vkmc

I heard about the Grace Hopper Celebration during my GNOME Outreach Program for Women [1] internship [2] and I has been interested in attending since then. The following reasons have motivated me to apply for a scholarship.

From the time I started college I have been curious by the fact that women in computing in my home country are hard to find, and that there is little being done by local organizations to change this. I believe that change has to start somewhere, so I have been trying to spread the word about some of the available opportunities - like OPW and Rails Girls Summer of Code (RGSoC) [3] - between women in my college with some success. I've also presented a publication about my OPW experience [4] in the 42nd JAIIO JSL [5], a national conference that gathers researchers and professionals in FOSS from many important universities and companies across the country. I'm looking for more ways to encourage women to join computer science careers and jobs in my country, and I'm certain that GHC is the perf

vkmc

- Serialization protocol

It has been discussed to use MessagePack for many reasons, including
  - No need of an external compiler
  - Support for many languages (including Python, Javascript, our main need ATM)
  - Ease of deployment
  - Performance

Leaving that aside, we noticed that Profobuf has been chosen for the POC and we looked into it. Regarding this benchmark [0], MsgPack could perform slightly better than ProtoBuf (we should check it again given that this article is of 2011). We also got some similar opinions regarding Protobuf during the summit.

vkmc

Related spec: https://review.openstack.org/#/c/122425/2/specs/kilo/define-a-wire-protocol.rst

- Websockets? http://tools.ietf.org/html/rfc6455
Pros: Persistent. Faster than HTTP. Its on port 80 (firewall friendly). There is a 'secure' version. Full duplex! Both server and client have to support them.
Cons: Inits with an HTTP handshake... so no HTTP, no Websocket. It won't fit some of the use cases (?). Only transmits text or JSON.
POC: Yes.

- Raw TCP?
Pros: UBER fast. Not tied to the web.
Cons: Lower level, harder to implement.

vkmc

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vkmc

(env)[fedora@marconi-tests transport-amqp10]$ pip install -e .
Obtaining file:///home/fedora/marconi-transport-amqp/transport-amqp10
  Running setup.py (path:/home/fedora/marconi-transport-amqp/transport-amqp10/setup.py) egg_info for package from file:///home/fedora/marconi-transport-amqp/transport-amqp10
    ERROR:root:Error parsing
    Traceback (most recent call last):
      File "/home/fedora/marconi-transport-amqp/transport-amqp10/env/lib/python2.7/site-packages/pbr/core.py", line 104, in pbr
        attrs = util.cfg_to_args(path)
      File "/home/fedora/marconi-transport-amqp/transport-amqp10/env/lib/python2.7/site-packages/pbr/util.py", line 238, in cfg_to_args
        pbr.hooks.setup_hook(config)
      File "/home/fedora/marconi-transport-amqp/transport-amqp10/env/lib/python2.7/site-packages/pbr/hooks/__init__.py", line 27, in setup_hook

vkmc

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "[email protected]"

vkmc

Code all summer long in OpenStack: experiences and outcomes of an intern

The end of Google Summer of Code (GSoC) is near, so I wanted to share with you how things worked out for me.

Precisely I wanted to let you know my perception about what it takes to participate to GSoC, the blockers you may encounter and how to overcome them, what to expect after the internship and a brief description of what I have been doing during my internship.

What it takes

vkmc

# Messages

       Marconi                                                          AMQP
       POST MESSAGES                                                    post_message operation
                                                                             ./client.py amqp://127.0.0.1:8888/poptart/
                                                                                 {subject: 'Saying hi!', body: 'POPTARTS @¿@'}
       LIST MESSAGES [D]                                                list_message operation
                                                                             ./client.py amqp://127.0.0.1:8888/poptart/messages
                                                                             OR
                                                                             ./client.py amqp://127.0.0.1:8888/poptart/

vkmc

Interaction with the broker using Apache Proton library

Apache Proton API http://qpid.apache.org/releases/qpid-proton-0.7/protocol-engine/python/api/index.html

# Queues

AMQP Queues are created in a lazy way (when messages are sent). The put() method in the Messenger class is used with that purpose.

AMQP Messenger class http://qpid.apache.org/releases/qpid-proton-0.7/protocol-engine/python/api/proton.Messenger-class.html.

vkmc

- Swift

Pros: Better (the best in fact) integration with OpenStack. Easy to deploy and operate. 

Cons: Sharding? https://blueprints.launchpad.net/swift/+spec/container-sharding

- RethinkDB

Pros: Flexible schemas and scalability. Similar to MongoDB but aims to overcome scalability and practical limitation of the latter. Easy to setup and learn. Written in C++ like Mongo.