[MooseFS-Users] High availability for master servers

[Arek W. <are...@in...>]

Hi,

I have a question about high availability for master servers in MooseFS Pro.

If two masters replicate changes in metadata, is this replication 
synchronous or asynchronous?
I mean the situation that a user created, deleted or renamed a file or 
appended data to a file just before the primary master for this 
operation goes down. The operation was reported to the user as finished.

Does this operation always survive master failure and is visible after 
another master takes over the responsibility of the failed master?
Can latest filesystem operations be lost?

How it is in case of chunk server failure? Can latest write operations 
be lost in this type of failure?

Thanks
Arek