{
 "widget_name": "NameNode Heap",
 "description": "Heap memory committed and Heap memory used with respect to time.",
 "widget_type": "GRAPH",
 "is_visible": true,
 "metrics": [
 {
 "name": "jvm.JvmMetrics.MemHeapCommittedM",
 "metric_path": "metrics/jvm/memHeapCommittedM",
 "service_name": "HDFS",
 "component_name": "NAMENODE",
 "host_component_criteria": "host_components/metrics/dfs/FSNamesystem/HAState=active"
 },
 {
 "name": "jvm.JvmMetrics.MemHeapUsedM",
 "metric_path": "metrics/jvm/memHeapUsedM",
 "service_name": "HDFS",
 "component_name": "NAMENODE",
 "host_component_criteria": "host_components/metrics/dfs/FSNamesystem/HAState=active"
 }
 ],
 "values": [
 {
 "name": "JVM heap committed",
 "value": "${jvm.JvmMetrics.MemHeapCommittedM}"
 },
 {
 "name": "JVM heap used",
 "value": "${jvm.JvmMetrics.MemHeapUsedM}"
 }
 ],
 "properties": {
 "display_unit": "MB",
 "graph_type": "LINE",
 "time_range": "1"
 }
 }