Installation Guide

1. Basic Installation of OpenNMS

The OpenNMS platform can be installed in several ways. This guide describes the installation of the platform on RHEL-, Debian- and Microsoft Windows based operation systems. Installable pre-compiled software packages are provided through RPM and Debian repository servers. Running OpenNMS requires the following components:

Internet access to download and verify installation packages from public repository server
Installed Oracle Java 8 environment
PostgreSQL 9.1+ data base
Set link to section which describes to install with RRDTool. Optional RRDtool to persist long term performance data

OpenJDK 8 can be used, but for production and critical environments Oracle Java 8 is recommended.

${OPENNMS_HOME} is referred to the path OpenNMS is installed to. On RHEL-based systems it is /opt/opennms on Debian-based systems it is /usr/share/opennms. The environment in Microsoft Windows can refer to C:\Program Files\opennms

With the opennms meta package all dependencies needed for the components mentioned above are maintained. The following sections describe how to install OpenNMS on a single system. Dependencies for Java and the PostgreSQL data base are maintained with the opennms meta installation package.

1.1. Repositories for Releases

Installation packages are available for different releases of OpenNMS. The configuration of the repository decides which OpenNMS release will be installed.

The following releases are available for installation:

Table 1. *OpenNMS* release name convention
Release	Description
`stable`	Latest stable release
`testing`	Release candidate for next stable
`snapshot`	Latest successful develop build
`branches/${BRANCH-NAME}`	Install from a specific branch name, e.g. `branches/features-newts` installs the repository for the Newts development branch. Branches can be found in http://yum.opennms.org/branches/ or http://debian.opennms.org/dists/branches/
`branches/${RELEASE}`	Install a specific release, e.g. `branches/release-14.0.3`. This release branches are also found in http://yum.opennms.org/branches/ or http://debian.opennms.org/dists/branches/

To install a different release the repository files have to be installed and manually modified.

1.1.1. Specific Release on RHEL-based system

Installation of release specific repositories

rpm -Uvh http://yum.opennms.org/repofiles/opennms-repo-${RELEASE}-rhel7.noarch.rpm(1)
rpm --import http://yum.opennms.org/OPENNMS-GPG-KEY

1	Replace `${RELEASE}` with a release name like `testing` or `snapshot`.

Install OpenNMS with YUM following the normal installation procedure.

Installation of the full OpenNMS application with all dependencies

yum install opennms

Verify the release of OpenNMS packages with yum info opennms.

1.1.2. Specific Release on Debian-based system

Create a new apt source file (eg: /etc/apt/sources.list.d/opennms.list), and add the following 2 lines:

Package repository configuration for Debian-based systems

deb http://debian.opennms.org ${RELEASE} main (1)
deb-src http://debian.opennms.org ${RELEASE} main (1)

1	Replace `${RELEASE}` with a release name like `testing` or `snapshot`.

Import the packages' authentication key with the following command:

GPG key import for Debian-based systems

wget -O - http://debian.opennms.org/OPENNMS-GPG-KEY | apt-key add -

Run apt-get update and install OpenNMS with apt following the normal installation procedure.

Verify the release of OpenNMS packages with apt-cache show opennms.

1.2. Installing on RHEL-based system

This section describes how to install the OpenNMS platform on CentOS 7.1. The setup process is described in the following steps:

Install OpenNMS YUM repository server with GPG key to verify packages
Installation of the opennms meta package which handles all dependencies
Initialize PostgreSQL database and configure access
Initialize OpenNMS and first start of the application

1.2.1. Setup OpenNMS YUM repository

Installation of stable repository and GPG key

rpm -Uvh http://yum.opennms.org/repofiles/opennms-repo-stable-rhel7.noarch.rpm
rpm --import http://yum.opennms.org/OPENNMS-GPG-KEY

