fix(docker): size the Next build worker pool for a 16 GB runner (#11419)

Every "Publish to Docker Hub" run has failed since 2026-08-22 23:14 UTC — 96 of
the last 100. The builder stage dies with:

  ERROR: failed to solve: ResourceExhausted: process "/bin/sh -c ... npm run
  build ..." did not complete successfully: cannot allocate memory

That is the kernel, not V8. The log puts it precisely: the compile phase always
finishes ("✓ Compiled successfully in 4.2min") and the build is killed right
after "Collecting page data using 7 workers".

Each page-data worker is its own process and inherits NODE_OPTIONS, so the
--max-old-space-size ceiling is per PROCESS, not per build. CIRCLE_NODE_TOTAL=8
means 7 workers, and 7 of them alongside the parent no longer fit the 16 GB /
4 vCPU GitHub-hosted runners the pipeline builds on. It was intermittent for a
while before going 100%, which is what a threshold crossed by ordinary codebase
growth looks like — 7 was also oversubscribing a 4 vCPU runner.

Lower the pool to 3 (2 workers) and make it a build arg, so a big builder can
raise it back with `--build-arg OMNIROUTE_BUILD_WORKERS=8`.

tests/unit/docker-build-memory-budget.test.ts pins the budget: it reads the two
ARG defaults out of the Dockerfile and fails if `parent heap + workers × peak`
outgrows the runner, or if the pool oversubscribes its CPUs. Red on the base
(3/3), green here (3/3). The per-worker peak it budgets with is documented as an
inference from this failure, not a measurement.

DOCKER_GUIDE's build-arg table was stale (it still listed the pre-#10060 4096 MB
default); updated and given the new knob plus the symptom to recognize.
CIRCLE_NODE_TOTAL and OMNIROUTE_BUILD_WORKERS are allowlisted in the
fabricated-docs gate with the reason: neither is read via process.env here — one
is a Dockerfile ARG, the other is read by Next itself.

Note: the real proof is the next publish run. This failure mode only reproduces
on a memory-constrained host, so it cannot be reproduced by the unit suite; the
test guards the arithmetic, not the outcome.

Co-authored-by: Xiangzhe <bakryun0718@proton.me>
This commit is contained in:
Diego Rodrigues de Sa e Souza
2026-08-24 15:47:47 -03:00
committed by GitHub
parent bbc7bf4351
commit 8bbe92c692
4 changed files with 172 additions and 62 deletions

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@@ -181,10 +181,23 @@ ENV NODE_OPTIONS="--max-old-space-size=${OMNIROUTE_BUILD_MEMORY_MB}"
# workers for page-data collection (31 on a 32-core builder); on memory-tight
# hosts 31 workers + webpack's multi-GB heap blow past RAM and a worker dies
# with SIGSEGV at teardown ("worker exited with code: null and signal: SIGSEGV"),
# silently leaving no standalone bundle. Next derives the default worker count
# from CIRCLE_NODE_TOTAL (workers = N-1), so N=8 → 7 workers: fast enough while
# fitting comfortably in RAM on any host. (#10060)
ENV CIRCLE_NODE_TOTAL=8
# silently leaving no standalone bundle. Next derives the worker count from
# CIRCLE_NODE_TOTAL (workers = N-1). (#10060)
#
# Lowered 8 → 3 (7 workers → 2). Every page-data worker inherits NODE_OPTIONS
# above, so the ceiling is per PROCESS, not per build: 7 workers on a 16 GB
# GitHub runner (ubuntu-24.04 / ubuntu-24.04-arm, 4 vCPU) exhausted the host and
# buildkit failed the whole step with `ResourceExhausted: ... cannot allocate
# memory`. The compile phase always finished ("✓ Compiled successfully in
# 4.2min"); the kernel killed the build right after "Collecting page data using
# 7 workers". It was intermittent for a while and went 100% on 2026-08-22, which
# is what a threshold being crossed by ordinary codebase growth looks like.
# tests/unit/docker-build-memory-budget.test.ts does the arithmetic and fails if
# either knob is raised past what a 16 GB runner holds. 2 workers also stops
# oversubscribing the runner's 4 vCPU, which 7 did. Override for a big builder:
# `--build-arg OMNIROUTE_BUILD_WORKERS=8`.
ARG OMNIROUTE_BUILD_WORKERS=3
ENV CIRCLE_NODE_TOTAL=${OMNIROUTE_BUILD_WORKERS}
COPY . ./
RUN --mount=type=cache,id=s/92ca8a61-c1ba-421f-a389-d48ac7258c2d-next-cache,target=/app/.build/next/cache \

