Configuring multiple servers using HA mode offers the following benefits:
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Automatic restart: The restart process (FoglightHA Daemon) runs on the same host as the Management Server it is monitoring and monitors the state of the server. If the server stops responding or has a fatal error, then the restart process stops and restarts the server automatically. The process can also send out email notifications about various conditions of the server. |
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Standby Server: To reduce outage times, a standby server instance is created (for a particular Foglight Management Server), and forms a partition. One server becomes the primary server and communicates with the agents, receives and processes data, and processes rules. All other servers are standby servers. If a primary server stops responding, one of the standby servers resumes service and becomes the primary server. |
If you plan to run the Management Server in HA mode, there are certain considerations:
For more information about installing and configuring HA mode, see the High Availability Field Guide.
An external instance of the Oracle® database can be used if your database administrator has installed one. Please see the System Requirements and Platform Support Guide for information about the external databases supported by Foglight.
This section provides information about licensing for Foglight.
IMPORTANT: See the Administration and Configuration Guide for information about license requirements, managing licenses, and the different categories of cartridges (based on their license requirements). |
You can install a license file during installation if you perform a Custom Install. See Step 13: Add Foglight license file in Installing a new version of the Management Server.
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Move an existing license file into the <foglight_home>/license folder. |
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Ensure that JAVA_HOME is set. |
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NOTE: See the Command-Line Reference Guide for information about running the fglcmd utility and the options that can be used with fglcmd, including additional license-management commands. |
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