[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-04-17。"],[[["AlloyDB for PostgreSQL ensures high availability by utilizing an active and a standby node for each regional primary instance, located in separate zones."],["Fault injection can be used to test AlloyDB's high availability feature by abruptly forcing the primary instance's active node offline."],["Upon detecting an active node failure, AlloyDB automatically promotes the standby node to the active role and then later brings the former active node back online as the new standby."],["To perform a fault injection for HA testing, use the `gcloud alloydb instances inject-fault` command, specifying instance, region, cluster, and project IDs."],["Basic instances are not applicable for fault injection testing due to the absence of a standby node for failover."]]],[]]