anchor.diff:  	  type: "graphite",
             datasource: 'influxdb',
   	  stack: true,
  -	  span: 6,
  +	  span: 3,
   	  targets:[
   	  {
                 select:[[
  
positive.code: 	  type: "graphite",
            datasource: 'influxdb',
  	  stack: true,
  	  span: 6,
  	  steppedLine: true,
  	  targets:[
  	  {
  
negative.code: 	  title: "HDFS reads/executor",
  	  type: "graphite",
            datasource: 'influxdb',
  	  span: 3,
  	  targets:[
  	  {
                select:[[
  