一步完成 MySQL 向 Redis 迁移

Posted 2020-06-20

参考国外大牛的方法，http://www.oschina.net/translate/mysql-to-redis-in-one-step

实验成功，以下是操作方法：

mysql表结构数据

[test]> select * from hechunyang; +----+--------+---------+ | id | myname | mymoney | +----+--------+---------+ |  1 | aa     |    1000 | |  2 | bb     |    2000 | +----+--------+---------+ 2 rows in set (0.00 sec)

编辑迁移SQL脚本

cat mysql_to_redis.sql SELECT CONCAT(    "*4\r\n",    ‘$‘, LENGTH(redis_cmd), ‘\r\n‘,    redis_cmd, ‘\r\n‘,    ‘$‘, LENGTH(redis_key), ‘\r\n‘,    redis_key, ‘\r\n‘,    ‘$‘, LENGTH(hkey), ‘\r\n‘,    hkey, ‘\r\n‘,    ‘$‘, LENGTH(hval), ‘\r\n‘,    hval, ‘\r‘  )  FROM (    SELECT    ‘HSET‘ AS redis_cmd,    ‘keyname‘ AS redis_key,    myname AS hkey,    mymoney AS hval    FROM hechunyang  ) AS t;

一步完成 MySQL 向 Redis 迁移

mysql test --skip-column-names --raw < mysql_to_redis.sql | redis-cli --pipe All data transferred. Waiting for the last reply... Last reply received from server. errors: 0, replies: 2

Redis查看数据
127.0.0.1:6379> keys *
1) "keyname"
127.0.0.1:6379> hkeys keyname
1) "aa"
2) "bb"
127.0.0.1:6379> hget keyname aa
"1000"
127.0.0.1:6379> hget keyname bb
"2000"

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