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Setting Up a Cluster
4. Is the number of currently active engines less then the MAXENGINE number
specified for the server for that job type?
Both stand-alone and clustered servers share the same, basic configuration. The cluster
has no special configuration requirements, beyond needing to share a common cluster
name and common public and private keys. There are no limitations on the platform
used, the number of servers in the cluster, or the location of the server. There is no
requirement to share resources within the cluster servers.
Engine output is locally cached in a particular Reports Server within the cluster, but it
is also known and available to the entire cluster. If a server is down, that server's
cached files are no longer available for reuse. This means that another server within
the cluster must rerun the request to obtain the output. When the server is running
again, all of the cached files become available due to the persistent state of the cache.
12.2 Setting Up a Cluster
Clustering in OracleAS Reports Services is as easy as naming all member servers with
the same "dot extension," for example server_name.cluster or server_name.xyz,
and ensuring that all member clusters share the same public and private key.
This section covers renaming your Reports Server, creating and specifying public and
private keys, and submitting requests to a cluster. It contains the following sections:
■ Renaming a Reports Server
■ Generating New Public and Private Keys
■ Entering Public and Private Keys in the Server Configuration File
■ Restarting the Reports Server
■ Submitting a Request to a Cluster
12.2.1 Renaming a Reports Server
It is likely that you are reading this material after you've already set up at least one
Reports Server. If this is the case, you'll need to change the name of your server to add
the cluster name to the server name.
Note: If you haven't yet installed your servers, when you do
install them you must give them all different server names but the
same cluster name, for example servernameA.cluster1,
servernameB.cluster1.
To rename a Reports Server:
1. If the server is running, shut it down:
■ If it's running on Windows as a service, stop it through the Services control
panel.
■ If it's running on Windows through a server executable, or on UNIX through a
shell script, click the Shutdown button in the Oracle Reports Server dialog
box.
■ If it's running from a command line on Windows or UNIX, at the command
prompt enter the following command for Windows or UNIX:
This shuts down the server normally:
12-2 Oracle Application Server Reports Services Publishing Reports to the Web