Hello I have migrated the owncloud installation to a new virtual server:
The new server has the following specs:
Ubuntu 16.04
Web Server: nginx 1.10
PHP v7.08
MariaDB 10.0.25
oC 9.1.0
2 GB RAM
2 vCPU on VMware vSphere 6.0
Since the migration the clients which connects through web dav to our cloud server generate the following error on the server. {"reqId":"3odHhhXav1aSTD8SjxeF","remoteAddr":"77.59.128.126","app":"PHP","message":"stream_get_contents() expects parameter 2 to be integer, string given at \/var\/www\/html\/owncloud\/3rdparty\/sabre\/http\/lib\/Message.php#81.
What does this mean?
The webDAV clients are Synlogy Disk Station which have the application Cloud Sync installed. This webDAV connections create a high load average on the server too. When I stop this connections the load average goes between 1 and 2. As soon as I start the webDAV connections again, load average starts to goes up.
If there was a general bug in owncloud, it would fail as well. Now, you need to figure out what makes your setup special (setup environment, apps used, ..).
Because the initial error shouldn't show up at all, it's the best to open an issue on the bugtracker and to fill out the issue template: https://github.com/owncloud/core/issues