Managing Servers
In this Topic ShowHide
To access the Server Management page, go to Cluster
Setup | Servers.
from this page you can do the following:
- Add a Server
- Remove a Server
Re-match your Cluster
Information Display
When first logging in to Zend Server, There will be no
information displayed in the various tabs. Zend Server
will start to collect information only after you have added at least one server
to the cluster. The only exception to this is if you had servers running
as a cluster and then removed them. All historical information in the
Dashboard tabs is retained such as old queue statistics, jobs and trace
information.
All subsequent information displayed
in the Administration Interface represents the settings of the server
defined as the master server. This is defined when the server was added
by selecting the option "Configure all the cluster like this new
server".
Adding a Server
This procedure describes how to add a server to create a clustered environment
that will be managed by Zend Server.
Once a server is added as a node you will no longer be able to login
to the Zend Server Administration Interface that is running on the added
server. All configuration and management actions will be done by Zend Server.
Before adding a node to the cluster, make sure that the server is running
Session Clustering.
|
|
|
To add a server:
- Go to Cluster Setup |
Servers.
- Click Add Server.
The server configuration page will open
- Enter the server's information as follows:
Server
Name - a unique name for the server that will be used
for identification purposes. Zend
Server Address -Complete the URL path to the Server
you want to add by entering the server's IP address. Server
Password - the Administration Interface password you
defined for accessing Zend Server.
Note: If you do know what your password
is, it may be because you installed Zend Server but never defined
its password. To define the password, login to Zend Server and
enter the password and license information.
|
The
new server will be added to your cluster and will be shown in
the Servers Status table in Monitor | Dashboard. |
Note:
You can only add servers running Zend Server 5.0 and
above. All servers must be running the same version.
Removing a Server
This procedure describes how to remove a server from your cluster
|
|
|
To remove a server:
- Go to Cluster Setup |
Servers.
- Click Remove.
A notification asking to confirm your decision will be displayed
Click Yes
to remove the server |
The
server will still be listed in the table but will no longer belong
to the cluster. If this server was the master server, the next
server in line will become the master after the server was removed.
Once a server is removed as a node you will once again be able
to login to the Zend Server Administration Interface that is running
on the added server. All configuration and management actions
will now be done by directly to the server.
Configurations: Even if there were different configurations
on the server before it was added to the cluster, after removing
a node, the settings that were given to the node as part of a
cluster will stay the same even after it was removed. The one
exception to this are the Zend Monitor settings which will be
restored to the server after it was removed (if there were previous
settings to restore, if not the Zend Server's
settings will stay).
Session Clustering
The "Remove Server" action initiates a graceful shutdown
process whereas all the active sessions will be rerouted to the
other servers in the cluster. While the graceful shutdown is running
the "Remove" option for removing additional servers
will not be available. Once the shutdown is completed you will
be able to remove more servers. |
Force Remove
The force remove option is available when a server cannot for some reason
be removed from the cluster. This is normally the case when trying to
remove the last node from a cluster or when the regular removal hangs
for more than a minute. Force Remove releases the user interface on the
node's side without performing any shutdown actions that preserve information
such as graceful shutdown for session information. The other nodes in
the cluster will stop communicating with nodes that have been removed
with Force Remove
Important Note:
Before using Force Remove try to access the node you
are trying to remove and see if you can locate the reason it could not
be removed properly.
Re-matching a Server
This procedure describes how to re-match a server. Re-match is the process
of realigning the configurations on a given server that has different
configurations. When this happens a notification will appear in Cluster Setup | Servers and a notice
icon will appear next to the server's name.
Note:
Before re-matching a server check to see why the server's
configurations changed i the first place.
|
|
|
To Rematch a server:
- Go to Cluster Setup |
Servers.
- Click Rematch Server.
|
The
Cluster manager's settings will be applied to the server. |
