fluent/fluentd · error · Fluent::ConfigError

<parse> section is required.

Error message

<parse> section is required.

What it means

Error "<parse> section is required." thrown in fluent/fluentd.

Source

Thrown at lib/fluent/plugin/in_tail.rb:132

    desc 'Format path with the specified timezone'
    config_param :path_timezone, :string, default: nil
    desc 'Follow inodes instead of following file names. Guarantees more stable delivery and allows to use * in path pattern with rotating files'
    config_param :follow_inodes, :bool, default: false
    desc 'Maximum length of line. The longer line is just skipped.'
    config_param :max_line_size, :size, default: nil

    config_section :parse, required: false, multi: true, init: true, param_name: :parser_configs do
      config_argument :usage, :string, default: 'in_tail_parser'
    end

    attr_reader :paths

    def configure(conf)
      @variable_store = Fluent::VariableStore.fetch_or_build(:in_tail)
      compat_parameters_convert(conf, :parser)
      parser_config = conf.elements('parse').first
      unless parser_config
        raise Fluent::ConfigError, "<parse> section is required."
      end

      (1..Fluent::Plugin::MultilineParser::FORMAT_MAX_NUM).each do |n|
        parser_config["format#{n}"] = conf["format#{n}"] if conf["format#{n}"]
      end

      parser_config['unmatched_lines'] = conf['emit_unmatched_lines']

      super

      if !@enable_watch_timer && !@enable_stat_watcher
        raise Fluent::ConfigError, "either of enable_watch_timer or enable_stat_watcher must be true"
      end

      if @glob_policy == :always && @path_delimiter == ','
        raise Fluent::ConfigError, "cannot use glob_policy as always with the default path_delimiter: `,\""
      end

View on GitHub (pinned to dd45c6e18d)

When it happens

Trigger: Thrown at lib/fluent/plugin/in_tail.rb:132 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of fluent/fluentd@dd45c6e18d (2026-08-21). Data as JSON: /api/errors/dffe7e27b5289c76. Report an issue: GitHub.