1、先測試看數據庫的大小
SELECT TABLE_SCHEMA, CONCAT(TRUNCATE(SUM(data_length)/1024/1024,2),' MB') AS data_size,
CONCAT(TRUNCATE(SUM(index_length)/1024/1024,2),'MB') AS index_size
FROM information_schema.tables
GROUP BY TABLE_SCHEMA
ORDER BY data_length desc;
發現數據庫,並不大!
2、先導出原來的數據庫數據結構及數據
mysqldump -h localhost -uroot -p123456 database > dump.sql
3、導入本地的數據庫,報錯
MySQL server has gone away,或者“Variable 'time_zone' can't be set to the value of 'NULL'”
mysql> show global variables like 'max_allowed_packet';
+--------------------+----------+
| Variable_name | Value |
+--------------------+----------+
| max_allowed_packet | 16777216 |
+--------------------+----------+
1 row in set (0.04 sec)
mysql> set global max_allowed_packet=1024*1024*160;
Query OK, 0 rows affected (0.00 sec)
mysql> show global variables like 'max_allowed_packet';
+--------------------+-----------+
| Variable_name | Value |
+--------------------+-----------+
| max_allowed_packet | 167772160 |
+--------------------+-----------+
1 row in set (0.05 sec)