包阅导读总结
1.
关键词：Microsoft、Azure Service Bus、Geo-Replication、Disaster Recovery、Premium Tier
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总结：Microsoft 宣布 Azure Service Bus 高级层的 Geo-Replication 功能进入公共预览阶段。此功能可实现区域间的持续复制，为应用提供保护，竞争对手也有类似服务。目前该功能在部分 Azure 区域可用。
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主要内容：
– Microsoft 宣布 Azure Service Bus 高级层的 Geo-Replication 功能的公共预览
– 可将主区域的命名空间元数据和数据持续复制到辅助区域，用户可随时提升辅助区域
– 不同于现有灾难恢复功能，能复制元数据和数据，在 Azure 区域间建立弹性
– Azure Service Bus 是微软的全托管消息服务
– 能在云和本地环境中实现分布式应用和服务间的可靠安全通信
– 与竞争对手类似服务的比较
– AWS SQS 在区域内多可用区分布消息确保高可用和容错
– 谷歌 Cloud Pub/Sub 跨区域自动复制数据保证高可用和灾难恢复
– 该功能在部分 Azure 区域可用
思维导图：
文章来源：infoq.com
作者：Steef-Jan Wiggers
发布时间：2024/7/10 0:00
语言：英文
总字数：405字
预计阅读时间：2分钟
评分：84分
标签：Azure 服务总线,地域复制,灾难恢复,高级层级,云消息传递
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Microsoft recently announced the public preview of its new Geo-Replication feature in the Azure Service Bus premium tier. This feature allows continuous replication of a namespace’s metadata and data from a primary region to a secondary region, which users can promote at any time.
Azure Service Bus is Microsoft’s fully managed messaging service, enabling reliable and secure communication between distributed applications and services across cloud and on-premises environments. The new Geo-Replication feature for this service is designed to provide robust protection for Azure Service Bus applications against outages and disasters, complementing existing options such as Geo-Disaster Recovery and Availability Zones.
Unlike the existing Geo-Disaster Recovery feature, Geo-Replication replicates metadata and data. It can establish resilience between Azure regions, such as the East and West US. In addition, Availability Zones provide resilience within a specific geographic region.
Eldert Grootenboer, a seniorprogram manager on the service bus team at Microsoft, writes:
The Geo-Replication feature implements metadata and data replication in a primary-secondary replication model. It works with a single namespace, and at a given time, there’s only one primary region serving producers and consumers. A single hostname connects to the namespace, which always points to the current primary region. After promoting a secondary region, the hostname points to the new primary region, and the old primary region is demoted to the secondary region. After the new secondary has been re-initialized, it is possible to promote this region again to primary at any moment.
Service Bus Premium Geo-replication (Source: Tech community blog post)
Microsoft’s competitors offer similar messaging services with disaster recovery features. AWS Simple Queue Service (SQS) ensures high availability and fault tolerance by distributing messages across multiple availability zones within a region. This means that messages remain accessible and are not lost even if there is an outage or disaster affecting a specific data center. Similarly, Google Cloud Pub/Sub provides high availability and disaster recovery by automatically replicating data across multiple regions, ensuring that messages are reliably delivered and available even if one region experiences an outage or disaster.
Clemens Vasters, a Principal Architect for Messaging and Real-Time Analytics at Microsoft, tweeted a bold statement:
#Azure Service Bus is the most powerful transactional hyperscale queue broker in existence.
Introducing multi-region, synchronous (RPO-Zero), or asynchronous namespace replication (all messages and message states!) as insurance against region failures.
Lastly, the feature is available in the Central US EUAP, Italy North, Spain Central, and Norway East Azure regions.