1.2.2. Install OpenNMS package

Installation of the full application with all dependencies like PostgreSQL and Java

yum -y install opennms

The following packages will be automatically installed:

opennms: The platform meta package which handles all dependencies from OpenNMS repository.
jicmp6 and jicmp: Java bridge to allow sending ICMP messages from OpenNMS repository.
opennms-core: OpenNMS core services, e.g. Provisiond, Pollerd and Collectd from OpenNMS repository.
opennms-webapp-jetty: OpenNMS web application from OpenNMS repository
jdk1.8: Oracle Java 8 environment from OpenNMS respository
postgresql: PostgreSQL database server from distribution repository
postgresql-libs: PostgreSQL database from distribution repository

With the successful installed packages the OpenNMS platform is installed in the following directory structure:

[root@localhost /opt/opennms]# tree -L 2
.
└── opennms
   ├── bin
   ├── contrib
   ├── data
   ├── deploy
   ├── etc
   ├── jetty-webapps
   ├── lib
   ├── logs -> /var/log/opennms
   ├── share -> /var/opennms
   └── system

1.2.3. Prepare PostgreSQL

The CentOS package installs but doesn’t initialize the PostgreSQL database directory. Additionally OpenNMS requires authentication to access the database and are described in this section. Initialize the database directory with

Initialization of the PostgreSQL database

postgresql-setup initdb

System startup configuration for PostgreSQL

systemctl enable postgresql

Startup PostgreSQL database

systemctl start postgresql

The next step is setting the postgres super user password and creating an opennms database user with password. Additionally it is required to configure the authentication method to allow authentication from the local network.

Accounting and database management for OpenNMS

su - postgres
createuser -P opennms
createdb -O opennms opennms
exit

Set password for Postgres super user

su - postgres
psql -c "ALTER USER postgres WITH PASSWORD 'YOUR-POSTGRES-PASSWORD';"
exit

The super user is required to be able to initialize and change the database schema for installation and updates.

To allow OpenNMS access to the database over the local network PostgreSQL has to be configured.

vi /var/lib/pgsql/data/pg_hba.conf

Configuration of network access for PostgreSQL

host    all             all             127.0.0.1/32            md5(1)
host    all             all             ::1/128                 md5(1)

1	Change method from `ident` to `md5` for IPv4 and IPv6 on localhost.

Apply configuration changes for PostgreSQL

systemctl reload postgresql

In the next step configure the OpenNMS database configuration.

vi ${OPENNMS_HOME}/etc/opennms-datasources.xml

Configuration for database authentication in OpenNMS

<jdbc-data-source name="opennms"
                    database-name="opennms"
                    class-name="org.postgresql.Driver"
                    url="jdbc:postgresql://localhost:5432/opennms"
                    user-name="** YOUR-OPENNMS-USERNAME **"(1)
                    password="** YOUR-OPENNMS-PASSWORD **" />(2)

<jdbc-data-source name="opennms-admin"
                    database-name="template1"
                    class-name="org.postgresql.Driver"
                    url="jdbc:postgresql://localhost:5432/template1"
                    user-name="postgres"(3)
                    password="** YOUR-POSTGRES-PASSWORD **" />(4)

1	Set the user name to access the OpenNMS database table
2	Set the password to access the OpenNMS database table
3	Set the postgres user for administrative access to PostgreSQL
4	Set the password for administrative access to PostgreSQL

1.2.4. Initialize OpenNMS

OpenNMS is now configured to access the database. It is required to set the Java environment running OpenNMS and initialize the database schema.

Configuration of Java environment for OpenNMS

${OPENNMS_HOME}/bin/runjava -s

Initialization of database and system libraries

${OPENNMS_HOME}/bin/install -dis

System startup configuration for OpenNMS

systemctl enable opennms

Startup OpenNMS

systemctl start opennms

After starting OpenNMS the web application can be accessed on http://<ip-or-fqdn-of-your-server>:8980/opennms. The default login user is admin and the password is initialized to admin.

Change the default admin password to a secure password immediately.

