Re: 3.7.12 disaster

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On 06/30/2016 11:18 AM, Vijay Bellur wrote:
> On Thu, Jun 30, 2016 at 8:31 AM, Kaushal M <kshlmster@xxxxxxxxx> wrote:
>> On Thu, Jun 30, 2016 at 5:47 PM, Kevin Lemonnier <lemonnierk@xxxxxxxxx> 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?

In gfapi? No. And (as I'm sure you're aware) they're all versioned, so
things that linked with the old version-signature continue to do so.

I don't know about libglusterfs.

--

Kaleb


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