vivo 移动互联网业务为全球超过 4 亿用户提供应用商店、短视频、广告等服务，其分布式消息中间件 平台承担了实时数据接入与分发的关键角色，日均处理数据量达十万亿级别。面对业务规模的持续增 长，vivo 在消息系统架构演进中通过引入 Apache Pulsar，有效解决了原有 Kafka 架构在多集群管理、 弹性扩缩容和海量分区场景下面临的诸多瓶颈。 业务痛点与挑战 随着 vivo 业务流量的数十倍增长，原有基于 Kafka 的消息系统逐渐显露出架构局限性。Topic 和分区数 量的持续增加严重影响了集群性能，大量分区导致磁盘随机读写加剧，违背了 Kafka 依赖顺序读写实现 高性能的设计初衷。集群规模扩张后，资源组隔离与集群拆分的运维成本显著上升，且 Kafka 无法实现 动态扩缩容，机器资源利用率低。在面对突发流量时，扩容速度缓慢，流量均衡耗时较长，消费端性能 过度依赖分区数量，造成元数据急剧膨胀。此外，集群基数增大导致硬件故障频发，且故障直接传导至 客户端，缺乏有效的中间容错层。 技术选型 滴滴大数据团队于 2021 年 1 月开始调研 Apache Pulsar，同年 8 月正式上线首个 Pulsar ...

Group 1 - The European Commission plans to inquire about major tech companies like Apple, Google, Microsoft, and Booking.com regarding their measures to prevent online financial fraud [1][2] - Henna Virkkunen, the European Commission's technology affairs chief, stated that financial fraud has become a new priority for the Commission, aiming to ensure that tech companies are doing their utmost to detect and prevent fraudulent activities [2] - The inquiry will focus on how Apple and Google manage fake applications in their app stores, how Google and Microsoft handle false search results, and how Booking.com addresses fake property listings [2] Group 2 - The European Commission is currently requesting information but may proceed with investigations and impose fines, with the Digital Services Act allowing fines up to 6% of a company's global annual revenue [2]

每经记者｜宋欣悦 每经编辑｜段炼 兰素英 ① 【三大期指齐涨】截至发稿，道指期货涨0.20%、标普500指数期货涨0.52%、纳指期货涨1.12%。 ② 【中概股普涨】中概股盘前普涨，阿里巴巴涨2.91%，拼多多涨2.21%，网易涨4.6%，京东涨1.28%，携程涨3.67%，百度涨1.91%，理想汽车涨3.63%。 ③ 【微软加大力度抢夺AI人才，瞄准Meta多个团队】据媒体报道，微软已经确定了最受欢迎的Meta AI工程师，并正在实施一项新的、竞争激烈的招聘流 程。这一举措旨在与Meta丰厚的薪酬方案相匹配，包括数百万美元的签约奖金，以吸引和留住精英人工智能人才。 ④ 【瑞银：看空美国经济、美元和美股】8月13日，瑞银在最新研报中展现出罕见的"坚定看空"立场，对美国经济、美元和美股同时发出警示。瑞银预 测，美国四季度的GDP增速将从二季度的2.0%急剧放缓至0.9%，远低于市场预期。美元方面，瑞银维持长期熊市观点。美股方面，该行则警告估值过 高、科技股集中度及关税影响被低估等风险。 ⑥ 【Webtoon娱乐公司盘前涨超40%】韩国互联网巨头Naver旗下的Webtoon娱乐公司盘前涨超40%。消息面上，该 ...

Group 1 - The core viewpoint is that Apple is expected to receive approval from the EU antitrust authority regarding its app store fees and rules, potentially avoiding daily fines [1] Group 2 - The approval would allow Apple to continue its current business practices without facing penalties [1] - This development highlights the ongoing scrutiny of major tech companies by regulatory bodies in Europe [1] - The outcome may set a precedent for how app store policies are regulated in the future [1]

Core Viewpoint - Apple is expected to receive approval from the EU antitrust authority regarding its app store fees and rules, which will help the company avoid daily fines. A decision is anticipated in the coming weeks [1] Group 1 - Apple is likely to gain approval from the EU for its app store practices [1] - The approval will assist Apple in avoiding potential daily fines [1] - A decision from the EU is expected within the next few weeks [1]

Core Insights - Apple has modified its App Store rules in the European Union to comply with antitrust orders [1] Group 1 - The changes in the App Store rules are a direct response to regulatory pressures from the European Union [1]

Core Viewpoint - Apple is preparing to adjust its App Store to appease EU antitrust regulators and potentially avoid further fines related to the Digital Markets Act (DMA) [1] Group 1: Regulatory Adjustments - Apple plans to propose changes by June 26 to make it easier for third-party developers to direct users outside of Apple's ecosystem for software purchases [1] - This commitment follows weeks of tense discussions with EU regulators and aims to address alleged violations of the DMA [1] Group 2: Potential Consequences - If Apple fails to submit the proposals by the deadline, the European Commission will prepare a formal charge against the company [1] - In April, both Apple and Meta were found to have violated the DMA, leading to significant regulatory scrutiny [1]

Core Viewpoint - Apple is preparing to adjust its App Store to avoid further fines from the European Union, which issued a deadline on June 26 for compliance with the Digital Markets Act (DMA) [1] Group 1 - The European Union has issued a final ultimatum to Apple regarding compliance with the DMA [1] - The adjustments to the App Store are aimed at preventing additional penalties from the EU [1]

Core Viewpoint - Apple is preparing to adjust its App Store policies to avoid incurring further fines from the European Union [1] Group 1 - The adjustments are a response to regulatory pressures from the EU [1] - The company aims to enhance compliance with EU regulations to mitigate financial penalties [1]

智通财经6月23日电，苹果预计将在应用商店谈判中向欧盟做出让步。 ...