Randommood

# Documentation for HAProxy
#   http://code.google.com/p/haproxy-docs/w/list
#   http://haproxy.1wt.eu/download/1.2/doc/architecture.txt

# NOTES:
#   open files limits need to be > 256000, use ulimit -n to set (on most POSIX systems)

global
        log 127.0.0.1     local0
        log 127.0.0.1     local1 notice

Randommood

About

This gist is a collection of my rough notes from Strange Loop 2012.

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I'm posting these notes immediately after each talk. Expect typos, formatting glitches, incomplete thoughts, and ...

Randommood

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = [email protected]:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

Randommood

$ mongo --port 4000
MongoDB shell version: 2.0.2
connecting to: 127.0.0.1:4000/test
PRIMARY> db.test.insert({'foo':'bar'})
PRIMARY> use local
PRIMARY> db.oplog.rs.find().sort({$natural:-1})
{ "ts" : { "t" : 1329058902000, "i" : 1 }, "h" : NumberLong("-9209932462579884476"), "op" : "i", "ns" : "test.test", "o" : { "_id" : ObjectId("4f37d45611558d5848a3d21a"), "foo" : "bar" } }

Randommood

# On Heroku
# Create dump file
heroku pgbackups:capture --app <application_name>

# On Engine Yard slice
# Get dump file from heroku
curl -o latest.dump `heroku pgbackups:url b005 --app <application_name> -e <environment>`

# drop and recreate database
bundle exec rake db:drop

Randommood

postgres=# \dx
                 List of installed extensions
  Name   | Version |   Schema   |         Description          
---------+---------+------------+------------------------------
 plpgsql | 1.0     | pg_catalog | PL/pgSQL procedural language
(1 row)

postgres=# \dx+
      Objects in extension "plpgsql"
            Object Description             

Randommood

#!/usr/bin/perl
use strict;
use warnings;
use Getopt::Long;

# This script will generate the commands used to preshard a collection
# in mongodb.
#
# See:
#     http://www.mongodb.org/display/DOCS/Splitting+Chunks

Randommood

tm99-s00026 ~ # sm --debug=mongodb mongodb configure
DEBUG mongodb: config path: /opt/sm/pkg/active/config/mongodb.conf
tm99-s00026 ~ # sm --debug=mongodb --force mongodb makedefaultconfig force
DEBUG mongodb: default config path: /etc/conf.d/mongodb.conf
tm99-s00026 ~ # cat /etc/conf.d/mongodb.conf 
# Mongodb essentials
# MONGODB_EXEC="/opt/sm/pkg/active/bin/mongod"
# MONGODB_DATA="/db/mongodb/active/data"
# MONGODB_LOG="/etc/conf.d/mongodb.conf"
# MONGODB_USER="mongodb"

Randommood

tm99-s00026 sm_mongodb # cat /etc/conf.d/mongodb/mongodb.conf 
#!/bin/sh

#
# /etc/conf.d/mongodb
#

# Mongodb essentials
MONGODB_EXEC="/mongod"

Randommood

module DataMapper
	module Adapters
		
		class ConnectionPoolAdapter < AbstractAdapter
			def initialize(name, options)
				super
				
				assert_kind_of 'options', @options[:pool],  Array
				
				raise ArgumentError, "The are no adapters in the adapter pool" if @options[:pool].empty?