my.cnf改变datadir，2天仍然没有运气 [英] my.cnf changing datadir, 2days and still no luck
问题描述
您好，我一直在尝试这个几个小时，这个论坛是我最后的手段
在谷歌搜索数百页。
Hi i have been trying this for hours upon hours, this forum is my last resort sfter googling hundreds of pages.
问题：
对不起长度，但我提供了我尝试的细节
PROBLEM: Sorry for the length but i am supplying in detail of what i have tried
我设置了mysql和它的工作正常，我现在需要更改数据存储指向我的外部高清。
I have set up mysql and its working fine, i now need to change the data-storage to point at my External HD.
使用mac osx没有默认my.cnf所以我复制
my-huge.cnf从/usr/local/mysql-5.1.53-osx10 .6-x86 / support-files，现在如果它有任何赔率我也有一个'mysql'文件夹在本地也。
With mac osx there is no default my.cnf so i copied my-huge.cnf from /usr/local/mysql-5.1.53-osx10.6-x86/support-files, now if it makes any odds i also have a 'mysql' folder in local also.
当我将my-huge.cnf放置到/ etc中时将其重命名为
i将其重命名为my.cnf如指示，
它正常工作如果我不添加一个datadir字段看起来像这样
datadir = / Volumes / Elements /数据库，
i也使用
将我的旧数据复制到我的新位置sudo cp -R -p / var / lib / mysql / Volumes / Elements / database
when i place and rename my-huge.cnf into /etc
i renamed it to my.cnf like instructed,
it works as normal if i dont add a datadir field which looks like this
datadir= /Volumes/Elements/database,
i have also copied my old data to my new location using
sudo cp -R -p /var/lib/mysql /Volumes/Elements/database
除非我添加字段 datadir = / Volumes / Elements / database
my.cnf文件，如果我得到错误
Everything workds fine unless i add the field datadir = /Volumes/Elements/database
to the my.cnf file, if i do i get the error
错误2002（HY000）：无法通过套接字连接到本地MySQL服务器'/var/lib/mysql/mysql.sock'（2）
my.cnf文件类似于以下
my.cnf file looks like the following
Macintosh-100:support-files seanf$ cd /etc
Macintosh-100:etc seanf$ sudo nano my.cnf
Password:
Macintosh-100:etc seanf$ nano my.cnf
Macintosh-100:etc seanf$ my.cnf > /Desktop/blah.txt
-bash: /Desktop/blah.txt: No such file or directory
Macintosh-100:etc seanf$ my.cnf < /Desktop/blah.txt
-bash: /Desktop/blah.txt: No such file or directory
Macintosh-100:etc seanf$ nano my.cnf
GNU nano 2.0.6文件：my.cnf
GNU nano 2.0.6 File: my.cnf
# Example MySQL config file for very large systems.
#
# This is for a large system with memory of 1G-2G where the system runs mainly
# MySQL.
#
# You can copy this file to
# /etc/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options (in this
# installation this directory is /usr/local/mysql/data) or
# ~/.my.cnf to set user-specific options.
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.
# The following options will be passed to all MySQL clients
[client]
#password = your_password
port = 3306
socket = /tmp/mysql.sock
# Here follows entries for some specific programs
# The MySQL server
[mysqld]l
datadir = /Volumes/Elements/database
port = 3306
socket = /tmp/mysql.sock
skip-locking
key_buffer_size = 384M
等....
我希望有人能说明这一点， 2天试图得到这个工作在我的外部
I hope someone can shed light on this, i have an assignment due and have spent 2 days trying to get this working on my external
即使当mysql工作，我键入mysqld我得到错误，如果这是一个问题？
Also even when mysql is working and i type mysqld i get errors if this is an issue?
Macintosh-100:lib s$ mysqld
101201 13:31:13 [Warning] '--skip-locking' is deprecated and will be removed in a future >release. Please use '--skip-external-locking' instead.
101201 13:31:13 [Warning] Can't create test file /usr/local/mysql-5.1.53-osx10.6-x86/data>/Macintosh-100.lower-test
101201 13:31:13 [Warning] Can't create test file /usr/local/mysql-5.1.53-osx10.6-x86/data>/Macintosh-100.lower-test
mysqld: Can't change dir to '/usr/local/mysql-5.1.53-osx10.6-x86/data/' (Errcode: 13)
101201 13:31:13 [ERROR] Aborting
101201 13:31:13 [Note] mysqld: Shutdown complete
Macintosh-100:lib s$
$ b感谢您的时间我希望专家能回答这个
Thanks for your time i hope an expert can answer this
推荐答案
虽然我没有使用 datadir 属性播放，但我已将数据存储位置更改为外部高清，方法是将默认位置安装到它，如下所示：
Though I haven't played with datadir property but I've changed data storage location to the external HD by mounting default location to it as follows:
- 备份目前的资料目录
- 删除资料目录中的所有资料
-
mount / var / lib / mysql / data / dev / XXX）
- Backup your current data directory
- Delete everything from your data directory
- Mount it to your external HD (
mount /var/lib/mysql/data /dev/XXX)
我在Ubuntu服务器上做了。当更改InnoDB特定的目录时，我注意到，一个人必须小心权利（ubuntu的情况下，apparmord）。当mysql无法执行一些文件系统操作时，我发现它的错误消息非常误导。有时，它是非常有帮助的研究它的error.log（/var/log/mysql/error.log在我的情况）。
I've done it at Ubuntu Server. When changing InnoDB specific directories I've noticed that one have to be careful with rights (apparmord in case of ubuntu). When mysql cannot perform some filesystem operation I find its error messages very misleading. Sometimes it is really helpful to study it's error.log (/var/log/mysql/error.log in my case).
希望这有助于您解决您的问题ASAP。
Hope this helps you to resolve your issue ASAP.
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