{
  "metadata": {
    "name": "topn_agg_test",
    "group": "sw_metric"
  },
  "source_measure": {
    "name": "service_instance_metric_topn_test",
    "group": "sw_metric"
  },
  "field_name": "value",
  "field_value_sort": 0,
  "group_by_tag_names": [
    "service_id"
  ],
  "counters_number": 1000,
  "lru_size": 10
}
