Installation guide

IPV6 support
18 EAServer
IPV6 support
EAServer 5.1 supports the Internet Protocol Version 6 (IPV6) on platforms that
provide the underlying network support such as Windows 2003, Windows XP,
and Solaris 2.8. Windows 2000 does not support IPV6. IPV6 support also
requires JDK 1.4 or a later JDK version.
By default, the server supports IPV4 connections only. To start the server with
support for IPV6, specify the
-IPV6 and -jdk14 command-line options. With
these options, the server will accept both IPV4 and IPV6 connections. For
more information, see “IPV6 support” in Chapter 3, “Creating and
Configuring Servers,” in the EAServer System Administration Guide.
Server performance monitoring
EAServer 5.1 includes a new Performance Monitor feature to prevent
degradation of server performance under extreme load conditions. You can
configure the Performance Monitor settings to heuristically govern the
processing requests to prevent performance degradation due to overuse of
available resources. For details, see Chapter 9, “Using the Performance
Monitor,” in the EAServer Performance and Tuning Guide.
Custom class loader enhancements
EAServer 5.1 provides a new version of the custom Java class loader that
allows hot refresh of Java classes without restarting the server. The version 2
class loader offers improved diagnostics and allows you to configure the
delegation order for parent-child class loader relationships.
For compatibility with applications configured for earlier EAServer versions,
EAServer uses the previous class loader version (version 1) by default. To
begin using the new class loader, configure the class loader version in the
EAServer Manager Server Properties dialog box. On the Java VM tab, select
Use Jaguar Class Loader Version 2.
For more information, see Chapter 30, “Configuring Custom Java Class
Lists,” in the EAServer Programmer’s Guide.