Open the load balancer → Metrics tab in my.cubepath.com.
What's charted
| Chart | What it means |
|---|---|
| Active connections | Connections open right now. Rising while traffic is flat means connections are being held longer — slow backends, or keep-alive |
| Connections per second | New connections being established. This is the number your plan caps |
| Inbound / outbound traffic | Bytes through the load balancer in each direction |
Choose a time range, and turn on live mode for a view that refreshes every few seconds.
Reading it against your plan
Your plan sets a maximum connections per second, and the connections-per-second chart is the one that tells you when you're approaching it. That limit doesn't fail gracefully — it starts refusing new connections while the ones already open keep working, which looks to users like an intermittent, unexplainable outage.
Watch it against your peaks, not your average. If your busiest minute is close to the plan's ceiling, resize before the next campaign rather than during it.
Common shapes
- Active connections climbing while CPS is flat. Backends are answering more slowly. Check the backends' own metrics before touching the load balancer.
- CPS spike with no traffic increase. Lots of tiny connections — often a health check misconfigured to run far too often, or a scanner.
- Traffic asymmetric in one direction. Normal for a download-heavy or upload-heavy service, worth a second look otherwise.
TipIf clients report errors but these charts look healthy, the problem is likely downstream. Check target health on the Listeners tab — a load balancer with zero healthy targets still shows perfectly normal connection metrics.