The in_scribe Input plugin enables Fluentd to retrieve records through the Scribe protocol. Scribe is another log collector daemon that is open-sourced by Facebook.

Since Scribe hasn't been well maintained recently, this plugin is useful for existing Scribe users who want to use Fluentd with an existing Scribe infrastructure.


in_scribe is included in td-agent by default. Fluentd gem users will need to install the fluent-plugin-scribe gem using the following command.

$ fluent-gem install fluent-plugin-scribe

Example Configuration

  @type scribe
  port 1463

  msg_format json

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

Example Usage

We assume that you're already familiar with the Scribe protocol. This Ruby example code posts logs to in_scribe.

Scribe's category field becomes the tag of the Fluentd event log and Scribe's message field becomes the record itself. The msg_format parameter specifies the format of the message field.


type (required)

The value must be scribe.


The port to listen to. Default Value = 1463


The bind address to listen to. Default Value = (all addresses)


The message format can be 'text', 'json', or 'url_param' (default: text)

For json, Fluentd's record is organized as follows. Scribe's message field must be a valid JSON string representing Hash; otherwise, the record is ignored.

tag: $category
record: $message

For text, Fluentd's record is organized as follows. Scribe's message can be any arbitrary string, but JSON is recommended for ease of use with the subsequent analytics pipeline.

tag: $category
record: {'message': $message}

For url_param, Fluentd's record is organized as follows. Scribe's message field must contain URL parameter style key-value pairs with URL encoding (e.g. key1=val1&key2=val2).

tag: $url_param
record: {$key1: $val1, $key2: $val2, ...}


Specifies whether to use Thrift's framed protocol or not (default: true).


Chooses the server architecture. Options are 'simple', 'threaded', 'thread_pool', or 'nonblocking' (default: nonblocking).


The prefix string which will always be added to the tag (default: nil).

log_level option

The log_level option allows the user to set different levels of logging for each plugin. The supported log levels are: fatal, error, warn, info, debug, and trace.

Please see the logging article for further details.

If this article is incorrect or outdated, or omits critical information, please let us know.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

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