Re: [Moosefs-users] Fw: Re: chunkserver over several offices

[Michal B. <mic...@ge...>]

Hi!

The solution is very smart. In what environment have you done the tests?
What operating systems (for the physical machine and virtual machine). How
many files there were in MooseFS? How big was metadata file? How many
clients connected? Was the whole MooseFS quite busy? What about performance
of the master running in virtual machines? 


Kind regards
-Michal

-----Original Message-----
From: Krzysztof Janiszewski - ecenter sp. z o.o.
[mailto:k.j...@ec...] 
Sent: Wednesday, April 20, 2011 9:06 AM
To: 'Boyko Yordanov'
Cc: moo...@li...
Subject: Re: [Moosefs-users] Fw: Re: chunkserver over several offices

We have found failover solution for mfsserver. Our mfsserver is running on
VMWare virtual machine, which is configured in Fault tolerance mode. This
means that there are in fact two running virtual machines on two physical
hosts. Primary VM and secondary VM are doing the same CPU operations. When
primary VM fails, secondary takes over all tasks and everything is runnining
fine without interruption or data loss.

Best regards
Krzysztof Janiszewski
ecenter sp. z o.o.
--------------------------------------
Domeny, hosting, poczta wideo :: http://www.ecenter.pl ::


-----Original Message-----
From: Boyko Yordanov [mailto:b.y...@ex...] 
Sent: Wednesday, April 20, 2011 8:48 AM
To: Michal Borychowski
Cc: moo...@li...
Subject: Re: [Moosefs-users] Fw: Re: chunkserver over several offices

Hi,

Great news indeed, however, isn't it more important to implement reliable
failover solution and fix the single point of failure?

So far there is no real working failover solution, not even Thomas Hatch's
one. Its just that mfsmetalogger can't be trusted. 

Boyko
 
On Apr 20, 2011, at 8:18 AM, Michal Borychowski wrote:

>> I've got great news - we are going to introduce big improvements in
upcoming 1.6.21 version which also include "rack awaraness" :) This is a
feature lots of people were waiting for and I hope it will cater to your
needs.
> 


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----------------------------------------------------------------------------
--
Benefiting from Server Virtualization: Beyond Initial Workload 
Consolidation -- Increasing the use of server virtualization is a top
priority.Virtualization can reduce costs, simplify management, and improve 
application availability and disaster protection. Learn more about boosting 
the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev
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