James,
You can do that, but you will have to hand craft the volume file. volgen looks
for even numbers as you have already noticed.
With hand crafting of volume files, you can even have a replicate distribute ..
so e.g. 2 copies of file, and each replicate node of the graph can have a
differing number of distribute servers under it.
something like this can be done to have a replica count of two with 5
servers...
| R1 |----------R1D1
mount--- |-----------|----------R1D2
|
| R2 |-----------R2D1
|-----------|-----------R2D2
|-----------R2D3
The design of translators is so modular that they can be used in any
combination. This however used to lead to confusion and hence we developed
volgen that produced easy to use and default best-fit configuration.
>From the perspective of "official" support, we typically only support configs
>that volgen produces. For other configs, we do fix the bugs, but how fast
>depends on the config and translator seeing the bug.
Let me know if you have more questions about this.
Regards,
Tejas Bhise.
----- Original Message -----
From: "James Burnash" <[email protected]>
To: "Gluster General Discussion List" <[email protected]>
Sent: Wednesday, July 28, 2010 6:41:02 PM
Subject: Re: [Gluster-users] Mirror volumes with odd number of servers
Carl - could you possibly provide an example of a configuration using an odd
number of servers? glusterfs-volgen is unhappy when you don't give an even
number.
Thanks!
James Burnash, Unix Engineering
T. 201-239-2248
[email protected] | www.knight.com
545 Washington Ave. | Jersey City, NJ
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Craig Carl
Sent: Wednesday, July 28, 2010 12:16 AM
To: Gluster General Discussion List
Subject: Re: [Gluster-users] Mirror volumes with odd number of servers
Brock -
It is completely possible using Gluster File System. We haven't exposed that
option via the Gluster Storage Platform GUI yet.
Craig
--
Craig Carl
Gluster, Inc.
Cell - (408) 829-9953 (California, USA)
Gtalk - [email protected]
From: "brock brown" <[email protected]>
To: [email protected]
Sent: Tuesday, July 27, 2010 12:51:19 PM
Subject: [Gluster-users] Mirror volumes with odd number of servers
All the documentation refers to using multiples of 2 when setting up mirrored
volumes. Also the Gluster Storage Platform will not allow it. Is this
impossible and if so why?
Thanks,
Brock
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