basho/riak_kv — pull request #822 by andrewjstone (2014-01-28 23:59:08+00:00)
Title: Ajs overload plumbing

Process overload for coverage queries and other queries that were previously not handled. Return `{error, mailbox_overload}` when the riak_core_vnode_proxy tells us we are overloaded.

Part of a fix for #753
Should be merged together with https://github.com/basho/riak_core/pull/513