1.3. Install on Debian-based systems

This section describes how to install the OpenNMS platform on Ubuntu 14.04 LTS. The setup process is described in the following steps:

Install OpenNMS apt repository server with GPG key to verify packages
Installation of the opennms meta package which handles all dependencies
Initialize PostgreSQL database and configure access
Initialize OpenNMS and first start of the application

1.3.1. Setup OpenNMS Debian repository

OpenNMS can be installed with Installation of stable repository and GPG key

Installation of OpenNMS Debian repository

deb http://debian.opennms.org stable main
deb-src http://debian.opennms.org stable main

Installation of repository GPG key

wget -O - http://debian.opennms.org/OPENNMS-GPG-KEY | apt-key add -

Update apt repository cache

apt-get update

1.3.2. Install OpenNMS package

Installation of the full application with all dependencies like PostgreSQL and Java

apt-get install -y opennms

The following packages will be automatically installed:

opennms: The platform meta package which handles all dependencies from OpenNMS repository.
jicmp6 and jicmp: Java bridge to allow sending ICMP messages from OpenNMS repository.
opennms-core: OpenNMS core services, e.g. Provisiond, Pollerd and Collectd from OpenNMS repository.
opennms-webapp-jetty: OpenNMS web application from OpenNMS repository
jdk1.8: Oracle Java 8 environment from OpenNMS respository
postgresql: PostgreSQL database server from distribution repository
postgresql-libs: PostgreSQL database from distribution repository

With the successful installed packages the OpenNMS platform is installed in the following directory structure:

[root@localhost /usr/share/opennms]# tree -L 2
.
└── opennms
   ├── bin
   ├── data
   ├── deploy
   ├── etc -> /etc/opennms
   ├── instances
   ├── jetty-webapps
   ├── lib -> ../java/opennms
   ├── logs -> /var/log/opennms
   ├── share -> /var/lib/opennms
   └── system

1.3.3. Prepare PostgreSQL

The Debian package installs also PostgreSQL database and is already initialized and added in the runlevel configuration. It is only necessary to start the PostgreSQL database without a restart.

Startup PostgreSQL database

service postgresql start

The next step is creating an opennms database user with password and configure the authentication method.

Accounting and database management for OpenNMS

su - postgres
createuser -P opennms
createdb -O opennms opennms
exit

It is not necessary to change the authentication method in pg_hba.conf, it is by default set to md5 for localhost connections.

Set password for Postgres super user

su - postgres
psql -c "ALTER USER postgres WITH PASSWORD 'YOUR-POSTGRES-PASSWORD';"
exit

The super user is required to be able to initialize and change the database schema for installation and updates.

vi ${OPENNMS_HOME}/etc/opennms-datasources.xml

Configuration for database authentication in OpenNMS

<jdbc-data-source name="opennms"
                    database-name="opennms"
                    class-name="org.postgresql.Driver"
                    url="jdbc:postgresql://localhost:5432/opennms"
                    user-name="** YOUR-OPENNMS-USERNAME **"(1)
                    password="** YOUR-OPENNMS-PASSWORD **" />(2)

<jdbc-data-source name="opennms-admin"
                    database-name="template1"
                    class-name="org.postgresql.Driver"
                    url="jdbc:postgresql://localhost:5432/template1"
                    user-name="postgres"(3)
                    password="** YOUR-POSTGRES-PASSWORD **" />(4)

1	Set the user name to access the OpenNMS database table
2	Set the password to access the OpenNMS database table
3	Set the postgres user for administrative access to PostgreSQL
4	Set the password for administrative access to PostgreSQL

1.3.4. Initialize OpenNMS

OpenNMS is now configured to access the database. It is required to set the Java environment running OpenNMS and initialize the database schema.

Configuration of Java environment for OpenNMS

${OPENNMS_HOME}/bin/runjava -s

Initialization of database and system libraries

${OPENNMS_HOME}/bin/install -dis

It is not necessary to add OpenNMS to the run level manually, it is automatically added after setup.

Startup OpenNMS

service opennms start

After starting OpenNMS, the web application can be accessed on http://<ip-or-fqdn-of-your-server>:8980/opennms. The default login user is admin and the password is initialized to admin.

Change the default admin password to a secure password immediately.

