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:
ADMIN SHOW REPLICA STATUS FROM [db_name.]tbl_name [PARTITION (p1, ...)]
[where_clause];
where_clause:
WHERE STATUS [!]= "replica_status"
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
ADMIN SHOW REPLICA STATUS FROM db1.tbl1;
2. 查看表某个分区状态为 VERSION_ERROR 的副本
ADMIN SHOW REPLICA STATUS FROM tbl1 PARTITION (p1, p2)
WHERE STATUS = "VERSION_ERROR";
3. 查看表所有状态不健康的副本
ADMIN SHOW REPLICA STATUS FROM tbl1
WHERE STATUS != "OK";
keyword
ADMIN,SHOW,REPLICA,STATUS