I have an odd error coming from Drush when I perform module updates and other commands (it's most consistently comes from module updates). Near the end of the command execution this message pops up:
xmlrpc() error: (-1001) unable to parse URL
Some cursory Googling produces that its likely an error popping up in drupal_http_request. I'm not sure where however since I'm not too familiar with the Drush code base.
I ran drush with the
--debug switch for more information but that didn't tell me much other than this message typically pops up after the
drush_cache_command_clear() being executed.
What is causing this error?