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whyour
d9833c17d5
* perf: load HTTP dependencies only in the HTTP worker * docs: record 30-minute idle resource comparison * perf: isolate database initialization from the cluster primary * docs: record isolated database startup resource comparison * perf: avoid an extra shell child in Docker health probes * perf: load notification dependencies only when needed * perf: retain queue cleanup after notification loading comparison * fix: stop page polling after unmount and avoid duplicate fetches * perf: share WebSocket session polling across connections * docs: measure real WebSocket container CPU and memory * perf: reuse JWT validation within each WebSocket session check * perf: bound login IP lookup allocations with an address cache * refactor: limit resource optimization PR to three core changes * docs: benchmark the three core optimizations against develop * chore: remove documentation and benchmark artifacts from PR
48 lines
1.5 KiB
TypeScript
48 lines
1.5 KiB
TypeScript
import { fork } from 'child_process';
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// Keep one-off startup dependencies out of the long-lived cluster primary.
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export function runStartupProcess(entrypoint: string): Promise<void> {
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return new Promise((resolve, reject) => {
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const child = fork(entrypoint, [], { stdio: 'inherit' });
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let interrupted: NodeJS.Signals | undefined;
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let killTimer: NodeJS.Timeout | undefined;
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const terminate = (signal: NodeJS.Signals) => {
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if (interrupted) return;
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interrupted = signal;
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child.kill(signal);
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killTimer = setTimeout(() => child.kill('SIGKILL'), 8000);
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killTimer.unref();
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};
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const onSigterm = () => terminate('SIGTERM');
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const onSigint = () => terminate('SIGINT');
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const onExit = () => child.kill('SIGKILL');
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const cleanup = () => {
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if (killTimer) clearTimeout(killTimer);
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process.removeListener('SIGTERM', onSigterm);
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process.removeListener('SIGINT', onSigint);
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process.removeListener('exit', onExit);
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};
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process.once('SIGTERM', onSigterm);
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process.once('SIGINT', onSigint);
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process.once('exit', onExit);
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child.once('error', (error) => {
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cleanup();
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reject(error);
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});
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child.once('close', (code, signal) => {
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cleanup();
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if (code === 0 && !interrupted) {
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resolve();
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} else {
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reject(
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new Error(
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`Startup process failed (${interrupted || signal || code})`,
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),
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);
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}
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});
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});
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}
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