下载时候,只下载T global >= L global的
上传的时候如果T Global < L Global ,则 conflict
只上传mark = true的.同时增加Global Verson. 上传插入的时候只插入 TV>LV的
A insert 100
a100-0
AGlobal = 0
A upload to B
a100-0
b100-0
AGlobal = 1
BGlobal = 1
A delete 99
a1-0
AGlobal = 1
A upload to B
a1-0
b1-0
AGlobal = 2
BGlobal = 2
B change 1 and insert 100
b1-1 b100-0
Global = 2
B upload to A
a1-1 a100-0
b1-1 b100-0
Global = 3
C download from A
a1-1 a100-0
c1-1 c100-0
C change 1
c1-1 c99-0 c1-1
B change 1 but not the one of C
b1-1 b99-0 b1-1
B upload to A
a1-1 a99-0 a1-1(b)
b1-1 b99-0 b1-1
C upload to A
a1-1 a98-0 a1-1(b) a1-1(c)
c1-1 c99-0 c1-1
C change 1 , which is the one of B changed
c1-1 c98-0 c1-1 c1-1
C upload to A
a1-1 a98-0 a1-1(b) a1-1(c)
c1-1 c98-0 c1-1(b) c1-1 (conflict!)
一些思考.最后没有结果的结束了.