Last modified: 2013-11-19 22:33:06 UTC
I'm not sure if we do this now or not but it'd be good to make sure of: we should still serve search traffic even if one of the shards is down. In this case something is better than nothing. In our case we don't need to log anything because we'll notice this via icinga alerts already. It'd be nice to log something though. It might also be nice if this were configurable so folks without as much monitoring could turn it off.
Checked this in development by hand and with CirrusSearch - Elasticsearch will serve searches even with some shards down.