clippingkk / web / #1060

import { Session } from 'node:inspector/promises'

import fs from 'node:fs'

async function dumpHeapSnapshot() {

  const session = new Session()

  const now = new Date()

  // YYYY-MM-DD_HH-MM-SS

  const filename = `${now.getFullYear()}-${now.getMonth() + 1}-${now.getDate()}_${now.getHours()}-${now.getMinutes()}-${now.getSeconds()}.heapsnapshot`

  const fd = fs.openSync(filename, 'w')

  session.connect()

  session.on('HeapProfiler.addHeapSnapshotChunk', (m) => {

    fs.writeSync(fd, m.params.chunk)

  })

  const result = await session.post('HeapProfiler.takeHeapSnapshot')

  console.log('HeapProfiler.takeHeapSnapshot done:', result)

  session.disconnect()

  fs.closeSync(fd)

}

console.log('Starting heap snapshot dump...')

const THREE_HOURS = 3 * 60 * 60 * 1000

await dumpHeapSnapshot()

setInterval(async () => {

  await dumpHeapSnapshot()

}, THREE_HOURS)