[Moosefs-users] mfsmaster performance and hardware

[Robert S. <rsa...@ne...>]

We have been spending a lot of time trying to get MooseFS stable and 
optimized.

Something I have noticed is that mfsmaster seems to be a bottleneck in 
our setup. What I also noticed is that mfsmaster is single threaded. 
 From reading the source code it seems to use a very interesting polling 
loop to handle all communications and actions.

So a question: Is there anything on the roadmap to make mfsmaster 
multithreaded?

It also seems that the performance of MooseFS is very dependent on the 
performance of mfsmaster. If the machine running mfsmaster is slow or is 
busy then it can slow everything down significantly or even cause 
instability in the file system.

This also implies that if you want to buy a dedicated machine for 
mfsmaster that you have to buy the fastest possible CPU and as much RAM 
as you need. Local disk space and multiple CPUs and cores are not 
important. Is this correct? What would the recommendation be for an 
optimal machine to run mfsmaster?

Robert