Manual upload of multiple files hangs

[h-castle]

Actual behaviour

Manual upload of multiple files hangs in between finishing previous bunch of files and starting next file until:

• the app restarted or
• "uploads" page refreshed or
• screen rotated.

It's not always enough to just refresh the page, most of the time I need to restart the client, but sometimes it's back to work after rotating screen.

Expected behaviour

Considering a stable connection to server, no hangs should occur during transfer.

Steps to reproduce

(On client:)

1. create 100 files (~50MB per file)
2. select all files created on step 1 and start uploading them to your server.

Environment data

General Notes:
All optimizations disabled and all required privileges are granted to the app.

Android version:
MIUI Global 10.1.1.0

Device model:
Redmi 4x, Xiaomi

Stock or customized system:
stock

Nextcloud app version:
3.5.0

Nextcloud server version:
15

[nextcloud-android-bot]

GitMate.io thinks possibly related issues are #2875 (Instant Upload uploads multiple copies), #440 (Instant upload with multiple accounts set), #816 (InstantUpload: some files hang at "waiting"), #2792 (Stuck when upload some files), and #3270 (Upload existing files).

[MeFisto94]

Can confirm, have this issue as well on a freshly installed nextcloud on docker.
100 Files with roughly 2 MB (Pictures), I can see in the Uploaded Tab how it stops uploading after 3-4 items and I have to re-open the app or e.g. click on the notification (Uploading IMG1234.jpg) or other things for it to continue for another 3-4 images.

From the Access Logs I found out "roughly" where it hangs.
It usually does GET /index.php, HEAD theFile, MKCOL some random filename, PROPFIND that name, PUT that name, MOVE that name and then a PROPFIND on theFile.

When the issue appears, it stops after the very first MKCOL. It doesn't proceed to PROPFIND that name.

Device in this case is a Stock Galaxy S7 edge

Edit: Further Details: This seems to be related to the file-size or maybe also to the time it takes to upload them (race condition?), because:
When I upload movies (100MB+), I need to use the workarounds for every single file.
When I upload pictures I took (3-5MB?), I need to use the workaround as stated every 3-4 images.
When I upload pictures I recieved from some Messengers (most < 1MB), everything works as expected.

[stale]

This request did not receive an update in the last 4 weeks. Please take a look again and update the issue with new details, otherwise the issue will be automatically closed in 2 weeks. Thank you!

[GoCyberEd]

I have a similar issue. Only the first few of the files transfer, then it stops. Could be a coincidence, but it always seems to be six files for me. After that, the upload just gives up. No notification/etc. Think this is related? If not I'll make a new issue.

[h-castle]

@GoCyberEd after next such stop please try to restart the app and see if the upload is renewed.

[GoCyberEd]

I tested this feature again, this time 7 out of 12 of the selected photos were uploaded (each about 4mb). The notifications popped up one by one for the first seven. After that, there were no further notifications or any indication that there were files remaining to be uploaded.

I then killed the app and restarted it. Still nothing. If I visit the uploads section of the app, it only shows the successful uploads (not the missing 5).

I'm using the latest version available on Google Play (3.6.1)

[h-castle]

@GoCyberEd did you check weren't these five marked as failed.?
but if upload is really not resumed, it makes sense to open a new ticket. please mention this issue as similar.
Later I will open ticket on server side also.

[BilBomba]

I got the same problem.
Upload stops after 2 or 3 files.
When I go again to the upload section it will resume for another 2 to 3 files.
I'm using the latest Nextcloud (15.0.8) on an Ubuntu server and an Android 8 device uploading.
App Version 3.6.2

I selected upload and delete from source folder but Nextcloud does not delete the files. It probably does not have the correct permissions on the source folder. However it should still upload the files.

[omgmisterbill]

Can confirm similar issue as well. 15.0.8 with android.
I thought it might be power or sleep settings for android but I believe I've turned everything off fit the NC app.
I've been meaning to configure auto uploads for a while but now that I have, I essentially have to select the 'uploading' notification every minute or so to keep the upload going.

[omgmisterbill]

Ok I tried harder and my issue was 'allow background activity'. Doing some googling shows maybe it changes back every reboot. Not sure.

[piojan]

I am having a similar problem with manual upload hanging while going out of the app or screen locks.
I has the app protected by the internal security. After disabling it, the whole bunch of files awaiting upload where correctly processed in the background. Are you using application protection with pin or internal (smartphone security)?

[h-castle]

@piojan no per app means of security have been used.