John Daily macintux

Getting into public speaking (https://james.brooks.page/blog/getting-into-public-speaking)
So You Want To Speak At Software Conferences? (https://dylanbeattie.net/2025/12/08/so-you-want-to-speak-at-software-conferences.html)
How to Give a Good Talk (https://blog.sigplan.org/2025/03/31/how-to-give-a-good-talk/)
My 18 tips to deliver great presentations (https://jmmv.dev/2020/07/presentation-tips.html)
My 18 steps to prepare a great presentation (https://jmmv.dev/2020/07/presentation-preparation.html)
100 Tricks to Make Better Presentations (https://github.com/ciberado/100-trucos-para-hacer-mejores-presentaciones/blob/main/README.en.md)
A command-line based markdown presentation tool (https://github.com/visit1985/mdp)
Giving a presentation with perfect UI/UX design (https://habr.com/en/post/471624/)
Very Important Strangers (http://randsinrepose.com/archives/very-important-strangers/)
Edward Tufte's site (http://www.edwardtufte.com/)

Content no longer valid

You're free to view the older revisions of this gist, but much of this content has been rewritten and will appear on the [Basho blog] (http://basho.com/blog) in the very near future.

Update: First part of the series is now at http://basho.com/understanding-riaks-configurable-behaviors-part-1/

Slides from the talk

	%%% @author John Daily <jd@epep.us>
	%%% @copyright (C) 2012, John Daily
	%%% @doc
	%%% Assignment from programmingpraxis.com
	%%%
	%%% @reference See <a href="http://programmingpraxis.com/2009/02/19/rpn-calculator/">RPN Calculator</a>.
	%%% @end

	-module(rpncalc).
	-export([rpn/0]).


	%%% @author John Daily <jd@epep.us>
	%%% @copyright (C) 2012, John Daily
	%%% @doc
	%%% The httpc module in inets does not appear to offer any way to
	%%% determine the "real" URL if it follows a series of redirects
	%%% during its request. This code addresses that gap.
	%%%
	%%% The code does not interpret any HTML-based redirect, such as a
	%%% meta refresh.

	124> <<T7/utf8, Excess/binary>> = hd(Blob).
	<<77,195,131,194,188,110,99,104,101,110>>
	125> Excess.
	<<195,131,194,188,110,99,104,101,110>>
	126> T7.
	77

	I pledge subservience
	To the government
	Of the United States of America
	And to the police state to which we kneel
	One Nation under surveillance
	unconstitutional
	with paranoia and insecurity for all

	#!/usr/bin/perl -w

	use strict;
	use warnings;

	## Running this script:
	## 1 Set $datadir to whatever folder you'd like to store the new files
	## 2 Run this script with your cluster info file as input
	## $ ./split.pl < cluster-info.out
	##

John Daily macintux

Content no longer valid

Erlang

Distributed programming

	Riak's MapReduce functionality cannot survive a node failure. If a vnode involved with a query fails while actively processing the request, the entire query will have to be re-run. The failed query should be automatically terminated, but you'll have to re-run the query yourself.

	If you create queries using Riak Pipe (the technology layer beneath MapReduce), it is possible to create queries that can survive a vnode failure, but that is not a trivial exercise.

	Regarding the empty result set you're seeing: one possibility is that a vnode has failed recently and has come back online without data. MapReduce will not currently trigger a read repair, but that problem should be resolved with the forthcoming Riak 1.3 release.

	#!/usr/bin/perl -w

	use strict;
	use warnings;

	sub usage {
	my ($errmsg) = @_;
	my $msg = <<END;
	Usage: split-info <info file> <output directory>