1.4. Install on Microsoft Windows Systems

OpenNMS is mostly developed on Unix/Linux based systems, nevertheless it is possible to install the platform on Microsoft Windows operating systems. To install the application a graphical installer is provided and can be used to install OpenNMS on Microsoft Windows. This section describes how to install the OpenNMS platform on Microsoft Windows 2012 Server.

The standalone installer for Microsoft Windows is only available for the most recent stable version of OpenNMS.

It is required to have Oracle JDK 8 installed. The JRE is NOT sufficient.

To edit OpenNMS configuration files on Microsoft Windows the tool Notepad++ can deal with the formatting of .property and .xml files.

The setup process is described in the following steps:

Installation of PostgreSQL database service
Download and install the graphical OpenNMS installer
First start of the OpenNMS application

1.4.1. Installation PostgreSQL

PostgreSQL is available for Microsoft Windows and latest version can be downloaded from Download PostgreSQL page. Follow the on-screen instructions of the graphical installer.

The placeholder {PG-VERSION} represents the PostgreSQL version number. A version of 9.1+ is required for OpenNMS.

The following information has to be provided:

Installation directory for PostgreSQL, e.g. C:\Program Files\PostgreSQL{PG-VERSION}
Password for the database superuser (postgres), this password will be used during the OpenNMS setup.
Port to listen for PostgreSQL connections, default is 5432 and can normally be used.
Locale for the database, keep [Default locale], if you change the locale, OpenNMS may not be able to initialize the database.

It is not required to install anything additional from the PostgreSQL Stack Builder.

The database data directory is automatically initialized during the setup and the postgresql-x64-{PG-VERSION} is already added as service and automatically started at system boot.

It is not necessary to change the authentication method in pg_hba.conf, it is by default set to md5 for localhost connections.

1.4.2. Install OpenNMS with GUI installer

For Microsoft Windows environments download the standalone-opennms-installer-{ONMS-VERSION}.zip file from the OpenNMS SourceForge repository. Extract the downloaded ZIP file.

The {ONMS-VERSION} has to be replaced with the latest stable version.

Start the graphical installer and follow the on screen instructions. The following information has to be provided:

Path to Oracle JDK, e.g. C:\Program Files\Java\jdk1.8.0_51
Installation path for OpenNMS, e.g. C:\Program Files\OpenNMS
Select packages which has to be installed, the minimum default selection is Core and Docs
PostgreSQL Database connection
- Host: Server with PostgreSQL running, e.g. localhost
- Name: Database name for OpenNMS, e.g. opennms
- Port: TCP port connecting to PostgreSQL server, e.g. 5432
- Username (administrative superuser): PostgreSQL superuser, e.g. postgres
- Password (administrative superuser): Password given during PostgreSQL setup for the superuser
- Username (runtime user for opennms): Username to connect to the OpenNMS database, e.g. opennms
- Password (runtime user for opennms): Password to connect to the OpenNMS database, e.g. opennms
Configure a discovery range for an initial node discovery. If you don’t want any discovery set begin and end to the same unreachable address.

Choose secure passwords for all database users and don’t use the example passwords above in production.

There is currently an open issue in the installer NMS-7831. Username and password are not written to the opennms-datasources.xml file and has to be changed manually. The initialize of the database will fail with an authentication error.

Configuration for database authentication in OpenNMS

<jdbc-data-source name="opennms"
                    database-name="opennms"
                    class-name="org.postgresql.Driver"
                    url="jdbc:postgresql://localhost:5432/opennms"
                    user-name="** YOUR-OPENNMS-USERNAME **"(1)
                    password="** YOUR-OPENNMS-PASSWORD **" />(2)

<jdbc-data-source name="opennms-admin"
                    database-name="template1"
                    class-name="org.postgresql.Driver"
                    url="jdbc:postgresql://localhost:5432/template1"
                    user-name="postgres"(3)
                    password="** YOUR-POSTGRES-PASSWORD **" />(4)

1	Set the user name to access the OpenNMS database table
2	Set the password to access the OpenNMS database table
3	Set the postgres user for administrative access to PostgreSQL
4	Set the password for administrative changes of the OpenNMS database table

After setting the username and passwords in opennms-datasources.xml re-run the graphical installer and also initialize the database. OpenNMS can be started and stopped with the start.bat and stop.bat script located in %OPENNMS_HOME%\bin directory.

