Category Archives: Sh*ts

The Infrastructure Behind Twitter: Scale

Big Data, Sh*ts, ,

 

  • Hadoop: We have multiple clusters storing over 500 PB divided in four groups (real time, processing, data warehouse and cold storage). Our biggest cluster is over 10k nodes. We run 150k applications and launch 130M containers per day.

  • Manhattan(the backend for Tweets, Direct Messages, Twitter accounts, and more): We run several clusters for different use cases such as large multi tenant, smaller for non common, read only, and read/write for heavy write/heavy read traffic patterns. The read/only cluster handles 10s of millions QPS whereas a read/write cluster handles millions of QPS. The highest performance cluster, our observability cluster, which ingests in every datacenter, handles over tens of million writes.

  • Graph: Our legacy Gizzard/MySQL based sharded cluster for storing our graphs. Flock, our social graph, can manage peaks over tens of million QPS, averaging our MySQL servers to 30k – 45k QPS.

  • Blobstore: Our image, video and large file store where we store hundreds of billions objects.

  • Cache: Our Redis and Memcache clusters: caching our users, timelines, tweets and more.

  • SQL: This includes MySQL, PostgreSQL and Vertica. MySQL/PosgreSQL are used where we need strong consistency, managing ads campaign, ads exchange as well as internal tools. Vertica is a column store often used as a backend for Tableau supporting sales and user organisations.

 

https://blog.twitter.com/engineering/en_us/topics/infrastructure/2017/the-infrastructure-behind-twitter-scale.html

Soundcloud changed their streaming format from 128kbps MP3 to 64kbps Opus

Sh*ts

 

Soundcloud recently changed their streaming format from 128kbps MP3 to 64kbps Opus. This drastically reduces the audio quality and can introduce strange artifacts. I made & released a Chrome Extension to restore the 128kbps MP3s. Give it a try.

https://chrome.google.com/webstore/detail/soundcloud-quality-restor/llhggdgjolganlijhnocpbjfmdomanlc?hl=en

 

Source: https://genius.com/a/did-soundcloud-actually-cut-its-audio-quality-in-half

XEvil 4.0 – break almost any anti-botnet CAPTCHA’s

Sh*ts

This message is posted here using XRumer + XEvil 4.0

XEvil 4.0 is a revolutionary application that can break almost any anti-botnet CAPTCHA’s.
Captcha Bypass Google (ReCaptcha-1, ReCaptcha-2), Facebook, BING, Hotmail, Yahoo,
Yandex, VKontakte, Captcha Com – and over 8.4 million other types!

You read this – it means it works! 😉
Details on the official website of XEvil.Net, there is a free demo version.

Check YouTube video “XEvil ReCaptcha2”

magento – update

Sh*ts 
composer require magento/product-community-edition 2.1.10 --no-update

composer update
rm -rf var/di var/generation
php bin/magento cache:flush
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento indexer:reindex