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#!/usr/bin/env python | |
# sample usage: checksites.py eriwen.com nixtutor.com yoursite.org | |
import pickle, os, sys, logging | |
from httplib import HTTPConnection, socket | |
from smtplib import SMTP | |
def email_alert(message, status): | |
fromaddr = 'you@gmail.com' |
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""" | |
Determine IPv4 addresses on a Linux machine via the socket interface. | |
Thanks @bubthegreat the changes to make it Py2/3 compatible and the helpful | |
code comments: https://gist.github.com/pklaus/289646#gistcomment-2396272 | |
This version has all comments removed for brevity. | |
""" | |
import socket | |
import array | |
import struct |
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[unix_http_server] | |
file=/tmp/supervisor.sock ; path to your socket file | |
[supervisord] | |
logfile=/var/log/supervisord/supervisord.log ; supervisord log file | |
logfile_maxbytes=50MB ; maximum size of logfile before rotation | |
logfile_backups=10 ; number of backed up logfiles | |
loglevel=error ; info, debug, warn, trace | |
pidfile=/var/run/supervisord.pid ; pidfile location | |
nodaemon=false ; run supervisord as a daemon |
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#!/usr/bin/env python | |
# -*- coding: utf-8 -*- | |
# Example of `adapter' design pattern | |
# Copyright (C) 2011 Radek Pazdera | |
# This program is free software: you can redistribute it and/or modify | |
# it under the terms of the GNU General Public License as published by | |
# the Free Software Foundation, either version 3 of the License, or | |
# (at your option) any later version. |
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<?php | |
/** | |
* QR Code + Logo Generator | |
* | |
* http://labs.nticompassinc.com | |
*/ | |
$data = isset($_GET['data']) ? $_GET['data'] : 'http://labs.nticompassinc.com'; | |
$size = isset($_GET['size']) ? $_GET['size'] : '200x200'; | |
$logo = isset($_GET['logo']) ? $_GET['logo'] : FALSE; |
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#!/bin/sh | |
TMPFILE="/tmp/xtrabackup-runner.$$.tmp" | |
USEROPTIONS="--user=${MYSQL_USER} --password=${MYSQL_PASSWORD} --host=${MYSQL_HOST}" | |
BACKDIR=/srv/mysql-bak | |
BASEBACKDIR=$BACKDIR/base | |
INCRBACKDIR=$BACKDIR/incr | |
FULLBACKUPCYCLE=604800 # Create a new full backup every X seconds | |
KEEP=1 # Number of additional backups cycles a backup should kept for. | |
START=`date +%s` |
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# Linux. Act upon an event in a log file | |
# www.fduran.com | |
apt-get upgrade; apt-get install inotify-tools | |
# create file myalert.sh: | |
# example finding Exception in tomcat log and sending email | |
#!/bin/bash | |
while inotifywait -e modify /path/to/file.log; do |
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$(function () { | |
"use strict"; | |
// for better performance - to avoid searching in DOM | |
var content = $('#content'); | |
var input = $('#input'); | |
var status = $('#status'); | |
// my color assigned by the server | |
var myColor = false; |
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import redis | |
import threading | |
class Listener(threading.Thread): | |
def __init__(self, r, channels): | |
threading.Thread.__init__(self) | |
self.redis = r | |
self.pubsub = self.redis.pubsub() | |
self.pubsub.subscribe(channels) | |
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
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