After starting OpenNMS with the start.bat file the web application can be accessed on http://<ip-or-fqdn-of-your-server>:8980/opennms. The default login user is admin and the password is initialized to admin.

Change the default admin password to a secure password immediately.

The Wiki article Configuring OpenNMS as Windows Service describes how to create a Windows Service from the start.bat files. There is also a Java Wrapper which allows to install Java applications as Windows Service.

2. Installing Oracle Java Environment

Installing Oracle Java 8 requires external installation packages. These packages are provided from Oracle or 3rd party maintainer for the Debian and Ubuntu-based Linux Distributions. The following tools should be installed to follow this installation manual:

download files and tools with wget and curl
extract archives with tar
text manipulation with sed
Editor, e.g. vi, nano or joe
internet access

By downloading the Oracle Java 8 RPM installer you’ll accept the license agreement from Oracle which can be found on the Java distribution web site.

2.1. Setup on RHEL-based systems

This section describes how to install Oracle Java 8 on a RPM-based system like Red Hat Enterprise Linux 7 or CentOS 7.1.

Download Oracle JDK RPM

wget --no-cookies \
     --no-check-certificate \
     --header \
              "Cookie: oraclelicense=accept-securebackup-cookie" \
              "http://download.oracle.com/otn-pub/java/jdk/8u45-b14/jdk-8u45-linux-x64.rpm" \
     -O /tmp/jdk-8-linux-x64.rpm

Install Oracle JDK RPM file

yum install /tmp/jdk-8-linux-x64.rpm

2.2. Setup on Debian-based systems

This section describes how to install Oracle Java 8 on a Debian-based system like Debian 8 or Ubuntu 14.04 LTS.

Add Java repository from webupd8 maintainer

su -
echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main" | tee /etc/apt/sources.list.d/webupd8team-java.list
echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main" | tee -a /etc/apt/sources.list.d/webupd8team-java.list

Add repository key server and update repository

apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886
apt-get update

Install Oracle Java 8 installer

apt-get install -y oracle-java8-installer

2.3. Setup on Windows Server

This section describes how to install Oracle Java 8 on a system running the Microsoft Windows Server 2012 operating system.

Download the Microsoft Windows Java 8 installer with PowerShell or a browser

cd C:\Users\Administrator\Downloads
Invoke-WebRequest http://javadl.sun.com/webapps/download/AutoDL?BundleId=107944 -Outfile java8-installer.exe

Start the java8-installer.exe from the command line or with Windows Explorer from the Administrator’s Download folder.

The setup requires administrative privileges.

2.4. Java Environment

To provide Java, applications use the $JAVA_HOME environment variable. The environment can be set for a specific user or globally for the whole system on boot time.

Example path to Java on RHEL, Debian and Microsoft Windows systems

RHEL: /usr/java/jdk1.8.0_51
Debian: /usr/lib/jvm/java-8-oracle
Windows Server 2012: C:\Program Files\Java\jre1.8.0_51

2.4.1. Set Java home in Linux

Option 1: Set the Java environment for the current user

vi ~/.bash_profile
export JAVA_HOME=/path/to/java

Option 2: Set the Java environment for all users on boot time

vi /etc/profile
export JAVA_HOME=/path/to/java

2.4.2. Set Java home in Windows Server 2012

Option 1: Set JAVA_HOME as user specific system variable

setx "JAVA_HOME" "path\to\java"

Option 2: Set JAVA_HOME as a System variable

setx /M "JAVA_HOME" "path\to\java"

3. RRDtool as Time Series Database

In most Open Source application RRDtool is often used and is the de-facto open standard for Time Series Data. The basic installation of OpenNMS comes with JRobin enabled and it is possible to persist Time Series Data in RRDtool. This section describes how to install RRDtool, the jrrd2 OpenNMS Java Interface and how to configure OpenNMS to use it.

