Cloud CM-IPMP Guía para resolver problemas Pagina 133

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Figure 21.1: Cluster with mulitple database servers
The main working memory consists of several memory databases on each node.
The
ManagementDatabase
which holds the working configuration and run-time state of the logging system, services,
resource adaptor entities.
The
ProfileDatabase
which holds the profile tables, profiles and profile indexes.
Generally both of these memory databases must be configured for fail-over using multiple PostgreSQL database servers.
Before connecting Rhino SLEE to the remote database server, the database must be prepared by executing
$RHINO_NODE_HOME/init-management-db.sh
on that database server:
init-management-db.sh --help
Initialise the Rhino SLEE main working memory database schema.
-h hostname : The host running postgres.
Default is MANAGEMENT_DATABASE_HOST
-p port : The port running postgres.
Default is MANAGEMENT_DATABASE_PORT
-u username : The user to connect to template1.
Default is MANAGEMENT_DATABASE_USER
-d database : The name of the database to create.
Default is MANAGEMENT_DATABASE_NAME
Optional switches override local configuration options
found in $RHINO_NODE_HOME/config/config_variables
You will be prompted for a password on the command line
Once the databases are initialized on each database server, configure rhino for use with multiple PostgreSQL servers by editing
the configuration file
$RHINO_NODE_HOME/config/rhino-config.xml
. This configuration must be applied to each node in the cluster.
Multiple
<persistence-instance>
elements will need to be added to the
<persistence>
element for the
memdb
element
with the
jndi-name
of
ManagementDatabase
and
ProfileDatabase
as shown below.
Each <persistence-instance> element needs to be completed with the attributes of the PostgreSQL server (hostname, database
Open Cloud Rhino 1.4.3 Administration Manual v1.1 124
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