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HP Insight Control Software for Linux User Manual

Page 225

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Corrective Actions

Cause/Symptom

# /etc/init.d/apache2 stop
# /etc/init.d/apache2 startssl

Verify that the php RPM and its required dependencies are
on your CMS.

Nagios startup error: The browser displays a directory list
of Nagios files instead of the Nagios main window.

To verify on a RHEL CMS:

# rpm -qa | grep php

To verify on a SLES CMS:

# rpm -qa | grep php5

Use the rpm command to install the php RPM and its
required dependencies.

Run the following commands to resynchronize the
vars.ini

file across all managed systems:

Nagios “Management Settings Monitor” service reports
vars warning

# cd /opt/hptc/nagios/libexec
# ./check_nagios_vars --update

Remove the nagios_vars.db file:

Nagios services report a non-OK status

Under very rare circumstances, the Nagios cache might
become unsynchronized. If this occurs, it is possible that
some Nagios services do not operate correctly.

# rm /opt/hptc/nagios/etc/nagios_vars.db

Ensure that all Nagios services associated with the
managed systems have:

Nagios services report WARNING status because "data is
stale"

Active Checks

set to DISABLED

Passive Checks

set to ENABLED

All passive services should have a red "p" next to the
service name.

The following monitor services are the only active services;
they reside on the CMS (nh) only:

Apache HTTPS Server

Configuration Montor

IP Assignment - DHCP

Management Settings Monitor

Nagios Monitor

Sensor Collection Monitor

Supermon Metrics Monitor

Switch Data Collection

Syslog Alert Monitor

Systems Event Log Monitor

IMPORTANT:

This is the default configuration required

by Insight Control for Linux; this configuration is set after
running the Options

→IC-Linux→Configure Management

Services task. Do not alter these settings from the default
configuration.

Run the following commands to restart mond on all
managed systems:

Nagios services might report warning

Nagios services might report WARNING - No sensor
data is available or Data is stale

.

# pdsh -w `shownode servers nagios_monitor`
/etc/init.d/supermon restart
# pdsh -a -x `shownode servers
nagios_monitor` /etc/init.d/mond restart

Use the following procedure to update the default
thresholds in the /opt/hptc/nagios/etc/

Nagios generates CRITICAL or WARNING Alerts for the
Nodeinfo service

25.14 Nagios Troubleshooting 225