3.1. RRDtool Installation

RRDtool can be installed from the official package repositories provided by RHEL and Debian based Linux distributions.

Installation on RHEL/CentOS

yum install rrdtool

Installation of RRDtool on Debian/Ubuntu

apt-get install rrdtool

If you want to install the latest RRDtool from source, make sure the rrdtool binary is in search path. To make the setup easier, you can link the binary to /usr/bin/rrdtool which is the location OpenNMS will expect the executable binary.

3.2. Install jrrd2 Interface

To get access from the OpenNMS Java Virtual Machine you have to install jrrd2 as an interface. You can install it from the OpenNMS package repository with:

Installation of jrrd2 on RHEL/CentOS

yum install jrrd2

Installation of jrrd2 on Debian/Ubuntu

apt-get install jrrd2

With OpenNMS 17.0.0 it is preferred to use jrrd2 instead of jrrd. The jrrd2 module is improved for performance by adding multithreading capabilities.

3.3. Configuration of OpenNMS

To configure OpenNMS to use RRDtool instead of JRobin configure the following properties in rrd-configuration.properties.

Configuration of RRDtool in OpenNMS on RHEL/CentOS

org.opennms.rrd.strategyClass=org.opennms.netmgt.rrd.rrdtool.MultithreadedJniRrdStrategy
org.opennms.rrd.interfaceJar=/usr/share/java/jrrd2.jar
opennms.library.jrrd2=/usr/lib64/libjrrd2.so

Configuration of RRDtool in OpenNMS on Debian/Ubuntu

org.opennms.rrd.strategyClass=org.opennms.netmgt.rrd.rrdtool.MultithreadedJniRrdStrategy
org.opennms.rrd.interfaceJar=/usr/share/java/jrrd2.jar
opennms.library.jrrd2=/usr/lib/jni/libjrrd2.so

OpenNMS expects the RRDtool binary in /usr/bin/rrdtool.

Table 2. References to the RRDtool binary
Configuration file	Property
`opennms.properties`	`rrd.binary=/usr/bin/rrdtool`
`response-adhoc-graph.properties`	`command.prefix=/usr/bin/rrdtool`
`response-graph.properties`	`command.prefix=/usr/bin/rrdtool` `info.command=/usr/bin/rrdtool`
`snmp-adhoc-graph.properties`	`command.prefix=/usr/bin/rrdtool`
`snmp-graph.properties`	`command.prefix=/usr/bin/rrdtool` `command=/usr/bin/rrdtool info`

4. Installing Time Series database Newts

Newts is a time-series data store based on Apache Cassandra. Newts is a persistence strategy, that can be used as an alternative to JRobin or RRDtool.

It is currently not supported to initialize the Newts keyspace from Microsoft Windows Server operating system. Microsoft Windows based Cassandra server can be part of the cluster, but keyspace initialization is only possible using a _Linux-_based system.

4.1. Setting up Cassandra

It is recommended to install Cassandra on a dedicated server, but is also possible to run a node on the OpenNMS server itself. This installation guide describes how to set up a single Cassandra instance for evaluating and testing Newts. These steps are not suitable for a high performance production Cassandra Cluster. For further information see Cassandra Getting Started Guide. If you already have a running cluster you can skip this section.

4.1.1. Installing on RHEL-based systems

This section describes how to install the latest Cassandra 2.1.x release on a RHEL based systems for Newts. The first step is to add the DataStax community repository and install the required GPG Key to verify the integrity of the RPM packages. After that install the package with yum and the Cassandra service is managed by Systemd.

This description was built on RHEL 7 and CentOS 7.1.

Add the DataStax repository

vi /etc/yum.repos.d/datastax.repo

Content of the datastax.repo file

[datastax]
name = "DataStax Repo for Apache Cassandra"
baseurl = http://rpm.datastax.com/community
enabled = 1
gpgcheck = 1

Install GPG key to verify RPM packages

rpm --import http://rpm.datastax.com/rpm/repo_key

Install latest Cassandra 2.1.x package

yum install dsc21

Enable Cassandra to start on system boot

chkconfig cassandra on

Start cassandra service

service cassandra start

Verify whether the Cassandra service is automatically started after rebooting the server.

