search for: file_add_1

...and B are load balance and have same import. file changes may happend in machin A or machine B. So each time, A first get the changes from machine B, then push the changes to machine B. Or the reverse order. my question is: if now machine B delete a file (file_delete_1.txt) and A add a file (file_add_1.txt) when A get the changes from machine B, it find that both file "file_delete_1.txt" and "file_add_1.txt" are exist in machine A and NOT in machine B, so it think machine B formerly have these two file and now they were all deleted!!!!! so machine A also delete the files &qu...