[openstack-dev] [MagnetoDB] PKI tokens size performance impact

[Aleksandr Chudnovets]

Hello team,

As it was discussed on IRC meeting yesterday I’m glad to share the results
of my testing of performance impact of PKI token validation.

My research is connected with bp [1] about adding lightweight session to
mdb for improvement overall performance.

For my tests I used PKI tokens with and without service catalog.

(Actually, PKI tokens is only option for MagnetoDB, because MagnetoDB

was designed to handle huge amount of requests per second.)

Here is my results:

- for lightweight requests, like list_tables, we can get 5% - 8%
performance boost using tokens without service catalog;

- for big and slow requests, like batch_write, performance boost is smaller.

- disabling keystone support in api-paste gives us 20% performance boost
for PKI tokens :)

So it can be good practice for MagnetoDB clients to use PKI tokens without

service catalog.

Another conclusion I can made, the PKI token validation works fast enough
and adding additional session mechanism won’t give big performance boost.

Please share your views.

[1] https://blueprints.launchpad.net/magnetodb/+spec/light-weight-session

Thanks,

Aleksandr Chudnovets
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Re: [openstack-dev] [MagnetoDB] Best practices for uploading large amounts of data

[Aleksandr Chudnovets]

Dmitriy Ukhlov wrote:

>  > I guess if we a talking about cassandra batch loading the fastest way
> is to generate sstables locally and load it into Cassandra via JMX or
> sstableloader
> http://www.datastax.com/dev/blog/bulk-loading
>
>
 Good idea, Dmitriy. IMHO bulk load is back-end specific task. So using
specialized tools seems good idea for me.

Regards,
Alexander Chudnovets
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[openstack-dev] [MagnetoDB] MagnetoDB API draft

[Aleksandr Chudnovets]

Hi all,

Here is the draft for MagnetoDB API:
https://wiki.openstack.org/wiki/MagnetoDB/api

Your comments and propositions are welcome. And welcome to discuss this
draft and any other KeyValue aaS -related subjects in our IRC channel:
#magnetodb. Please note, MagnetoDB team mostly in UTC+2.

Best regards,
Alexander Chudnovets
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Re: [openstack-dev] [MagnetoDB] Weekly IRC meeting schedule

[Aleksandr Chudnovets]

1300UTC is fine for me


On Thu, Mar 6, 2014 at 5:18 PM, Ilya Sviridov wrote:

> Any other opinions?
>
>
> On Thu, Mar 6, 2014 at 4:31 PM, Illia Khudoshyn 
> wrote:
>
>> 1300UTC is fine for me
>>
>>
>> On Thu, Mar 6, 2014 at 4:24 PM, Ilya Sviridov wrote:
>>
>>> Hello magnetodb contributors,
>>>
>>> I would like to suggest weekly IRC meetings on Thursdays, 1300 UTC.
>>>
>>> More technical details later.
>>>
>>> Let us vote by replying this email.
>>>
>>> With best regards,
>>> Ilya Sviridov
>>>
>>>
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>>>
>>
>>
>> --
>>
>> Best regards,
>>
>> Illia Khudoshyn,
>> Software Engineer, Mirantis, Inc.
>>
>>
>>
>> 38, Lenina ave. Kharkov, Ukraine
>>
>> www.mirantis.com 
>>
>> www.mirantis.ru
>>
>>
>>
>> Skype: gluke_work
>>
>> ikhudos...@mirantis.com
>>
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>
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