AtulKsol

psql: FATAL: Peer authentication failed for user “postgres” (or any user)

The connection failed because by default psql connects over UNIX sockets using peer authentication, that requires the current UNIX user to have the same user name as psql. So you will have to create the UNIX user postgres and then login as postgres or use sudo -u postgres psql database-name for accessing the database (and psql should not ask for a password).

If you cannot or do not want to create the UNIX user, like if you just want to connect to your database for ad hoc queries, forcing a socket connection using psql --host=localhost --dbname=database-name --username=postgres (as pointed out by @meyerson answer) will solve your immediate problem.

But if you intend to force password authentication over Unix sockets instead of the peer method, try changing the following pg_hba.conf* line:

from

teocci

Awesome Courses

Introduction

There is a lot of hidden treasure lying within university pages scattered across the internet. This list is an attempt to bring to light those awesome courses which make their high-quality material i.e. assignments, lectures, notes, readings & examinations available online for free.

Table of Contents

leonardofed

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

---

freyes

Source: https://g751jy.wordpress.com/about/parrot-zik-bluetooth-headset/
        https://bbs.archlinux.org/viewtopic.php?id=194006
Cached: http://webcache.googleusercontent.com/search?q=cache:4stTobIXSD0J:https://g751jy.wordpress.com/about/parrot-zik-bluetooth-headset/+&cd=3&hl=en&ct=clnk&gl=us

    Bug and possible solution: actually I found a bug in that make the headset unusable, it seems that the pulse audio module: module-bluetooth-discover works only if started after the X11 session is up. So I have a workaround.

    Edit the file:

    /etc/pulse/default.pa

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

odrobnik

// Swift version of https://developer.apple.com/library/mac/technotes/tn2084/_index.html

	@IBAction func testButtonPushed(sender: AnyObject) {
		
		let URL = NSBundle.mainBundle().URLForResource("SendFinderMessage", withExtension: "scpt")!
		
		var errors: NSDictionary?
		let script = NSAppleScript(contentsOfURL: URL, error: &errors)!
		

cjzamora

Source: http://datahugger.org/datascience/setting-up-hadoop-v2-with-spark-v1-on-osx-using-homebrew/

This post builds on the previous setup Hadoop (v1) guide, to explain how to setup a single node Hadoop (v2) cluster with Spark (v1) on OSX (10.9.5).

Apache Hadoop is a framework that allows for the distributed processing of large data sets across clusters of computers using simple programming models. It is designed to scale up from single servers to thousands of machines, each offering local computation and storage. Rather than rely on hardware to deliver high-availability, the library itself is designed to detect and handle failures at the application layer, so delivering a highly-available service on top of a cluster of computers, each of which may be prone to failures. The Apache Hadoop framework is composed of the following core modules:

HDFS (Distributed File System): a distributed file-system that stores data on commodity machines, providing very high aggregate bandwidth across the cluster.
YARN (Yet A

marteinn

//
//  MSButtonTextTopCell.h
//  <Project>
//
//  Created by Martin Sandström on 2015-09-23.
//  Copyright (c) 2015 Martin Sandström. All rights reserved.
//

#import <Cocoa/Cocoa.h>

OndrejP

#!/bin/bash

export Register=https://register.example.com
export cLink="/v2/_catalog?n=10"
export cFile=docker.register.catalog
export tFile=docker.register.tags
export wgetC="wget -O- -q -S "
# Usage with user/password
# export wgetC="wget -O- -q -S --user=ondra --password=heslo "

13k

// How to build: "CC=clang go build"

package main

import (
	"fmt"
	"net/url"
	"strconv"
	"unsafe"
)