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The SWMR ABD algorithm cannot emulate conditional write per se, but if the single writer is a stable leader, with a fault-tolerant leader election algorithm and appropriate modifications to the ABD algorithm (i.e. epoch counters in each message), it is possible to emulate conditional write, as shown in this industry paper: https://arxiv.org/abs/1702.04242. ...


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Full reliability is simply not possible in (distributed) systems; at some point of fractional system failure you reach a level where system state and/or data is no longer recoverable. You should consider that this is dependent not only on node failure, but also on data distortion (bits might flip as they travel across the network, etc.). As a result, you can ...


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