Flow counter

The Flow counter output plugin lets you count up records and their size.

Configuration parameters

Key	Description	Default
event_based	When enabled, use the timestamp from the log event for time bucketing instead of the current wall-clock time.	false
unit	The unit of duration. Allowed values: second, minute, hour, day.	minute
workers	The number of workers to perform flush operations for this output.	0

Get started

You can run the plugin from the command line or through the configuration file.

Command line

From the command line you can let Fluent Bit count up data with the following options:

fluent-bit -i cpu -o flowcounter

Configuration file

In your main configuration file append the following:

fluent-bit.yaml

pipeline:
  inputs:
    - name: cpu
      tag: cpu

  outputs:
    - name: flowcounter
      match: '*'
      unit: second

fluent-bit.conf

[INPUT]
  Name cpu
  Tag  cpu

[OUTPUT]
  Name  flowcounter
  Match *
  Unit second

Testing

When Fluent Bit is running, you will see the reports in the output interface similar to this:

...
[out_flowcounter] cpu.0:[1482458540, {"counts":60, "bytes":7560, "counts/minute":1, "bytes/minute":126 }]
...