tidb-cdc创建任务报错 Unknown or incorrect time zone

一、报错详情

fail to open MySQL connection: [CDC:ErrMySQLConnectionError]Error 1298: Unknown or incorrect time zone: 'Asia/Shanghai'

二、排查

# 登陆tidb,查看时区
show variables like '%time_zone%';
+------------------+---------------+
| Variable_name    | Value         |
+------------------+---------------+
| system_time_zone | Asia/Shanghai |
| time_zone        | SYSTEM        |
+------------------+---------------+
# 登陆mysql,查看时区
show variables like '%time_zone%';
+------------------+--------+
| Variable_name    | Value  |
+------------------+--------+
| system_time_zone | CST    |
| time_zone        | SYSTEM |
+------------------+--------+

这里可以发现上游tidb的时区为Asia/Shanghai，而下游mysql的时区为CST

三、解决办法

办法一、加载时区

mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root mysql -p

办法二、将sink写上下游时区

cdc cli changefeed create --sink-uri="mysql://user:[email protected]_ip:mysql_port/?time-zone=CST" --pd=http://pd_ip:pd_port

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