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  • Liferay Beginner’s Guide
  • Robert Chen Sandeep Nair Samir Bhatt
  • 289字
  • 2021-08-27 12:04:29

Time for action – finding RAM information

Assuming that you are using a laptop computer that runs the Windows 7 operating system, carry out the following steps to get the information about RAM:

  1. Click on the Windows icon at the bottom corner on the left-hand side.
  2. Right-click on the Computer link and then click on the Properties link.
  3. Find the RAM information, as shown in the following screenshot:
    Time for action – finding RAM information

What just happened?

This machine has 4.00 gigabytes of RAM installed, of which 3.24 gigabytes are available. Because the available memory is larger than is required for running a Liferay Portal instance, we can install a Liferay Portal instance on this laptop computer.

Software requirements

Liferay Portal can be combined with multiple kinds of database servers and application servers.

As a web application, the running environment of Liferay Portal involves a browser, Java Virtual Machine (JVM), a database server, and a mail server.

Note

The Liferay Portal Tomcat bundle comes with a default database called hypersonic , which is an in-memory database. This database is good for non-production use. This means that a reader does not have to install a database server for Liferay Portal, if he/she is running Liferay Portal purely for study purposes.

Operating systems

Liferay Portal can be installed on multiple operating systems. In this book, we will install a Liferay Portal instance in a Windows operating system. The sample site is installed in a Linux operating system.

Java Development Kit

The Java Development Kit (JDK) includes code for the JVM in which Liferay Portal will run.

Let's say that your computer has the following specifications:

  • Windows XP or Windows 7
  • Processor: Intel(R) Core (TM) CPU
  • Installed memory (RAM): 2.00 GB or more
  • System type: 32-bit operating system
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