[sheepdog-users] Serialize inflight requests

[Hitoshi Mitake]

Vedvyas,

Could you test entire branch?
https://github.com/sheepdog/tgt/commits/lock-and-serialize
# or did you already test the branch, not only the above patch?

BTW, what kind of error logs can be found in tgt side?

Thanks,
Hitoshi

On Mon, Apr 25, 2016 at 5:00 PM, Vedvyas shanbhogue <vedvyas13686 at gmail.com>
wrote:

> Thanks much . I will be glad to test the patch .
>
> I included the serialization fix in my code but I still see this error
> flagged sometimes. Are there any other fixes queued up that may address
> this ?
>
> In my test I copy a 4G .iso file to the vdi over iscsi and then compute a
> sha hash on it. Sometimes I see this error show up and when it does the sha
> hash also does not match .
>
>
> On Mon, Apr 25, 2016 at 12:12 AM Hitoshi Mitake <mitake.hitoshi at gmail.com>
> wrote:
>
>> Hi Vedvyas,
>>
>> Yes, the patch isn't in the main line of tgt yet. I'm working on cleaning
>> the code.
>> I'll send these patches to the tgt list in the near future. I'll cc you
>> in the thread.
>>
>> And thanks for your report! We see a similar problem in qemu already. But
>> the problem isn't seen in a case of iSCSI yet. I believe the serializing
>> patch will solve the problem, could you test the patch if you have a time?
>>
>> Thanks,
>> Hitoshi
>>
>>
>> On Mon, Apr 25, 2016 at 1:00 AM, Vedvyas shanbhogue <
>> vedvyas13686 at gmail.com> wrote:
>>
>>> Hitoshi Hi -
>>>
>>> I see you have a patch here for TGT sheepdog driver to serialize
>>> inflight requests
>>>
>>>
>>> https://github.com/sheepdog/tgt/commit/7189821315d6b17a4c8a858d7c827933fb4b77a6
>>>
>>> This IMHO not in the main tree.
>>>
>>> I am seeing these errors sometimes in the sheep log and looks like they
>>> may be due to similar serializing issue. Please advice if you would
>>> recommend picking up this patch and if this would address this error that I
>>> see sometimes.
>>>
>>> Thanks much!
>>>
>>> VS
>>>
>>> Apr 24 11:23:43  ERROR [gway 46188] wait_forward_request(438) fail
>>> a34a0500001806, No object found
>>> Apr 24 11:23:43  ERROR [gway 46188] wait_forward_request(438) fail
>>> a34a0500001806, No object found
>>> Apr 24 11:23:43  ERROR [gway 46187] wait_forward_request(438) fail
>>> a34a0500001806, No object found
>>> Apr 24 11:23:43  ERROR [gway 46187] wait_forward_request(438) fail
>>> a34a0500001806, No object found
>>> Apr 24 11:23:43  ERROR [gway 46145] wait_forward_request(438) fail
>>> a34a0500001806, No object found
>>> Apr 24 11:24:12  ERROR [gway 46392] wait_forward_request(438) fail
>>> a34a050000184e, No object found
>>> Apr 24 11:24:12  ERROR [gway 46392] wait_forward_request(438) fail
>>> a34a050000184e, No object found
>>> Apr 24 11:24:12  ERROR [gway 46389] wait_forward_request(438) fail
>>> a34a050000184e, No object found
>>> Apr 24 11:24:12  ERROR [gway 46389] wait_forward_request(438) fail
>>> a34a050000184e, No object found
>>> Apr 24 11:24:12  ERROR [gway 46391] wait_forward_request(438) fail
>>> a34a050000184e, No object found
>>> Apr 24 11:24:12  ERROR [gway 46391] wait_forward_request(438) fail
>>> a34a050000184e, No object found
>>> Apr 24 11:24:12  ERROR [gway 46393] wait_forward_request(438) fail
>>> a34a050000184e, No object found
>>> Apr 24 11:24:12  ERROR [gway 46393] wait_forward_request(438) fail
>>> a34a050000184e, No object found
>>> Apr 24 11:24:12  ERROR [gway 46298] wait_forward_request(438) fail
>>> a34a050000184e, No object found
>>> Apr 24 11:26:10  ERROR [gway 46618] wait_forward_request(438) fail
>>> a34a0500001996, No object found
>>> Apr 24 11:26:10  ERROR [gway 46618] wait_forward_request(438) fail
>>> a34a0500001996, No object found
>>> Apr 24 11:26:10  ERROR [gway 46613] wait_forward_request(438) fail
>>> a34a0500001996, No object found
>>>
>>>
>>>
>>> --
>>> sheepdog-users mailing lists
>>> sheepdog-users at lists.wpkg.org
>>> https://lists.wpkg.org/mailman/listinfo/sheepdog-users
>>>
>>>
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