[Gluster-users] Problem with self-heal

[Miloš Kozák]

Hi, I would like to ask about the progress. On the ticket there is 
nothing new added..

Thanks, Milos



Dne 14-07-02 11:37 PM, Miloš Kozák napsal(a):
> Submitted: 1115748
>
> Milos
>
> Dne 14-07-02 11:40 AM, Vijay Bellur napsal(a):
>> 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.
>>>
>>> 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.
>>>
>>
>> Output of strace -f -p <self-heal-daemon pid> from both nodes might 
>> also help.
>>
>> Thanks,
>> Vijay
>>
>
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