Sergey Yelin kpy3

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

Does the design expect failures to happen regularly and handle them gracefully?
Have we kept things as simple as possible?

FWIW: I didn't produce the content presented here (the outline from Edmond Lau's book). I've just copy-pasted it from somewhere over the Internet, but I cannot remember what exactly the original source is. I was also not able to find the author's name, so I cannot give him/her the proper credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

Here are the steps to installing and setting up GDB on Mac OS Sierra/High Sierra. Run brew install gdb. On starting gdb, you will get the following error:

Unable to find Mach task port for process-id 2133: (os/kern) failure (0x5).
 (please check gdb is codesigned - see taskgated(8))

To fix this error, follow the following steps:

General Background and Overview

Probabilistic Data Structures for Web Analytics and Data Mining : A great overview of the space of probabilistic data structures and how they are used in approximation algorithm implementation.
Models and Issues in Data Stream Systems
Philippe Flajolet’s contribution to streaming algorithms : A presentation by Jérémie Lumbroso that visits some of the hostorical perspectives and how it all began with Flajolet
Approximate Frequency Counts over Data Streams by Gurmeet Singh Manku & Rajeev Motwani : One of the early papers on the subject.
[Methods for Finding Frequent Items in Data Streams](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.187.9800&rep

	# More info: https://github.com/neovim/neovim/issues/9050#issuecomment-429674155
	export SDKROOT=`xcrun --show-sdk-path`
	export CC=clang CXX=clang CFLAGS="-g -O3"
	KERL_USE_AUTOCONF=no
	KERL_CONFIGURE_OPTIONS="--with-ssl=`brew --prefix openssl` --enable-vm-probes --enable-dirty-schedulers --enable-kernel-poll --enable-esock --with-dynamic-trace=dtrace --without-javac --disable-hipe --disable-native-libs --without-odbc --enable-threads --disable-sctp --enable-smp-support"
	KERL_BUILD_DOCS=no
	KERL_INSTALL_MANPAGES=yes
	KERL_INSTALL_HTMLDOCS=no
	KERL_ENABLE_PROMPT=yes
	KERL_PROMPT_FORMAT="%F{red}[erl:%BUILDNAME%]%f "

	# Kernel sysctl configuration file for Red Hat Linux
	#
	# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and
	# sysctl.conf(5) for more details.

	# Controls source route verification
	net.ipv4.conf.default.rp_filter = 1

	# Do not accept source routing
	net.ipv4.conf.default.accept_source_route = 0

	-module(timetop).

	-export([top/2]).

	top(Duration, Count) ->
	OldPrio = erlang:process_flag(priority, high),
	Result = scheduled_time_top(Duration),
	erlang:process_flag(priority, OldPrio),
	lists:sublist(Result, Count).

	extern crate hyper;

	use std::io;

	use hyper::Client;
	use hyper::header::Connection;

	#[test]
	fn it_works() {
	let client = Client::new();

	1) see re: increasing shmmax http://stackoverflow.com/a/10629164/1283020

	2) add to postgresql.conf:
	shared_preload_libraries = 'pg_stat_statements' # (change requires restart)
	136 pg_stat_statements.max = 1000
	137 pg_stat_statements.track = all

	3) restart postgres

	4) check it out in psql

	Homebrew build logs for llvm on macOS 10.14
	Build date: 2018-10-05 22:26:11