Ping Zhang pingzh

Public service announcement: never delete postmaster.pid. Really. Great way to get data corruption.

You already had PostgreSQL installed, and you deleted the data dir without stopping the running server. So you now have some orphan PostgreSQL server processes that are managing data files that've been deleted, so they're no longer accessible in the file system and will be fully deleted when the last open file handle to them is closed. You can't use pg_ctl to shut the server down like normal because you've deleted the cluster datadir, so you must simply kill the processes. Kill the postmaster (do not use kill -9, just an ordinary kill will do) and the rest will shut down too.

You will then be able to start a new server in the datadir against the freshly initdb'd data.

It is highly likely that you will experience conflicts down the track unless you uninstall the other older version of PostgreSQL.

In a nutshell:

	require 'benchmark'

	class Proc
	def slow_callback(callable, *args)
	self === Class.new do
	method_name = callable.to_sym
	define_method(method_name) { \|&block\| block.nil? ? true : block.call(*args) }
	define_method("#{method_name}?") { true }
	def method_missing(method_name, *args, &block) false; end
	end.new

	import UIKit

	protocol YelpRequestDelegate {
	func getYelpData() -> AnyObject
	func processYelpData(data: NSData) -> NSData
	}

	class YelpAPI {
	var delegate: YelpRequestDelegate?


	private let _refreshControl: UIRefreshControl!

	//in addSubviews
	tableView.addSubview(refreshControl)

	func refreshView() {
	refreshControl.beginRefreshing()
	tableView.reloadData()
	//initData()

	class MyAccountViewController: UIViewController {
	private var _leftBarButtion: UIBarButtonItem!
	private var _rightBarButton: UIBarButtonItem!

	override func viewDidLoad() {
	super.viewDidLoad()
	addSubviews()
	addLayout()
	}
	func addSubviews() {

	var followingNumer: UIButton {
	if _followingNumer == nil {
	_followingNumer = UIButton()
	_followingNumer.titleLabel?.lineBreakMode = .ByWordWrapping
	_followingNumer.titleLabel?.textAlignment = .Left
	_followingNumer.titleLabel?.font = TprofileButtonFont
	_followingNumer.setTitleColor(TprofileButtonFontColor, forState: .Normal)
	_followingNumer.setTitle("222\nFollowiing", forState: .Normal)
	}
	return _followingNumer

	let attributeString: NSMutableAttributedString = NSMutableAttributedString(string: deal.value)
	attributeString.addAttribute(NSStrikethroughStyleAttributeName, value: 1, range: NSMakeRange(0, attributeString.length))
	value.attributedText = attributeString

	func onPanGesture(sender: UIPanGestureRecognizer) {
	let translation = sender.translationInView(view)
	let velocity = sender.velocityInView(view)

	if sender.state == UIGestureRecognizerState.Began {

	}
	else if sender.state == UIGestureRecognizerState.Changed {
	contentView.snp_updateConstraints(closure: { (make) -> Void in
	make.left.equalTo(view).offset(translation.x)

	## hexdiget to digest
	hexdigest = Digest::MD5.hexdigest("ping")

	digest = hexdigest.scan(/../).map(&:hex).pack("C*")

	## digest to hexdigest
	digest = Digest::MD5.digest('http://www.example.com')

	hexdigest = digest.unpack('H*').first

	//
	// RBResizer.swift
	// Locker
	//
	// Created by Hampton Catlin on 6/20/14.
	// Copyright (c) 2014 rarebit. All rights reserved.
	//

	import UIKit