Install InfluxDB OSS

This page provides directions for installing, starting, and configuring InfluxDB open source (OSS).

InfluxDB OSS installation requirements

Installation of the InfluxDB package may require root or administrator privileges in order to complete successfully.

InfluxDB OSS networking ports

By default, InfluxDB uses the following network ports:

• TCP port 8086 is available for client-server communication using the InfluxDB API.
• TCP port 8088 is available for the RPC service to perform back up and restore operations.

In addition to the ports above, InfluxDB also offers multiple plugins that may require custom ports. All port mappings can be modified through the configuration file, which is located at /etc/influxdb/influxdb.conf for default installations.

Network Time Protocol (NTP)

InfluxDB uses a host’s local time in UTC to assign timestamps to data and for coordination purposes. Use the Network Time Protocol (NTP) to synchronize time between hosts; if hosts' clocks aren’t synchronized with NTP, the timestamps on the data written to InfluxDB can be inaccurate.

Installing InfluxDB OSS

For users who don’t want to install any software and are ready to use InfluxDB, you may want to check out our managed hosted InfluxDB offering.

# influxdata-archive_compat.key GPG Fingerprint: 9D539D90D3328DC7D6C8D3B9D8FF8E1F7DF8B07E
wget -q https://repos.influxdata.com/influxdata-archive_compat.key
echo '393e8779c89ac8d958f81f942f9ad7fb82a25e133faddaf92e15b16e6ac9ce4c influxdata-archive_compat.key' | sha256sum -c && cat influxdata-archive_compat.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/influxdata-archive_compat.gpg > /dev/null
echo 'deb [signed-by=/etc/apt/trusted.gpg.d/influxdata-archive_compat.gpg] https://repos.influxdata.com/debian stable main' | sudo tee /etc/apt/sources.list.d/influxdata.list

# influxdata-archive_compat.key GPG Fingerprint: 9D539D90D3328DC7D6C8D3B9D8FF8E1F7DF8B07E
curl -s https://repos.influxdata.com/influxdata-archive_compat.key > influxdata-archive_compat.key
echo '393e8779c89ac8d958f81f942f9ad7fb82a25e133faddaf92e15b16e6ac9ce4c influxdata-archive_compat.key' | sha256sum -c && cat influxdata-archive_compat.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/influxdata-archive_compat.gpg > /dev/null
echo 'deb [signed-by=/etc/apt/trusted.gpg.d/influxdata-archive_compat.gpg] https://repos.influxdata.com/debian stable main' | sudo tee /etc/apt/sources.list.d/influxdata.list

sudo apt-get update && sudo apt-get install influxdb
sudo service influxdb start

sudo apt-get update && sudo apt-get install influxdb
sudo systemctl unmask influxdb.service
sudo systemctl start influxdb

cat <<EOF | sudo tee /etc/yum.repos.d/influxdb.repo
[influxdb]
name = InfluxDB Repository - RHEL \$releasever
baseurl = https://repos.influxdata.com/rhel/\$releasever/\$basearch/stable
enabled = 1
gpgcheck = 1
gpgkey = https://repos.influxdata.com/influxdata-archive_compat.key
EOF

sudo yum install influxdb
sudo service influxdb start

sudo yum install influxdb
sudo systemctl start influxdb

# add go repository
zypper ar -f obs://devel:languages:go/ go
# install latest influxdb
zypper in influxdb

sudo pkg install influxdb

sudo service influxd onestart

brew update
brew install influxdb@1

$ /usr/local/opt/influxdb/bin/influxd version
InfluxDB 1.11.8 (git: none) build_date: 2021-04-01T17:55:08Z
$ /usr/local/opt/influxdb@1/bin/influxd version
InfluxDB v (git: unknown unknown)

Verify the authenticity of downloaded binary (optional)

For added security, follow these steps to verify the signature of your InfluxDB download with gpg.

(Most operating systems include the gpg command by default. If gpg is not available, see the GnuPG homepage for installation instructions.)

