From: Daniil Fedotov <dfedotov@pivotal.io>

Date: Mon, 14 Dec 2015 16:01:24 +0000

Subject: [PATCH] Ignore unknown channel acks in queue

diff --git a/src/rabbit_queue_consumers.erl b/src/rabbit_queue_consumers.erl

index 4b1f07d..7c5bbba 100644

--- a/src/rabbit_queue_consumers.erl

+++ b/src/rabbit_queue_consumers.erl

@@ -276,7 +276,9 @@ subtract_acks([T | TL] = AckTags, Prefix, CTagCounts, AckQ) ->

             subtract_acks(TL, Prefix,

                           orddict:update_counter(CTag, 1, CTagCounts), QTail);

         {{value, V}, QTail} ->

-            subtract_acks(AckTags, [V | Prefix], CTagCounts, QTail)

+            subtract_acks(AckTags, [V | Prefix], CTagCounts, QTail);

+        {empty, _} -> 

+            subtract_acks([], Prefix, CTagCounts, AckQ)

     end.

 possibly_unblock(Update, ChPid, State) ->