Question

TIDB_SERVERS_INFO 表提供了 TiDB 集群中 TiDB 服务器的信息（即 tidb-server 进程）。

USE information_schema;
DESC tidb_servers_info;

+---------------+-------------+------+------+---------+-------+
| Field         | Type        | Null | Key  | Default | Extra |
+---------------+-------------+------+------+---------+-------+
| DDL_ID        | varchar(64) | YES  |      | NULL    |       |
| IP            | varchar(64) | YES  |      | NULL    |       |
| PORT          | bigint(21)  | YES  |      | NULL    |       |
| STATUS_PORT   | bigint(21)  | YES  |      | NULL    |       |
| LEASE         | varchar(64) | YES  |      | NULL    |       |
| VERSION       | varchar(64) | YES  |      | NULL    |       |
| GIT_HASH      | varchar(64) | YES  |      | NULL    |       |
| BINLOG_STATUS | varchar(64) | YES  |      | NULL    |       |
+---------------+-------------+------+------+---------+-------+
8 rows in set (0.00 sec)

SELECT * FROM tidb_servers_info\G

*************************** 1. row ***************************
       DDL_ID: 771c169d-0a3a-48ea-a93c-a4d6751d3674
           IP: 0.0.0.0
         PORT: 4000
  STATUS_PORT: 10080
        LEASE: 45s
      VERSION: 5.7.25-TiDB-v4.0.0-beta.2-720-g0df3b74f5
     GIT_HASH: 0df3b74f55f8f8fbde39bbd5d471783f49dc10f7
BINLOG_STATUS: Off
1 row in set (0.00 sec)