[Gluster-users] Problem with self-heal

Milos Kozak milos.kozak at lejmr.com
Wed Jul 2 16:04:53 UTC 2014

Sure I will do that.. I was gonna enclose it to my answer, but this is 
better I guess

On 7/2/2014 11:38 AM, Ravishankar N wrote:
> On 07/02/2014 06:15 PM, Milos Kozak wrote:
>> Hi,
>> I am going to replicate the problem on clean gluster configuration
>> latter today. So far my answers are below.
> Hi Milos,
> If you are able to reproduce this issue, could you please file a bug
> [1]  and attach the gluster logs from both machines to the bug report?
> [1]
> https://bugzilla.redhat.com/enter_bug.cgi?product=GlusterFS&version=3.5.1&component=replicate
> Thanks ,
> Ravi
>> On 7/2/2014 1:38 AM, Ravishankar N wrote:
>>> On 07/02/2014 02:28 AM, Miloš Kozák wrote:
>>>> Hi,
>>>> I am running some test on top of v3.5.1 in my 2 nodes configuration
>>>> with one disk each and replica 2 mode.
>>>> I have two servers connected by a cable. Through this cable I let
>>>> glusterd communicate. I start dd to create a relatively large file. In
>>>> the middle of writing process I disconnect the cable, so on one server
>>>> (node1) I can see all data and on the other one (node2) I can see just
>>>> a split of the file when writing is finished
>>> Does this mean your client (mount point) is also on node 1?
>> Yes I mounted volume on both servers as follows:
>> localhost:vg0    /mnt
>>>> .. no surprise so far.
>>>> Then I put the cable back. After a while peers are discovered,
>>>> self-healing daemons start to communicate, so I can see:
>>>> gluster volume heal vg0 info
>>>> Brick node1:/dist1/brick/fs/
>>>> /node-middle - Possibly undergoing heal
>>>> Number of entries: 1
>>>> Brick node2:/dist1/brick/fs/
>>>> /node-middle - Possibly undergoing heal
>>>> Number of entries: 1
>>>> But on the network there are no data moving, which I verify by df..
>>> When  you get "Possibly undergoing heal" and no I/O is going on from the
>>> client, it means the self-heal daemon is healing the file. Can you check
>>> if there are  messages in glustershd.log of node1 about self-heal
>>> completion ?
>> There are no lines in log, that is the reason why I wrote this email
>> eventually.
>>>> Any help? In my opinion after a while I should get my nodes
>>>> synchronized, but after 20minuts of waiting still nothing (the file
>>>> was 2G big)
>>> Does gluster volume status show all processes being online?
>> All processes are running.
>> Milos
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