[MooseFS-Users] Some question about MFS read and write

[Winters.H. <hua...@qq...>]

Dear MFS experts,
 
 I’m using the MFS 3.0.81(CentOS 6u3) for some test and I have one questions about the concurrent read & write.
 
 In the user manual, I remember that all read operations are concurrent and write is also but if over on a same file fragment will be sequential, controlled by MFS server.
 
 
 
 So, if I have several Clients, like Client A, Client B, there are possible to upload same folders(folder M) to MFS Cache both from Client A and Client B at same time.
 
 I think, this write operation will happen on same file fragment and which should be sequential and synchronized by MFS server, right ?
 
 Also, at same time, there’s Client C and Client D, which possibly want to read the same folder M at same time.
 
 For this case, how the MFS works to make sure both read & write work as expected ? Or Should I do some control in the Client side ?
 


 
Appreciate for your helps and thanks.
 
Regards,
 
Xinghua Gao