Bull生成2000个文件时出现的内存泄漏问题node.js
- 在Bull队列处理器的每个处理程序函数中，确认每个被处理的文件被正确关闭和处理，以防止内存泄漏：
const processFile = (file) => { // do something with file file.close() // close file to prevent memory leaks }
queue.process(async (job) => { const file = await getFile(job.data.fileId) processFile(file) })
- 如果在处理程序中遇到内存泄漏问题，请使用Heapdump定位内存泄漏的源头，进一步调试和修复代码：
const heapdump = require('heapdump')
const processFile = (file) => { // do something with file heapdump.writeSnapshot() // write heapdump snapshot to locate memory leaks file.close() // close file to prevent memory leaks }
queue.process(async (job) => { const file = await getFile(job.data.fileId) processFile(file) })
- 在生成大量文件时，确保将它们分块处理，而不是一次性处理所有文件，以避免内存泄漏问题：
const processFilesInChunks = async (files) => { const chunkSize = 100 // process files in chunks of 100 const numChunks = Math.ceil(files.length / chunkSize)
for (let i = 0; i < numChunks; i++) { const chunk = files.slice(i * chunkSize, (i + 1) * chunkSize)
await Promise.all(chunk.map(async (file) => {
// do something with file
await processFile(file)
}))
} }
const files = await generateFiles(2000) processFilesInChunks(files)