
• The “awk” command utility.
$ which awk
/bin/awk
• The “sed” command utility.
$ which sed
/bin/sed
4.2.2 PostgreSQL database configuration
The Rhino SLEE depends on the PostgreSQL RDBMS to persist its main working memory. This working memory is where
Rhino SLEE stores it’s current configuration and run-time state.
The Rhino SLEE has been tested on PostgreSQL versions 7.4.12 and 8.0.7. Running the Rhino SLEE using these versions of
PostgreSQL is supported by Open Cloud.
For further information about the installation of PostgreSQL please refer to Chapter 21.
A single PostgreSQL server installation will support all of the nodes in the cluster. For further information about running
multiple PostgreSQL servers to support a cluster please refer to Section 21.6.
Before a PostgreSQL database can be used with Rhino, it must be initialised. For more information, see Section 4.2.10.
4.2.3 Firewalls
If the local system has a firewall installed, the firewall rules will need to be modified to allow multicast UDP traffic.
Multicast addresses are, by definition, in the range 224.0.0.0/4* (224.0.0.0-239.255.255.255).
This range is separate from the unicast address range that machines use for their host addresses.
Rhino SLEE uses multicast UDP to distribute main working memory between cluster members. During the install it asks for a
range of multicast addresses to use. By default the port numbers which are required are: 45601,45602,46700-46800.
All nodes in the cluster must use the same multicast addresses – this is how they see each other.
Ensure that the firewall is configured to allow multicast messages through on the multicast ranges/ports that are configured
during installation.
4.2.4 Unpacking
The Rhino SLEE is delivered as an uncompressed tar file named
Rhino-1.4.3.tar
.
This will need to be unpacked using the
tar
command, for example:
$ tar xvf Rhino-1.4.3.tar
$ cd rhino-install
This will create the distribution directory
rhino-install
in the directory where the binary distribution was unpacked.
4.2.5 Installation
From within the distribution directory
rhino-install
execute the script
rhino-install.sh
to begin the installation process.
If the installer detects a previous installation, it will ask if it should first delete it.
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