Counter

Counter is a very simple plugin that counts how many records it’s getting upon flush time. Plugin output is as follows:

  1. [TIMESTAMP, NUMBER_OF_RECORDS_NOW] (total = RECORDS_SINCE_IT_STARTED)

Getting 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 a data with the following options:

  1. $ fluent-bit -i cpu -o counter

Configuration File

In your main configuration file append the following Input & Output sections:

  1. [INPUT]
  2.     Name cpu
  3.     Tag  cpu
  5. [OUTPUT]
  6.     Name  counter
  7.     Match *

Testing

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

  1. $ bin/fluent-bit -i cpu -o counter -f 1
  2. Fluent-Bit v0.12.0
  3. Copyright (C) Treasure Data
  5. [2017/07/19 11:19:02] [ info] [engine] started
  6. 1500484743,1 (total = 1)
  7. 1500484744,1 (total = 2)
  8. 1500484745,1 (total = 3)
  9. 1500484746,1 (total = 4)
  10. 1500484747,1 (total = 5)