1. Download and import InfluxData’s public key:

   curl -s https://repos.influxdata.com/influxdata-archive_compat.key | gpg --import
   

2. Download the signature file for the release by adding .asc to the download URL. For example:

   wget https://download.influxdata.com/influxdb/releases/influxdb-1.11.8-linux-amd64.tar.gz.asc
   

3. Verify the signature with gpg --verify:

   gpg --verify influxdb-1.11.8_linux_amd64.tar.gz.asc influxdb-1.11.8-linux-amd64.tar.gz
   

   The output from this command should include the following:

   gpg: Good signature from "InfluxDB Packaging Service <support@influxdb.com>" [unknown]
   

Configuring InfluxDB OSS

The system has internal defaults for every configuration file setting. View the default configuration settings with the influxd config command.

Most of the settings in the local configuration file (/etc/influxdb/influxdb.conf) are commented out; all commented-out settings will be determined by the internal defaults. Any uncommented settings in the local configuration file override the internal defaults. Note that the local configuration file does not need to include every configuration setting.

There are two ways to launch InfluxDB with your configuration file:

• Point the process to the correct configuration file by using the -config option:

  influxd -config /etc/influxdb/influxdb.conf
  

• Set the environment variable INFLUXDB_CONFIG_PATH to the path of your configuration file and start the process. For example:

  echo $INFLUXDB_CONFIG_PATH
  /etc/influxdb/influxdb.conf
  
  influxd
  

InfluxDB first checks for the -config option and then for the environment variable.

See the Configuration documentation for more information.

Data and WAL directory permissions

Make sure the directories in which data and the write ahead log (WAL) are stored are writable for the user running the influxd service.

The user running the influxd process should have the following permissions for directories in the InfluxDB file system:

Information about data and wal directory paths is available in the Data settings section of the Configuring InfluxDB documentation.

Hosting InfluxDB OSS on AWS

Hardware requirements for InfluxDB

We recommend using two SSD volumes, using one for the influxdb/wal and the other for the influxdb/data. Depending on your load, each volume should have around 1k-3k provisioned IOPS. The influxdb/data volume should have more disk space with lower IOPS and the influxdb/wal volume should have less disk space with higher IOPS.

Each machine should have a minimum of 8GB RAM.

We’ve seen the best performance with the R4 class of machines, as they provide more memory than either of the C3/C4 class and the M4 class.

Configuring InfluxDB OSS instances

This example assumes that you are using two SSD volumes and that you have mounted them appropriately. This example also assumes that each of those volumes is mounted at /mnt/influx and /mnt/db. For more information on how to do that see the Amazon documentation on how to Add a Volume to Your Instance.

Configuration file

You’ll have to update the configuration file appropriately for each InfluxDB instance you have.

...

[meta]
  dir = "/mnt/db/meta"
  ...

...

[data]
  dir = "/mnt/db/data"
  ...
wal-dir = "/mnt/influx/wal"
  ...

...

[hinted-handoff]
    ...
dir = "/mnt/db/hh"
    ...

Authentication and Authorization

For all AWS deployments, we strongly recommend authentication be enabled. Without this, it is possible that your InfluxDB instance may be publicly available to any unauthenticated user. The default settings do NOT enable authentication and authorization. Further, authentication and authorization should not be solely relied upon to prevent access and protect data from malicious actors. If additional security or compliance features are desired, InfluxDB should be run behind additional services offered by AWS. Review the authentication and authorization settings.

InfluxDB OSS permissions

When using non-standard directories for InfluxDB data and configurations, also be sure to set filesystem permissions correctly:

chown influxdb:influxdb /mnt/influx
chown influxdb:influxdb /mnt/db

For InfluxDB 1.7.6 or later, you must give owner permissions to the init.sh file. To do this, run the following script in your influxdb directory:

if [ ! -f "$STDOUT" ]; then
    mkdir -p $(dirname $STDOUT)
    chown $USER:$GROUP $(dirname $STDOUT)
 fi

 if [ ! -f "$STDERR" ]; then
    mkdir -p $(dirname $STDERR)
    chown $USER:$GROUP $(dirname $STDERR)
 fi

 # Override init script variables with DEFAULT values