The failover mode when a user initiates a failover on a
reservation determines how writes that arepending replication
are handled after the failover is initiated.
Enums
Name
Description
FAILOVER_MODE_UNSPECIFIED
Invalid value.
SOFT
When customers initiate a soft failover, BigQuery will wait until all committed writes are replicated to the secondary. This mode requires both regions to be available for the failover to succeed and prevents data loss.
HARD
When customers initiate a hard failover, BigQuery will not wait until all committed writes are replicated to the secondary. There can be data loss for hard failover.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-09 UTC."],[],[],null,[]]
