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fix: keep Gateway startup alive with V8 contradiction exit mode (#171490)

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Dallin Romney authored and GitHub committed 2026-10-13 17:48:42 -07:00
1 parent d3c6da5773
commit 7c1b789ca5
2 files changed
+11 -10
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src/infra/worker-heap-flag.test.ts
+9 -8
View File
@@ -49,12 +49,13 @@ describe.skipIf(Boolean(process.versions.bun))("worker heap limits", () => {
},
);
it.each(["--freeze-flags-after-init", "--abort-on-contradictory-flags"])(
"keeps the process alive with %s",
(flag) => {
const [before, after, worker] = measure(["--max-old-space-size=1024", flag]);
expect(after).toBe(before);
expect(worker).toBe(before);
},
);
it.each([
"--freeze-flags-after-init",
"--abort-on-contradictory-flags",
"--exit-on-contradictory-flags",
])("keeps the process alive with %s", (flag) => {
const [before, after, worker] = measure(["--max-old-space-size=1024", flag]);
expect(after).toBe(before);
expect(worker).toBe(before);
});
});
worker-heap-flag.mjs
+2 -2
View File
@@ -4,11 +4,11 @@ import { isMainThread } from "node:worker_threads";
const startupFlags = `${process.execArgv.join(" ")} ${process.env.NODE_OPTIONS ?? ""}`;
const heapFlag = /--max[-_](?:old[-_]space[-_]size(?:[-_]percentage)?|heap[-_]size)(?:=|\s)/u;
const immutableFlags =
/--(?:freeze[-_]flags[-_]after[-_]init|abort[-_]on[-_]contradictory[-_]flags)(?:=(?:true|1))?(?:\s|$)/u;
/--(?:freeze[-_]flags[-_]after[-_]init|(?:abort|exit)[-_]on[-_]contradictory[-_]flags)(?:=(?:true|1))?(?:\s|$)/u;
if (isMainThread && !process.versions.bun && heapFlag.test(startupFlags)) {
if (immutableFlags.test(startupFlags)) {
// These V8 modes abort natively on a flag change; JavaScript cannot catch it.
// These V8 modes terminate natively on a flag change; JavaScript cannot catch it.
process.emitWarning("V8 startup flags prevent enforcing per-worker heap limits.");
} else {
// Existing isolates retain their limits. Only future isolates read these overrides.