Module: Fluent::Plugin::FileOutput::SymlinkBufferMixin

Defined in:
lib/fluent/plugin/out_file.rb

Instance Method Summary collapse

Instance Method Details

#generate_chunk(metadata) ⇒ Object 



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# File 'lib/fluent/plugin/out_file.rb', line 90

def generate_chunk(metadata)
  chunk = super
  # "symlink" feature is to link from symlink_path to the latest file chunk. Records with latest
  # timekey will be appended into that file chunk. On the other side, resumed file chunks might NOT
  # have timekey, especially in the cases that resumed file chunks are generated by Fluentd v0.12.
  # These chunks will be enqueued immediately, and will be flushed soon.
  if chunk.metadata == @latest_metadata
    sym_path = @_output_plugin_for_symlink.extract_placeholders(@_symlink_path, chunk)
    FileUtils.mkdir_p(File.dirname(sym_path), mode: @_output_plugin_for_symlink.dir_perm)
    FileUtils.ln_sf(chunk.path, sym_path)
  end
  chunk
end

#metadata(timekey: nil, tag: nil, variables: nil) ⇒ Object 



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# File 'lib/fluent/plugin/out_file.rb', line 71

def metadata(timekey: nil, tag: nil, variables: nil)
  metadata = super

  @latest_metadata ||= new_metadata(timekey: 0)
  if metadata.timekey && (metadata.timekey >= @latest_metadata.timekey)
    @latest_metadata = metadata
  end

  metadata
end

#output_plugin_for_symlink=(output_plugin) ⇒ Object 



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# File 'lib/fluent/plugin/out_file.rb', line 82

def output_plugin_for_symlink=(output_plugin)
  @_output_plugin_for_symlink = output_plugin
end

#symlink_path=(path) ⇒ Object 



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# File 'lib/fluent/plugin/out_file.rb', line 86

def symlink_path=(path)
  @_symlink_path = path
end