4.1.2. Installing on Debian-based systems

This section describes how to install the latest Cassandra 2.1.x release on a Debian-based system for Newts. The first step is to add the DataStax community repository and install the required GPG Key to verify the integrity of the DEB packages. After that install the packages with apt and the Cassandra service is added to the runlevel configuration.

This description was built on Debian 8 and Ubuntu 14.04 LTS.

Add the DataStax repository

vi /etc/apt/sources.list.d/cassandra.sources.list

Content of the cassandra.sources.list file

deb http://debian.datastax.com/community stable main

Install GPG key to verify DEB packages

wget -O - http://debian.datastax.com/debian/repo_key | apt-key add -

Install latest Cassandra 2.1.x package

apt-get update
apt-get install dsc21=2.1.10-1 cassandra=2.1.10

The Cassandra service is added to the runlevel configuration and is automatically started after installing the package.

Verify whether the Cassandra service is automatically started after rebooting the server.

4.1.3. Installing on Windows Server systems

This section describes how to install the latest Cassandra 2.1.x release on a Microsoft Windows Server based systems for Newts. The first step is to download the graphical installer and register Cassandra as a Windows Service so it can be manged through the Service Manager.

This description was built on Windows Server 2012.

Download the DataStax graphical installer for Cassandra from PowerShell or a Browser

cd C:\Users\Administrator\Downloads
Invoke-WebRequest http://downloads.datastax.com/community/datastax-community-64bit_2.1.10.msi -Outfile datastax-community-64bit_2.1.10.msi

Run the Windows Installer file from PowerShell or through Windows Explorer and follow the setup wizard to install. During the installation, accept the options to automatically start the services. By default the DataStax Server, OpsCenter Server and the OpsCenter Agent will be automatically installed and started.

The DataStax OpsCenter Server is only required to be installed once per Cassandra Cluster.

If you install the DataStax OpsCenter make sure you have Chrome or Firefox installed.

4.2. Configure OpenNMS

Once Cassandra is installed, OpenNMS can be configured to use Newts. To enable and configure Newts, set the following properties in ${OPENNMS_HOME}/etc/opennms.properties:

Configuration for OpenNMS

# Configure storage strategy
org.opennms.rrd.storeByForeignSource=true
org.opennms.timeseries.strategy=newts

# Configure Newts time series storage connection
org.opennms.newts.config.hostname=$ipaddress$
org.opennms.newts.config.keyspace=newts
org.opennms.newts.config.port=9042

The org.opennms.newts.config.hostname property also accepts a comma separated list of hostnames and or IP addresses.

Once Newts has been enabled, you can initialize the Newts schema in Cassandra with the following:

Initialize Newts keyspace in Cassandra

${OPENNMS_HOME}/bin/newts init

Optionally, you can now connect to your Cassandra cluster and verify that the keyspace has been properly initialized:

Verify if the keyspace is initialized with cqlsh

cqlsh
use newts;
describe table terms;
describe table samples;

Restart OpenNMS to apply the changes.

5. Installing R

R is a free software environment for statistical computing and graphics. OpenNMS can leverage the power of R for forecasting and advanced numerical computations of time series data.

OpenNMS interfaces with R via stdin and stdout, and for this reason, R must be installed on the same host. Note that installing R is optional, and not required by any of the core components.

The R integration is not currently supported on Microsoft Windows systems.

5.1. Installing on RHEL-based systems

This section describes how to install R on a RHEL based system.

This description was built on RHEL 7 and CentOS 7.1.

Install the EPEL repositories

yum install epel-release

Install R

yum install R

5.2. Installing on Debian-based systems

This section describes how to install R on a Debian-based system.

This description was built on Debian 8 and Ubuntu 14.04 LTS.

Install R

sudo apt-get install r-recommended