Demo Technical
Getting Started

Architecture overview

Control plane, data plane, and isolate limits for Relay Edge.

Relay Edge runs isolated V8 isolates at points of presence (PoPs). A control plane schedules deployments; a data plane serves traffic without leaving the region unless you opt into multi-region replication.
Network visualization abstract
Photo by Growtika on Unsplash.

Request path

  1. DNS resolves to the nearest healthy PoP.
  2. TLS terminates at the edge; mTLS optional for private APIs.
  3. The isolate executes with a hard memory and CPU budget.
  4. Logs and traces stream asynchronously to your sink.

Isolation model

ResourceLimitNotes
Memory128 MBConfigurable up to 512 MB
CPU time50 ms softHard kill at 100 ms
Wall time30 sStreaming responses extend this
Outbound sockets6 concurrentShared across subrequests
Lp99=Lpop+Lcompute+LupstreamL_{p99} = L_{pop} + L_{compute} + L_{upstream}
Tip
Design for failure isolation. A single slow upstream should not exhaust the PoP connection pool—use timeouts and circuit breakers.
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