ADMIN-SHOW-REPLICA-STATUS

Name

ADMIN SHOW REPLICA STATUS

Description

该语句用于展示一个表或分区的副本状态信息。

语法:

  1. ADMIN SHOW REPLICA STATUS FROM [db_name.]tbl_name [PARTITION (p1, ...)]
  2. [where_clause];

说明

  1. where_clause: WHERE STATUS [!]\= “replica_status”

  2. replica_status: OK: replica 处于健康状态 DEAD: replica 所在 Backend 不可用 VERSION_ERROR: replica 数据版本有缺失 SCHEMA_ERROR: replica 的 schema hash 不正确 MISSING: replica 不存在

Example

  1. 查看表全部的副本状态

    1. ADMIN SHOW REPLICA STATUS FROM db1.tbl1;
  2. 查看表某个分区状态为 VERSION_ERROR 的副本

    1. ADMIN SHOW REPLICA STATUS FROM tbl1 PARTITION (p1, p2)
    2. WHERE STATUS = "VERSION_ERROR";
  3. 查看表所有状态不健康的副本

    1. ADMIN SHOW REPLICA STATUS FROM tbl1
    2. WHERE STATUS != "OK";

Keywords

  1. ADMIN, SHOW, REPLICA, STATUS, ADMIN SHOW

Best Practice