[Gluster-devel] [Qusetions] How profile affect glusterfs performance?

[Pranith Kumar Karampuri]

On Wed, Jun 7, 2017 at 1:55 PM, Xie Changlong <xiechanglong.d at gmail.com>
wrote:

> 在 6/7/2017 3:08 PM, Pranith Kumar Karampuri 写道:
>
>> On Tue, Jun 6, 2017 at 8:14 AM, Xie Changlong <xiechanglong.d at gmail.com>
>> wrote:
>>
>> 在 6/5/2017 6:30 PM, Pranith Kumar Karampuri 写道:
>>>
>>> I meant what are you using gluster for? VM workload or image/video file
>>>> creation or lots of small files etc etc.
>>>>
>>>>
>>> 1) We use glusterfs for general purpose, no limit to image/video file
>>> creation or small files etc.
>>>
>>> Okay, this is good. What is the cluster size?
>> Is it replica 3 or replica 2 or arbiter or is it EC volume?
>>
>
> I use replica 2 on my test.
> But in the real world, "we have deployed more than 100 glusterfs nodes in
> producion(20 nodes for the biggest single cluster)" per Liu Yuan. Replica
> 2/3, or EC are optional.
>
>
>> Please don't mind me asking so many details. I am delighted to see you
>> guys
>>
>
> You are always welcome!
>
> active in the community because I have seen Xiubo Li's work on tcmu-runner
>> who is also from chinamobile and his work is pretty good :-).
>>
>
> Yeah, i would be very pleasant to convey your praise. :)
>
>
>>
>> 2) We just want a low performance affect way to calculate each brick's
>>> iops/bandwidth for the upper layer management app. BTW, is there any
>>> other
>>> way to get iops/bandwith for each brick besides profile?
>>>
>>>
>> At the moment we have these stats using profile commands. As per Facebook
>> patches they enable json capture of io-stats on their volumes and measure
>> these. They have it enabled always. If that is not enough for you, then we
>>
>
> I think you mean FB guys gather data based on io-stats with profile always
> on, am i right?
> BTW, are these patches open to everyone? so i can dig into it.
>

Yes, they do. The patches I gave earlier provide the facility to this in
io-stats. Do let us know if you have any doubts.


>
> should probably look at enhancing things. Do send patches if you think
>> something would make things better :-).
>>
>>
>>
>>> --
>>> Thanks
>>>      -Xie
>>>
>>>
>>
>>
>>
> --
> Thanks
>     -Xie
>



-- 
Pranith
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