About owncloud 9.1

We just fresh installed owncloud 9.1. We can login, upload, download files as normal.

We found there is a owncloud.log and it is full of "curl_multi_exec() has been disabled for security reasons" message. It is because our web hosting does not allow curl.

May I know is there any impact if we use owncloud without curl?

Also, how can we limit the owncloud.log?
I tried to setup 'log_rotate_size' => 26214400, at the config.php. However, the log still keep growing.

Thank you.

Please use one thread for each questions for the reason described here:

When creating a new thread please also use a thread topic other then "about ownCloud 9.1" which doesn't tell anything about your issue in the first place.