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@@ -219,13 +219,23 @@ docker build --target runner-cli -t omniroute:cli .
### Build-time resources
Two build args control what the `builder` stage costs. They are build-time only —
Three build args control what the `builder` stage costs. They are build-time only —
`OMNIROUTE_MEMORY_MB` (below) is a separate, runtime knob.
| Build arg | Default | Effect |
| --------------------------- | ------- | ---------------------------------------------------------------------- |
| `OMNIROUTE_USE_TURBOPACK` | `1` | `0` builds with webpack instead. Lower peak memory, slower. |
| `OMNIROUTE_BUILD_MEMORY_MB` | `4096` | V8 heap ceiling (`--max-old-space-size`) for the spawned `next build`. |
| Build arg | Default | Effect |
| --------------------------- | ------- | ----------------------------------------------------------------------------------- |
| `OMNIROUTE_USE_TURBOPACK` | `1` | `0` builds with webpack instead. Lower peak memory, slower. |
| `OMNIROUTE_BUILD_MEMORY_MB` | `6144` | V8 heap ceiling (`--max-old-space-size`) for the spawned `next build`. |
| `OMNIROUTE_BUILD_WORKERS` | `3` | Feeds `CIRCLE_NODE_TOTAL`; Next derives `workers = N - 1` for page-data collection. |
`OMNIROUTE_BUILD_WORKERS` is the one to raise on a big builder and the one to
suspect when a constrained build dies **after** `✓ Compiled successfully`. Each
page-data worker is its own process and inherits `NODE_OPTIONS`, so the heap
ceiling is per process, not per build: the default of `3` (→ 2 workers) is sized
for the 16 GB / 4 vCPU GitHub-hosted runners the publish pipeline uses. At `8`
(→ 7 workers) that runner ran out of memory and buildkit failed the step with
`ResourceExhausted: ... cannot allocate memory`. `tests/unit/docker-build-memory-budget.test.ts`
does the arithmetic and fails if either knob outgrows the runner.
Turbopack compiles in native Rust memory that lives **outside** the V8 heap, so
`OMNIROUTE_BUILD_MEMORY_MB` does not bound it. On a host with a memory ceiling the
@@ -268,12 +278,12 @@ The 1GiB Docker default is a dashboard/light-chat floor, not a production siz
Size **cgroup `--memory` above the heap** — native buffers, SQLite, and compression intermediates sit outside V8.
| Workload | `OMNIROUTE_MEMORY_MB` | Container / cgroup | Notes |
| --- | --- | --- | --- |
| Dashboard, one light chat | `1024` (image default) | ≥2GiB | |
| One coding agent (Claude/Codex/Grok) | `8192` | ≥10GiB | Typical single-session `/v1/responses` |
| Two concurrent long `/v1/responses` | `10240``12288` | ≥1216GiB | Measured V8 abort at ~12GiB heap |
| Three+ concurrent long contexts | do not on one process | serialize / more RAM | Default heavyweight admission is 1 in-flight; raising it without RAM reintroduces the abort |
| Workload | `OMNIROUTE_MEMORY_MB` | Container / cgroup | Notes |
| ------------------------------------ | ---------------------- | -------------------- | ------------------------------------------------------------------------------------------- |
| Dashboard, one light chat | `1024` (image default) | ≥2GiB | |
| One coding agent (Claude/Codex/Grok) | `8192` | ≥10GiB | Typical single-session `/v1/responses` |
| Two concurrent long `/v1/responses` | `10240``12288` | ≥1216GiB | Measured V8 abort at ~12GiB heap |
| Three+ concurrent long contexts | do not on one process | serialize / more RAM | Default heavyweight admission is 1 in-flight; raising it without RAM reintroduces the abort |
`omniroute serve` on bare metal calibrates ~35% of RAM (clamped `[512, 4096]`) when `OMNIROUTE_MEMORY_MB` is **unset**. Docker always sets `1024`, so that calibration never runs in the official image.
@@ -287,19 +297,19 @@ docker run -d --name omniroute --restart unless-stopped --stop-timeout 40 \
Beyond the defaults documented in [ENVIRONMENT.md](../reference/ENVIRONMENT.md), the following variables matter most when running under Docker:
