Re: [MooseFS-Users] MooseFS 3.0.77 - Stable Release

[Piotr R. K. <pio...@mo...>]

Dear Steven,

thank you very much for your remark. I'd like to let you (and the rest of MooseFS-Users) know, that it is possible to "control" the version of MooseFS on moosefs.list repo sources file. It's described on MooseFS Download page <https://moosefs.com/download.html>. Let me quote some essentials:

There is also a possibility to use version number instead of "branch" if you want to decide exactly which version of MooseFS you want to upgrade to (e.g. 3.0.75-1):

http://ppa.moosefs.com/3.0.75/[rest of url]
If you want to use this option, please remember you need to manually change version number on each server to newer one before doing an upgrade.


So it is possible to set up your MooseFS repository in a "controlled way". In such case, just put in /etc/apt/sources.list.d/moosefs.list (or equivalent in other OS) the following entry:

deb http://ppa.moosefs.com/2.0.89/apt/ubuntu/trusty trusty main

Then, when your upgrade is planned, before starting it, just change it to:

deb http://ppa.moosefs.com/3.0.77/apt/ubuntu/trusty trusty main


This is a very good way to control MooseFS upgrades, since e.g. MooseFS Master Server upgrade usually has to be planned in production environments. The only con of this way is that you have to check manually if there's a newer version of MooseFS available.


Best regards, 

--

  <https://moosefs.com/>
Piotr Robert Konopelko
MooseFS Technical Support Engineer
e-mail : pio...@mo... <mailto:pio...@mo...>
www : https://moosefs.com <https://moosefs.com/>
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> On 08 Jun 2016, at 4:24 PM, Wilson, Steven M <st...@pu...> wrote:
> 
> That's great news... thanks!
> 
> One warning to other users:  Now that v. 3.0.x is the stable version, any package upgrade you perform will automatically pull in this version.  I was reminded of this today when I had to take down one of my MooseFS master servers to replace its UPS.  Since I was rebooting the master server, I decided to perform a full package upgrade on it (Ubuntu: apt-get dist-upgrade).  That, of course, upgraded all MooseFS components to 3.0.77 from 2.0.89.  But I have numerous MooseFS master servers still running 2.0.89 and the new mfsmount won't mount these older (2.0.x) MooseFS file systems.  I will probably mark as held the moosefs-client package on all my workstations until I have upgraded all MooseFS master servers to 3.0.x.  I hope this helps prevent an unexpected surprise to some other user!
> 
> Best regards,
> Steve
> 
> From: Krzysztof Kielak <krz...@mo...>
> Sent: Wednesday, June 8, 2016 6:02 AM
> To: moosefs-users
> Subject: [MooseFS-Users] MooseFS 3.0.77 - Stable Release
>  
> Dear MooseFS Users,
> 
> We are excited to announce that today, after extensive internal testing, we have released the stable version of MooseFS 3.0.77 (Pro and Community).
> 
> With MooseFS 3.0.77 release we introduce great new features:
>  - Storage Classes for better data distribution and redundancy management,
>  - Global locks support compatible with POSIX ioctl() and lockf() semantics and BSD compatible flock() semantics, 
>  - New I/O synchronisation mechanism between different mounts, for better handling concurrent I/O operations from different clients,
>  - ATMM (Automatic Temporary Maintenance Mode),
>  - Automatic File "sparsification".
> 
> We have already started working on version 4.0.x, that soon should be available in our current repository (development version). MooseFS 4.0.x, among other features, will allow to store data in Distributed RAID organisation.
> 
> Best Regards,
> Krzysztof Kielak
> Moosefs.com <http://moosefs.com/> | Director of Operations and Customer Support
> Mobile: +48 601 476 440
> 
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