humanmade
"Upload folder is not writable. Export and file upload features will not be functional."
This may not be an issue with the plugin itself, however I wonder if you folks have any ideas as after much investigation I am clueless.
When the plugin is disabled WP has no trouble with media. However, when the plugin is enabled I receive this message in the WP backend:
Upload folder is not writable. Export and file upload features will not be functional.
...and all WP media operations are not working, e.g. upload or listing media items.
I can confirm that the box has read/write access to the S3 bucket using the wp s3-uploads verify command.
Any ideas would be welcomed.
As a follow-up to this, I've discovered that after being registered for the s3 protocol, the S3_Uploads_Stream_Wrapper class's url_stat function isn't being called as part of any of the stat-related functions (http://php.net/manual/en/function.stat.php).
Any thoughts?
On our setup this was resolved by adjusting PHP to set 'allow_url_fopen' On in php.ini
