Gluster users - Feb 2014 - add-brick and fix-layout takes some VMs offline

Hi there,

We have a distributed-replicated volume hosting KVM guests running 
Gluster 3.4.1.
We've grown from 1 x 2 -> 2 x 2 -> 3 x 2,but each time we've added
nodes
or run a fix layout,
some of our  guests go offline (or worse with error=continue they 
silently error).
After the last addition we didn't even run fix-layout as the guests are 
becoming increasingly important.

Those guests are currently are using a combination of FUSE and libgfapi.
Is there a setting or group of settings we should use to ameliorate this 
problem?
Is FUSE or libgfapi more forgiving when add-brick or fix-layout is run?

Any info is greatly appreciated.
Thanks.

On 02/13/2014 08:52 PM, Nicholas Majeran wrote:
> Hi there,
>
> We have a distributed-replicated volume hosting KVM guests running
> Gluster 3.4.1.
> We've grown from 1 x 2 -> 2 x 2 -> 3 x 2,but each time we've
added nodes
> or run a fix layout,
> some of our  guests go offline (or worse with error=continue they
> silently error).
> After the last addition we didn't even run fix-layout as the guests are
> becoming increasingly important.
Would it be possible to share the client log files and your volume 
configuration?
>
> Those guests are currently are using a combination of FUSE and libgfapi.
> Is there a setting or group of settings we should use to ameliorate this
> problem?
> Is FUSE or libgfapi more forgiving when add-brick or fix-layout is run?
>
The behavior of FUSE or libgfapi should mostly be the same with either 
add-brick or fix-layout.

Thanks,
Vijay

On 02/13/2014 09:22 AM, Nicholas Majeran wrote:
> Hi there,
>
> We have a distributed-replicated volume hosting KVM guests running 
> Gluster 3.4.1.
> We've grown from 1 x 2 -> 2 x 2 -> 3 x 2,but each time we've
added
> nodes or run a fix layout,
> some of our  guests go offline (or worse with error=continue they 
> silently error).
> After the last addition we didn't even run fix-layout as the guests 
> are becoming increasingly important.
>
> Those guests are currently are using a combination of FUSE and libgfapi.
> Is there a setting or group of settings we should use to ameliorate 
> this problem?
> Is FUSE or libgfapi more forgiving when add-brick or fix-layout is run?
>
> Any info is greatly appreciated.
> Thanks.
>
>
Hi,
Does anyone have any ideas on the above?

Thanks.