Data Consistency in Distributed system - CAP, PACELC and more

A trilogy about Data Consistency and how to workaround the CAP and PACELC theorems:


1. First issues with multi-region and multi-cloud software scalability
2. Solutions to have enough Consistency without sacrificing Availability and Latency
3. Theoretical arguments on the nature of CAP/PACELC problem and why you cannot find a better solution than the above one




Dear reader, please leave a message if you exist! ;) 
Also, please share this article if you find it interesting.

Thank you.

Comments

Post a Comment

Popular posts from this blog

Linux Ubuntu 19.04 full install on USB stick - fix UEFI/Grub

Image
Even better reads: Data Consistency in Distributed System - CAP, PACELC My  Secular Philosophy - Life, God, Knowledge, Morality, Ethics This blog is mainly focused on my Philosophical and theoretical ideas. From time to time I have practical posts that are too few to deserve a blog by themselves. I still hope my other work (like above) is even more valuable than such practical article as below. * * * This article explains how to install Ubuntu 19.04 or similar on USB+UEFI, like you would do it on a hard drive. Regular USB install will likely fail, you need the fix below. Ubuntu installer has a bug when installing on USB using a PC that already has an UEFI boot system (like Windows 10). Such thumb-drive is not only persistent, you can also do regular updates on it, customize the programs, repair the file-system. This is more than just a live "USB Pen Drive Linux" with persistence, it is your full Linux system in your pocket. Only (U)EFI boot is covered here, but most recen...
Read more

Bose QuietComfort 15 / 25 / QC35 / QC45 vs Sennheiser MM 550-X

Image
  Better read: Data Consistency in Distributed System - CAP, PACELC Morality series - a heptalogy This blog is mainly focused on my Philosophical and theoretical ideas. From time to time I have practical posts that are too few to deserve a blog by themselves. I still hope my other work (like above) is even more valuable than such practical article as below. * * *     Update 2022: Bose QC45 is almost the same as Bose QC35 II , however it has USB-C charging. Note that Bose QC 45 does not have NFC anymore - used for fast Bluetooth connection.   Updates 2020 :  Bose QC35 II (2) is basically identical as sound, look and feel to the original QC 35. The only adding is a button that can be used to activate Google Assistant or alternatively to change the noise cancelling level. Bose QC35 (1 or 2) remains the best noise cancelling headphones that I ever tried, especially because of the ear comfort and ergonomy, along with long battery life. Another big advantag...
Read more

Why Bitcoin will fail

Image
This is not about a specific flaw in Bitcoin, however Bitcoin is a preeminent exponent of the crypto-currency galaxy. Any cryptocurrency that don't have a sufficient loan base have these problems. Bitcoin, especially, looks more and more like a Ponzi scheme that is just ready to blow. Only that there will be no Charles Ponzi to sue, only a lot of people that lost money and a few winners that sold the bitcoins before the bang. Or, with another metaphor, Bitcoin is like a global poker game where some will take the pot and the others will bite the dust. It may happen tomorrow or after years, but for me this is the only reasonable end. Until then, everybody believes they have a very good hand... Here are my arguments: No loans, no value
Read more