The fallacies of distributed computing are a set of assertions made by L Peter Deutsch and others at Sun Microsystems describing false assumptions that programmers new to distributed applications invariably make.
The fallacies
The fallacies are
The network is reliable;
Latency is zero;
Bandwidth is infinite;
The network is secure;
Topology doesn't change;
There is one administrator;
Transport cost is zero;
The network is homogeneous.The effects of the fallacies
Software applications are written with little error-handling on networking errors. During a network outage, such applications may stall or infinitely wait for an answer packet, permanently consuming memory or other resources. When the failed network becomes available, those applications may also fail to retry any stalled operations or require a (manual) restart.
Ignorance of network latency, and of the packet loss it can cause, induces application- and transport-layer developers to allow unbounded traffic, greatly...
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