Greg Burd gburd

ownership handoff

./dev/dev1/bin/riak-admin transfers
'[email protected]' waiting to handoff 6 partitions
'[email protected]' waiting to handoff 4 partitions
'[email protected]' waiting to handoff 6 partitions

Active Transfers:

transfer type: ownership_handoff

Building Riak on SmartOS, the hard way

Build Machine

Here is some information on the build machine I'm using for reference:

Dataset
```
$ dsadm list
```

UUID OS PUBLISHED URN

This gist has been moved to https://gist.github.com/3375528

(Github had some wonkiness and I couldn't update the gist files)

	#!/bin/sh

	# Shell script to install your public key on a remote machine
	# Takes the remote machine name as an argument.
	# Obviously, the remote machine must accept password authentication,
	# or one of the other keys in your ssh-agent, for this to work.
	#
	# http://www.devthought.com/2009/09/19/get-ssh-copy-id-in-mac-os-x/
	#

	%% Claim dry-run / simulation code
	%%
	%% If running outside attached Riak shell, must have Riak libs in codepath and
	%% proper cookie / long-form node name. Eg:
	%% erl -pa RIAK/deps/*/ebin -setcookie riak -name [email protected]
	%%
	%% Run node/2 passing in cluster claimaint and number of new nodes to test:
	%% Add 1 node: claim_dryrun:node('[email protected]', 1)
	%% Add 2 nodes: claim_dryrun:node('[email protected]', 2)
	%% ...

	(ns datomic-tutorial (:import [datomic Peer Util]
	[java.io FileReader]))

	;;create database
	(Peer/createDatabase "datomic:mem://seattle")

	(Peer/createDatabase "datomic:mem://seattle")
	(let [conn (Peer/connect "datomic:mem://seattle")]
	;; setup sample schema
	(.get (.transact conn

	#!/usr/bin/env sh

	##
	# This is script with usefull tips taken from:
	# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
	#
	# install it:
	# curl -sL https://raw.github.com/gist/2108403/hack.sh \| sh
	#

	;; Datomic example code
	(use '[datomic.api :only (db q) :as d])

	;; ?answer binds a scalar
	(q '[:find ?answer :in ?answer]
	42)

	;; of course you can bind more than one of anything
	(q '[:find ?last ?first :in ?last ?first]
	"Doe" "John")

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	source :rubygems

	gem 'riak-client'