[Support] Possible EventEmitter memory leak detected.

[shizetao]

Describe the problem（描述问题）

(node:115349) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 open listeners added to [ReadStream]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:591:17)
    at ReadStream.addListener (node:events:609:10)
    at ReadStream.Readable.on (node:internal/streams/readable:928:35)
    at destroyReadStream (/app/node_modules/destroy/index.js:64:12)
    at destroy (/app/node_modules/destroy/index.js:37:5)
    at AsyncResource.runInAsyncScope (node:async_hooks:203:9)
    at listener (/app/node_modules/on-finished/index.js:170:15)
    at onFinish (app/node_modules/on-finished/index.js:101:5)
    at callback (/app/node_modules/ee-first/index.js:55:10)

Midway Versions（Midway 版本）

app : npx midway-version@latest
Need to install the following packages:
[email protected]
Ok to proceed? (y) y
>> Start to check your midway component version...

✓ @midwayjs/faas-typings(not installed)
✓ @midwayjs/fc-starter(not installed)
✓ @midwayjs/serverless-http-parser(not installed)
✓ @midwayjs/async-hooks-context-manager(3.14.4)
✓ @midwayjs/axios(not installed)
✓ @midwayjs/bootstrap(3.14.4)
✓ @midwayjs/bull(3.14.7)
✓ @midwayjs/bull-board(not installed)
✓ @midwayjs/cache-manager(3.14.7)
✓ @midwayjs/captcha(3.14.7)
✓ @midwayjs/casbin(not installed)
✓ @midwayjs/casbin-redis-adapter(not installed)
✓ @midwayjs/casbin-typeorm-adapter(not installed)
✓ @midwayjs/code-dye(not installed)
✓ @midwayjs/consul(not installed)
✓ @midwayjs/core(3.14.4)
✓ @midwayjs/cos(not installed)
✓ @midwayjs/cron(3.14.7)
✓ @midwayjs/cross-domain(3.14.7)
✓ @midwayjs/decorator(3.14.4)
✓ @midwayjs/etcd(not installed)
✓ @midwayjs/express-session(not installed)
✓ @midwayjs/faas(not installed)
✓ @midwayjs/grpc(not installed)
✓ @midwayjs/http-proxy(not installed)
✓ @midwayjs/i18n(3.14.7)
✓ @midwayjs/info(3.14.7)
✓ @midwayjs/jwt(not installed)
✓ @midwayjs/kafka(not installed)
✓ @midwayjs/leoric(not installed)
✓ @midwayjs/mikro(not installed)
✖ @midwayjs/mock(current: 3.15.8, allow: ["3.14.4","3.14.7"])
✓ @midwayjs/mongoose(not installed)
✓ @midwayjs/oss(not installed)
✓ @midwayjs/otel(not installed)
✓ @midwayjs/passport(not installed)
✓ @midwayjs/process-agent(not installed)
✓ @midwayjs/prometheus(not installed)
✓ @midwayjs/prometheus-socket-io(not installed)
✓ @midwayjs/rabbitmq(not installed)
✓ @midwayjs/redis(3.14.7)
✓ @midwayjs/security(3.14.7)
✓ @midwayjs/sequelize(3.14.7)
✓ @midwayjs/session(3.14.7)
✓ @midwayjs/socketio(not installed)
✓ @midwayjs/static-file(3.14.7)
✓ @midwayjs/swagger(not installed)
✓ @midwayjs/tablestore(not installed)
✓ @midwayjs/tags(not installed)
✓ @midwayjs/typegoose(not installed)
✓ @midwayjs/typeorm(not installed)
✓ @midwayjs/upload(3.14.7)
✓ @midwayjs/validate(3.14.7)
✓ @midwayjs/version(3.14.8)
✓ @midwayjs/view(3.14.7)
✓ @midwayjs/view-ejs(not installed)
✓ @midwayjs/view-nunjucks(3.14.7)
✓ @midwayjs/web(not installed)
✓ @midwayjs/express(not installed)
✓ @midwayjs/koa(3.14.7)
✓ @midwayjs/ws(not installed)
**********************************************************************
>> Check complete, found  1  problem.
>> Use -u to show update list.
>> Use -u -w to write file.
>> Please check the result above.
**********************************************************************

[czy88840616]

什么流没关闭吧，看堆栈没有相关信息。

[shizetao]

对的仅仅是报错 没有任何信息

[czy88840616]

没有报错没法反推哪里有问题啊，能单独复现么

[shizetao]

会不会是静态资源404导致的

[czy88840616]

404 会有 404 的报错的吧？

[shizetao]

谢谢大佬回复,我有时间复现一下最小仓

[xrwben]

我最近也使用静态文件托管组件@midwayjs/static-file@3也遇到了这个提示 有解决方法吗

[ Midway ] Auto reload. [change] configuration.ts
2024-06-21 10:55:33.267 INFO 26828 [midway:static] starting static serve /public -> D:\node-test\app\public
(node:26828) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 open listeners added to [ReadStream]. Use emitter.setMaxListeners() to increase limit
(Use node --trace-warnings ... to show where the warning was created)

(node:26828) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 open listeners added to [ReadStream]. Use emitter.setMaxListeners() to increase limit

[czy88840616]

node 的正常提示而已，不想看到 node 提示里也有，emitter.setMaxListeners() 设置就好了