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# &)YFE50>1( q)wFcp7.`C8H2&)91 ()=8P502C5@1 6>621 6C $K3A;$K021w*2@CF3a3511H/CD351981 626$'YD1 621 3?H M%1 H-.`141 3I $'3A; &:3 62E m1 0>6$'3 CD9&)626>&:CD3K'P%1 0 SXCF0>9$'3%@1OST$K&)(:Ea021$'3A; $'()(/CDH2B51 0891 6>6J$KYF1 6$'0>1 ;?1 ()&)eF14021&:981/E53a&:H>6&:M%11 02e?&d@1&:98P5()1 9143vH$'H>&:CD3566 C'S w_* @_CF35351N@H21C @_1 626>1 6$K3A;C'S *2;?&)6J@CD35351B YF1 3a1 0J$K(:&)b 18H2B51835CFH>&)CF356 CKS @CF3a35116$K3A; ;?&)6J@_CF35351N@H2102C5;?EA@1N;&) 3 6 2q 7.WCP502C5@1 6>621 6 $K021$O# P ' ' [&:3 m& XJw Z_$K3A; $'021H>&:981 ()= &) 3 2f?$'3A; X Z$K()(AM5EaH $'Hs9CF6>HCF351981 626$'YF1W62143vHWM%1 H-.`141 3H>B51/H-.WCP502C5@1 6>621 6[&)3 m$K021/;?14(:&)eD1 0216J$'YD1 6.&:H>B $H>0J$K356298&:6>62&)CF3 ; 1 (d$N=oYD0210J$K356298&:6>62&)CF3;?1 (d$N=OC'S`$KH9CF6>H4$'6! ST$'6>H%q7B51 621N@CF3A; @CF3a62HJ$K3?H .$'6 &)3?H20>C ; EA@11 0298&)351OH2B51 H20$'356>9&)626>&)CF3; 1 (d$N=C'GS W .&:H>B5&)362CF981/M%CFE53%;?6 F6y 2qW7B51[SXCD(:()C'.&)35Y; 1 35&)H2&)CD3CK*S *2;?&)6J@CD353511(:C'. O981 626$'YD1 6CF9 $ P502C5@1 6>6 8&:3 $ H2&)91&)3vH>1 02eF$K5( `& $K3?=o981 626$'YF1 W H2BA$KH 0>10J$'3a629&)6>62&)CF3o; 1 (d$N=C'S/98CF021 H2BA$K3 $ H>&)91 E53a&:H>6 XX6>1 1# &)YFEa02;1 q Z4qO, @CD99CD362&)H2EA$KH2&)CF3&)3 .B5&d@>BH-.WCP50>C @_1 626>1 6"$K021 *2;?&)6J@_CF35351N@H21B51 9 &)6/C'eD1 02()Cv$D;?1B51 P50>1C @_1 626>1 6CvC9$K3? = ST$'&)()E5021C5@ @Ea0202143A@1 6Nf]H2B%$'H/&)6NfA.Ba1 3oH>B51621 0>eF1 0&)6/35C()CF3aYF1 0[PA$'0>H/C'S$O62H$'M5()1 P%$'02H>&)H2&)CF3f%&)H.&)()( 62&)YF3A$K(R&)H26/@()&)1 3?H26H>BA$'H&)HW62.&)HJ@>B511 9$K3vH>&d@61 q Ac1p&:140J$'0@>Bv=CKS]ST$'&)(+*2$N. $K021621 0>e?&Q@_1 6 H2C862E5PaPACD02H[ST$'Ea(:H *TH>CF()1 0$'3?HPA$'0>H2&)H2&)CD3A$'M5()1 0>11 02e?&d@1 6W91N$'356H2B%$'H]H>B51 026>H`;?&)021N@H2()=O;?1 P%1 3A;?6WE5P%CF3H2B516>1=?62H21496 $K021 CKSXH214335CFH@CF9 * P5()1 H>1 ()= 6>=?3A@>B502CD35CFE56Nf/&)3 P%$'02H>&d@E5(d$'0Nf.