Hi, The Storm documentation mentions setting topology.max.spout.pending as a way of preventing "queue explosion"[1]. What is meant by this? Tuples piling up and eventually causing out of memory exceptions? If I understand correctly, the topology's queue and buffer sizes are all limited [2] - so at what point could something explode even without limiting the maximum number of pending tuples and/or the back pressure mechanism activated.
Thanks, David [1] http://storm.apache.org/releases/1.0.0/Running-topologies-on-a-production-cluster.html [2] http://www.michael-noll.com/blog/2013/06/21/understanding-storm-internal-message-buffers/