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Статья о том, как GitHub борется с отстающими репликами MySQL. Для решения этой проблемы они создали распределённый масштабируемый сервис, throttle'ящий запросы к базе. Подробнее о подходе читайте в статье: https://githubengineering.com/mitigating-replication-lag-and-reducing-read-load-with-freno/

#github #mysql #throttling

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Статья о том, как GitHub борется с отстающими репликами MySQL. Для решения этой проблемы они создали распределённый масштабируемый сервис, throttle'ящий запросы к базе. Подробнее о подходе читайте в статье: https://githubengineering.com/mitigating-replication-lag-and-reducing-read-load-with-freno/

#github #mysql #throttling
GitHub Engineering
Mitigating replication lag and reducing read load with freno
At GitHub, we use MySQL as the main database technology backing our services. We run classic MySQL master-replica setups, where writes go to the master, and replicas replay master’s changes asynchronously. To be able to serve our traffic we read data from…
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Unlimited members in Telegram group now

Telegram has made it easier for its users to communicate, as it has introduced a feature that allows more than 200,000 users in a group chat. However, if the users in a group chat move past 200,000, it changes into "Broadcast Group", but the feature comes with a restriction. Groups with close to 200k members can be converted to a Broadcast Group that allows unlimited members. Only admins can post in Broadcast Groups, but everyone can read along and participate in group Voice Chats," Telegram added.

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