Performance Settings

These options allow you to select which pages are used in the Nagios XI web interface.

Non-unified pages provide dynamic updates via Ajax and let users add certain sections of the page to their dashboards, but incur a higher performance hit than unified pages. Unified pages offer higher performance than non-unified pages, but do not offer users the ability to add portions of the page to their dashboards.

Page Settings

	Use Unified Tactical Overview
	Use Unified Hostgroup Screens
	Use Unified Servicegroup Screens

Status Page Settings

Object status retries:	Number of times to retry before showing object does not exist message in host/service status pages. One retry per second.

Global Dashlet Settings

Dashlet Refresh Multiplier:	Number of milliseconds to multiply individual dashlet refresh rates by. Defaults to 1000 (1 second).

Dashlet Refresh Rates

Number of time units (usually seconds) between dashlet refreshes. Lower numbers increase system load, while higher numbers decrease load. Refresh rates specified below are multiplied by the refresh multiplier specified above.

Administrative Tasks:
Available Updates:
Feature Status Tac Summary:
Getting Started:
Host Comments:
Host Detailed State Info:
Host State Info:
Host State Quick Actions:
Host Advanced Status Attributes:
Host Status State Summary:
Host Status Summary:
Host Status Table:
Host Status TAC Summary:
Hostgroup Status Grid:
Hostgroup Status Overview:
Hostgroup Status Summary:
Legacy Network Status Map:
Network Health:
Network Outages:
Network Outages Summary:
Page Top Alert Content:
Performance Graphs:
Service Comments:
Service Detailed State Info:
Service State Info:
Service State Quick Actions:
Service Advanced Status Attributes:
Service Status State Summary:
Service Status Summary:
Service Status Table:
Service Status TAC Summary:
Servicegroup Status Grid:
Servicegroup Status Overview:
Servicegroup Status Summary:
Component Status:
Monitoring Engine Process:
Monitoring Engine Check Statistics:
Server Statistics:
Monitoring Engine Event Queue Chart:
Monitoring Engine Performance:

These options allow you to specify data retention, and optimization intervals for the databases Nagios XI uses.

Nagios XI Database

Max Commands Age:	Max time in minutes to keep commands.
Max Events Age:	Max time in minutes to keep events.
Max SNMP Trap Age:	Max time in DAYS to store SNMP trap data in the database.
Max Expired Auth Token Age:	Max time in HOURS to store expired auth tokens in the database.
Max Expired Session Age:	Max time in HOURS to store expired (no longer active) session data in the database.
Max Audit Log Age:	Max to keep audit log entires in days.
Optimize Interval:	Max time in minutes between optimization runs.

NDO Database

Max External Commands Age:	Max time in DAYS to keep external commands.
Max Log Entries Age:	Max time in DAYS to keep log entries.
Max Notifications Age:	Max time in DAYS to keep notifications.
Max State History Age:	Max time in DAYS to keep state history information.
Max Timed Events Age:	Max time in minutes to keep timed events.
Max System Commands Age:	Max time in minutes to keep system commands.
Max Service Checks Age:	Max time in minutes to keep service checks.
Max Host Checks Age:	Max time in minutes to keep host checks.
Max Event Handlers Age:	Max time in minutes to keep event handlers.
Max Comment History Age:	Max time in minutes to keep comment history.
Optimize Interval:	Max time in minutes between optimization runs.

CCM Database

Max Logbook Age:	Max time in minutes to keep logbook records.
Optimize Interval:	Max time in minutes between optimization runs.

These options allow you to enable/disable certain ongoing subsystem processes of Nagios XI.

Disabling Outbound Data Transfers and listening for Unconfigured Objects will result in a slight decrease in CPU usage, and disabling subsystem logging will reduce disk activity for subsystem processes.
NOTE: Disabling Outbound Transfers will stop any currently defined outbound transfers. Outbound settings can be viewed here.

Subsystem Options

	Enable Outbound Data Transfers
	Enable Listener For Unconfigured Objects
	Enable Subsystem Logging
	Enable BPI sync on Apply Config (this option can also be changed in the BPI settings page)

BPI Sync NDO Startup Timeout:

Amount of seconds to wait for NDO to startup when syncing BPI after apply config.

Edit performance settings for auto-running pages such as reports, metrics, etc.

Auto-running Page Performance Options

	Disable reports from automatically running on page load
	Disable metrics from loading on page load

Edit settings relating to the Backend Cache. This is used to cache some of the calls to the database.

• This can considerably improve performance on systems that perform a lot of host and/or service checks.
• Enabling this feature on systems with a lower amount of checks (< 1,000) will be detrimental to performance and is not recommended.
• Enabling this feature on systems that add or remove hosts and/or services frequently is not recommended.

Backend Cache Settings

Enable Backend Cache
Backend Cache Location	Change the location of the backend cache, just make sure that the new location has write permissions for the apache user.
Backend Cache Expiration Time	How long will a particular cache exist? Measured in seconds.

Maximum Backend Cache Performance

In order to take full advantage of the Backend Cache, you might want to ensure that your Backend Cache Location is writing to RAM instead of disk.

To create a 512 MB RAM Disk to hold the cache data, console in to your Nagios XI server as root, and execute the following command:

mount -t tmpfs -o size=512m tmpfs /usr/local/nagiosxi/tmp/backendcache

Select the amount of different kinds of snapshots to keep. You must keep at least the last one good CCM and Core snapshot.

Number of Core Snapshots
Number of Error Snapshots
Number of CCM Snapshots	(This must be equal or greater than number of Core snapshots)