Fluent Bit: Official Manual
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1.2
1.2
  • Introduction
  • About
    • Why ?
    • Fluentd & Fluent Bit
    • License
  • Installation
    • Supported Platforms
    • Requirements
    • Download Sources
    • Upgrade Notes
    • Build and Install
    • Build with Static Configuration
    • Docker Images
    • Kubernetes
    • TD Agent Bit
    • Debian Packages
    • Ubuntu Packages
    • CentOS Packages
    • Raspberry Pi
    • Yocto Project
    • Windows
  • Getting Started
    • Service
    • Input
    • Parser
    • Filter
    • Buffer
    • Routing
    • Output
  • Configuration
    • Configuration Schema
    • Configuration File
    • Configuration Variables
    • Configuration Commands
    • Buffering / Storage
    • Monitoring
    • Unit Sizes
    • TLS / SSL
    • Backpressure
    • Memory Usage
    • Upstream Servers
    • Scheduler
    • Stream Processor
  • Service
  • Input Plugins
    • Collectd
    • CPU Usage
    • Disk Usage
    • Dummy
    • Exec
    • Forward
    • Head
    • Health
    • Kernel Log Buffer
    • Memory Usage
    • MQTT
    • Network Traffic
    • Process
    • Random
    • Serial Interface
    • Standard Input
    • Syslog
    • Systemd
    • Tail
    • TCP
    • Thermal
    • Windows Event Log
  • Parsers
    • JSON Parser
    • Regular Expression Parser
    • LTSV Parser
    • Logfmt Parser
    • Decoders
  • Filter Plugins
    • Grep
    • Kubernetes
    • Lua
    • Parser
    • Record Modifier
    • Standard Output
    • Throttle
    • Nest
    • Modify
  • Output Plugins
    • Azure
    • BigQuery
    • Counter
    • Datadog
    • Elasticsearch
    • File
    • FlowCounter
    • Forward
    • GELF
    • HTTP
    • InfluxDB
    • Kafka
    • Kafka REST Proxy
    • NATS
    • Null
    • Stackdriver
    • Standard Output
    • Splunk
    • TCP & TLS
    • Treasure Data
  • Fluent Bit for Developers
    • Library API
    • Ingest Records Manually
    • Fluent Bit and Golang Plugins
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  • Configuration Parameters
  • Getting Started
  • Command Line
  • Configuration File

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  1. Input Plugins

Disk Usage

The disk input plugin, gathers the information about the disk throughput of the running system every certain interval of time and reports them.

Configuration Parameters

The plugin supports the following configuration parameters:

Key

Description

Interval_Sec

Polling interval (seconds). default: 1

Interval_NSec

Polling interval (nanosecond). default: 0

Dev_Name

Device name to limit the target. (e.g. sda). If not set, in_disk gathers information from all of disks and partitions.

Getting Started

In order to get disk usage from your system, you can run the plugin from the command line or through the configuration file:

Command Line

$ fluent-bit -i disk -o stdout
Fluent-Bit v0.11.0
Copyright (C) Treasure Data

[2017/01/28 16:58:16] [ info] [engine] started
[0] disk.0: [1485590297, {"read_size"=>0, "write_size"=>0}]
[1] disk.0: [1485590298, {"read_size"=>0, "write_size"=>0}]
[2] disk.0: [1485590299, {"read_size"=>0, "write_size"=>0}]
[3] disk.0: [1485590300, {"read_size"=>0, "write_size"=>11997184}]

Configuration File

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

[INPUT]
    Name          disk
    Tag           disk
    Interval_Sec  1
    Interval_NSec 0
[OUTPUT]
    Name   stdout
    Match  *

Note: Total interval (sec) = Interval_Sec + (Interval_Nsec / 1000000000).

e.g. 1.5s = 1s + 500000000ns

Last updated 5 years ago

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