CentOS - Sep 2014 - Is it safe to go from CentOS6.5 to CentOS 7 at this time

I am looking for opinions and personal experience on CentOS7 for both 
grid and virtualized web environments.
I am currently on CentOS6.5 in a production environment.

I am about to add about 50 more servers to my grid and am trying to 
identify the advantages and disadvantages of going to CentOS7.
The good part is, that I have some tolerance for backing out and 
installing CentOS6.5 if 7 does not work out.

I read the comments about what CentOS7 brings but want to make sure that 
I am not introducing undue risk. Not seen a lot of issues with it.

I also have a small private cloud (VMWare esxi) and wanted to know if 
anyone was using  CentOS7 there.

The basic question: Should I be holding off a little longer on going to 
CentOS7 in production?

Thanks

Dan

*Personally*, I would say no. I would certainly be starting to use it in 
the lab and non-critical roles, but I will be waiting until ~7.2 before 
I consider using it in production.

This is mainly based on the sheer amount of change that happened in EL7. 
It's going to take time for bugs to get squashed and for users to get 
used to the changes.

Digimer

On 29/09/14 09:56 AM, Dan Hyatt wrote:
> I am looking for opinions and personal experience on CentOS7 for both
> grid and virtualized web environments.
> I am currently on CentOS6.5 in a production environment.
>
> I am about to add about 50 more servers to my grid and am trying to
> identify the advantages and disadvantages of going to CentOS7.
> The good part is, that I have some tolerance for backing out and
> installing CentOS6.5 if 7 does not work out.
>
> I read the comments about what CentOS7 brings but want to make sure that
> I am not introducing undue risk. Not seen a lot of issues with it.
>
> I also have a small private cloud (VMWare esxi) and wanted to know if
> anyone was using  CentOS7 there.
>
> The basic question: Should I be holding off a little longer on going to
> CentOS7 in production?
>
> Thanks
>
> Dan
>
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos

-- 
Digimer
Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without 
access to education?

On Mon, Sep 29, 2014 at 8:56 AM, Dan Hyatt <dhyatt at dsgmail.wustl.edu>
wrote:
> I am looking for opinions and personal experience on CentOS7 for both grid
> and virtualized web environments.
> I am currently on CentOS6.5 in a production environment.
>
> I am about to add about 50 more servers to my grid and am trying to
identify
> the advantages and disadvantages of going to CentOS7.
> The good part is, that I have some tolerance for backing out and installing
> CentOS6.5 if 7 does not work out.
>
> I read the comments about what CentOS7 brings but want to make sure that I
> am not introducing undue risk. Not seen a lot of issues with it.
>
> I also have a small private cloud (VMWare esxi) and wanted to know if
anyone
> was using  CentOS7 there.
>
> The basic question: Should I be holding off a little longer on going to
> CentOS7 in production?
>
I don't think you'll get a definitive answer for that.  There are
installation and operational differences that you'll have to learn
eventually, and probably the sooner the better.  Most application
environments won't know the difference.  If yours doesn't, I'd go
with
7 and perhaps avoid having to re-install in the hardware's lifetime
and take advantage of the newer kernel and default xfs filesystem.
There's always the possibility of some unexpected version difference
but you'll have to deal with that sooner or later anyway.   I have a
few instances running under ESXi with no surprises.  And I've seen a
few unexpected hangs on one hardware instance but at this point don't
know whether to blame the hardware or software.

-- 
   Les Mikesell
     lesmikesell at gmail.com

Dan Hyatt wrote:
> I am looking for opinions and personal experience on CentOS7 for both
> grid and virtualized web environments.
> I am currently on CentOS6.5 in a production environment.
>
> I am about to add about 50 more servers to my grid and am trying to
> identify the advantages and disadvantages of going to CentOS7.
> The good part is, that I have some tolerance for backing out and
> installing CentOS6.5 if 7 does not work out.
>
> I read the comments about what CentOS7 brings but want to make sure that
> I am not introducing undue risk. Not seen a lot of issues with it.
>
> I also have a small private cloud (VMWare esxi) and wanted to know if
> anyone was using  CentOS7 there.
>
> The basic question: Should I be holding off a little longer on going to
> CentOS7 in production?
>
On the one hand, we're starting to roll it out... *only* on new servers,
and the servers we're rolling it out on are *only* fileservers - a couple
attached to RAID boxes, and the other two will be attached to RAIDs, but
server home directories.

I feel that I'd stay with 6.x unless there's a must-have feature. Right
now, I'm playing with stuff on those servers - for one, NetworkMangler is
*extremely* noisy, and trying to find *full* examples of its configuration
file... I've only found *tiny* bits and pieces. I think I got it to log
only errors, but the startup was *noisy*, and the documentation leaves
something to be desired.

Oh, and it enables wireless. On a server. With no wifi. And I don't see
any ifcfg-'s to set them to *off*.

I really don't like this "we'll do everything" attitude, esp.
when
"everything" is intended for users of laptops....

And the install, as I think I posted last week, was nasty - if I want
anything other than it's "let me partition *and* throw LVM on
top", it
goes to choose disks... and selects *ALL* by default.

So there's a bunch of stuff I don't like, and will wait to see if they
fix
it.

       mark
        mark