Red Hat Application Stack V.2.4 will include either JBoss Enterprise Application Platform 4.2 or

JBoss Enterprise Application Platform 4.3, for running web applications in a standard middleware

environment. Note that the JBoss Enterprise Application Platform uses an embedded Tomcat and

does not require a stand-alone Tomcat. Before installing and running the JBoss Application Server

(the application server component of the JBoss Enterprise Application Platform), you will require

a working installation of Java 1.5. Currently Red Hat Application Stack is certified with the Sun

JVM 1.5.0 update 15 or later. Please refer to Chapter 2, Configuring the Java Environment for

instructions on configuring the Java environment for JBoss Application Server.

• If you intend to use the production config (started by default), you will need atleast 1.5GB of physical

memory.

1.3. Package-specific Notes

In most cases, Red Hat Application Stack contains more recent versions of packages than those

that are included in Red Hat Enterprise 5. Installing Red Hat Application Stack may update/overwrite

these packages. Please ensure you review the complete package list before beginning the installation

process.

Chapter 2.

Configuring the Java Environment

JBoss Application Server relies on an installed JVM, such as those by Sun, or IBM Both JVMs are

available from the Red Hat Enterprise Linux 5 Supplementary channels.

THIS RELEASE HAS BEEN CERTIFIED WITH THE SUN JVM.

Currently Red Hat Application Stack is certified with the Sun JVM version 1.5.0 update 15

or later.

With 5 there are 1.5 versions of the BEA (JRockit), IBM and SUN SDKs.

With Red Hat Enterprise Linux 5 there are 1.5 versions of the IBM and SUN SDKs. We have adopted

the jpackage.org style for the packaging of our Java offerings. This requires that the jpackage-

utils rpm be installed on your system. A JPackage-style JVM must be installed via yum (see channel

details below) and jpackage-utils will be automatically brought in as a dependency.

2.1. Install a supported SDK

2.1.1. Installing a IBM or Sun SDK

1. Install a Java SDK from RHN

Java SDKs are provided by the Red Hat Enterprise Linux 5 Supplementary channel for your Linux

variant and architecture. Depending on the architecture, the channel names are:

rhel-i386-server-supplementary-5 and rhel-x86_64-server-supplementary-5

The java-1.5.0-ibm and java-1.5.0-sun SDKs are available from these channels. Make

sure you also install the -devel subpackages.

2. Selecting alternatives for java, javac and java_sdk_1.5.0 (setting java_sdk_1.5.0 is

optional).

This is only needed if you want to use the SysV service script and/or want this installed SDK to

be the default java and javac in the system. This choice can often be overridden by setting the

JAVA_HOME environment variable.

The alternatives system allows different versions of Java, from different sources to co-exist on

your system. You should make sure the desired one is selected so that the service script uses the

one you want.

As root, issue the following command:

/usr/sbin/alternatives --config java

and make sure the desired one is selected (marked with a '+'), or select it by entering its number

as prompted.

Chapter 2. Configuring the Java Environment

Make sure you do the same for javac and java_sdk_1.5.0. We recommend that all point to

the same manufacturer and version.

2.2. Install the jbossas package

2.2.1. Using yum / RHN

1. Update your Red Hat Enterprise Linux 5 installation and install the JVM as described above.

2. Subscribe to the Enterprise Application Platform child channel:

e.g: jbappplatform-4-i386-as-5-rpm or jbappplatform-4-x86_64-as-5-rpm

3. Install JBoss Application Server:

• For the Application Server (which includes an embedded Tomcat), run:

yum install jbossas

Refer also to Chapter 4, Using JBoss Application Server below.

Chapter 3.

Installing Red Hat Application Stack

To install Red Hat Application Stack V.2.4:

1. If you have an existing database and are installing Red Hat Application Stack for the first time,

back up your data and shut down the database:

• If you are using PostgreSQL:

Back-up your database. For example, run:

su -

rm -rf /tmp/pg.backup

su - postgres

/usr/bin/pg_dumpall > /tmp/pg.backup

exit

• If you are using MySQL:

Backing-up your database is optional but recommended. Run as root:

mysqldump --all-databases -p > /tmp/mysqldumpfile.sql

2. Stop the daemons:

/sbin/service httpd stop

• To shut down MySQL:

/sbin/service mysqld stop

• To shut down PostgreSQL:

/sbin/service postgresql stop

3. Install the software:

• To install from RHN:

• Subscribe to the Red Hat Application Stack child channel:

e.g: rhel-x86_64-5-appstk-2 or rhel-i386-5-appstk-2

• Subscribe to the Enterprise Application Platfrom child channel:

e.g: jbappplatform-4-i386-as-5-rpm or jbappplatform-4-x86_64-as-5-rpm

• Run as root: yum update

Chapter 3. Installing Red Hat Application Stack

• Run as root: yum groupinstall stacks

Note

You may need to install the following packages to satisfy dependencies before

executing the above command, if they are not already installed:

•apr-devel

•apr-util-devel

•libc-client

•mx

•pcre-devel

Note

You can also install specific components of the stack via the yum groupinstall

directive specified in Section 3. In addition to "stacks", the following groups are

defined:

j2ee - Installs jbossas, jboss-seam, mod_jk and database jdbc drivers

lamp - Installs httpd, mysql, php and all components related to mysql

lapp - Installs httpd, postgresql, php and all components related to postgresql

docs - Installs documentation for various components

When using the groupinstall directive, you can specify multiple groups at the

same time (even if they share packages).

Analogous to groupinstall, you can use the "groupremove" directive to remove

all the packages in a group. The groupremove directive will only remove packages in

the group; not the dependencies that the package install may have brought in.

4. Restore your database:

• For PostgreSQL:

• Move (or remove) the database directory:

mv /var/lib/pgsql/data /var/lib/pgsql/data.backup

• Initialize the database:

/sbin/service postgresql initdb

• Start the new PostgreSQL service:

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