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hitxiang / gist:9481294
Created March 11, 2014 07:49 — forked from mattd/gist:1006398
server {
root /var/www/example.com/static;
server_name example.com;
access_log /var/log/nginx/example.com.access.log;
error_log /var/log/nginx/example.com.error.log;
try_files /maintenance.html @proxy;
location @proxy {
proxy_pass http://127.0.0.1:10001;
@hitxiang
hitxiang / Changes to Support Single-User RVM Install
Created April 22, 2014 08:16 — forked from shanlalit/Changes to Support Single-User RVM Install
Munin Passenger Plug-in Installation
Configure the passenger plug-ins according the the guide on http://www.alfajango.com/blog/how-to-monitor-your-railspassenger-app-with-munin/
NOTE: restart munin after implementing the following changes for Single-User RVM
sudo nano /etc/munin/plugin-conf.d/munin-node
[passenger_*]
user root
@hitxiang
hitxiang / atl_zlib_def
Last active August 29, 2015 14:01
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "zlib.h"
//#define CHUNK 16384
#define CHUNK 1024
#define INFLAT_RATE 16
#define DEFLAT_RATE 1.2
@hitxiang
hitxiang / gist:c6e0d4709b54ac1f6f9a
Created August 11, 2014 08:04 — forked from prasoonsharma/gist:717903
# DATA FRAME OPERATIONS IN R
# Create data frame
# A dataset is ~ table (list of vectors)
id <- c(1,2,3)
name <- c("John", "Kirk", "AJ")
age <- c(21,27,18)
employees <- data.frame(ID=id, Name=name, Age=age)
employees
@hitxiang
hitxiang / tmux.md
Created August 29, 2014 08:20 — forked from andreyvit/tmux.md

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

@hitxiang
hitxiang / linear_probabilistic_counters.py
Last active August 29, 2015 14:06 — forked from devdazed/lp_counters.py
"""
Simple Linear Probabilistic Counters
Credit for idea goes to:
http://highscalability.com/blog/2012/4/5/big-data-counting-how-to-count-a-billion-distinct-objects-us.html
http://highlyscalable.wordpress.com/2012/05/01/probabilistic-structures-web-analytics-data-mining/
Installation:
pip install smhasher
pip install bitarray
@hitxiang
hitxiang / README.md
Last active August 29, 2015 14:07 — forked from FokkeZB/README.md
@hitxiang
hitxiang / dump_memcached.rb
Last active August 29, 2015 14:12
dump all the key value pairs in memcached
#!/usr/bin/env ruby
# List all keys stored in memcache.
# Credit to Graham King at http://www.darkcoding.net/software/memcached-list-all-keys/ for the original article on how to get the data from memcache in the first place.
require 'net/telnet'
headings = %w(id expires bytes cache_key value)
rows = []
@hitxiang
hitxiang / check_forkrate.sh
Last active August 29, 2015 14:14 — forked from internetstaff/check_forkrate.sh
#!/bin/bash
# Copyright bitly, Aug 2011
# written by Jehiah Czebotar
DATAFILE="/var/tmp/nagios_check_forkrate.dat"
VALID_INTERVAL=600
OK=0
WARNING=1
CRITICAL=2
@hitxiang
hitxiang / threads.java
Last active August 29, 2015 14:18 — forked from ericdcobb/threads.java
package com.levelsbeyond;
import java.util.Date;
import java.util.concurrent.Callable;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
/**
* Thread Test