CANCEL-ALTER-SYSTEM

CANCEL-ALTER-SYSTEM

Name

CANCEL DECOMMISSION

Description

该语句用于撤销一个节点下线操作。（仅管理员使用！）

语法：

• 通过 host 和 port 查找 backend

CANCEL DECOMMISSION BACKEND "host:heartbeat_port"[,"host:heartbeat_port"...];

• 通过 backend_id 查找 backend

CANCEL DECOMMISSION BACKEND "id1","id2","id3...";

Example

1. 取消两个节点的下线操作：

    CANCEL DECOMMISSION BACKEND "host1:port", "host2:port";

2. 取消 backend_id 为 1 的节点的下线操作：

   CANCEL DECOMMISSION BACKEND "1","2";

Keywords

CANCEL, DECOMMISSION, CANCEL ALTER

Best Practice