[Gluster-users] 3.7.12 disaster

[Vijay Bellur]

On Thu, Jun 30, 2016 at 8:31 AM, Kaushal M <kshlmster at gmail.com> wrote:
> On Thu, Jun 30, 2016 at 5:47 PM, Kevin Lemonnier <lemonnierk at ulrar.net> wrote:
>>>
>>> Replicated the problem with 3.7.12 *and* 3.8.0 :(
>>>
>>
>> Yeah, I tried 3.8 when it came out too and I had to use the fuse mount point
>> to get the VMs to work. I just assumed proxmox wasn't compatible yet with 3.8 (since
>> the menu were a bit wonky anyway) but I guess it was the same bug.
>>
>
> I was able to reproduce the hang as well against 3.7.12.
>
> I tested by installing the pve-qemu-kvm package from the Proxmox
> repositories in a Debain Jessie container, as the default Debian qemu
> packages don't link with glusterfs.
> I used the 3.7.11 and 3.7.12 gluster repos from download.gluster.org.
>
> I tried to create an image on a simple 1 brick gluster volume using qemu-img.
> The qemu-img command succeeded against a 3.7.11 volume, but hung
> against 3.7.12 to finally timeout and fail after ping-timeout.
>
> We can at-least be happy that this issue isn't due to any bugs in AFR.
>
> I was testing this with Raghavendra, and we are wondering if this is
> probably a result of changes to libglusterfs and libgfapi that have
> been introduced in 3.7.12 and 3.8.
> Any app linking with libgfapi also needs to link with libglusterfs.
> While we have some sort of versioning for libgfapi, we don't have any
> for libglusterfs.
> This has caused problems before (I cannot find any links for this
> right now though).
>

Did any function signatures change between 3.7.11 and 3.7.12?

-Vijay