mysql从服恢复记录 Error reading packet from server: File '/var/lib/mysql/mysql-bin.006150' not found (

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日志：

150410 13:17:41 [ERROR] Error reading packet from server: File '/var/lib/mysql/mysql-bin.006150' not found (Errcode: 13) ( server_errno=29)

150410 13:17:41 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.006150' at position 30041
150410 13:17:41 [ERROR] Error reading packet from server: File '/var/lib/mysql/mysql-bin.006150' not found (Errcode: 13) ( server_errno=29)
150410 13:18:41 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.006150' at position 30041

解决方法：将主库的备份文件 mysql-bin.00615 以及之后的还原到主服务器 /var/lib/mysql/ 注意修改拥有人为 mysql：mysql 否则会报错：

150410 13:09:58 [ERROR] Failed to open log (file '/var/lib/mysql/mysql-bin.006150', errno 2)

通过查看系统日志和 mysql 的日志推测从服mysql 不同步的原因可能是重启防火墙，从服宕的时间跟从其防火墙的时间差几秒。。

未测试：

修改主从服务器的 max_allowed_packet 参数
主从服务器默认为1M，可根据实际情况修改其大小。

mysql> show variables like 'max_allowed_packet';

+--------------------+---------+

| Variable_name | Value |

+--------------------+---------+

| max_allowed_packet | 1047552 |

+--------------------+---------+

1 row in set (0.00 sec)

mysql> SET @@global.max_allowed_packet=16777216;

Query OK, 0 rows affected (0.01 sec)

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