Re: [MooseFS-Users] High disk usage inside vm makes moosefs read only

[Markus K. <mar...@tu...>]

On Thursday 12 January 2017 18:38:02 Marcin wrote:
> W dniu 2017-01-12 18:16, Aleksander Wieliczko napisał(a):
> > Hi,
> > Would you be so kind and tell us something more about your „two node”
> > cluster configuration.
> > I mean what kind of CPU is on mfsmaster and chunkserver?
> > Sepicfy amount of RAM on each server?
> > How many hard disk you have inside you chunkserver and how fast they 
> > are?
> > What is you LAN configuration: NIC devices, ping size between
> > chunkserver, master and client.
> > 
> > By the way I would like to add that minimum configration is:
> > 1x MooseFS master server
> > 3x MooseFS chunkserver.
> 
> 
> Cześć Aleksander,
> node with mfsmaster & chunkserver:
> CPU - E5440 - 8 cores, 2.83GHz
> $ free -m
>                total        used        free      shared  buff/cache   
> available
> Mem:           3946        2497         136          64        1312      
>    1067
> Swap:          4091        1322        2769
> 
> second node with chunkserver:
> CPU -  X3230 - 4 cores, 2.66GHz
> $ free -m
>                total        used        free      shared  buff/cache   
> available
> Mem:           1998         426          81          36        1490      
>    1345
> Swap:          2043        1436         607
> 
> 
> Both nodes uses 7.2k HDD, nodes are connected using 1GB ethernet. This 
> is local LAN, ping is below 0.2 ms.
> Problem with data access is on second node.
> I'm going to add more chunkservers but I have to migrate services from 
> phisical machines to VM. I can't do it because I'm observing stability 
> problem...
> 
> Marcin

It seams your are very short with RAM.
You can find the requirements in this document:
https://moosefs.com/Content/Downloads/moosefs-3-0-users-manual.pdf


regards,
Markus Köberl
-- 
Markus Koeberl
Graz University of Technology
Signal Processing and Speech Communication Laboratory
E-mail: mar...@tu...