Gert Leenders glnds

Function	Shortcut
previous tab	⌘ + left arrow
next tab	⌘ + right arrow
go to tab	⌘ + number
go to window	⌘ + Option + Number
go to split pane by direction	⌘ + Option + arrow
go to split pane by order of use	⌘ + ] , ⌘ + [
split window horizontally (same profile)	⌘ + D
split window vertically (same profile)	⌘ + d

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

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Yesterday I upgraded our running elasticsearch cluster on a site which serves a few million search requests a day, with zero downtime. I've been asked to describe the process, hence this blogpost.

To make it more complicated, the cluster was running elasticsearch version 0.17.8 (released 6 Oct 2011) and I upgraded it to the latest 0.19.10. There have been 21 releases between those two versions, with a lot of functional changes, so I needed to be ready to roll back if necessary.

Our setup:

elasticsearch

We run elasticsearch on two biggish boxes: 16 cores plus 32GB of RAM. All indices have 1 replica, so all data is stored on both boxes (about 45GB of data). The primary data for our main indices is also stored in our database. We have a few other indices whose data is stored only in elasticsearch, but are updated once daily only. Finally, we store our sessions in elasticsearch, but active sessions are cached in memcached.

###Vim Cheat Sheet

MOVEMENT

Basic movement: h j k l (left, down,up, right)
Word movement: w b (next, back) W B (ignore punct)
Number powered movement: 3w
Start of line: 0, end $
Start doc: gg, end: G, line: 6G
Next page: CTRL+f, Back page: CTRL+b, 1/2 versions: CTRL+d, CTRL+u

People

`:bowtie:`	😄 `:smile:`	😆 `:laughing:`
😊 `:blush:`	😃 `:smiley:`	☺️ `:relaxed:`
😏 `:smirk:`	😍 `:heart_eyes:`	😘 `:kissing_heart:`
😚 `:kissing_closed_eyes:`	😳 `:flushed:`	😌 `:relieved:`
😆 `:satisfied:`	😁 `:grin:`	😉 `:wink:`
😜 `:stuck_out_tongue_winking_eye:`	😝 `:stuck_out_tongue_closed_eyes:`	😀 `:grinning:`
😗 `:kissing:`	😙 `:kissing_smiling_eyes:`	😛 `:stuck_out_tongue:`

Vim Cheatsheet

vim {filename}

General
`:e {filename}`	edit a file
`:q`	quit
`:q!`	quit without writing
`:wa`	write all changed files (save all changes), and keep working

Installation

Install fish via Brew
Optionally install Oh My Fish!
Add fish to known shells
Set default shell to fish

brew install fish  
curl -L https://get.oh-my.fish | fish

	# First install tmux
	brew install tmux

	# For mouse support (for switching panes and windows)
	# Only needed if you are using Terminal.app (iTerm has mouse support)
	Install http://www.culater.net/software/SIMBL/SIMBL.php
	Then install https://bitheap.org/mouseterm/

	# More on mouse support http://floriancrouzat.net/2010/07/run-tmux-with-mouse-support-in-mac-os-x-terminal-app/

	package org.scribe.builder.api;

	import java.util.regex.Matcher;
	import java.util.regex.Pattern;

	import org.scribe.exceptions.OAuthException;
	import org.scribe.extractors.AccessTokenExtractor;
	import org.scribe.model.OAuthConfig;
	import org.scribe.model.OAuthConstants;
	import org.scribe.model.OAuthRequest;