Re: [CentOS] Large file system idea

[Steve Thompson]

On Sun, 18 May 2014, Andrew Holway wrote:

> Have you looked at parallel filesystems such as Lustre and fhgfs?

I have not looked at Lustre, as I have heard many negative things about it 
(including Oracle ownership). The only business using Lustre where I know 
the admins has had a lot of trouble with it. No redundancy.

Fhgfs looks interesting, and I am planning on looking at it, but have
not yet done so.

MooseFS and GlusterFS have both been evaluated, and were too slow. In the
case of GlusterFS, wy too slow.

Steve
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Re: [CentOS] Sorry

[Chris Weisiger]

I'm posting from my phone so I can't bottom post, but I believe this thread has 
gone on way to long. Lets drop it and get back to what this mailing list is all 
about. I would rather read posts about the same technical things over and over 
again that have been asked hundreds of times. But when questions like that get 
asked, alot of times people reply by saying "search the archives" or have you 
searched google yet. Where as the top/bottom posting question I believe should 
be answered with the search the archives or search google answer. 

This is just my 2 cents. Now back to your regularly scheduled questions.

-Original Message-
From: "Dave Stevens" 
Sent: ‎5/‎17/‎2014 7:07 PM
To: "CentOS mailing list" ; "Alexander Dalloz" 

Subject: Re: [CentOS] Sorry

Quoting Alexander Dalloz :

> Am 17.05.2014 23:22, schrieb Always Learning:
>>
>> Top posting ALWAYS makes sense when the poster has included nearly 200
>> lines of redundant and time-wasting waffle from previous posters.
>
> False argument.
>

+1

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[CentOS] build system for cutting edge software

[Gergely Buday]

Hi,

I use centos as it is stable and provides all the software that is
needed for everyday use.

However, sometimes I would like to use fresh software that is not
available as a package. Compiling from source is indeed an option but
because centos uses oldish sources not only the sought package should
be built but a lot of other packages.

An idea is to build it in a directory, as much independent as it is
possible from the installed libraries on the centos installation. Is
there an automated build system for such an endeavour?

- Gergely
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Re: [CentOS] build system for cutting edge software

[Robert Moskowitz]

On 05/18/2014 12:10 PM, Gergely Buday wrote:
> Hi,
>
> I use centos as it is stable and provides all the software that is
> needed for everyday use.
>
> However, sometimes I would like to use fresh software that is not
> available as a package. Compiling from source is indeed an option but
> because centos uses oldish sources not only the sought package should
> be built but a lot of other packages.
>
> An idea is to build it in a directory, as much independent as it is
> possible from the installed libraries on the centos installation. Is
> there an automated build system for such an endeavour?

Run Fedora as a VM?


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Re: [CentOS] Sorry

[Leon Fauster]

Am 18.05.2014 um 17:51 schrieb Chris Weisiger :
> I'm posting from my phone so I can't bottom post, 

I can say that the usability of the mail application for such a goal 
doesn't support it in the way to accomplishing it in an efficient manner,
but you can do it - it is not a nature law that is preventing you in doing 
it.


Further more - the majority of bottom postings use (unconsciously) the design 
law of nearness, means the answer implies a context and such text context 
(e.g. inline) is important for the comprehension of the discussion. 

IMO most facts shows us that "bottom posting style" is on the long term 
a win for all actors.


--
LF

 





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[CentOS] Is it legal ?

[ngeorgop]

Please tell me your opinion.
How legal is to use, redistribute, include in installation cds, repos etc,
rpms/srpms like this:
http://pull-mirror.yandex.net/fedora/russianfedora/russianfedora/nonfree/fedora/updates/19/SRPMS/chromium-pepper-flash-13.0.0.206-1.fc19.R.src.rpm



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Re: [CentOS] Is it legal ?

[Stephen Harris]

On Sun, May 18, 2014 at 02:00:32PM -0700, ngeorgop wrote:
> Please tell me your opinion.
> How legal is to use, redistribute, include in installation cds, repos etc,

This is not a legal mailing list.  Any opinion represented is not worth
the electrons used to transmit it.

If you are concerned about licencing and compliance then consult a lawyer.

-- 

rgds
Stephen
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Re: [CentOS] Is it legal ?

[Digimer]

On 18/05/14 05:21 PM, Stephen Harris wrote:
> On Sun, May 18, 2014 at 02:00:32PM -0700, ngeorgop wrote:
>> Please tell me your opinion.
>> How legal is to use, redistribute, include in installation cds, repos etc,
>
> This is not a legal mailing list.  Any opinion represented is not worth
> the electrons used to transmit it.
>
> If you are concerned about licencing and compliance then consult a lawyer.

Stephen is right, you can only trust the legal advice of your own 
representative.

-- 
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?
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Re: [CentOS] Large file system idea

[Ted Miller]

On 05/18/2014 11:47 AM, Steve Thompson wrote:
> MooseFS and GlusterFS have both been evaluated, and were too slow. In the
> case of GlusterFS, wy too slow.

How recently have you looked at Gluster?  It has seen some significant 
progress, though small files are still its weakest area.  I believe that 
some use-cases have found that NFS access is faster for small files.

Ted Miller
Elkhart, IN


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Re: [CentOS] CENTOS and GlusterFS

[Ted Miller]

On 05/15/2014 12:54 PM, Alessandro Baggi wrote:
> Hi list,
> I'm planning to setup a two-node "cluster" with file replication and samba.

A caution--a two-node replicated cluster is a poor choice.  If something 
gets into a split-brain condition (easier to happen than it should be) 
there are only two different nodes, and so there can be no voting.  Using a 
three-node replicated cluster is the minimum that can be recommended at 
this point.  (You don't want to get into a split-brain condition, because 
it will give you a headache that makes it feel like your brain is splitting.)

