相关疑难解决方法(0)

MySql服务器启动错误'服务器退出而不更新PID文件'

在Snow Leopard上,启动MySQL会出现以下错误:

服务器退出而不更新PID文件

my.cnf中

[mysqld]
port            = 3306

socket          = /tmp/mysql.sock

skip-external-locking

key_buffer_size = 16K

pid-file=/var/run/mysqld/mysqld.pid

[mysqld_safe]

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid
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mysql

273
推荐指数
22
解决办法
55万
查看次数

尝试使用mysql2 gem安装应用程序时出错

我试图安装一个使用mysql2gem的开源rails 3.2.21应用程序,但是当我尝试运行bundlecommant时,我收到以下错误:

Fetching: mysql2-0.3.18.gem (100%)
Building native extensions.  This could take a while...
p
ERROR:  Error installing mysql2:
    ERROR: Failed to build gem native extension.

    /Users/my_username/.rvm/rubies/ruby-2.1.2/bin/ruby -r ./siteconf20150614-72129-orqsb7.rb extconf.rb
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
-----
Using mysql_config at /usr/local/bin/mysql_config
-----
checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
-----
Don't know …
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ruby mysql ruby-on-rails mysql2 ruby-on-rails-4

64
推荐指数
9
解决办法
2万
查看次数

为什么我不能在Ruby On Rails上安装mysql2?

我不知道如何安装mysql2.

我正在使用:

  • Ruby On Rails 3.2.14
  • Ruby 2.0.0
  • Mac OS X 10.9("小牛队")

Installing mysql2 (0.3.13) 

An error occurred while installing mysql2 (0.3.13), and Bundler cannot continue.
Make sure that `gem install mysql2 -v '0.3.13'` succeeds before bundling.

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb 

*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.


Gem files …
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ruby ruby-on-rails mysql2

2
推荐指数
1
解决办法
3246
查看次数

标签 统计

mysql ×2

mysql2 ×2

ruby ×2

ruby-on-rails ×2

ruby-on-rails-4 ×1