Distributed Systems Administration Utilities User's Guide

1. Run /opt/dsau/sbin/syslog-ng with the -s or --syntax-only option to verify
the syntax of the /etc/syslog-ng.conf file. This should be a symbolic link to /etc/
syslog-ng.conf.server as described previously.
2. Start syslog-ng using /sbin/init.d/syslog-ng start.
3. If consolidating the local syslogs, use logger test-message and make sure this
message is in the consolidated syslog.log. If you are not consolidating the local logs,
use the logger command from a log forwarding client. Note that the logger messages
are first sent to the local syslog which forwards them to syslog-ng. syslogd by
default suppresses duplicate messages. If you issue multiple logger test messages, make
sure each is unique.
3.3.2.2 Manually Configuring a Serviceguard Cluster as a Log Consolidation Server
Configuring a Serviceguard cluster as a log consolidation server is similar to the steps for a single
system. All cluster members must be up and accessible before proceeding.
Create the configuration files described below on every cluster member. The simplest approach
is to configure one member completely and then copy each configuration file cluster-wide. The
cexec and ccp tools can simplify replicating changes cluster-wide.
For a cluster configuration, syslog-ng is configured as a package so the log consolidation
service is highly available. The package must be named clog and the package configuration
files require the following information:
• Registered IP address and DNS name for the clog package
• The subnet associated with that IP address
• Cluster-wide storage configuration using LVM or VxVM
• A filesystem configured on the cluster-wide storage, that can be VxFS or CFS. Since
consolidated logs grow rapidly, HP recommends that the filesystem be configured using
the largefiles option and that there is room for growth.
Complete IP address registration and storage/filesystem configuration before continuing. For
additional information on creating the Serviceguard storage/filesystem configuration for a
package, refer to the Managing Serviceguard manual.
For an overview of how to configure consolidated logging in a cluster, see the section “Cluster
Configuration Notes for clog” (page 52).
3.3 Log Consolidation Configuration 59