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Writes lost during replica churn #38

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atamon opened this issue Sep 27, 2021 · 0 comments

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atamon commented Sep 27, 2021

Running #37 the following scenario may result in lost writes:

All 3 replicas down
replica 0 goes up, starts state transfer to 1 and 2. state transfer succeeds
replica 0 and 1 goes down again
clients write to replica 2
Split brain, manual scale down required
replica 0 goes up as "new cluster", begins state transfer to 1 and again
writes written to replica 1 or 2 are lost

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