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# -*- mode: ini -*- | ||
# vim: set ft=ini | ||
[run] | ||
source = src/proxenos |
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root = true | ||
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[*] | ||
charset = utf-8 | ||
end_of_line = lf | ||
insert_final_newline = true | ||
trim_trailing_whitespace = true | ||
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[*.{bat,cmd,ps1}] | ||
end_of_line = crlf | ||
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[*.{ini,py,rst,yml}] | ||
indent_style = space | ||
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[*.{json,py,rst}] | ||
indent_size = 4 | ||
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[*.{cfg,ini,rst,yml}] | ||
indent_size = 2 | ||
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[{Makefile,**.json,**.mk}] | ||
indent_style = tab |
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*.sublime-workspace | ||
.reqwire.lock | ||
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# Byte-compiled / optimized / DLL files | ||
__pycache__/ | ||
*.py[cod] | ||
*$py.class | ||
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# C extensions | ||
*.so | ||
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# Distribution / packaging | ||
.Python | ||
env/ | ||
build/ | ||
develop-eggs/ | ||
dist/ | ||
downloads/ | ||
eggs/ | ||
.eggs/ | ||
lib/ | ||
lib64/ | ||
parts/ | ||
sdist/ | ||
var/ | ||
*.egg-info/ | ||
.installed.cfg | ||
*.egg | ||
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# PyInstaller | ||
# Usually these files are written by a python script from a template | ||
# before PyInstaller builds the exe, so as to inject date/other infos into it. | ||
*.manifest | ||
*.spec | ||
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# Installer logs | ||
pip-log.txt | ||
pip-delete-this-directory.txt | ||
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# Unit test / coverage reports | ||
htmlcov/ | ||
.tox/ | ||
.coverage | ||
.coverage.* | ||
.cache | ||
nosetests.xml | ||
coverage.xml | ||
*,cover | ||
.hypothesis/ | ||
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# Translations | ||
*.mo | ||
*.pot | ||
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# Django stuff: | ||
*.log | ||
local_settings.py | ||
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# Flask stuff: | ||
instance/ | ||
.webassets-cache | ||
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# Scrapy stuff: | ||
.scrapy | ||
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# Sphinx documentation | ||
docs/build/ | ||
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# PyBuilder | ||
target/ | ||
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# IPython Notebook | ||
.ipynb_checkpoints | ||
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# pyenv | ||
.python-version | ||
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# celery beat schedule file | ||
celerybeat-schedule | ||
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# dotenv | ||
.env | ||
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# virtualenv | ||
venv/ | ||
ENV/ | ||
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# Spyder project settings | ||
.spyderproject | ||
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# Rope project settings | ||
.ropeproject |
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sudo: false | ||
language: python | ||
after_success: | ||
- coveralls | ||
python: | ||
- "2.7" | ||
- "3.3" | ||
- "3.4" | ||
- "3.5" | ||
install: pip install python-coveralls tox-travis | ||
script: tox |
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========= | ||
Changelog | ||
========= | ||
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.. contents:: | ||
:backlinks: none | ||
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Unreleased_ | ||
=========== | ||
*Nothing yet.* | ||
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0.1.0 - 2017-01-22 | ||
================== | ||
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- Initial release, with Consul mapper backend. | ||
- Very primitive command-line client, with regex filter support for | ||
cluster node addresses. | ||
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.. _Unreleased: https://github.com/darvid/proxenos/compare/v0.0.1...HEAD |
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MIT License | ||
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Copyright (c) 2017 David Gidwani | ||
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Permission is hereby granted, free of charge, to any person obtaining a copy | ||
