# File lib/storage/cache.rb, line 305
  def sync_chain(i)
    @st.inc(:chain_syncs)
    @cache[i].each do |ce|
      if ce.dirty?
        @db[ce.oid.to_s] = Utility.encode(ce.obj)
        @st.inc(:database_writes)
        ce.clean!
      end
    end
  end