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分享100分求助，数据库连接问题
在CentOS7上，装的 MySQL5.6.25
之前用过一段时间，现在发现有问题，应用程序无法访问数据库
后用 Putty 登录 CentOS，在命令行下访问我的数据库，初始连接成功，但是只要一切换到我的数据库，就说连接丢失，真是无语了
[root@localhost test]# mysql -uroot -proot
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.25 MySQL Community Server (GPL)
Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> use ChargeStation;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> select * from tbUser;
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id: 2
Current database: ChargeStation
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)
ERROR:
Can't connect to the server
mysql> exit
Bye
[root@localhost test]#
之前用过一段时间，现在发现有问题，应用程序无法访问数据库
后用 Putty 登录 CentOS，在命令行下访问我的数据库，初始连接成功，但是只要一切换到我的数据库，就说连接丢失，真是无语了
[root@localhost test]# mysql -uroot -proot
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.25 MySQL Community Server (GPL)
Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> use ChargeStation;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> select * from tbUser;
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id: 2
Current database: ChargeStation
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)
ERROR:
Can't connect to the server
mysql> exit
Bye
[root@localhost test]#
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小灰狼 2016-01-29
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没有人吗？
自己顶一下
小灰狼 2016-01-29
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没有人吗？
我把那个表的文件复制下来了，能够还原吗？
小灰狼 2016-01-28
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这些都设置过了，没有效果
今天中午连饭都没吃，呆在办公室里
发现线索，应该是一个表被损坏了。
用 putty 登录CentOS后，进其它的数据库是可以的，但就是进不了我的那个数据库。在Windows下用 Navicat 可以访问那个数据库，但只要一访问那个表就出错。
之前想通过navicat 或 sqldump 导出数据库都会失败，但是导出时如果避开那个表和有关的视图，就会成功
那是一个带分区的 InnoDB 表，按 CreatedDateTime 进行 Range 分区。现在别的数据都导出来了，并且恢复到新建的数据库中，但是那个表中的数据怎么整出来啊？
LongRui888 2016-01-28
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再次连接呢，是不是还是哪个错误。
你试试这个;
打开mysql配置文件my.ini(linux为my.cnf)，添加或修改max_allowed_packet参数：
# server max allewed packet
max_allowed_packet=100M
另外，为了避免等待时间超时，可以将以下两个参数设置大点：
interactive_timeout=28800000
wait_timeout=28800000
