[Gluster-users] File Corruption with shards - 100% reproducable

Krutika Dhananjay
Fri, 06 Nov 2015 05:35:27 -0000

CC'ing Raghavendra Talur, who is managing the 3.7.6 release.

-Krutika

----- Original Message -----

> From: "Lindsay Mathieson" <lindsay.mathieson at gmail.com>
> To: "Krutika Dhananjay" <kdhananj at redhat.com>
> Cc: "gluster-users" <gluster-users at gluster.org>
> Sent: Thursday, November 5, 2015 7:17:35 PM
> Subject: Re: [Gluster-users] File Corruption with shards - 100%
reproducable

> On 5 November 2015 at 21:55, Krutika Dhananjay < kdhananj at redhat.com
> wrote:

> > Although I do not have experience with VM live migration, IIUC, it is
got
> > to
> > do with a different server (and as a result a new glusterfs client
process)
> > taking over the operations and mgmt of the VM.
>

> Thats sounds very plausible

> > If this is a correct assumption, then I think this could be the result
of
> > the
> > same caching bug that I talked about sometime back in 3.7.5, which is
fixed
> > in 3.7.6.
>
> > The issue could cause the new client to not see the correct size and
block
> > count of the file, leading to errors in reads (perhaps triggered by
the
> > restart of the vm) and writes on the image.
>

> Cool, I look fwd to testing that in 3.7.6, which I believe is due out next
> week?

> thanks,

> --
> Lindsay
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