| Variable | Purpose | Default |
| ----------------------------- | --------------------------------------------------------------------------------------------------- | ------------------------ |
| `OMNIROUTE_WS_BRIDGE_SECRET` | Shared secret for the WebSocket bridge. **Required in production** — set to a strong random string. | unset (must be provided) |
| `REDIS_URL` | Connection string for the rate limiter / cache backend | `redis://redis:6379` |
| `REDIS_PORT` | Host-side port for the bundled Redis container | `6379` |
| `REDIS_BIND_HOST` | Host interface the bundled Redis port is published on (loopback unless you add AUTH) | `127.0.0.1` |
| `AUTO_UPDATE_HOST_REPO_DIR` | Host path mounted into `cli` profile at `/workspace/omniroute` for self-update workflows | `.` (current directory) |
| Variable | Purpose | Default |
| ----------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------ |
| `OMNIROUTE_WS_BRIDGE_SECRET` | Shared secret for the WebSocket bridge. **Required in production** — set to a strong random string. | unset (must be provided) |
| `REDIS_URL` | Connection string for the rate limiter / cache backend | `redis://redis:6379` |
| `REDIS_PORT` | Host-side port for the bundled Redis container | `6379` |
| `REDIS_BIND_HOST` | Host interface the bundled Redis port is published on (loopback unless you add AUTH) | `127.0.0.1` |
| `AUTO_UPDATE_HOST_REPO_DIR` | Host path mounted into `cli` profile at `/workspace/omniroute` for self-update workflows | `.` (current directory) |
| `OMNIROUTE_MEMORY_MB` | Runtime Node heap ceiling for the Docker standalone server; overrides the image default above. Coding agents: `8192`+ (see [runtime RAM](#runtime-ram-for-coding-agents)). | `1024` |
| `DASHBOARD_PORT` / `API_PORT` | Override exposed ports for dashboard (20128) and API (20129) | `20128` / `20129` |
| `OMNIROUTE_BASE_PATH` | URL subpath when the app is published behind a reverse proxy (e.g. `/omniroute`) | _(empty = root)_ |
| `NEXT_PUBLIC_BASE_URL` | Public browser origin including the subpath (e.g. `https://host/omniroute`) | unset |
| `PROD_DASHBOARD_PORT` | Host-side dashboard port for `docker-compose.prod.yml` | `20130` |
| `CLIPROXYAPI_PORT` | Host-side port for the `cliproxyapi` sidecar | `8317` |
| `DASHBOARD_PORT` / `API_PORT` | Override exposed ports for dashboard (20128) and API (20129) | `20128` / `20129` |
| `OMNIROUTE_BASE_PATH` | URL subpath when the app is published behind a reverse proxy (e.g. `/omniroute`) | _(empty = root)_ |
| `NEXT_PUBLIC_BASE_URL` | Public browser origin including the subpath (e.g. `https://host/omniroute`) | unset |
| `PROD_DASHBOARD_PORT` | Host-side dashboard port for `docker-compose.prod.yml` | `20130` |
| `CLIPROXYAPI_PORT` | Host-side port for the `cliproxyapi` sidecar | `8317` |
## Reverse Proxy on a Subpath (Traefik / nginx)
@@ -361,11 +371,11 @@ intervals.
For orchestrators (Kubernetes, Nomad, etc.):
| Probe | Prefer | Avoid |
| --- | --- | --- |
| Liveness | HTTP `GET /livez`, or TCP on the main port (`PORT`, default `20128`) | `/api/monitoring/health` as liveness |
| Readiness | HTTP `GET /healthz` | Tight timeouts that treat event-loop busy as dead |
| Deep / blackbox | `/api/monitoring/health` | — |
| Probe | Prefer | Avoid |
| --------------- | -------------------------------------------------------------------- | ------------------------------------------------- |
| Liveness | HTTP `GET /livez`, or TCP on the main port (`PORT`, default `20128`) | `/api/monitoring/health` as liveness |
| Readiness | HTTP `GET /healthz` | Tight timeouts that treat event-loop busy as dead |
| Deep / blackbox | `/api/monitoring/health` | — |
`/healthz` reports process lifecycle (`ok` / `starting` / `stopping`). `/livez` is
process-alive only (200 whenever the handler can run; it does not wait for
@@ -431,10 +441,10 @@ Endpoint tunnel panels (Cloudflare, Tailscale, ngrok) can be shown or hidden fro
