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Config: Format Section
Some of the Fluentd plugins support the <format> section to specify how to format the record.

Format Section Overview

The format section can be under <match> or <filter> section.
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<match tag.*>
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@type file
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# ...
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<format>
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# ...
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</format>
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</match>
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Formatter Plugin Type

The @type parameter of <format> section specifies the type of the formatter plugin. Fluentd core bundles some useful formatter plugins.
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<format>
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@type json
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</format>
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Here's the list of built-in formatter plugins:
Third-party plugins may also be installed and configured.
For more details, see plugins documentation.

Parameters

@type

The @type parameter specifies the type of the formatter plugin.
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<format>
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@type csv
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# ...
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</format>
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Time Parameters

    time_type (enum) (optional): parses/formats value according to this
    type
      Default: float
      Available values: float, unixtime, string
        float: seconds from Epoch + nano seconds (e.g.
        1510544836.154709804)
        unixtime: seconds from Epoch (e.g. 1510544815)
        string: use format specified by time_format, local time or time
        zone
    time_format (string) (optional): processes value according to the
    specified format. This is available only when time_type is string.
      Default: nil
      Available time format:
        For more details about formatting, see
        For more details about parsing, see
        %iso8601 (only for parsing)
        Use %N to parse/format with sub-second precision, because
        strptime does not support
        %3N, %6N, %9N, and %L.
    localtime (bool) (optional): if true, uses local time. Otherwise,
    UTC is used. This is exclusive with utc.
      Default: true
    utc (bool) (optional): if true, uses UTC. Otherwise, local time is
    used. This is exclusive with localtime.
      Default: false
    timezone (string) (optional): uses the specified timezone. One can
    parse/format the time value in the specified timezone format.
      Default: nil
      Available time zone format:
        1.
        [+-]HH:MM (e.g. "+09:00") (recommended)
        2.
        [+-]HHMM (e.g. "+0900")
        3.
        [+-]HH (e.g. "+09")
        4.
        Region/Zone (e.g. Asia/Tokyo)
        5.
        Region/Zone/Zone (e.g. America/Argentina/Buenos_Aires)
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.
Last modified 4mo ago