Which NDB HA control plane VM is upgraded first during an NDB upgrade?

The correct answer is B. Leader NDB API Server. During an NDB upgrade, the upgrade process follows a specific order to maintain stability and HA. The Leader NDB API Server is upgraded first. This server coordinates API requests and ensures the control plane remains operational. Upgrading the leader first minimizes…

Perform Database Administration

Question

Options

ANDB Server
BLeader NDB API Server
CLeader HAProxy
DNDB Agent VMs

How the community answered

(39 responses)

A
5% (2)
B
92% (36)
D
3% (1)

Explanation

During an NDB upgrade, the upgrade process follows a specific order to maintain stability and HA. The Leader NDB API Server is upgraded first. This server coordinates API requests and ensures the control plane remains operational. Upgrading the leader first minimizes disruption, as subsequent components (e.g., other API servers, HAProxy) rely on its leadership role. Once the leader is upgraded, the remaining NDB HA control plane VMs (e.g., follower API servers, HAProxy) are updated in sequence.

Topics

#NDB HA#upgrade order#control plane#NDB API server

Community Discussion

No community discussion yet for this question.

Full NCP-DB-6.10 Practice