Full-page background made with JavaScript and Canvas: the animation follows movement on non-touch devices
Forked from Marco Guglielmelli's Pen Animated Background.
Full-page background made with JavaScript and Canvas: the animation follows movement on non-touch devices
Forked from Marco Guglielmelli's Pen Animated Background.
These rules are adopted from the AngularJS commit conventions.
#!/bin/bash | |
# How to install PHP memcached on CentOS 6.5 | |
# Install dependencies | |
yum install cyrus-sasl-devel zlib-devel gcc-c++ | |
# Get the latest libmemcached | |
wget https://launchpad.net/libmemcached/1.0/1.0.16/+download/libmemcached-1.0.16.tar.gz | |
tar -xvf libmemcached-1.0.16.tar.gz |
from gevent import monkey | |
monkey.patch_socket() | |
import logging | |
import gevent | |
from gevent.queue import Queue | |
import pymysql as db | |
logging.basicConfig(level=logging.DEBUG) | |
LOGGER = logging.getLogger("connection_pool") |
# -*- coding: utf-8 -*- | |
from twisted.enterprise import adbapi | |
from twisted.python import log | |
import MySQLdb | |
import itertools | |
class ReconnectingMixin: | |
"""MySQL 重新连接时, ConnectionPool 可以正确执行指定的操作,流程是: | |
- 执行操作 |
;; Usage Example: | |
;; | |
;; <!-- BEGIN RECEIVE ORGTBL ${1:YOUR_TABLE_NAME} --> | |
;; <!-- END RECEIVE ORGTBL $1 --> | |
;; | |
;; <!-- | |
;; #+ORGTBL: SEND $1 orgtbl-to-gfm | |
;; | $0 | | |
;; --> |
分布式系统的核心是分布式通信,而传统上开发一套支持上千台规模集群,可靠性非常高的分布式通信框架,需要不少的精力投入。而在多数情景下,我们(特别是时间宝贵的OP)并不是非常关注技术实现的细节,而是希望有一套成熟、轻量、可靠性高、使用方便而且易于调试的分布式通信框架,可以直接使用,从而把时间放在具体业务逻辑上。
在PyCon 2012大会上,dotcloud公司开源了一套基于ZeroMQ和MessagePack的分布式通信框架(或者说是协议+Python实现)。该框架因为基于ZeroMQ,使用方法是RPC,所以被命名为ZeroRPC。ZeroRPC的特点在其官网的介绍中一目了然[1]:
ZeroRPC is a light-weight, reliable and language-agnostic library for distributed communication between server-side processes.
#!/bin/bash | |
# Source: http://toomuchdata.com/2012/06/25/how-to-install-python-2-7-3-on-centos-6-2/ | |
# Install stuff # | |
################# | |
# Install development tools and some misc. necessary packages | |
yum -y groupinstall "Development tools" | |
yum -y install zlib-devel # gen'l reqs |
""" | |
This is a simple example of WebSocket + Tornado + Redis Pub/Sub usage. | |
Do not forget to replace YOURSERVER by the correct value. | |
Keep in mind that you need the *very latest* version of your web browser. | |
You also need to add Jacob Kristhammar's websocket implementation to Tornado: | |
Grab it here: | |
http://gist.github.com/526746 | |
Or clone my fork of Tornado with websocket included: | |
http://github.com/pelletier/tornado | |
Oh and the Pub/Sub protocol is only available in Redis 2.0.0: |