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Foglight 5.9.2 - High Availability Field Guide

Table of Contents

High Availability mode overview

Capabilities Use cases Known issues Requirements

Managing High Availability mode

Enabling High Availability mode Starting and stopping the server in High Availability mode Redirecting secondary Management Servers to the correct URL

Remote Monitor Enabling email notification for High Availability

Starting and stopping the HA server from the command line

fmsha remotemonitor

Examples

Configuring High Availability mode ports

Configuring the cluster multicast port used in HA mode

Important considerations for configuring HA over WAN Security considerations for HA configuration Exploring the High Availability view Configuring Foglight Agent Manager for HA mode Upgrading cartridges in a High Availability environment Troubleshooting FAQ

Common configuration scenarios

Running on Oracle RAC

Running behind an HTTP proxy

Running in a cluster

Tuning connection issues in HA implementations

Tuning the Management Server Managing hosts with multiple network interfaces

JDK with IPv6 on Linux Foglight Management Server automatically restarted Other JGroup-related issues

Other JGroup-related issues

ERROR org.jgroups.protocols.UDP max_bundle_size (64000_ is greater than the largest TP fragmentation size (8000):

https://jira.jboss.org/browse/JGRP-798

“Cross talk” can occur between servers on different clusters:

https://jira.jboss.org/browse/JGRP-614

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