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One important configuration element is to make sure that
ntpd
is configured to slew the time rather than step time. This can be
achieved using the
-x
flag when running
ntpd
. Refer to the man page for
ntpd
.
4.6 Optional Configuration
4.6.1 Introduction
The following suggestions can be followed to further configure the Rhino SLEE.
4.6.2 Ports
The ports that were chosen during installation time can be changed at a later stage by editing the file
$RHINO_HOME/etc/defaults/config/config_variables
.
4.6.3 Usernames and Passwords
The default user names and passwords used for remote JMX access can be changed by editing the file
$RHINO_HOME/etc/defaults/config/rhino.passwd
.
@RHINO_USERNAME@:@RHINO_PASSWORD@:admin
#the web console users for the web-console realm
#rhino:rhino:admin,view,invoke
#invoke:invoke:invoke,view
#view:view:view
#the jmx delegate for the jmxr-adaptor realm
jmx-remote-username:jmx-remote-password:jmx-remote
More information regarding changing usernames and passwords can be found in Section 15.7.
4.6.4 Separate the Web Console
The Rhino SLEE has two ways of running the Web Console: embedded and external. The embedded web console is enabled
by default to allow simpler administration of the Rhino SLEE. In a CPU-sensitive environment such as a production cluster, it
is recommended that the embedded Web Console be disabled and an external Web Console is run on another host.
To stop the embedded Web Console, edit the file
$RHINO_HOME/etc/defaults/config/permachine-mlet.conf
and set
enabled=”false”
:
<mlet enabled="false">
<classpath>
<jar-url>@FILE_URL@@RHINO_BASE@/client/lib/web-console-jmx.jar</jar-url>
<jar-url>@FILE_URL@@RHINO_BASE@/client/lib/web-console.war</jar-url>
<jar-url>@FILE_URL@@RHINO_BASE@/client/lib/javax.servlet.jar</jar-ur
...
</classpath>
...
<class>com.opencloud.slee.mlet.web.WebConsole</class>
...
</mlet>
To start up an external Web Console on another host, execute
$RHINO_HOME/client/bin/web-console start
on that remote
host. A web browser can then be directed to
https://remotehost:8443
.
Open Cloud Rhino 1.4.3 Administration Manual v1.1 21
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