{
  "dashboard": {
    "id": null,
    "title": "Kafka Client Load Test Dashboard",
    "tags": ["kafka", "loadtest", "seaweedfs"],
    "timezone": "browser",
    "panels": [
      {
        "id": 1,
        "title": "Messages Produced/Consumed",
        "type": "stat",
        "targets": [
          {
            "expr": "rate(kafka_loadtest_messages_produced_total[5m])",
            "legendFormat": "Produced/sec"
          },
          {
            "expr": "rate(kafka_loadtest_messages_consumed_total[5m])",
            "legendFormat": "Consumed/sec"
          }
        ],
        "gridPos": {"h": 8, "w": 12, "x": 0, "y": 0}
      },
      {
        "id": 2,
        "title": "Message Latency",
        "type": "graph",
        "targets": [
          {
            "expr": "histogram_quantile(0.95, kafka_loadtest_message_latency_seconds)",
            "legendFormat": "95th percentile"
          },
          {
            "expr": "histogram_quantile(0.99, kafka_loadtest_message_latency_seconds)",
            "legendFormat": "99th percentile"
          }
        ],
        "gridPos": {"h": 8, "w": 12, "x": 12, "y": 0}
      },
      {
        "id": 3,
        "title": "Error Rates",
        "type": "graph",
        "targets": [
          {
            "expr": "rate(kafka_loadtest_producer_errors_total[5m])",
            "legendFormat": "Producer Errors/sec"
          },
          {
            "expr": "rate(kafka_loadtest_consumer_errors_total[5m])",
            "legendFormat": "Consumer Errors/sec"
          }
        ],
        "gridPos": {"h": 8, "w": 24, "x": 0, "y": 8}
      },
      {
        "id": 4,
        "title": "Throughput (MB/s)",
        "type": "graph", 
        "targets": [
          {
            "expr": "rate(kafka_loadtest_bytes_produced_total[5m]) / 1024 / 1024",
            "legendFormat": "Produced MB/s"
          },
          {
            "expr": "rate(kafka_loadtest_bytes_consumed_total[5m]) / 1024 / 1024", 
            "legendFormat": "Consumed MB/s"
          }
        ],
        "gridPos": {"h": 8, "w": 12, "x": 0, "y": 16}
      },
      {
        "id": 5,
        "title": "Active Clients",
        "type": "stat",
        "targets": [
          {
            "expr": "kafka_loadtest_active_producers",
            "legendFormat": "Producers"
          },
          {
            "expr": "kafka_loadtest_active_consumers", 
            "legendFormat": "Consumers"
          }
        ],
        "gridPos": {"h": 8, "w": 12, "x": 12, "y": 16}
      },
      {
        "id": 6,
        "title": "Consumer Lag",
        "type": "graph",
        "targets": [
          {
            "expr": "kafka_loadtest_consumer_lag_messages",
            "legendFormat": "{{consumer_group}}-{{topic}}-{{partition}}"
          }
        ],
        "gridPos": {"h": 8, "w": 24, "x": 0, "y": 24}
      }
    ],
    "time": {"from": "now-30m", "to": "now"},
    "refresh": "5s",
    "schemaVersion": 16,
    "version": 0
  }
}