ECONNRESET Error while uploading more than 10 files using multer in node js

Question

I need to add 100 files at a time using multer multiple file upload. For now 10 file's can be upload easly , but if I try to add more than 10 files it will throw an error like below,

Error: read ECONNRESET at TLSWrap.onStreamRead (internal/stream_base_commons.js:205:27) { message: 'read ECONNRESET', errno: 'ECONNRESET', code: 'NetworkingError', syscall: 'read', region: 'xx-xx-1', hostname: 'xxxxxxx.s3.amazonaws.com', retryable: true, time: 2020-08-05T05:52:39.950Z, statusCode: 400, storageErrors: [] }

Can you guys pla help , also I need to know the max count of files that multer accepts to upload, is there any way to set timeout for upload function only.

router.post('/files/fileuploads', upload.fields([{
  name: 'multi-files', maxCount: 100
}]), methods.multipleUpload)

const upload = multer({
  storage: multerS3({
    s3: s3,
    bucket: 'xxxxxx',
    metadata: function (req, file, cb) {
      cb(null, {fieldName: file.originalname});
    },
    key: function (req, file, cb) {
      
      cb(null, file.originalname)
    }
  }),
  fileFilter: fileFilter
});

ECONNRESET basically means that the connection with the receiving end was closed, now why was it closed you'll have to debug that. Can be multiple things. Where are you saving the files? — Gandalf the White, Aug 05 '20 at 07:23
@GandalftheWhite The files are saving in AWS S3 bucket storage — aash, Aug 05 '20 at 08:00
The error basically means your S3 connection is giving issues. — Gandalf the White, Aug 05 '20 at 10:00
is your `keepalive` option set to true for your AWS sdk module? — Gandalf the White, Aug 05 '20 at 10:02

score 0 · Answer 1 · answered Aug 29 '22 at 15:56

If anyone needs help with this in the future, here's a blog post on how to upload 100 files at the same time through Node, even though the frontend is using Vue. The backend should be the same.

In the end what I think you should change is simply the backend route to be something like:

router.post("/files/fileuploads", upload.array('file', 101), async (req, res) => {
    return res.status(200).send('OK')
})

ECONNRESET Error while uploading more than 10 files using multer in node js

1 Answers1