of this software and associated documentation files (the "Software"), to deal | ||
in the Software without restriction, including without limitation the rights | ||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
copies of the Software, and to permit persons to whom the Software is | ||
furnished to do so, subject to the following conditions: | ||
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The above copyright notice and this permission notice shall be included in all | ||
copies or substantial portions of the Software. | ||
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
SOFTWARE. | ||
|
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global-exclude *.py[cod] | ||
global-exclude __pycache__ | ||
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graft docs | ||
graft requirements/lck | ||
graft src | ||
graft tests | ||
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include .coveragerc | ||
include .editorconfig | ||
include .travis.yml | ||
include tox.ini | ||
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include AUTHORS | ||
include CHANGELOG.rst | ||
include LICENSE | ||
include MANIFEST.in | ||
include README.rst |
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======== | ||
proxenos | ||
======== | ||
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.. image:: https://img.shields.io/pypi/v/proxenos.svg | ||
:target: https://pypi.python.org/pypi/proxenos | ||
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.. image:: https://img.shields.io/pypi/pyversions/proxenos.svg | ||
:target: https://pypi.python.org/pypi/proxenos | ||
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.. image:: https://travis-ci.org/darvid/proxenos.svg?branch=master | ||
:target: https://travis-ci.org/darvid/proxenos | ||
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.. image:: https://img.shields.io/coveralls/darvid/proxenos.svg | ||
:target: https://coveralls.io/github/darvid/proxenos | ||
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.. image:: https://badges.gitter.im/python-proxenos/Lobby.svg | ||
:alt: Join the chat at https://gitter.im/python-proxenos/Lobby | ||
:target: https://gitter.im/python-proxenos/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge | ||
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A Python toolkit for Rendezvous/Highest Random Weight (HRW) hash based routing. | ||
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.. code-block:: pycon | ||
>>> import proxenos.mappers.consul | ||
>>> import proxenos.rendezvous | ||
>>> mapper = proxenos.mappers.consul.ConsulClusterMapper( | ||
... host='localhost', port=8500) | ||
>>> mapper.update() | ||
>>> mapper.cluster | ||
{SocketAddress(host=IPAddress('::'), port=8000), | ||
SocketAddress(host=IPAddress('::'), port=8001), | ||
SocketAddress(host=IPAddress('::'), port=8300), | ||
SocketAddress(host=IPAddress('::'), port=8500)} | ||
>>> mapper.select('github.com', proxenos.rendezvous.HashMethod.SIPHASH) | ||
SocketAddress(host=IPAddress('::'), port=8001) | ||
.. code-block:: shell | ||
$ proxenos select -b consul -h localhost -p 8500 github.com | ||
0.0.0.0:8300 | ||
Features | ||
======== | ||
* Support for multiple service discovery backends possible. *Currently | ||
only support for Consul is implemented, but other backends coming | ||
eventually.* | ||
* Supports many different hash functions and PRFs. The default hashing | ||
method is the `SipHash <https://131002.net/siphash/>`_ PRF. | ||
* Provides a command-line interface for quickly testing/debugging | ||
node selection. | ||
Installation | ||
============ | ||
.. code-block:: shell | ||
$ pip install proxenos | ||
$ # If you'd like Murmur3 support, use: | ||
$ pip install proxenos[murmur] | ||
Notes | ||
===== | ||
**proxenos** uses Python's PRNG for calculating the weight of nodes in | ||
a cluster, rather than using a linear congruential generator (LCG_) | ||
as described in the `original paper on Rendezvous hashing`__. Seeded | ||
weights generated are limited to ``sys.maxsize``, which means the | ||
resulting weights will differ depending on the platform architecture. | ||
.. _LCG: https://en.wikipedia.org/wiki/Linear_congruential_generator | ||
.. _thaler_ravishankar_1996: http://www.eecs.umich.edu/techreports/cse/96/CSE-TR-316-96.pdf | ||
__ thaler_ravishankar_1996_ | ||
Similar projects | ||
================ | ||
* `clandestined <https://github.com/ewdurbin/clandestined-python>`_ | ||
* `nikhilgarg28/rendezvous <https://github.com/nikhilgarg28/rendezvous>`_ |
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