Technical Requirements

• Prerequisites

• Minimum Sizing Requirements

• Support Levels

• Supported Platforms

To install CQ WCM you need:

• JRE or JDK 1.5 (or higher). See Additional Platform Notes for further information.

  The JRE is no longer bundled with CQ WCM as it was in versions prior to CQ 5. You can obtain JRE 1.5 or higher from the Sun web site

• the CQ WCM quickstart jar file which also contains the required applications:

  • CRX 1.4.2
  • CQSE (CQ Servlet Engine) supporting 2.4 (or higher)

The following are the minimum requirements:

• 400 MB free disk space in the deployment directory

• 512 MB memory

  If you are using CQ DAM, you must increase the heap size when starting CQ WCM.

You will have to increase these in accordance with your operational expectations.

This document lists the supported client and server platforms for CQ 5.2 WCM. Day provides several levels of support, both for our recommended configurations and for other configurations.

Day recommends these configurations and provides full support as part of the standard software maintenance agreement. Here we share the same support level overview as in CRX.

The configuration is tested and known bugs are fixed. Issues that are submitted by customers in the form of a fully qualified request are addressed in future releases.

Day cannot guarantee that the configuration works as expected, and support for these configurations is not included in the standard software maintenance agreement.

CQ5 works with the following server platforms:

• If you are installing CQ 5.x on a SUSE Linux Enterprise Server, be sure to have the latest Java SDK version installed. Also, if you are installing all components, including the examples, you must either increase the max heap size, or install using a two-step process: 
• Install (only) the CQ Servlet Engine using custom installation.
• Install the Authoring instance with customized installation.
• Windows 2003 with SP2 is not able to connect to WebDAV. Please see Microsoft - Software Update for Web Folders (KB907306) for full details of the manual updates which need to be made.

CQ5 works with the following virtual machines in cloud computing environments:

• EC2 optional support also needs compliance to Day's support policy for all other system components.

CQ5 runs on the following application servers.

You can run CQ WCM without an application server, but you need a Servlet Engine.

Both CRX, and therefore CQ WCM, ship with Day’s CQSE servlet engine, which you can use freely and which is fully supported.

CQ5 operates with the following versions of the Java Virtual Machine (Runtime Environment).

• The IBM and HP environments are only supported on IBM (AIX) and HP (HP-UX) server platforms respectively. For all non-IBM, non-HP platforms, the Sun JRE is supported.
• If you are using Sun JDK 1.5.0_6, your Java VM may crash. Upgrading to Sun JDK 1.5.0_7 solves this problem.

The following platforms are supported for use with the Dispatcher, Day’s caching and load balancing solution:

• Other HTTP servers, built on the basis ofApache sources, only have the same support level as that of the Apachehttpd server when official Apache source distributions were used, orthey were delivered with the operating system.
• If in doubt, please ask Day for confirmation of the support level related to the respective server product.

CQ WCM works with the following client platforms.

All browsers are tested without plug-ins and add-ons. Some plug-ins and add-ons may interfere with CQ.

• Use of WebDAV with Windows Vista is only supported with SP2. Please see Additional Platform Notes - WebDAV Clients for full details of the manual updates which need to be made.

• CQ5 is tested with the latest Mozilla Firefox version available. All browsers are tested without plug-ins and add-ons. Some plug-ins and add-ons may interfere with CQ5.

CQ5 operates with any JSR-170 compliant repository.

This section provides special notes and more detailed information about running CQ WCM on certain platforms.

Windows 2003

Windows 2003 with SP2 cannot connect to WebDAV. See Microsoft - Software Update for Web Folders (KB907306) for full details of the manual updates that need to be made.

Windows Vista

Windows Vista requires SP2 to connect to WebDAV.

To successfully connect with Vista SP2, basic authentication for webclients must be enabled. This requires a change in the windows registry to enable Basic authentication on the client computer:

1. Locate the registry subkey:
   • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient\Parameters
2. Add the BasicAuthLevel registry entry to this subkey using a value of 2 or more.

See Microsoft Support KB 841215.

Java Versions. Generally, at least JRE 1.5 is recommended, as the following CQ WCM components or features require at least JRE 1.5:

• CRX Launchpad

• CRX Package Manager

• CQ WCM Quickstart

If JRE 1.4.2 is required due to other project/deployment dependencies, the CRX core repository (crx-explorer_crx.war) can still run with this Java version. In this case, the Package Manager is not supported.

Java Distributions. The CQ WCM application requires only a Java Virtual Machine to run, which is provided by the Java Runtime Environment (JRE) distribution. Generally Day recommends using the Java Development Kit (JDK) distribution, which is a typical requirement of the Java application servers in which CQ WCM runs. Both JRE and JDK distributions are a part of the Java Standard Edition (Java SE).

Java Environment Suppliers. The IBM and HP Java environments are only supported on IBM and HP server platforms, respectively. For all non-IBM, non-HP platforms, the Sun JRE is supported.

Servlet API Versions. CRX Launchpad web development environment, based on Apache Sling, requires a servlet engine supporting Servlet API version 2.4. All other components of CRX, including the JCR repository and CRX web application, also work with servlet engines supporting Servlet API version 2.3.

Application Server Support. CQ WCM is expected to work with any modern application servers/servlet engines (that support at least Servlet API 2.3), including popular open source products like Jetty, Apache Tomcat, Apache Geronimo or Sun GlassFish. Day recommends stable, non-deprecated versions of these application servers (information available on supplier websites). For production use, Day offers optional support for these platforms.

QA Note. CQ WCM on IBM WebSphere 6 application server was tested with the IBM Java Development Kit (JDK) 1.4.2 under Linux.

Please read the Copyright, Licenses and Disclaimers page for all details.