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Foglight 7.1.0 - High Availability Field Guide

Requirements

If you plan to run the Foglight® Management Server in HA mode, there are certain considerations:

 

Managing High Availability mode

High Availability (HA) mode enables you to install multiple Foglight® Management Servers, where one server is the primary server and the others are standby servers. If the primary server stops responding, then the responsibility is taken over by one of the standby servers.

This describes the common management tasks for HA servers.

For information on tuning an HA cluster for better performance, see Tuning connection issues in HA implementations .

Enabling High Availability mode

You can enable High Availability mode during a Foglight® Management Server installation, or afterwards by editing the server.config file.

1
On the Foglight Mode page of the installer, select HA (High Availability) as the server startup mode.
2
In the HA Partition field, type the partition name.
Configure the server to connect to the same database instance as all other members of the cluster, by setting the DB Type, DB Host, DB Port or Instance and DB Name to the same values as those used for the other members.
You must also set the Database Administrator Account User ID and Password to the same values as those used for the other Management Servers that share the same HA partition name.
1
Open the file <foglight_home>/config/server.config on each Management Server that you want to participate in the HA cluster.
2
Locate and uncomment the parameter server.ha.partition.name.
3
Set the argument of server.ha.partition.name to the partition name for your HA cluster.
a
server.database.host: Set the argument of this parameter to the Foglight database host name (or IP address).
b
server.database.port: Set the argument to the Foglight database port number.
c
server.database.name: Set the argument to the Foglight database name.
d
server.database.user: Set the argument to the Foglight database user name.
e
server.database.password: Set the argument to the Foglight database user password.
f
server.database.type: Set the argument to the type of database used (mysql, oracle, or sqlsvr).
6
Restart the Foglight Management Server in HA mode by navigating to <foglight_home>/bin and running the following command:

Starting and stopping the server in High Availability mode

To run the Foglight® Management Server in HA mode, you must use an external database, which must be running before you start the server.

Do one of the following:

(Windows only) Choose Start > Programs > Quest > Foglight > High Availability > Start Foglight In HA Mode.

After the server starts successfully, the following message appears in the command shell or window:

Forge Server startup completed.

Do either of the following:

Type Ctrl-C in the command shell in which the Foglight HA server started.
(Windows only) Choose Start > Programs > Quest > Foglight > High Availability > Stop Foglight In HA Mode.
Open a second command shell, navigate to the directory <foglight_home>/bin, and execute the following command:
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