<quote name="Greg Grossmeier" date="2015-05-28" time="12:18:07 -0700">
See also: https://phabricator.wikimedia.org/maniphest/?statuses=open%28%29&project... (aka: open tasks filed in the #Wikimedia-log-errors project on phabricator)
A maybe better way to view that query: https://phabricator.wikimedia.org/maniphest/query/8G19mXxCyGox/#R
That one is sorted by (phabricator) project, so you can more easily see which code repository is (probably) responsible for the error.