> ## Documentation Index
> Fetch the complete documentation index at: https://datum.net/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Connectors observability

> See the traffic that reaches your Connectors through a load balancer, and the metrics and logs Datum publishes for it.

This page covers how to see the traffic your [Connectors](https://datum.net/docs/connectors/overview.md) carry. Datum is still building Connectors, and more detail is on the way.

## Traffic through a load balancer

Today, a Connector receives traffic through an [Application Load Balancer](https://datum.net/docs/alb/overview.md) whose route uses a `connector` backend. Every request it carries is measured and logged by that load balancer, so you observe a Connector through the load balancers that use it.

In the [Cloud Portal](https://cloud.datum.net), each Connector shows a request-rate chart that adds up the traffic from every load balancer that routes to it.

### Metrics

Use the [ALB traffic and latency metrics](https://datum.net/docs/alb/observability.md#traffic-and-latency), selected by the name of each load balancer that routes to your Connector. For example, to see requests per second through one load balancer, replace `PROJECT_ID` and `ALB_NAME`:

```promql theme={null}
sum(rate(envoy_vhost_vcluster_upstream_rq{resourcemanager_datumapis_com_project_name="PROJECT_ID", gateway_name="ALB_NAME"}[5m]))
```

To add up several load balancers, select them with a regular expression, such as `gateway_name=~"alb-one|alb-two"`. To query these metrics in your own tools, [export them](https://datum.net/docs/operations/metrics-export.md).

### Access logs

To see the requests that reached your Connector, read the access logs of the load balancer that routes to it:

```bash theme={null}
datumctl alb logs ALB_NAME --since 1h
```

A `502` or `503` with nothing reaching your machine can mean the tunnel isn't connected. Check that the Connector is running on your machine. See [ALB access logs](https://datum.net/docs/alb/observability.md#access-logs).

## Follow the roadmap

> **[Connectors limitations and roadmap](https://datum.net/docs/connectors/limitations-and-roadmap.md)**
>
> See what Connectors doesn't support yet and what Datum is building next.


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