Can't download files larger than 2Gb

[krot-mstu]

Actual behaviour

Owncloud client can't download files larger than 2Gb with error ": The downloaded file is empty despite the server announced it should have been Gb "
I also can't download file via GUI with the same error. It looks like core issue, not a bug in the client.

Steps to reproduce

Put file larger than 2Gb into the owncloud folder on the client_1
Wait while it is synced to the server. In this moment file is available on the server in the /owncloud/data/ folder
Client_2 on the another PC shows error like ": The downloaded file is empty despite the server announced it should have been Gb "

Server configuration

Operating system:
Linux raspberry 4.1.19-v7+ #858 SMP Tue Mar 15 15:56:00 GMT 2016 armv7l armv7l armv7l GNU/Linux

Web server:
Apache/2.4.18 (Ubuntu)

Database:
"dbtype": "sqlite3",
"version": "9.1.4.2",

PHP version:
php 7

ownCloud version:
ownCloud version": "9.1.4.2

Storage backend (external storage):
local disk
Client configuration

Client version:
ownCloud version 2.3.0

Operating system:
Linux PC 4.8.0-41-generic #44-Ubuntu SMP Fri Mar 3 15:27:17 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
(Ubuntu 16.10)

OS language:
En

Qt version used by client package (Linux only, see also Settings dialog):
Using Qt 4.8.7

Client package (From ownCloud or distro) (Linux only):
2.3.0 rev 832599

Installation path of client:
/usr/bin/owncloud
Logs

Client logfile: Output of owncloud --logwindow or owncloud --logfile log.txt
03-12 02:05:07:499 0x55e6b48dfce0 * Ignoring file "xxx/.xxx.ISO.~1e386f47"
03-12 02:05:07:505 0x55e6b48dfce0 * Ignoring file "xxxx/.xxx.vmdk.~5918e0c8"
....

Web server error log:
Error PHP stream_copy_to_stream() expects parameter 3 to be integer, string given at /var/www/owncloud/3rdparty/sabre/http/lib/Sapi.php#78 2017-03-11T22:00:09+00:00
Error PHP stream_copy_to_stream() expects parameter 3 to be integer, string given at /var/www/owncloud/3rdparty/sabre/http/lib/Sapi.php#78 2017-03-11T22:00:08+00:00
Error PHP stream_copy_to_stream() expects parameter 3 to be integer, string given at /var/www/owncloud/3rdparty/sabre/http/lib/Sapi.php#78 2017-03-11T23:06:31+00:00
Error PHP stream_copy_to_stream() expects parameter 3 to be integer, string given at /var/www/owncloud/3rdparty/sabre/http/lib/Sapi.php#78 2017-03-11T23:06:31+00:00
Error PHP stream_copy_to_stream() expects parameter 3 to be integer, string given at /var/www/owncloud/3rdparty/sabre/http/lib/Sapi.php#78 2017-03-11T23:06:31+00:00
Error PHP stream_copy_to_stream() expects parameter 3 to be integer, string given at /var/www/owncloud/3rdparty/sabre/http/lib/Sapi.php#78 2017-03-11T23:05:07+00:00

Server logfile: ownCloud log (data/owncloud.log):
{"reqId":"48dOA2XljQfDJM5+9dlU","remoteAddr":"xxx","app":"PHP","message":"stream_copy_to_stream() expects parameter 3 to be integer, string given at /var/www/owncloud/3rdparty/sabre/http/lib/Sapi.php#78","level":3,"time":"2017-03-11T23:06:31+00:00","method":"GET","url":"/owncloud/remote.php/webdav/xxxx","user":"xxx"}
{"reqId":"5mntxR8vxaRghWxPXOdw","remoteAddr":"xxx","app":"PHP","message":"stream_copy_to_stream() expects parameter 3 to be integer, string given at /var/www/owncloud/3rdparty/sabre/http/lib/Sapi.php#78","level":3,"time":"2017-03-11T23:06:32+00:00","method":"GET","url":"/owncloud/remote.php/webdav/xxxx","user":"xxx"}
{"reqId":"yY9yE0YAhNmdHw0I7232","remoteAddr":"192.168.1.226","app":"PHP","message":"stream_copy_to_stream() expects parameter 3 to be integer, string given at /var/www/owncloud/3rdparty/sabre/http/lib/Sapi.php#78","level":3,"time":"2017-03-11T23:06:32+00:00","method":"GET","url":"/owncloud/remote.php/webdav/vmware/xxx","user":"xxx"}

[ghost]

You most likely need to switch to a 64bit platform as PHP on 32bit systems like the PI2 is not able to handle files larger then 2GB. This is a limit on your side which can't be circumvented by ownCloud.

The errors are most likely something which still needs to be gracefully handled by oC.

[hodyroff]

You will need a server side 64bit OS/Platform, indeed. If you switch on a limit of 1.9GB in your ownCloud you will get a graceful error.
If somebody finds a way to make the error handling generally more elegant you would be more then welcome ;)

[ghost]

@hodyroff Seems there is now sabre-http which ships with a workaround for 32bit systems to circuvment this issue: sabre-io/http#74, https://github.com/fruux/sabre-http/blob/master/CHANGELOG.md#423-2017-06-12

Another refs: #23788, sabre-io/http#77

[ghost]

Created #28133 and requested to update sabre-http to 4.2.3

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.