tluyben

Backend as a Service

Supabase - ~52K stars

Designed explicitly as an open source firebase alternative
Typescript based
Docker support

Appwrite - ~32K stars

Written in JavaScript and PHP
Docker based
Realtime support across all services

Meltdown fix impact on Redis performances in virtualized environments

UPDATE: apparently kernel difference may have a serious impact, so I'll redo the test from scratch.

Test performed with AOF enabled, fsync policy 1 second, allowing the rewrites to be triggered.

Command lines used:

Use ffmpeg to stream video from a dahua 4300s to a file or files

You can use ffmpeg to directly pull frames off of a dahua 4300s at full resolution. May be a good alternative to pricey dvrs which likely cannot record at full resolution, may not work with the camera, or are prohibitevly expensive

Simple Stream to file

Simple stream to file. Full resolution

ffmpeg -loglevel debug -rtsp_transport tcp -i "rtsp://admin:[email protected]:554/live" \

-c copy -map 0 foo.mp4

We couldn’t find that file to show.

Importing/Indexing database (MySQL or SQL Server) in Solr using Data Import Handler

Install Solr

download and install Solr from http://lucene.apache.org/solr/.

you can access Solr admin from your browser: http://localhost:8983/solr/

use the port number used in installation.

	# ! python
	# coding: utf-8

	import os
	import argparse
	import glob

	import nbformat
	from nbconvert.preprocessors import ExecutePreprocessor
	from nbconvert.preprocessors.execute import CellExecutionError

	;;
	;; scheme coin - a common lisp blockchain
	;;
	;; Burton Samograd
	;; 2017

	(load "~/quicklisp/setup.lisp")

	(defconstant coin-name "Scheme Coin")

	module Printf

	%default total

	-- Formatting AST.
	data Format
	= FInt Format
	\| FString Format
	\| FOther Char Format
	\| FEnd

	/**
	* Crawl the sitemap.xml for 301 redirections and 404 errors.
	* Source: http://edmondscommerce.github.io/php/crawl-an-xml-sitemap-quality-check-301-and-404.html
	*
	* To use this script you need to allocate a huge amount of time to maximum_execution_time to
	* avoid Fatal error: Maximum execution time...I suggest to run this script on terminal.
	* Ex: $ php test-xml.php > ~/Desktop/sitemap-curl-result.txt
	*
	* For 3000 links the average time the script consumed is around 45 minutes to 1 hour.
	*/

	package ;

	#if macro
	import haxe.macro.Context.*;
	using haxe.macro.Tools;
	#end

	class ClassList {
	static var NAME = 'ClassList';//must be the fully qualified name of this class
	macro static function build() {