Gluster is beginning work on a different way of writing the replicated 
data, that will be much less likely to result in split-brain,

> I've used drbd in the  past with success, but now there isn't drbd on
> the official repo but only from elrepo. I want follow centos Line and
> than switch to GlusterFS.
>
> Said that, I'm new to GlusterFS.
>
> I have two hosts with a 2tb disk space for replica.
> I've ridden that glusterfs is not compatible with smb/cifs/nfs and that
> for this purpose I must mount locally the volume and share it with samba
> and the hosts must act as client and server at the same time.

I'm not sure what you're trying to do here, but nfs sharing is built into 
gluster, and turned on by default.  What Operating System will be using the 
gluster volume?

> It is possibile shares a mounted disk on /data with samba, and apply a
> replica volume on /data without using glusterfs export?
>
> Example:
> [Host1]  [Host2]
> /data -> smb /data -> smb
> gluster_replica<>gluster_replica

Be sure to map the gluster file system to /data, NOT the underlying bricks. 
  Mapping the bricks is a common newbie mistake.  Gluster does NOT 
replicate changes to the individual bricks.  Only changes to the mounted 
glusterfs volume itself are replicated reliably.  Be sure that when you 
type "mount", the line that describes /data looks like:
localhost:data   /data  glusterfs
It HAS TO say glusterfs in order to be shared.

There will be a separate line in the output of "mount" that will say 
something like

/dev/sda2   /brick/data  xfs

That is the brick, and your samba share must NOT point to /brick/data.

Ted Miller


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Re: [CentOS] build system for cutting edge software

[Matthew Miller]

On Sun, May 18, 2014 at 06:10:57PM +0200, Gergely Buday wrote:
> However, sometimes I would like to use fresh software that is not
> available as a package. Compiling from source is indeed an option but
> because centos uses oldish sources not only the sought package should
> be built but a lot of other packages.
> An idea is to build it in a directory, as much independent as it is
> possible from the installed libraries on the centos installation. Is
> there an automated build system for such an endeavour?

You might be interested in Software Collections. See
. This is basically a system for
packaging RPMs that instal in /opt instead of into the distribution proper.

And although I haven't done this, I believe that they are integrated with
Coprs (), which is a buildsystem for making
and hosting your own repositories. This will build for Fedora or RHEL/CentOS
(or both at once).

-- 
Matthew Miller   mat...@mattdm.org  
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Re: [CentOS] build system for cutting edge software

[Matthew Miller]

On Sun, May 18, 2014 at 01:30:24PM -0400, Robert Moskowitz wrote:
> > An idea is to build it in a directory, as much independent as it is
> > possible from the installed libraries on the centos installation. Is
> > there an automated build system for such an endeavour?
> Run Fedora as a VM?

Or, run Docker with a Fedora container.

Add EPEL, and then:

  sudo yum install docker-io
  sudo service docker start
  sudo docker run -i -t fedora /bin/bash

There are some already-existing docker recipies built automatically -- see
the list at   and then
try, for example:

   docker run -d -p 80:80 fedora/apache

and presto, apache running on port 80.


-- 
Matthew Miller   mat...@mattdm.org  
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Re: [CentOS] Large file system idea

[Les Mikesell]

On Sun, May 18, 2014 at 10:47 AM, Steve Thompson  wrote:
> On Sun, 18 May 2014, Andrew Holway wrote:
>
> MooseFS and GlusterFS have both been evaluated, and were too slow. In the
> case of GlusterFS, wy too slow.
>

Do you really need filesystem semantics or would ceph's object store work?

-- 
   Les Mikesell
lesmikes...@gmail.com
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Re: [CentOS] Centos backup tools

[Chris]

On 05/16/2014 04:58 PM, Fred Smith wrote:
> I know there's rsync, which may be a good solution.

Another solution could be rsync with zfs or btrfs.

-- 
Gruß,
Christian
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Re: [CentOS] Samba4 questions

[Chris]

On 04/23/2014 12:43 AM, John R Pierce wrote:
> I'm not sure win7/8 professional are happy about joining a NT4 Domain, 
> at least not without a bunch of tinkering with security policies.

A registry patch is required, but it's working.

-- 
Gruß,
Christian
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Re: [CentOS] Samba4 questions

[Arun Khan]

On Wed, Apr 23, 2014 at 1:25 AM, Les Mikesell  wrote:
> SME server used to be pretty good at that sort of thing (small
> business server).  You could just add users and put them in groups
> with the web interface and set up file shares by group.  The ClearOS
> version might be more up to date, though.The old lanman
> authentication wouldn't be as secure as AD, though.
>

+1 to Les's comments.

@ OP  - if you are not averse to switching distributions, then give
Zentyal (www.zentyal.org) a try; it has Samba 4.1.5 IIRC and based on
Ubuntu 12.04.3 LTS.

The Zentyal folks have done a good job on the Web UI so user/group and
file share management is fairly straightforward.

Recently, I migrated a 50 node setup, a mix of CentOS desktops, Linux
Storage (Debian), Windows 7 Pro, OS X, from a openLDAP+Samba3 PDC
setup to Samba4 AD/DC.

Much as this group has helped you, you will have to do some homework
(reading + experimentation) and bring yourself up to speed on Samba4.
There is a lot of documentation  and
wiki.samba.org.

-- Arun Khan
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Re: [CentOS] Sorry

[John R Pierce]

On 5/18/2014 8:51 AM, Chris Weisiger wrote:
> I'm posting from my phone so I can't bottom post

then shut up til you can get on a proper computer that actually knows 
how to email.

noone cares that you're crippling yourself by using a telephone



-- 
john r pierce  37N 122W
somewhere on the middle of the left coast

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