Re: [MooseFS-Users] Mixing OS version

[Agata Kruszona-Z. <ch...@mo...>]

Hi,

First, I would like to invite you to github. Most of the conversation 
moved there a long time ago. Here is our github discussions page:
https://github.com/moosefs/moosefs/discussions

To answer your question: it's absolutely not a problem to mix and match 
OSes on machines with MFS components. In our lab we have a mix of 
Ubuntu, Centos and Debian with a FreeBSD machine on top ;) Everything 
goes, as long as it can run mfs master or mfs chunkserver. The only 
thing to remember is, if you also want to upgrade mfs itself while you 
are upgrading your oses, this should start with your metalogger, then 
master, then chunkservers, then client processes. In other words, you 
shouldn't try to connect a newer chunkserver or client to an older master.

Regards,
Agata

W dniu 17.11.2021 o 20:31, WK pisze:
> We have a very old CentOS7 based MFS system
> 
> 1 Master
> 
> 1 Metalogger/backup Master
> 
> 7 chunkservers.
> 
> The MFS software is reasonably up to date they are all at least 3.0.115
> 
> The hardware was OLD when we put the system in place, as we reused older 
> servers we were replacing.
> 
> So now that equipment is REALLY old and we are beginning the process of 
> updating them.
> 
> We would like to use Ubuntu20 for the OS on the newer hardware.
> 
> Our initial plan would be to introduce a new U20 chunkserver, get it 
> replicated up and then remove one of the older C7 chunkservers.
> 
> then wash, rinse repeat for the others for a few weeks until everybody 
> is caught up.
> 
> Is there a problem mixing Cent7 and U20 systems on the same network in 
> that fashion?
> 
> Can we start with the chunkservers or should we immediately replace the 
> Master with U20 and then start replacing the chunkservers?
> 
> sincerely,
> 
> -wk
> 
> 
> 
> 
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-- 
--
Agata Kruszona-Zawadzka
MooseFS Team