Проблема: необходимо распределить трафик между несколькими TCP-серверами.
Решение: в книге "Nginx Cookbook: Advanced Recipes for High-performance Load Balancing" автор показывает использование модуля stream для балансировки нагрузки на уровне транспортного слоя.
Пример кода:
stream { upstream mysql_read { server read1.example.com:3306 weight=5; server read2.example.com:3306; server 10.10.12.34:3306 backup; }
server { listen 3306; proxy_pass mysql_read; } }
Преимущества:
— Поддержка балансировки для TCP-сервисов. — Гибкая настройка весов серверов. — Резервирование серверов для повышения надёжности.
Проблема: необходимо распределить трафик между несколькими TCP-серверами.
Решение: в книге "Nginx Cookbook: Advanced Recipes for High-performance Load Balancing" автор показывает использование модуля stream для балансировки нагрузки на уровне транспортного слоя.
Пример кода:
stream { upstream mysql_read { server read1.example.com:3306 weight=5; server read2.example.com:3306; server 10.10.12.34:3306 backup; }
server { listen 3306; proxy_pass mysql_read; } }
Преимущества:
— Поддержка балансировки для TCP-сервисов. — Гибкая настройка весов серверов. — Резервирование серверов для повышения надёжности.
If riding a bucking bronco is your idea of fun, you’re going to love what the stock market has in store. Consider this past week’s ride a preview.The week’s action didn’t look like much, if you didn’t know better. The Dow Jones Industrial Average rose 213.12 points or 0.6%, while the S&P 500 advanced 0.5%, and the Nasdaq Composite ended little changed.
Telegram auto-delete message, expiring invites, and more
elegram is updating its messaging app with options for auto-deleting messages, expiring invite links, and new unlimited groups, the company shared in a blog post. Much like Signal, Telegram received a burst of new users in the confusion over WhatsApp’s privacy policy and now the company is adopting features that were already part of its competitors’ apps, features which offer more security and privacy. Auto-deleting messages were already possible in Telegram’s encrypted Secret Chats, but this new update for iOS and Android adds the option to make messages disappear in any kind of chat. Auto-delete can be enabled inside of chats, and set to delete either 24 hours or seven days after messages are sent. Auto-delete won’t remove every message though; if a message was sent before the feature was turned on, it’ll stick around. Telegram’s competitors have had similar features: WhatsApp introduced a feature in 2020 and Signal has had disappearing messages since at least 2016.
