[Moosefs-users] Some Research Questions about MooseFS

[Zachary W. <zw...@ha...>]

Hello,
I am looking into MooseFS for one of my courses and I was hoping people
could answer a few questions for me.

Here are a few.  Some have sub-questions:

1. Does MooseFS save "deltas"?
Does it save a whole copy of a changed document or just the changes? Does it
have effects on the amount of data stored.

2. Does MooseFS synchronize all writes before returning?

3. Does Master Server round robin the requests to different chunk servers?
In deleting does Master or metalogger re-balance the distribution of data
across chunkservers?
What is the way the Master server assigns writes.
Does Master server move data to alleviate congestion? Can system auto move
chunks to spread reads out?
How does master direct requests?
What is the process of syncronizing data across chunks?  .

4. System Specifications - what is most important?
Processor - high GHz or high Cache memory?
Fast Ram?
Fast hard drive or big hard drive?

5. Error Correction - Who is responsible for proper checksum?
OS level or Checksum in meta logger?


Thank you for any help you can give me.

Zach