System properties

Documented Properties

This list is not exhaustive; some properties critical to core functions may been purposely omitted as they should never be changed. Many of the properties here are documented with much greater detail in their relevant sections.

Command Default Value Description

gwt.openlayers.name

"OpenNMS Default"

Used by mapping and geocoding; defined tile server friendly name

gwt.openlayers.options.attribution

"Map data © OpenStreetMap contributors under ODbL, CC BY-SA 2.0"

Used by mapping and geocoding; OSM attribution string

gwt.openlayers.url

"https://tiles.opennms.org/${z}/${x}/${y}.png"

Used by mapping and geocoding; default tile server URL

gwt.openlayers.userDefinedAsDefault

false

If true, the user-defined tile provider will appear first on the Geographical Map

importer.adapter.dns.level

0

Used by the forward and reverse DNS provisiong adapters; define the default level dns domain for nodelabel

importer.adapter.dns.privatekey

null

TSIGKey private key the DnsProvisioningAdapter should use for dynamic DNS updates

importer.adapter.dns.reverse.level

0

Used by the forward and reverse DNS provisiong adapters; define the default level reverse dns domain for nodelabel

importer.adapter.dns.server

127.0.0.1

IP address of the DNS server to which the DnsProvisioningAdapter should send dynamic DNS updates

irccat.host

127.0.0.1

Hostname or IP address used by the IRCcat notification strategy

irccat.port

12345

Port number used by IRCcat notification strategy

opennms.alarmlist.sound.enable

false

If true, enable "alarm sounds" on Alarm List Pages

opennms.alarmlist.sound.status

off

When the Alarm List Pages generates sounds; off = no sounds, newalarm = for every new alarm in the page, newalarmcount = every increase in alarm event count for displayed alarms

opennms.alarmlist.unackflash

false

Allows the alarm list page to display acknowleged and unacknowledged alarms on the same list but unacknowledged alarms flash until they are acknowledged

opennms.alarmTroubleTicketLinkTemplate

"http://localhost/Ticket/Display.html?id=${id}"

The link template used by the alarm ticketer plugin

opennms.applicationsWithProblems.show

true

If true display the "Applications with Pending Alarms" box on the front page in the OpenNMS web UI

opennms.assets.allowHtmlFields

null

Asset fields strip markup. To allow markup in specific asset fields, set the value to a comma-separated list of the asset field names that require markup

opennms.businessServicesWithProblems.show

true

If true display the "Business Services with Pending Alarms" box on the front page in the OpenNMS web UI

opennms.eventdetail.parmsRoles

ROLE_USER

If opennms.eventdetail.showParms is true, you may also specify roles that can see parameters in a comma separated list

opennms.eventdetail.showParms

false

Show a table containing all event parameters on the event detail page

opennms.eventlist.acknowledge

false

Show or hide the Acknowledge event button

opennms.minion.provisioning

true

Enable the automatic, heartbeat-based provisioning mechanism for Minions

opennms.minion.provisioning.foreignSourcePattern

"Minions"

The pattern used to name the foreign source to provision minions. can contain a single %s placeholder which is replaced with the minion location

opennms.newsFeedPanel.show

true

Enable or disable the News Feed Panel on the front page in the OpenNMS web UI

opennms.newsFeedPanel.url

"https://www.opennms.com/feed/"

Set the News Feed URL for the News Feed Panel

opennms.nodeStatusBar.show

false

Enable or disable the status bar resume at the top of the node page in the OpenNMS web UI

opennms.nodesWithOutages.show

true

If true display the "Nodes with Outages" box on the front page in the OpenNMS web UI

opennms.nodesWithProblems.show

true

Enable or disable the "Nodes with Pending Alarms" box on the front page in the OpenNMS web UI

opennms.poller.server.serverHost

"127.0.0.1"

Analogous to java.rmi.server.hostname. Used to configure RMI

opennms.productUpdateEnrollment.show

true

Enables or disables display of the Product Update Enrollment popup in the Web UI; false will disable the popup and prevent any data being sent

opennms.report.dir

"${install.share.dir}/reports"

The directory used for Database Reports

opennms.situations.show

true

Enable or disable the Situations box on the front page in the OpenNMS web UI

opennms.ticketer.plugin

"org.opennms.netmgt.ticketd.NullTicketerPlugin"

The ticket plugin implementation to use to create tickets via the Alarm details pages (if configured)

org.opennms.collectd.instrumentationClass

"org.opennms.netmgt.collectd.DefaultCollectdInstrumentation"

The Collectd Instrumentation class, used for the instrumentation log and reader

org.opennms.dao.ipinterface.findByServiceType

"select distinct ipInterface from OnmsIpInterface as ipInterface join ipInterface.monitoredServices as monSvc where monSvc.serviceType.name = ?"

