InfluxDB

The InfluxDB output writes time-series data to InfluxDB 2.x using the Line Protocol. It maps columns to tags and fields, buffers writes in configurable batches, and retries failures with exponential backoff.

Configuration

Field	Type	Required	Default	Description
type	string	yes	—	Fixed value "influxdb"
url	string	yes	—	InfluxDB server URL (e.g. http://localhost:8086).
org	string	yes	—	Organization name.
bucket	string	yes	—	Destination bucket.
token	string	yes	—	Authentication token.
measurement	string	yes	—	Measurement name.
tags	array<object>	no	—	Tag mappings (indexed fields).
fields	array<object>	yes	—	Field mappings (value fields).
timestamp_field	string	no	—	Source column for the point timestamp (nanoseconds). Defaults to current time.
batch_size	integer	no	1000	Number of lines to buffer before flushing.
flush_interval	integer	no	—	Flush interval in seconds.
retry_count	integer	no	3	Number of retry attempts on failure.
timeout_ms	integer	no	5000	HTTP request timeout in milliseconds.

tags[]

Field	Type	Required	Default	Description
field	string	yes	—	Source column name in the message batch.
tag_name	string	yes	—	Tag name written to InfluxDB.

fields[]

Field	Type	Required	Default	Description
field	string	yes	—	Source column name in the message batch.
field_name	string	yes	—	Field name written to InfluxDB.
field_type	string	no	string	One of float, integer, boolean, string.

Examples

Basic InfluxDB Output

yaml

output:
  type: "influxdb"
  url: "http://localhost:8086"
  org: "my-org"
  bucket: "sensor-data"
  token: "${INFLUXDB_TOKEN}"
  measurement: "temperature"
  fields:
    - field: "temp"
      field_name: "value"
      field_type: "float"

With Tags and Timestamp

yaml

output:
  type: "influxdb"
  url: "http://localhost:8086"
  org: "production"
  bucket: "metrics"
  token: "${INFLUXDB_TOKEN}"
  measurement: "system_metrics"
  tags:
    - field: "hostname"
      tag_name: "host"
    - field: "region"
      tag_name: "region"
  fields:
    - field: "cpu_percent"
      field_name: "cpu_usage"
      field_type: "float"
    - field: "memory_mb"
      field_name: "memory_usage"
      field_type: "integer"
    - field: "status_message"
      field_name: "status"
      field_type: "string"
  timestamp_field: "timestamp"

With Batching and Retry

yaml

output:
  type: "influxdb"
  url: "https://influxdb.example.com:8086"
  org: "enterprise"
  bucket: "telemetry"
  token: "${INFLUXDB_TOKEN}"
  measurement: "iot_readings"
  tags:
    - field: "device_type"
      tag_name: "device_type"
  fields:
    - field: "temp"
      field_name: "temperature"
      field_type: "float"
    - field: "battery"
      field_name: "battery_level"
      field_type: "integer"
  timestamp_field: "event_time"
  batch_size: 5000
  flush_interval: 10
  retry_count: 5
  timeout_ms: 10000

Notes

• Measurement, tag, and field identifiers are escaped per Line Protocol rules automatically.
• When field_type is omitted it is treated as a string field.
• Retries use exponential backoff starting at 100 ms.