Seed Node Replacement Configuration; Installing Additional Nodes To Create A Cluster - Avaya Aura Deployment Manual

Avaya Aura ® Web Gateway setup
For example:
sudo ./csa-<version>.bin /home/avaya/installation.properties
4. (Optional) To start the Avaya Aura
svc csa start
5. Manually configure the remaining items.
When possible, use the web administration portal to modify configuration settings instead
of the configuration utility. For more information about using the web administration portal,
see Administering the Avaya Aura

Seed node replacement configuration

If a seed node is unavailable, you might experience service loss on an Avaya Aura
cluster. You will also be unavailable to install a new node on the cluster. To prevent this issue from
occurring, you can specify a list of backup nodes for the seed node while performing silent
installation. If the initial seed node becomes unavailable, Cassandra replaces it with a node from
the backup nodes list, so the cluster continues to operate. When you add a new node, Cassandra
checks whether the initial seed node is available. If not, Cassandra tries to connect the new node
to one of backup nodes.
Important:
You cannot configure backup nodes using the standard, interactive installation process.
Specify backup nodes in the SEED_NODE_BACKUP property of the
installation.properties file. The value of this parameter is a list of IP addresses separated
by commas. For example: SEED_NODE_BACKUP=192.168.150.3,192.168.150.4. If the seed
node is unavailable, Cassandra tries to replace it with a node listed in SEED_NODE_BACKUP in
the order specified in the property. On Avaya Aura
configuration in the /opt/Avaya/CallSignallingAgent/<version>/cassandra/
<version>/conf/cassandra.yaml file.
Related links

Installing additional nodes to create a cluster

Installing additional nodes to create a cluster
About this task
You can achieve redundancy and increase capacity by creating a cluster of Avaya Aura
Gateway nodes.
The installation procedure for each additional node is similar to the procedure for a single-server
or initial node installation, with the addition of some cluster specific configuration.
The virtual IP address and the IP addresses for all nodes of the cluster must be in the same
network.
October 2018
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Web Gateway service, run the following command:
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Web Gateway.
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Web Gateway, you can review the seed nodes
on page 68
Deploying the Avaya Aura
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Web Gateway
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