{
   "report_name" : "hlog_split_size_report",
   "report_type" : "standard",
   "title" : "Avg HLog split file size",
   "vertical_label" : "Bytes",
   "series" : [
      { "metric": "hbase.master.splitSize_avg_time", "color": "ff0000", "label": "Avg Split Size", 
        "line_width": "2", "type": "stack" }
   ]
}