## Image Tags
| Image | Tag | Size | Description |
| ------------------------ | -------- | ------ | --------------------- |
| Image | Tag | Size | Description |
| ------------------------ | -------- | ------ | ---------------------------------------------------- |
| `diegosouzapw/omniroute` | `latest` | ~250MB | Highest **published** stable SemVer (not git `main`) |
| `diegosouzapw/omniroute` | `3.8.0` | ~250MB | Pin this class of tag for GitOps |
| `diegosouzapw/omniroute` | `3.8.0` | ~250MB | Pin this class of tag for GitOps |
Multi-platform manifest: `linux/amd64` + `linux/arm64` native (Apple Silicon, AWS Graviton, Raspberry Pi). Docker selects the matching architecture automatically; pass `--platform linux/amd64` if you need to force AMD64 emulation on ARM hosts.
@@ -442,12 +452,12 @@ Multi-platform manifest: `linux/amd64` + `linux/arm64` native (Apple Silicon, AW
OmniRoute publishes separate Docker channels for stable releases, active release-branch testing, and development builds.
| Channel | Source | Mutability | Recommended use |
| ------------------------------- | ----------------------------------- | --------------------------- | ----------------------------------------------------------------------------------------------- |
| `:<version>` / `:<version>-web` | Signed/versioned release | Immutable | Production deployments that pin an exact release |
| Channel | Source | Mutability | Recommended use |
| ------------------------------- | ----------------------------------- | --------------------------- | --------------------------------------------------------------------------------------------------------------------- |
| `:<version>` / `:<version>-web` | Signed/versioned release | Immutable | Production deployments that pin an exact release |
| `:latest` / `:latest-web` | Highest **published** stable SemVer | Mutable stable pointer | Follows stable releases **after** a SemVer publish job — does **not** track `main` or unreleased `release/v*` commits |
| `:next` / `:next-web` | Current default `release/v*` branch | Mutable pre-release pointer | Testing fixes that have landed on the active release branch but are not yet in a stable release |
| `:main` / `:main-web` | `main` branch | Mutable development pointer | Development and integration testing only |
| `:next` / `:next-web` | Current default `release/v*` branch | Mutable pre-release pointer | Testing fixes that have landed on the active release branch but are not yet in a stable release |
| `:main` / `:main-web` | `main` branch | Mutable development pointer | Development and integration testing only |
#### Using the pre-release channel
@@ -491,30 +501,30 @@ A release-branch build can never move `latest`; only an eligible stable semantic
**`latest` is not a currency guarantee for git.** Merged fixes on `main` or on the active `release/v*` branch are **not** in `:latest` until a stable SemVer image is published and the publish job promotes `:latest` (same digest as that SemVer). If `latest` looks frozen while GitHub already shows the fix, pull `:next` to test the release branch or wait for the SemVer tag.
| You want | Use |
| --- | --- |
| GitOps / production that must not drift | Pin `:X.Y.Z` (or the image digest) |
| Follow published stables and accept a recreate on each release | `:latest` |
| Test unreleased `release/v*` commits | `:next` (not production) |
| Test `main` | `:main` (not production) |
| You want | Use |
| -------------------------------------------------------------- | ---------------------------------- |
| GitOps / production that must not drift | Pin `:X.Y.Z` (or the image digest) |
| Follow published stables and accept a recreate on each release | `:latest` |
| Test unreleased `release/v*` commits | `:next` (not production) |
| Test `main` | `:main` (not production) |
## Availability: default SQLite is single-replica
Stock Docker / Kubernetes OmniRoute is **one Node process + one SQLite writer**. High availability is **not supported** on that topology.
