mysql版本8.0.11和Symfony 4错误"MySQL服务器已经消失"

Question

mysql版本8.0.11和Symfony 4错误"MySQL服务器已经消失"

我正在使用Symfony 4和Mysql版本是8.0.11并使用用户而不是root登录,当我尝试使用该命令时,php bin/console make:migration我收到此错误:

In AbstractMySQLDriver.php line 126:                                                                                 
An exception occurred in driver: SQLSTATE[HY000] [2006] MySQL server has gone away                                                                                

In PDOConnection.php line 50:                                           
SQLSTATE[HY000] [2006] MySQL server has gone away  

In PDOConnection.php line 46:                                                
SQLSTATE[HY000] [2006] MySQL server has gone away  

In PDOConnection.php line 46: 
PDO::__construct(): Unexpected server respose while doing caching_sha2 auth: 109

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然后我试着在网上搜索,我发现,出事了与MySQL变量wait_timeout和max_allowed_packet,不得不更改文件的变量/etc/mysql/my.cnf,但问题是,当我去那个文件我只能找到此编辑:

# Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2.0,
# as published by the Free Software Foundation.
#
# This program is also distributed with certain software (including
# but not limited to OpenSSL) that is licensed under separate terms,
# as designated in a particular file or component or in included license
# documentation.  The authors of MySQL hereby grant you an additional
# permission to link the program and your derivative works with the
# separately licensed software that they have included with MySQL.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License, version 2.0, for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
#
# The MySQL  Server configuration file.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
# * IMPORTANT: Additional settings that can override those from this file!
#   The files must end with '.cnf', otherwise they'll be ignored.
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mysql.conf.d/

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所以我试图看到一个名为" 为什么是/etc/mysql/my.cnf EMPTY？ " 的线程,并且用户说要使用以下路径之一:

/etc/mysql/conf.d/
/etc/mysql/mysql.conf.d/
/etc/mysql/mysql.conf.d/mysqld.cnf

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所以我试过...... /etc/mysql/conf.d/:

## Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2.0,
# as published by the Free Software Foundation.
#
# This program is also distributed with certain software (including
# but not limited to OpenSSL) that is licensed under separate terms,
# as designated in a particular file or component or in included license
# documentation.  The authors of MySQL hereby grant you an additional
# permission to link the program and your derivative works with the
# separately licensed software that they have included with MySQL.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License, version 2.0, for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA

#
# The MySQL  Client configuration file.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html

[mysql]

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在文件中/etc/mysql/mysql.conf.d/:

# Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2.0,
# as published by the Free Software Foundation.
#
# This program is also distributed with certain software (including
# but not limited to OpenSSL) that is licensed under separate terms,
# as designated in a particular file or component or in included license
# documentation.  The authors of MySQL hereby grant you an additional
# permission to link the program and your derivative works with the
# separately licensed software that they have included with MySQL.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License, version 2.0, for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA

#
# The MySQL  Server configuration file.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html

[mysqld]
pid-file        = /var/run/mysqld/mysqld.pid
socket          = /var/run/mysqld/mysqld.sock
datadir         = /var/lib/mysql
log-error       = /var/log/mysql/error.log

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并在文件中/etc/mysql/mysql.conf.d/mysqld.cnf:

# Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2.0,
# as published by the Free Software Foundation.
#
# This program is also distributed with certain software (including
# but not limited to OpenSSL) that is licensed under separate terms,
# as designated in a particular file or component or in included license
# documentation.  The authors of MySQL hereby grant you an additional
# permission to link the program and your derivative works with the
# separately licensed software that they have included with MySQL.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License, version 2.0, for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA

#
# The MySQL  Server configuration file.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html

[mysqld]
pid-file        = /var/run/mysqld/mysqld.pid
socket          = /var/run/mysqld/mysqld.sock
datadir         = /var/lib/mysql
log-error       = /var/log/mysql/error.log

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在这些文件,我没能找到MySQL的变量wait_timeout和max_allowed_packet,所以先感谢如果有人可以帮助我解决这个问题.:)

PS :(我已经php bin/console make:migration在此错误之前多次运行此命令,并且还创建了数据库并且运行正常,因此它似乎不是安装问题).

更新:它似乎成功地更改了两个变量wait_timeout并max_allowed_packet通过向以下三个文件添加全局

max_allowed_packet=1024M 
wait_timeout=3000000

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然后使用此命令sudo service mysql restart
给我这个:

mysql> SHOW global VARIABLES LIKE "wait_timeout";
+---------------+---------+
| Variable_name | Value   |
+---------------+---------+
| wait_timeout  | 3000000 |
+---------------+---------+
1 row in set (0,00 sec)

mysql> SHOW VARIABLES like 'max_allowed_packet';
+--------------------+------------+
| Variable_name      | Value      |
+--------------------+------------+
| max_allowed_packet | 1073741824 |
+--------------------+------------+
1 row in set (0,00 sec)

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但仍然当我尝试使用此命令php bin/console make:migration它给了我同样的错误已经在上面提到这个帖子,也试图wait_timeout通过相同的方法将变量更改为300,它给了我相同的结果.:(

使用此命令sudo vim /var/log/mysql/error.log我得到这个:

2018-07-29T18:55:18.382164Z 0 [Warning] [MY-010909] [Server] /usr/sbin/mysqld: Forcing close of thread 8  user: 'alexandre'.
2018-07-29T18:55:20.288756Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.11)  MySQL Community Server - GPL.
2018-07-29T18:55:20.642118Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.11) starting as process 31833
2018-07-29T18:55:21.704556Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed.
2018-07-29T18:55:21.720385Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.11'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  MySQL Community Server - GPL.

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更新: 我已经取消了mysql和php并更改为mysql 5.7和php 7.2.7,php更改可能已解决了根据用户@jibe的链接,如果有人仍然无法解决问题我让这两个其他链接链接1 和link2.

更新对于有问题的用户:名为@Ganesh的用户也提供了此解决方案:ALTER USERusername@localhostIDENTIFIED WITH caching_sha2_password BY'password';

要么

ALTER USER 'username'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';

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我希望它有所帮助:D

Answer 1

sar*_*Don 2

在 mysql 配置文件（在 CentOS 中，etc/my.conf）中添加以下行：

default_authentication_plugin=mysql_native_password

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这成功了。希望能帮助到你。

我的环境：

操作系统7
PHP 7.2
MySQL 8

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