[{"ds_name":"sum","cluster_name":"","graph_type":"stack","host_name":"","metric_name":"cpu_nice   ","color":"#555555","datapoints":[[0,1788729840],[0,1788730200],[0,1788730560],[0,1788730920],[0,1788731280],[0,1788731640],[0,1788732000],[0,1788732360],[0,1788732720],[0,1788733080],[0,1788733440],[0,1788733800],[0,1788734160],[0,1788734520],[0,1788734880],[0,1788735240],[0,1788735600],[0,1788735960],[0,1788736320],[0,1788736680],["NaN",1788737040]]}]