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read-write quorum system

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区分了read-write quorum system以及majority系统之间的区别

img

针对

的情况,针对其中的网络隔离的情况,read-write符合替换,但majority达不到要求

join consensus算法

M(abc) x M(bcd) = {
    ab ∪ bc,
    ab ∪ cd,
    ab ∪ bd,
    bc ∪ bc,
    bc ∪ cd,
    bc ∪ bd,
    ac ∪ bc,
    ac ∪ cd,
    ac ∪ bd,
} = {
    abc,
    abcd,
    abd,
    acd,
    bc,
    bcd,
} = {M(a,b,c,d),{b,c}}

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