В статье объясняется, почему Spring Data JPA может тормозить: рассматриваются причины вроде open-in-view, ленивой инициализации, неправильной настройки DataSource и медленных JOIN-ов.
Автор на примерах показывает, как выявить проблемные места и оптимизировать конфигурацию, чтобы избавиться от неожиданных лагов и блокировок.
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BY Java Developer
The global forecast for the Asian markets is murky following recent volatility, with crude oil prices providing support in what has been an otherwise tough month. The European markets were down and the U.S. bourses were mixed and flat and the Asian markets figure to split the difference.The TSE finished modestly lower on Friday following losses from the financial shares and property stocks.For the day, the index sank 15.09 points or 0.49 percent to finish at 3,061.35 after trading between 3,057.84 and 3,089.78. Volume was 1.39 billion shares worth 1.30 billion Singapore dollars. There were 285 decliners and 184 gainers.
Secret Chats are one of the service’s additional security features; it allows messages to be sent with client-to-client encryption. This setup means that, unlike regular messages, these secret messages can only be accessed from the device’s that initiated and accepted the chat. Additionally, Telegram notes that secret chats leave no trace on the company’s services and offer a self-destruct timer.
telegram from tr