英文:
GCP Bigtable : Availability within a zone
问题
背景
我计划在我的一个项目中使用GCP的Bigtable（BT）服务。这是一个不是非常关键的用例，因此我正在探索单个集群设置（成本因素）。
问题
Bigtable的区域内高可用性（HA）保证是什么？
我可以接受在区域级别发生的任何中断（相对较少的事件，对我的用例是可接受的）。我担心的是，在临时维护过程中，如果单台机器发生故障，是否会导致Bigtable中断。
附注：Google只允许在可用性区域内有一个大表集群（每个BT实例）。这使我更加相信在区域内应该有一些HA保证，但我没有找到相关文档。
英文:
Background
I am planning to use GCP's Bigtable (BT) offering for one of my projects.
This is a NOT_SO_CRITICAL use-case, hence i am exploring a single cluster setup (COST factor).
Question
What are the intra-zone High Availability (HA) gurantees for Bigtable ?
I am ok for any outages which occur at the zone level (relatively rare event, acceptable for my use-case). Concern for me is BT causing outages incase of single machine going down as part of ad-hoc maintenance.
PS : Google only allows a single big-table cluster (per BT instance) within an availability zone. This makes me believe even more that there would be some HA guarantees within a zone, but not getting any documentation around this.
答案1
得分: 1
云 Bigtable - 区域实例（单一集群）的区域内高可用性（HA）保障为 >= 99.9%。
英文:
> What are the intra-zone High Availability (HA) gurantees for Bigtable
> ?
The Covered Service will provide a Monthly Uptime Percentage to Customer as follows (the "Service Level Objective" or "SLO"):
> Cloud Bigtable - Zonal instance (single cluster) >= 99.9%
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