generated_pdf.rb

class GeneratedPDF
  def generate
    # pdf stuff...

    pdf_file = Tempfile.new(['something', '.pdf'])
    pdf_file.binmode
    pdf_file.write(pdf_string)
    pdf_file
  end
end

generated_pdf_job.rb

class GeneratedPdfJob < Struct.new(:generated_pdf)
  def perform
    generated_pdf.update_attributes!(pdf: File.new(generated_pdf.generate))
  end
end

Sometimes, line 3 of generated_pdf_job.rb raises Errno::ENOENT. Is that because the Tempfile has been GC'd and unlinked?