Hi all,
Recently I am redesigning our website architecture.
I have two servers located at Location_A and Location_B serving the same
http://www.ourexample.com and loadbalancing via DNS round-robin.Location_A
and Location_B are connected via Internet(NOT in A LAN).
The mysql database can be "synchronized" via master-master replication as
far as we have seen,but we are now faced with file synchronization problem(I
mean the files uploaded by users from Location_A and Location_B cannot see
each other  "immediately".)
Can anybody give me some advice on such case?
1.NFS over Internet for file sharing
2.sshfs
3.inotify(our system's kernel does not support this and we donot want to
risk upgrading our kernel as well)
4.drbd in active-active mode
5 or any other solutions

Any suggestions will be welcomed.

Thank you in advance.

Yours

XuFeng




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