1. At most once (не более одного раза): Сообщение может быть потеряно, но никогда не будет доставлено повторно. 2. At least once (как минимум один раз): Сообщение доставляется минимум один раз, но возможно повторное получение. 3. Exactly once (ровно один раз): Сообщение доставляется и обрабатывается строго один раз. Это наиболее надёжная гарантия, достигается с помощью механизма идемпотентности продюсера и транзакций.
Примечание: Гарантия зависит от настроек продюсера, консюмера и брокера Kafka.
1. At most once (не более одного раза): Сообщение может быть потеряно, но никогда не будет доставлено повторно. 2. At least once (как минимум один раз): Сообщение доставляется минимум один раз, но возможно повторное получение. 3. Exactly once (ровно один раз): Сообщение доставляется и обрабатывается строго один раз. Это наиболее надёжная гарантия, достигается с помощью механизма идемпотентности продюсера и транзакций.
Примечание: Гарантия зависит от настроек продюсера, консюмера и брокера Kafka.
BY Java Developer
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This ability to mix the public and the private, as well as the ability to use bots to engage with users has proved to be problematic. In early 2021, a database selling phone numbers pulled from Facebook was selling numbers for $20 per lookup. Similarly, security researchers found a network of deepfake bots on the platform that were generating images of people submitted by users to create non-consensual imagery, some of which involved children. "We as Ukrainians believe that the truth is on our side, whether it's truth that you're proclaiming about the war and everything else, why would you want to hide it?," he said. Markets continued to grapple with the economic and corporate earnings implications relating to the Russia-Ukraine conflict. “We have a ton of uncertainty right now,” said Stephanie Link, chief investment strategist and portfolio manager at Hightower Advisors. “We’re dealing with a war, we’re dealing with inflation. We don’t know what it means to earnings.” At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion. And indeed, volatility has been a hallmark of the market environment so far in 2022, with the S&P 500 still down more than 10% for the year-to-date after first sliding into a correction last month. The CBOE Volatility Index, or VIX, has held at a lofty level of more than 30.
from jp
