Step 1 - Meta Node Installation

Warning! This page documents an old version of InfluxEnterprise, which is no longer actively developed. InfluxEnteprise v1.2 is the most recent stable version of InfluxEnterprise.

InfluxEnterprise offers highly scalable clusters on your infrastructure and a management UI for working with clusters. The next steps will get you up and running with the first essential component of your InfluxEnterprise cluster: the meta nodes.

Requirements

To get started, you’ll need the license key that you received at InfluxPortal as well as several servers. The steps below set up three meta nodes with each meta node on its own server.

You must add 3 meta nodes at minimum while setting up the cluster.

There is no requirement to use exactly that number of servers, but for high availability and redundancy your cluster should have at least three meta nodes and an odd number of meta nodes. More than three meta nodes is not recommended unless the servers are unreliable. See the Clustering Guide for more on cluster architecture.

Note: By default, data and meta nodes communicate with each other on ports 8088, 8089, and 8091.

Meta Node Setup

Modify the /etc/hosts file

Add your servers’ hostnames and IP addresses to each cluster server’s /etc/hosts file (the hostnames are representative):

<Meta_1_IP> enterprise-meta-01
<Meta_2_IP> enterprise-meta-02
<Meta_3_IP> enterprise-meta-03

Verification steps:

Before proceeding with the installation, verify on each server that the other servers are resolvable. Here is an example set of shell commands using ping:

ping -qc 1 enterprise-meta-01
ping -qc 1 enterprise-meta-02
ping -qc 1 enterprise-meta-03

If there are any connectivity issues resolve them before proceeding with the installation. A healthy cluster requires that every meta node can communicate with every other meta node.

Set up, configure, and start the meta servers

On all three meta servers:

1. Download and install the meta server package

Ubuntu & Debian (64-bit)

wget https://dl.influxdata.com/enterprise/releases/influxdb-meta_1.0.2-c1.0.4_amd64.deb
sudo dpkg -i influxdb-meta_1.0.2-c1.0.4_amd64.deb

RedHat & CentOS (64-bit)

wget https://dl.influxdata.com/enterprise/releases/influxdb-meta-1.0.2_c1.0.4.x86_64.rpm
sudo yum localinstall influxdb-meta-1.0.2_c1.0.4.x86_64.rpm

2. Edit the configuration file

In /etc/influxdb/influxdb-meta.conf, set:

  • hostname to the full hostname of the meta node
  • registration-enabled in the [enterprise] section to true
  • registration-server-url in the [enterprise] section to the full URL of the server that will run the InfluxEnterprise web console. You must fully specify the protocol, IP or hostname, and port. Entering the IP or hostname alone will lead to errors.
  • license-key in the [enterprise] section to the license key you received on InfluxPortal, OR
  • license-path in the [enterprise] section to the local path to the JSON license file you received from InfluxData

Note: license-key and license-path are mutually exclusive and one must remain set to the empty string.

reporting-disabled = false
bind-address = ""
hostname = "<enterprise-meta-0x>" #✨

[enterprise]
 registration-enabled = true #✨
 registration-server-url = "http://<web-console-server-IP>:3000" #✨
 license-key = "<your_license_key>" #✨ mutually exclusive with license-path
 license-path = "/path/to/readable/JSON.license.file" #✨ mutually exclusive with license-key

3. Start the meta node

On sysvinit systems, enter:

service influxdb-meta start

On systemd systems, enter:

sudo systemctl start influxdb-meta

Verification steps:

Check to see that the process is running by entering:

ps aux | grep -v grep | grep influxdb-meta

You should see output similar to:

influxdb  3207  0.8  4.4 483000 22168 ?        Ssl  17:05   0:08 /usr/bin/influxd-meta -config /etc/influxdb/influxdb-meta.conf


Note: It is possible to start the cluster with a single meta node but you must pass the -single-server flag when starting the single meta node. Please note that a cluster with only one meta node is not recommended for production environments.

Join the meta nodes to the cluster

From one and only one meta node, join all meta nodes including itself. In our example, from enterprise-meta-01, run:

influxd-ctl join enterprise-meta-01:8091

influxd-ctl join enterprise-meta-02:8091

influxd-ctl join enterprise-meta-03:8091

Note: Please make sure that you specify the fully qualified host name of the meta node during the join process. Please do not specify localhost as this can cause cluster connection issues.

The expected output is:

Added meta node x at enterprise-meta-0x:8091

Verification steps:

Issue the following command on any meta node:

influxd-ctl show

The expected output is:

Meta Nodes
==========
TCP Address
enterprise-meta-01:8091
enterprise-meta-02:8091
enterprise-meta-03:8091

Note that your cluster must have at least three meta nodes. If you do not see your meta nodes in the output, please retry adding them to the cluster.

Once your meta nodes are part of your cluster move on to the next steps to set up your data nodes. Please do not continue to the next steps if your meta nodes are not part of the cluster.