[Gluster-users] [Gluster-devel] AFR arbiter volumes

[wodel youchi]

Hi,

I quite new on GlusterFS

Since the arbiter does not hold any data, how to choose it's size compared
to the other 2 bricks?

Regards

2015-09-09 7:26 GMT+01:00 Ravishankar N <ravishankar at redhat.com>:

>
>
> On 09/09/2015 08:36 AM, Nagaprasad Sathyanarayana wrote:
>
>> Thanks Ravi for nicely explaining this. A question on the following
>> section;
>>
>> "If 2 bricks are up and if one of them is the arbiter (i.e. the 3rd
>> brick) and it blames the other up brick, then all FOPS will fail with
>> ENOTCONN (Transport endpoint is not connected). If the arbiter doesn't
>> blame the other brick, FOPS will be allowed to proceed. 'Blaming' here is
>> w.r.t the values of AFR changelog extended attributes."
>>
>> Q: under what circumstances arbiter brick does/does not blame the other
>> brick?
>>
>
> Blaming is just the term used to indicate the state of AFR changelog
> xattrs. If a brick is down and a write/ modification FOP happens, then the
> bricks that are up 'blame' the one that is down using the these xattrs.
>
> Thanks,
> Ravi
>
>
>> Thanks
>> Naga
>>
>> On 09-Sep-2015, at 7:17 am, Ravishankar N <ravishankar at redhat.com> wrote:
>>>
>>> If 2 bricks are up and if one of them is the arbiter (i.e. the 3rd
>>> brick) and it blames the other up brick, then all FOPS will fail with
>>> ENOTCONN (Transport endpoint is not connected). If the arbiter doesn't
>>> blame the other brick, FOPS will be allowed to proceed. 'Blaming' here is
>>> w.r.t the values of AFR changelog extended attributes.
>>>
>>
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