{
    "hardware.cpu_usage": "100 - avg by (instance) (irate(node_cpu_seconds_total{tidb_cluster=\"%s\", mode=\"idle\"}[1m]) ) * 100",
    "hardware.memory_avaliable": "node_memory_MemAvailable_bytes{tidb_cluster=\"%s\"}",
    "hardware.network_traffic":   "irate(node_network_receive_bytes_total{tidb_cluster=\"%s\", device!=\"lo\"}[5m])",
    "port.used": "count(probe_success{tidb_cluster=\"%s\", group=\"%s\"} == 1)",
    "port.failed": "count(probe_success{tidb_cluster=\"%s\", group=\"%s\"} == 0)",
    "tidb.duration": "histogram_quantile(0.99, sum(rate(tidb_server_handle_query_duration_seconds_bucket{tidb_cluster=\"%s\", sql_type!=\"internal\"}[1m])) by (le))"
}