`1$'021 @CD3562&d;?1 0>&)35Y 6>=v6>H21 986&)3 .B5&d@>B H>B51P50>CFMA$KM5&)(:&)H-= H2BA$KH PA$K02H2&)H>&:CD356C5@ @E50W&)6]35CFHs351 YF()&)YF&)M5()1Fq Ba1 3$62=?6>H21 9 62Pa(:&)H>6]E5PO&)3P%$'02H>&)H2&)CF356NfFH>B51&d;?11 ()=6>=v3%@2Ba02CF3aCFE56 M%1 BA$Ne?&)CFC0 X 621 1O# &)YFE50>1 q Z cW$'()(Pa02C5@1 6>621 6 &)3$OP%$'02H>&)H2&)CF3$'0>(1 +N*2@CD353511B11;?&)6J@CD3535162&d;?1H>B51 &)0 PA$K02H>&:H>&)CF3f &-q 1DqH>B51 = ;?C35CDH 021H2&)H2&)CD3561 9 CD35()=6>P5()&:H>6`EaP&)362E%@2BL&Q; 1CFH2C5@CD()6 .WCFE5(d; M%162H>&:()(M%1021N$'62CD3A$'Ma(:= 6>&)9P5()1O62&)3A@_1H2B51P50>CFH>C @_CF()6;?C 35CDHBA$NeD1H2C BA$K3A;?()16>&:H>EA$'H>&)CF356O()&)tF1 H2Ba1O&:3%$'M5&)()&)H-=CKS 6>CF981P50>C5@1 626>1 6H>Co@CD99OE535&d@ $KH21.&)H2B CDH2B51 0 P502C5@1 6>621 68&)3oH>B516$'91PA$K02H2&)H>&:CD3fRCD0 62P%CF0$F;?&d@[914626J$KYF1 6/$K020>&:eF$K()6]SX0>CF9 CDH2B5140/PA$K02H2&)H>&:CD356B51O$'M%C'eF1621 356>1Fq#aCF01 A$'98P5()1Ff SXCD062CF981H2&)91&)3?H21 0>eF$'(U$Pa02C5@1 6>6 9$N=OMA1()&)35tF1C$OP50>C @_1 62C6 M?=$ 2CF3a1*T.$N=@_CF35351N@H2&)CF3 Af%&-q 1Dq $@_CF35351N@H2&)CF3 H>BA$'H$'()()C'.6 H>C62143A;H2&)914(:=891 6>6J$KYF1 6[H2 C M5E5H ;?C?1 6 3aCFH $K()(:C'. H2C0>1&)91 ()= 914626J$KYF1 6sSX0>CF9 ;XX62141# &:YDE5021 q % Z qZ/Ea1/H2C()C5@ $'(%351 H-.WCF0>tOC'eF1 0>(:C?$F;RfKH-.`C Pa02C5@1 6>621 C6 e$'3AA; T9&)YDBvH MA1 ()&)35tF1&:H>&)eF1Ff?&-q 1Fq 1BCKSUH>B51/P50>C5@1 626[PA$'&)0>6 XhTQV?Z$K3AD ; XV7 OZW98&)YFB?H]M%1 @_CF35351N@H21C5@1 626PA$K&)50 XT OZW&)635CDH/@CF353a11 1"# &)YFEa02 1 q %Z q
w#+
0-connected timely process
ideal partition
# &)YFE50>1 q 5c 2; 11 6 &)3H>B516J$'981/PA$K02H>&:H>&)CF3$'3A; MA1;?&)6J@CD353511CF9 $'()(%P502C5@1 6>621 6 &:38CFH>B51 0/P%$'02H>&)H2&)CF356Nq q
p
r o n connected slow connection
k timely process one-way connection
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w#
LP2 o
LP1 n
local leader
q
p
r k
connected timely process
LP3 logical partition
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q n p
m
q∈aliveSetp
q∈aliveSetp
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lpartion
Hp =expTime
Ip
clock time
out-of-date Ip =(lpartion,expTime)
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