[Gluster-users] Replicated striped data lose
mahdi.adnan at earthlinktele.com
Sat Mar 12 16:21:58 UTC 2016
Both servers have HBA no RAIDs and i can setup a replicated or
dispensers without any issues.
Logs are clean and when i tried to migrate a vm and got the error,
nothing showed up in the logs.
i tried mounting the volume into my laptop and it mounted fine but, if i
use dd to create a data file it just hang and i cant cancel it, and i
cant unmount it or anything, i just have to reboot.
The same servers have another volume on other bricks in a distributed
replicas, works fine.
I have even tried the same setup in a virtual environment (created two
vms and install gluster and created a replicated striped) and again same
thing, data corruption.
On 03/12/2016 07:02 PM, David Gossage wrote:
> On Sat, Mar 12, 2016 at 9:51 AM, Mahdi Adnan
> <mahdi.adnan at earthlinktele.com <mailto:mahdi.adnan at earthlinktele.com>>
> Thanks David,
> My settings are all defaults, i have just created the pool and
> started it.
> I have set the settings as your recommendation and it seems to be
> the same issue;
> Type: Striped-Replicate
> Volume ID: 44adfd8c-2ed1-4aa5-b256-d12b64f7fc14
> Status: Started
> Number of Bricks: 1 x 2 x 2 = 4
> Transport-type: tcp
> Brick1: gfs001:/bricks/t1/s
> Brick2: gfs002:/bricks/t1/s
> Brick3: gfs001:/bricks/t2/s
> Brick4: gfs002:/bricks/t2/s
> Options Reconfigured:
> performance.stat-prefetch: off
> network.remote-dio: on
> cluster.eager-lock: enable
> performance.io-cache: off
> performance.read-ahead: off
> performance.quick-read: off
> performance.readdir-ahead: on
> Is their a raid controller perhaps doing any caching?
> In the gluster logs any errors being reported during migration process?
> Since they aren't in use yet have you tested making just mirrored
> bricks using different pairings of servers two at a time to see if
> problem follows certain machine or network ports?
> On 03/12/2016 03:25 PM, David Gossage wrote:
>> On Sat, Mar 12, 2016 at 1:55 AM, Mahdi Adnan
>> <mahdi.adnan at earthlinktele.com
>> <mailto:mahdi.adnan at earthlinktele.com>> wrote:
>> I have created a replicated striped volume with two bricks
>> and two servers but I can't use it because when I mount it in
>> ESXi and try to migrate a VM to it, the data get corrupted.
>> Is any one have any idea why is this happening ?
>> Dell 2950 x2
>> Seagate 15k 600GB
>> CentOS 7.2
>> Gluster 3.7.8
>> Appreciate your help.
>> Most reports of this I have seen end up being settings related.
>> Post gluster volume info. Below is what I have seen as most
>> common recommended settings.
>> I'd hazard a guess you may have some the read ahead cache or
>> prefetch on.
>> Mahdi Adnan
>> System Admin
>> Gluster-users mailing list
>> Gluster-users at gluster.org <mailto:Gluster-users at gluster.org>
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