Patrick Debois jedi4ever

Some feedback on datadog log explorer:

07 Oct 2018:

the pricing is per event , all usual log saas are per GB , it is hard for me to guess how much it would cost
it is not 100% clear that when I use exclusion that it will count as an event or not
it wasn't clear that I needed the latest of the version 6 , I had latest of 5 dd-agent (took me an hour to realize)
in log explorer headers should stay on top (like a freeze row in google docs) + sidebar stays visible
in log explorer I'd like to change the column order , not just last added at the end
if I specify a metric that is in ms, why show 1 ms as 1000ns

Deep Dive - Puppeteer a Headless Chrome Node API

Ah! the joys of writing real browser tests ... Selenium and it's derived saas services are pretty slow or expensive. Not ideal for your snappy feedback loop while developing.

headless browsers like Phantomjs, Casperjs , Slimerjs fill in some gap trading speed for some compatibility. Puppeteer is the new kid on the block for automating a Chrome headless browser.

In this talk I'll:

walk you through the API using real world scenario's we used for our Platform Zender.tv
explain how to integrate it with react/jest and do parallel testing

export iPhoto to filestructur

export iPhoto https://github.com/BMorearty/exportiphoto

python exportiphoto.py -o iphoodir destdir

Organize images acording to date

exif-tool

Building chromium on OSX

See https://chromium.googlesource.com/chromium/src/+/master/docs/mac_build_instructions.md

git clone depot_tools

add to path (not using ~ but $HOME) in .bash_profile

Increase vnodes

sudo sysctl kern.maxvnodes=$((512*1024))

Analyzed

http://docs.aws.amazon.com/lambda/latest/dg/retries-on-errors.html

// Explains Dead Letter Queue + bad event handling + blocking

// You set the amount of events(batchsize) + guarantees of concurrency per shard+ plus key only active in 1 shard at the time

These are notes while researching a way to convert a browser/website to a stream. This could be used for Facebook Live or for webrecording. TL'DR:

I started with Phantomjs - but that didn't support the html5 video tag
SlimerJS supports it, but there is no way to record audio directly (though this might come from desktop audio)
So I moved to research ffmpeg/X11/XVFB to record it with linux which works
But ffmpeg has no easy way to mix streams/overlays to I moved on to OBS with overlay browser support
I started researching options OBS in docker and it needed best a GPU , so I move to nvidia-docker
And so came across building game servers on EC2/AWS using GPUs and managed to run OBS inside of GPU g2x.large machine
I tried streaming to twich , which works great and managed to restream 4K 60FPS youtube on an AWS instance
Remote control works through OBS-Remote but OBS has kinda limit in types of features

There is not a lot of doc or posts about making an headless renderer with webgl support. Here are few of my findings

I tried things on Heroku, but I was not able to make anything work.

Next, I tried EC2 t2.micro, only to find out that OpenGL needs a graphic card to execute (sure, there are things like mesa that I didn't tried, but it looked like I needed to build Chrome and I didn't want to go that way).

The only easy solution that I found was AWS EC2 GPU Instances. They are pretty much overpriced for what I'm trying to acheive, but it worked. You need to use an AMI that support the Nvidia GRID thing. eg https://aws.amazon.com/marketplace/pp/B00FYCDDTE and its CentOS.

Slimer need Firefox and Firefox need shared libraries that we need to install (we will use a custom repo).

	Topics:
	- design
	- frontend (react ~)
	- mobile app (ios/android/...)
	- VR
	- iot (alexa, arduino, ...
	- testing
	- continuous delivery (artefact, versioning,...)
	- serverless/containers/cloud
	- ai stuff


	fabric-activate: clean simulator-build
	-xcrun simctl terminate 6A6D30C8-AA08-4A55-A95A-0D5983AE33B2 $(BUNDLE_ID)
	-xcrun simctl shutdown 6A6D30C8-AA08-4A55-A95A-0D5983AE33B2
	-xcrun simctl erase 6A6D30C8-AA08-4A55-A95A-0D5983AE33B2
	-xcrun simctl boot 6A6D30C8-AA08-4A55-A95A-0D5983AE33B2
	-xcrun simctl install 6A6D30C8-AA08-4A55-A95A-0D5983AE33B2 $(XCODE_APP_FILE)
	-xcrun simctl launch 6A6D30C8-AA08-4A55-A95A-0D5983AE33B2 $(BUNDLE_ID)

	import 'babel-polyfill';
	import firstView from 'views/first';
	import * as liveReload from 'lib/liveReload';

	App.onLaunch((launchOptions) => {
	firstView();

	liveReload.connect(launchOptions);
	});