Used by IpInterfaceDaoHibernate to allow a custom SQL query to look up ipinterfaces by service

org.opennms.dashboard.redirect

false

Controls whether users will be redirected to the dashboard page after a successful login

org.opennms.eventd.eventTemplateCacheSize

1000

Defines the size of the event parsing cache

org.opennms.features.apilayer.mapping.nodeCacheSpec

"maximumSize=10000,expireAfterWrite=15m"

Cache specification for node objects used in alarms

org.opennms.geomap.defaultSeverity

"Normal"

Minimum alarm severity for the node to be displayed on the geomap

org.opennms.geomap.defaultStrategy

"Alarms"

The strategy used to calculate each node’s status for the geomap

org.opennms.grafanaBox.apiKey

null

Grafana API key used to fetch Grafana dashboards displayed in the Grafana Box widget

org.opennms.grafanaBox.basePath

null

Grafana base path to be used fetch dashboards via API to display in the Grafana Box widget

org.opennms.grafanaBox.connectionTimeout

500

Timeout value used by the Grafana Box widget

org.opennms.grafanaBox.dashboardLimit

0

Upper limit to the number of dashboards to fetch and display in the Grafana Box widget

org.opennms.grafanaBox.hostname

"localhost"

Hostname used to fetch dashboards via API for the Grafana Box widget

org.opennms.grafanaBox.link.basePath

null

Base path used to build links in the Grafana Box widget

org.opennms.grafanaBox.link.hostname

"localhost"

Hostname used to build dashboard links for the Grafana Box widget

org.opennms.grafanaBox.link.port

3000

Port used to build dashboard links for the Grafana Box widget

org.opennms.grafanaBox.link.protocol

"http"

Protocol used to build dashboard links for the Grafana Box widget

org.opennms.grafanaBox.port

3000

Port used to fetch dashboards for the Grafana Box widget

org.opennms.grafanaBox.protocol

"http"

Protocol used to fetch dashboards via API for the Grafana Box widget

org.opennms.grafanaBox.show

false

Enable or disable the Grafana Box widget showing the available Grafana dashboards on the front page in the OpenNMS web UI

org.opennms.grafanaBox.soTimeout

500

Timeout value used by the Grafana Box widget

org.opennms.grafanaBox.tag

null

Only display dashboards in the Grafana Box that match this tag

org.opennms.heatmap.defaultHeatmap

"categories"

The default heatmap can be set wiht a value of categories, foreignSources or monitoredServices.

org.opennms.heatmap.defaultMode

"alarms"

There are two modes for operating the heatmap. Valid options are alarms and outages

org.opennms.interfaceAvailabilityBox.maxInterfaceCount

10

The maximum number of interfaces before the availability box is hidden in the node page

org.opennms.jasperReportsVersion

Varies with OpenNMS version

Defines the Version of the Jasperreports libraryaused for database reports

org.opennms.netmgt.asterisk.agi.listenAddress

127.0.0.1

If you are using the built-in Asterisk Gateway Interface (AGI) server to integrate with an external Asterisk server, this property should be set to an IP address on the OpenNMS server that is reachable from the Asterisk server

org.opennms.netmgt.asterisk.agi.listenPort

4573

A port other than the default for the the built-in Asterisk Gateway Interface

org.opennms.netmgt.asterisk.agi.maxPoolSize

10

Thread pool size for the built-in Asterisk Gateway Interface

org.opennms.netmgt.collectd.SnmpCollector.forceRescan

false

Enable or disable the SNMP Collector’s ability to force rescans when the interface count changes

org.opennms.netmgt.icmp.best.timeout

500

The default timeout used when dynamically determining the best pinger implementation

org.opennms.netmgt.icmp.pingerClass

"org.opennms.netmgt.icmp.best.BestMatchPinger"

The default ICMP implementation class.

org.opennms.netmgt.icmp.requireV4

"detect"

Used to to force IPv4 ICMP support explicitly

org.opennms.netmgt.icmp.requireV6

"detect"

Used to to force IPv6 ICMP support explicitly

org.opennms.netmgt.search.info

null

By default the central search shows only the found nodes and the corresponding matched field. This property allows you to add an additional field where you can use a meta-data DSL expression

org.opennms.netmgt.vmmgr.emitStandardFileNotFoundWarnings

true

Enable or disable display of standard "file not found" warnings during startup

org.opennms.newts.config.datacenter

"datacenter1"

