[Gluster-users] Add single server

[Pranith Kumar Karampuri]

On Sun, Apr 30, 2017 at 2:04 PM, Gandalf Corvotempesta <
gandalf.corvotempesta at gmail.com> wrote:

> 2017-04-30 10:13 GMT+02:00  <lemonnierk at ulrar.net>:
> > I was (I believe) the first one to run into the bug, it happens and I
> knew it
> > was a risk when installing gluster.
>
> I know.
>
> > But since then I didn't see any warnings anywhere except here, I agree
> > with you that it should be mentionned in big bold letters on the site.
> >
> > Might even be worth adding a warning directly on the cli when trying to
> > add bricks if sharding is enabled, to make sure no-one will destroy a
> > whole cluster for a known bug.
>
> Exactly. This is making me angry.
>
> Even $BigVendor usually release a security bulletin, in example:
> https://support.citrix.com/article/CTX214305
> https://support.citrix.com/article/CTX214768
>
> Immediatly after discovering that bug, a report was made available (on
> official website, not on a mailinglist)
> telling users which operations should be avoided until a fix is made.
>
> Gluster don't. There is a huge bug that isn't referenced in official docs.
>
> Is not acting like a customer, i'm just asking for some transparancy.
>
> Even if this is an open source project, nobody should play with user data.
> This bug (or, better, these bugs) are know from time, an there is NO WORDS
> in any official docs nor the web site.
>
> is not a rare bug, it *always* loose data when used with VMs and
> sharding during a rebalance.
> this feature should be disabled or users should be warned somewhere on
> web site and not forcing
> all of them to look through ML archives.
>
> Anyway, i've just asked for a feature like simplifying the add-brick
> process. Gluster devs are free to ignore it
> but if they are interest in something similiar, i'm willing to provide
> more info (if I can, i'm not a developer)
>
> I really love gluster, lack of metadata server is awesome, files
> stored "verbatim" with no alteration is amazing (almost all SDS alter
> file when stored on disks)
> but being forced to add bricks in a multiple of replica count is
> making gluster very expesive (yes, there is a workaround with multiple
> steps, but this is prone to
> error, thus i'm asking to simplify this phase allowing users to add a
> single brick to a replica X volume with automatic member replacement
> and rebalance)
>

IMHO It is difficult to implement what you are asking for without metadata
server which stores where each replica is stored.


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-- 
Pranith
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