As some of you know we had a chain of CirrusSearch outages and ultimately rolled all wikis back to lucene search.  We tracked down three out of four major issues yesterday and I'm planning on spending the morning hunting down the last one.  We've made a list of bugs we're going to have to take care of before redeploying Cirrus (https://bugzilla.wikimedia.org/buglist.cgi?list_id=251172&resolution=---&resolution=LATER&resolution=DUPLICATE&status_whiteboard_type=allwordssubstr&query_format=advanced&status_whiteboard=cirrus_reenable&product=MediaWiki&product=MediaWiki%20extensions&product=Wikimedia).  Looking at it, I've got at least a week of work there.  Given that WMF isn't doing any non-emergency deployments next week we're looking at early December before I bring CirrusSearch back.