stdout

The stdout output plugin prints events to the standard output (or logs if launched as a daemon). This output plugin is useful for debugging purposes.

It is included in Fluentd's core.

Example Configuration

<match pattern>
@type stdout
</match>

Please see the Config File article for the basic structure and syntax of the configuration file.

Sample output:

2017-11-28 11:43:13.814351757 +0900 tag: {"field1":"value1","field2":"value2"}

where the first part shows the output time, the second part shows the tag, and the third part shows the record.

Supported Modes

  • Non-Buffered

  • Synchronous

Plugin Helpers

Parameters

Common Parameters

@type

The value must be stdout.

<buffer> Section

See Buffer Section Configurations for more details.

chunk_keys

type

default

version

array

tag

0.14.5

Overwrites the default value in this plugin.

flush_at_shutdown

type

default

version

bool

true

0.14.5

Overwrites the default value in this plugin.

chunk_limit_size

type

default

version

size

10240

0.14.5

Overwrites the default value in this plugin.

<format> Section

See Format Section Configurations for more details.

@type

type

default

version

string

stdout

0.14.5

The format of output.

output_type

type

default

version

string

json

0.14.5

This is the option for stdout format. Configure the format of record (third part). Any formatter plugins can be specified.

<inject> Section

See Inject Section Configurations for more details.

If this article is incorrect or outdated, or omits critical information, please let us know. Fluentd is an open-source project under Cloud Native Computing Foundation (CNCF). All components are available under the Apache 2 License.