This WP install is on a Dreamhost shared hosting plan and it doesn't look like php error logging is enabled. I'll try to get that enabled and see what it shows.
In the meantime, I'm running PHP 5.3 FastCGI and WordPress 3.4. Here are the backup settings:
- Local folder path: wp-content/backup
- Drive folder id: [the folder id]
- Authorization: granted
- When to backup: daily
- Store a maximum of: 10 backups locally and 2 backups on Google Drive
- What to back up: Database, Content, Uploads, Plugins
- Chunk size: 0.5MB
- Time limit: 120 seconds
According to the backup log, the archive file size is 78MB. Yesterday there were no log entries after the
NOTICE: Attempting to upload archive to Google Drive, but when I tried it again today I got the following:
ERROR: name lookup timed out (http_request_failed)
NOTICE: Backup process completed in 59.28 seconds. Initial PHP memory usage was 20 MB and the backup process used another 7 MB of RAM.
And although php error logging is not enabled, I checked the http error log and the following entry was created each time I tried to manually run the backup:
Premature end of script headers: index.php
That's all the info I have at this point, but I'll try to enable php logging and let you know what I find out.