| Constraint | Consequence |
| --- | --- |
| Single writer | Do **not** run multiple replicas against the same SQLite file. That corrupts the DB. |
| Constraint | Consequence |
| ------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Single writer | Do **not** run multiple replicas against the same SQLite file. That corrupts the DB. |
| Recreate / restart / HEALTHCHECK kill | **Full outage** of in-flight SSE, dashboard sessions, and in-memory state. Every connected client drops. New requests during the empty-endpoint window get a reverse-proxy **`502 Bad Gateway: Unknown error`**, not OmniRoute JSON — clients cannot distinguish this from a provider failure (#11015). |
| Same event loop as `/healthz` | A busy catalog or compression tick can delay probes; a short timeout then restarts the **only** replica. |
| Same event loop as `/healthz` | A busy catalog or compression tick can delay probes; a short timeout then restarts the **only** replica. |
**Probe matrix** (see also [Kubernetes probe recommendations](../ops/MONITORING_GUIDE.md#kubernetes-probe-recommendations)):
| Probe | Target | Do not use |
| --- | --- | --- |
| Liveness | TCP on `PORT` (default `20128`), or soft HTTP `/healthz` | `/api/monitoring/health` |
| Readiness | HTTP `GET /healthz` | Tight timeouts that treat event-loop busy as dead |
| Deep / humans | `/api/monitoring/health` | Automated kubelet liveness |
| Probe | Target | Do not use |
| ------------- | -------------------------------------------------------- | ------------------------------------------------- |
| Liveness | TCP on `PORT` (default `20128`), or soft HTTP `/healthz` | `/api/monitoring/health` |
| Readiness | HTTP `GET /healthz` | Tight timeouts that treat event-loop busy as dead |
| Deep / humans | `/api/monitoring/health` | Automated kubelet liveness |
**Upgrades:** expect every session to drop. Drain clients if you can; there is no rolling update on default SQLite. Compose `restart: unless-stopped` plus Docker `HEALTHCHECK` will also replace the only process when the container is Unhealthy — same blast radius.
@@ -555,13 +565,13 @@ One Node process is **one V8 heap**. Two overlapping ~3MiB / ~750k-token codi
To go beyond two concurrent **large** jobs **today**:
| Do | Do not |
| --- | --- |
| Run **N containers/pods**, each with its **own** `DATA_DIR` / volume | Set `replicas > 1` against one SQLite file |
| Keep each instance at 12 heavy in-flight and 1216Gi cgroup | Give one process 8× RAM and `max=8` |
| Optional: `QUOTA_STORE_DRIVER=redis` + `QUOTA_STORE_REDIS_URL` for **shared quota counters** | Treat Redis as shared SQLite — it is not |
| Duplicate provider secrets into each instance (or accept partitioned dashboards) | Expect one dashboard / one call-log across instances |
| Front with any load balancer; sticky by API key or session is enough | Require a vendor-specific size-aware middleware |
| Do | Do not |
| -------------------------------------------------------------------------------------------- | ---------------------------------------------------- |
| Run **N containers/pods**, each with its **own** `DATA_DIR` / volume | Set `replicas > 1` against one SQLite file |
| Keep each instance at 12 heavy in-flight and 1216Gi cgroup | Give one process 8× RAM and `max=8` |
| Optional: `QUOTA_STORE_DRIVER=redis` + `QUOTA_STORE_REDIS_URL` for **shared quota counters** | Treat Redis as shared SQLite — it is not |
| Duplicate provider secrets into each instance (or accept partitioned dashboards) | Expect one dashboard / one call-log across instances |
| Front with any load balancer; sticky by API key or session is enough | Require a vendor-specific size-aware middleware |
Hardware: `concurrent_large ≈ N × 2` at ~812Gi heap / ~1216Gi cgroup **per instance**. Host RAM must cover `N × cgroup`, not “one 16Gi pod with N=8.”

