[Gluster-users] Replicated striped data lose

[Mahdi Adnan]

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>> 
> wrote:
>
>     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
>     Bricks:
>     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:
>>
>>         Dears,
>>
>>         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.
>>
>>     quick-read=off
>>     read-ahead=off
>>     io-cache=off
>>     stat-prefetch=off
>>     eager-lock=enable
>>     remote-dio=on
>>
>>
>>         Mahdi Adnan
>>         System Admin
>>
>>
>>         _______________________________________________
>>         Gluster-users mailing list
>>         Gluster-users at gluster.org <mailto:Gluster-users at gluster.org>
>>         http://www.gluster.org/mailman/listinfo/gluster-users
>>
>>
>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.gluster.org/pipermail/gluster-users/attachments/20160312/273c5544/attachment.html>