Cassandra datacenter used by NewTS

org.opennms.newts.config.driver_settings_file

null

Driver settings file for the built-in Cassandra client used by NewTS

org.opennms.newts.config.hostname

"localhost"

Comma-separated of list IP address or hostnames of the Cassandra nodes

org.opennms.newts.config.keyspace

"newts"

Name of the Cassandra keyspace to use for NewTS

org.opennms.newts.config.max_batch_size

16

Maximum number of records to insert in a single Cassandra transaction

org.opennms.newts.config.password

"cassandra"

Password to use when connecting to Cassandra

org.opennms.newts.config.port

9042

Port used to connect to the Cassandra nodes

org.opennms.newts.config.read_consistency

"ONE"

Consistency level for read operations

org.opennms.newts.config.resource_shard

604800

Time (in seconds) that NewTS samples are stored at the same key

org.opennms.newts.config.ttl

31540000

Number of seconds after which NewTS samples will automatically be deleted

org.opennms.newts.config.username

"cassandra"

Username to use when connecting to Cassandra

org.opennms.newts.config.write_consistency

"ANY"

Consistency level for Cassandra write operations

org.opennms.protocols.icmp.interfaceJar

null

This path is added to the opennms.classpath at startup

org.opennms.provisiond.enableDiscovery

true

Enable or disable the handling of new suspect events in provisiond and periodic scanning of discovered nodes

org.opennms.provisiond.resolveMissingCoordinatesFromAddressString

"true"

Used to control if address asset strings are resolved to longitude/latitude coordinates when a geocoder service is available and the node does not have existing lat/lon coordinates

org.opennms.provisiond.reverseResolveRequisitionIpInterfaceHostnames

true

Whether or not to perform a reverse look up hostnames for a node’s IP addresses during the provisioning’s audit phase

org.opennms.provisiond.scheduleRescanForUpdatedNodes

true

Enable or disable rescans of existing nodes following synchronization of a requistion

org.opennms.rrd.fileExtension

null

Define a custom file extension to use for timeseries (rrd) data files

org.opennms.rrd.interfaceJar

null

This path is added to the opennms.classpath at startup

org.opennms.rrd.storeByForeignSource

false

Store RRDs by foreignSource/ForeignId rather than database nodeId

org.opennms.rrd.strategyClass

"org.opennms.netmgt.rrd.rrdtool.MultithreadedJniRrdStrategy"

Which RrdStrategy implementation to use for writing data to RRD files

org.opennms.rrd.usetcp

false

Enable or disable exporting performance data to an external system over a TCP port

org.opennms.security.disableLoginSuccessEvent

false

Enable or disable sending successful login events on a successful login to the webui

org.opennms.snmp.mib-compiler.default-graph-template.color

"#00ccff"

Sets the default color for graphs generated by the MIB Compiler

org.opennms.statusbox.elements

"business-services,nodes-by-alarms,nodes-by-outages"

Controls which elements are shown in the Status Box on the front page in the OpenNMS web UI

org.opennms.threshd.value.decimalformat

"##.##"

Format rule used when setting the datasource value for threshold events

org.opennms.timeseries.strategy

"rrd"

Sets the strategy used to persist and retrieve time series metrics

org.opennms.web.aclsEnabled

false

Enable ACL support in the webapp. When ACLs enabled then visible Nodes, Alarms, Events, and others are filtered according to categories

org.opennms.web.assets.minified

true

Whether to use minified web assets

org.opennms.web.assets.path

null

A filesystem path fromwhich to load web assets

org.opennms.web.console.centerUrl

"status/status-box.jsp,/includes/categories-box.jsp,/geomap/map-box.jsp"

Controls the content that will be displayed in the middle box of the front page

org.opennms.web.defaultGraphPeriod

"lastday"

Set the default time period when rendering graphs

org.snmp4j.smisyntaxes

"opennms-snmp4j-smisyntaxes.properties"

Enable various workarounds for buggy SNMP agents

rrd.base.dir

"/opt/opennms/share/rrd"

Base directory for storing RRD files

rrd.binary

"/usr/bin/rrdtool"

RRD binary path (only used if the JniRrdStrategy is used)

rscript.binary

"Rscript"

Location of the rscript binary used by the R integration

sftp.private-key.location

null

Used by the XmlCollector for experimental SSH Private/Public keys authentication