The disk input plugin, gathers the information about the disk throughput of the running system every certain interval of time and reports them.
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. |
In order to get disk usage from your system, you can run the plugin from the command line or through the configuration file:
$ fluent-bit -i disk -o stdoutFluent Bit v1.x.x* Copyright (C) 2019-2020 The Fluent Bit Authors* Copyright (C) 2015-2018 Treasure Data* Fluent Bit is a CNCF sub-project under the umbrella of Fluentd* https://fluentbit.io​[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}]
In your main configuration file append the following Input & Output sections:
[INPUT]Name diskTag diskInterval_Sec 1Interval_NSec 0[OUTPUT]Name stdoutMatch *
Note: Total interval (sec) = Interval_Sec + (Interval_Nsec / 1000000000).
e.g. 1.5s = 1s + 500000000ns