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# SNAKES GAME
# Use ARROW KEYS to play, SPACE BAR for pausing/resuming and Esc Key for exiting

import curses
from curses import KEY_RIGHT, KEY_LEFT, KEY_UP, KEY_DOWN
from random import randint


curses.initscr()
win = curses.newwin(20, 60, 0, 0)

jiangtao7

"""
The MIT License (MIT)
Copyright (c) 2011 Numan Sachwani

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:

jiangtao7

#!groovy
import groovy.json.JsonOutput
import groovy.json.JsonSlurper

/*
Please make sure to add the following environment variables:
HEROKU_PREVIEW=<your heroku preview app>
HEROKU_PREPRODUCTION=<your heroku pre-production app>
HEROKU_PRODUCTION=<your heroku production app>

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#! /bin/sh
# ==================================================================
#  ______                           __     _____
# /_  __/___  ____ ___  _________ _/ /_   /__  /
#  / / / __ \/ __ `__ \/ ___/ __ `/ __/     / /
# / / / /_/ / / / / / / /__/ /_/ / /_      / /
#/_/  \____/_/ /_/ /_/\___/\__,_/\__/     /_/

# Multi-instance Apache Tomcat installation with a focus
# on best-practices as defined by Apache, SpringSource, and MuleSoft

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Python3 Virtualenv Setup

Requirements

• Python 3
• Pip 3

$ brew install python3

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Story: Writing Scripts with Go

This is a story about how I tried to use Go for scripting. In this story, I’ll discuss the need for a Go script, how we would expect it to behave and the possible implementations; During the discussion I’ll deep dive to scripts, shells, and shebangs. Finally, we’ll discuss solutions that will make Go scripts work.

Why Go is good for scripting?

While python and bash are popular scripting languages, C, C++ and Java are not used for scripts at all, and some languages are somewhere in between.

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Adding 2 nodes to an existing 3-node ZooKeeper ensemble without losing the Quorum

Since many deployments may start out with 3 nodes and so little is known about how to grow a cluster from 3 memebrs to 5 members without losing the existing Quorum, here is an example of how this might be achieved.

In this example, all 5 nodes will be running on the same Vagrant host for the purpose of illustration, running on distinct configurations (ports and data directories) without the actual load of clients.

YMMV. Caveat usufructuarius.

Step 1: Have a healthy 3-node ensemble

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Installing Cassandra on Mac OS X

Install Homebrew

Homebrew is a great little package manager for OS X. If you haven't already, installing it is pretty easy:

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

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import java.net.InetSocketAddress;
import java.util.concurrent.Executors;
import java.util.HashMap;
import java.util.Map;

import org.jboss.netty.bootstrap.ServerBootstrap;
import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
import org.jboss.netty.channel.*;
import static org.jboss.netty.channel.Channels.pipeline;
import org.jboss.netty.handler.codec.http.*;

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export zookeepers=$(maprcli node listzookeepers -noheader)
export bootstrap_servers=$(maprcli node list -columns hostname -noheader -filter csvc==kafka | awk '{ print $1 }' | head -1)

# Producer

# Setup
bin/kafka-topics.sh --zookeeper $zookeepers --create --topic test-rep-one --partitions 6 --replication-factor 1
bin/kafka-topics.sh --zookeeper $zookeepers --create --topic test --partitions 6 --replication-factor 3

# Single thread, no replication