Abstract
We present an implementation of the eventually perfect failure detector [Formula: see text] from the original hierarchy of the Chandra-Toueg [3] oracles on an arbitrary partitionable network composed of unreliable channels that can lose and reorder messages. Prior implementations of [Formula: see text] have assumed different partially synchronous models ranging from bounded point-to-point message delay and reliable communication to unbounded message size and known network topologies. We implement [Formula: see text] under very weak assumptions on an arbitrary, partitionable network composed of Average Delayed/Dropped (ADD) channels [11] to model unreliable communication. Unlike older implementations, our failure detection algorithm uses bounded-sized messages to eventually detect all nodes that are unreachable (crashed or disconnected) from it.
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