[Gluster-users] error when using mount point as a brick directory.

[Juan José Pavlik Salles]

Great example!!!

2014-09-12 11:41 GMT-03:00 Claudio Kuenzler <ck at claudiokuenzler.com>:

> Thanks for the hint about force", I didn't try that.
> On the other side I am thankful for the error/warning which prevented me
> to create the volume because I just thought of a scenario which could
> result in problems.
>
> Imagine you have a LV you want to use for the gluster volume. Now you
> mount this LV to /mnt/gluster1. You do this on the other host(s), too and
> you create the gluster volume with /mnt/gluster1 as brick.
> By mistake you forget to add the mount entry to fstab so the next time you
> reboot server1, /mnt/gluster1 will be there (because it's the mountpoint)
> but the data is gone (because the LV is not mounted).
> I don't know how gluster would handle that but it's actually easy to try
> it out :)
>
> So using a subfolder within the mountpoint makes sense, because that
> subfolder will not exist when the mount of the LV didn't happen.
> On Sep 12, 2014 4:16 PM, "Juan José Pavlik Salles" <jjpavlik at gmail.com>
> wrote:
>
>> Maybe it's not a warning, but you can use "force" to avoid that behaviour
>> so it's not that you can't create the volume. Anyway, it's a good practice
>> to create a subdirectory as far as I've read.
>>
>> 2014-09-12 11:02 GMT-03:00 Claudio Kuenzler <ck at claudiokuenzler.com>:
>>
>>> Hi
>>>
>>> On Fri, Sep 12, 2014 at 3:00 PM, Juan José Pavlik Salles <
>>> jjpavlik at gmail.com> wrote:
>>>
>>>> Hi Paul, that's is more a warning than an error. This advice helps you
>>>> avoid situations like this:
>>>>
>>>
>>> Not so sure if it's "only a warning". The volume cannot be created as
>>> long as the fs mountpoint is directly used as brick in "gluster volume
>>> create".
>>>
>>> I wrote a post about that last month:
>>> http://www.claudiokuenzler.com/blog/499/glusterfs-bricks-should-be-subfolder-of-mountpoint
>>>
>>> But as long as it is documented I don't think it's a real issue to
>>> follow that rule.
>>>
>>
>>
>>
>> --
>> Pavlik Salles Juan José
>> Blog - http://viviendolared.blogspot.com
>>
>


-- 
Pavlik Salles Juan José
Blog - http://viviendolared.blogspot.com
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