[MooseFS-Users] why master can't server any request at every o'clock?

[彭智希 <pen...@16...>]

dear all:
   I use the version of 2.0 and i found that the master can't server any request at every o'clock. It gets righter 3-4 minutes later. I do it according to the solution of https://sourceforge.net/p/moosefs/mailman/message/34310363/, but the result is not satisfied. There is 64G memory total. So i think the memory is enough.
The file of metadata.mfs.back is about 4.3G. It is able to or not too big to image the metadate to disk for the child process? I hope any body could give me some hints!
Thanks!!