tree 1f5fb28ea194ac6c4d514bb1355435bf126d2ab2
parent cd4c5c70c146e74a344b42e7e636e8e81f08495c
author Tony Sun <tony.sun@cloudant.com> 1485984206 -0800
committer Tony Sun <tony.sun@cloudant.com> 1486667001 -0800

Introduce 503 error when nodes are all unavailable.

In rare situations when all nodes are down or in maintenance mode and
no workers can service a request, we return a 503 to the user.

COUCHDB-3289