The Fusioninsight HD management node provides a dual-machine HA mechanism. After the master node fails, the master and backup nodes need to implement…

The statement is incorrect. The Huawei FusionInsight HD management plane is designed with a high-availability (HA) architecture that features automatic failover. The management nodes operate in an active/standby (or master/backup) configuration. The system continuously monitors the health of the active management node using a heartbeat mechanism. If the active node fails or becomes unresponsive, the HA system automatically promotes the standby node to the active role and transfers services to it. This process is designed to be transparent and requires no manual intervention, ensuring service continuity and minimizing downtime.

The statement is false because it explicitly claims that the failover process must be implemented manually. This contradicts the fundamental design principle of the FusionInsight HD management node HA mechanism, which is to automate the recovery from a master node failure to guarantee high availability. While a manual switchover can be performed for maintenance purposes, the failover in response to an unexpected failure is automatic.

1. Huawei FusionInsight HD 6.5.1 Administrator Guide, Section: "High Availability," Subsection: "Management Node HA." The guide details the active/standby deployment of management nodes (OMS). It explains that a floating IP address is used for external access and that in the event of an active node failure, the system automatically switches services and the floating IP to the standby node.

2. Huawei FusionInsight HD Product Documentation, Section: "Technical White Paper," Chapter: "System Architecture," Subsection: "Reliability." This document outlines the reliability design of FusionInsight, specifying that key management components are deployed in an active/standby cluster mode to enable automatic failover and ensure business continuity without manual intervention.

3. Huawei FusionInsight HD Feature Description, Section: "High Reliability." This document describes the HA features of the platform, explicitly mentioning that the management and control plane supports active/standby redundancy and automatic failover to handle single points of failure.