HI guys I have followed this tutorial : https://signoz.io/docs/install/linux/ Everything seems running but nothing in the dashboard in metrics. Where can I check for data in the DB or to see if the collection work ? I can see the log's colletor saying :

Apr 14 16:30:34 FRPAR3DXSBOX signoz-otel-collector[11717]: {"level":"info","timestamp":"2025-04-14T16:30:34.858+0200","caller":"opamp/server_client.go:171","msg":"Waiting for initial remote config","component":"opamp-server-client"}

Here my otel-col config.yaml :

receivers:
  hostmetrics:
    collection_interval: 60s
    scrapers:
      cpu: {}
      disk: {}
      load: {}
      filesystem: {}
      memory: {}
      network: {}
      paging: {}
      process:
        mute_process_name_error: true
        mute_process_exe_error: true
        mute_process_io_error: true
      processes: {}
processors:
  batch:
    send_batch_size: 1000
    timeout: 10s
  # Ref: <https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/processor/resourcedetectionprocessor/README.md>
  resourcedetection:
    detectors: [env, system] # Before system detector, include ec2 for AWS, gcp for GCP and azure for Azure.
    # Using OTEL_RESOURCE_ATTRIBUTES envvar, env detector adds custom labels.
    timeout: 2s
    system:
      hostname_sources: [os] # alternatively, use [dns,os] for setting FQDN as host.name and os as fallback
extensions:
  health_check: {}
  zpages: {}
exporters:
  clickhouse/hostmetrics:
    endpoint: <tcp://localhost:9000/signoz_metrics?username=signoz&password=signoz>
    tls:
      insecure: true
    resource_to_telemetry_conversion:
      enabled: true
  metadataexporter:
    dsn: <tcp://localhost:9000/signoz_metadata?username=signoz&password=signoz> 
    timeout: 10s
    tenant_id: default
    cache:
      provider: in_memory
service:
  telemetry:
    metrics:
      address: 0.0.0.0:8888
  extensions: [health_check, zpages]
  pipelines:
    metrics/hostmetrics:
      receivers: [hostmetrics]
      processors: [resourcedetection, batch]
      exporters: [clickhouse/hostmetrics, metadataexporter]