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@@ -93,6 +93,14 @@ const ENV_VAR_ALLOWLIST = new Set([
"DATA_DIR",
"REQUIRE_API_KEY",
"OMNIROUTE_BUILD_PROFILE", // build-time only
// Docker builder-stage knobs. Both are documented in docs/guides/DOCKER_GUIDE.md
// because they are the two levers for a memory-constrained build host, but
// neither is read through process.env in this repo: OMNIROUTE_BUILD_WORKERS is
// a Dockerfile ARG that only feeds CIRCLE_NODE_TOTAL, and CIRCLE_NODE_TOTAL is
// read by Next itself (node_modules) to size the page-data worker pool. Pinned
// by tests/unit/docker-build-memory-budget.test.ts.
"OMNIROUTE_BUILD_WORKERS",
"CIRCLE_NODE_TOTAL",
"OMNIROUTE_BUILD_SHA",
"OMNIROUTE_URL", // used by ad-hoc tooling, validated elsewhere
"OMNIROUTE_KEY", // ditto

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@@ -0,0 +1,79 @@
import test from "node:test";
import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import { fileURLToPath } from "node:url";
// The Docker publish workflow builds on GitHub-hosted runners (ubuntu-24.04 and
// ubuntu-24.04-arm): 4 vCPU, 16 GB RAM. Every Next page-data worker is its own
// process and inherits NODE_OPTIONS, so the V8 ceiling is per PROCESS: the
// build's worst case is roughly `workers × OMNIROUTE_BUILD_MEMORY_MB`.
//
// With 7 workers × 6144 MB the runner ran out and buildkit failed the step with
// `ResourceExhausted: ... cannot allocate memory`, right after "Collecting page
// data using 7 workers" — every Docker publish since 2026-08-22 23:14 UTC.
//
// This pins the budget so raising either knob has to be a deliberate change
// that re-does the arithmetic, not a one-line bump that silently reds the
// publish pipeline again.
const RUNNER_MEMORY_MB = 16 * 1024;
// Leave room for buildkit, the snapshotter and page cache.
const HEADROOM_FRACTION = 0.75;
// Planning figure for one page-data worker's peak RSS. It is an INFERENCE, not
// a measurement: 7 workers did not fit in 16 GB alongside the parent, which
// puts the per-worker peak somewhere north of ~1.8 GB. 2.5 GB is that bound
// rounded up, so the budget below stays conservative. If a future build OOMs
// again with a worker count this test accepts, raise this number — do not
// weaken the budget.
const WORKER_PEAK_MB = 2560;
const dockerfile = readFileSync(
fileURLToPath(new URL("../../Dockerfile", import.meta.url)),
"utf8"
);
function readArgDefault(name: string): number {
const match = dockerfile.match(new RegExp(`^ARG ${name}=(\\d+)$`, "m"));
assert.ok(match, `Dockerfile no longer declares ARG ${name}`);
return Number(match![1]);
}
test("the Docker build's worker pool is derived from OMNIROUTE_BUILD_WORKERS", () => {
// assert.ok(boolean), not assert.match — a failing assert.match dumps the
// whole Dockerfile into the report.
assert.ok(
/^ENV CIRCLE_NODE_TOTAL=\$\{OMNIROUTE_BUILD_WORKERS\}$/m.test(dockerfile),
"CIRCLE_NODE_TOTAL must stay wired to the build arg so a big builder can raise it"
);
assert.ok(
/^ENV NODE_OPTIONS="--max-old-space-size=\$\{OMNIROUTE_BUILD_MEMORY_MB\}"$/m.test(dockerfile),
"the build heap ceiling must stay wired to OMNIROUTE_BUILD_MEMORY_MB"
);
});
test("worker count × per-process heap fits a 16 GB GitHub runner", () => {
const workerPool = readArgDefault("OMNIROUTE_BUILD_WORKERS");
const heapMb = readArgDefault("OMNIROUTE_BUILD_MEMORY_MB");
// Next derives `workers = CIRCLE_NODE_TOTAL - 1`.
const workers = workerPool - 1;
assert.ok(workers >= 1, `CIRCLE_NODE_TOTAL=${workerPool} leaves no build workers`);
// The parent `next build` process is the one that genuinely needs the raised
// ceiling (the webpack/turbopack production pass, #4076); the workers are
// budgeted at their inferred peak instead.
const worstCaseMb = heapMb + workers * WORKER_PEAK_MB;
const budgetMb = RUNNER_MEMORY_MB * HEADROOM_FRACTION;
assert.ok(
worstCaseMb <= budgetMb,
`parent ${heapMb} MB + ${workers} workers × ${WORKER_PEAK_MB} MB = ${worstCaseMb} MB ` +
`exceeds the ${budgetMb} MB budget on a ${RUNNER_MEMORY_MB} MB runner — the Docker ` +
`publish step dies with "ResourceExhausted: cannot allocate memory" during page-data ` +
`collection`
);
});
test("the worker pool does not oversubscribe the runner's 4 vCPU", () => {
const workers = readArgDefault("OMNIROUTE_BUILD_WORKERS") - 1;
assert.ok(workers <= 4, `${workers} workers oversubscribe a 4 vCPU runner`);
});