google-cloud-platformhbasedistributed-systemgoogle-cloud-bigtablebigtable

GCP Bigtable : Availability within a zone


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.


Solution

  • 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%

    Cloud Bigtable Service Level Agreement (SLA)