I had a few backups that were stopping dead in their tracks with this fatal error:
[12-Oct-2012 13:11:14] PHP Fatal error: Allowed memory size of 157286400 bytes exhausted (tried to allocate 49247398 bytes) in my-website.com/wp-content/plugins/wordpress-backup-to-dropbox/Dropbox_API/src/Dropbox/API.php on line 293
HostGator did some troubleshooting and said this:
I changed that to 1150 and its working fine now. I changed this one as a courtesy, as this is a plugin issue, you'll need to change any others you have. I would honestly contact the developer on this one too. They shouldnt' be hardcoding a limit into there that you can't change in the plugin panel.
Why the hard-coded value? Any plans to make this configurable or higher by default?