how to distinguish local add and remote delete?

[Huang, YongHui]

hi,all, I have a question about how to distinguish local add and remote delete?
 
hope to get answer from any of you, thank you in advanced.
 
how to distinguish local add and remote delete:
Local is machine A, Rsync client, remote is machine B, Rsync server.
 
In our application, A 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 "file_delete_1.txt" and "file_add_1.txt".
 
How to avoid this situation?
 
If Rsyanc can not handle this situation, is their any other solution for it ?
 
thank you very much.
 
 
 
 
Best Regards
---------------------------------------------
yhhuang »ÆÓ»Ô
Server Dept.
TeleNav Shanghai Inc.
Tel:(21)6337 2220 ext 8651
www.telenav.com <http://www.telenav.com/> 
 
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