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mysql多实例的配置和管理

分类： Mysql/postgreSQL

2013-04-07 11:20:08

原文地址：mysql多实例的配置和管理 作者：飞鸿无痕

多实例mysql的安装和管理

mysql的多实例有两种方式可以实现，两种方式各有利弊。
第一种是使用多个配置文件启动不同的进程来实现多实例，这种方式的优势逻辑简单，配置简单，缺点是管理起来不太方便。
第二种是通过官方自带的mysqld_multi使用单独的配置文件来实现多实例，这种方式定制每个实例的配置不太方面，优点是管理起来很方便，集中管理。

下面就分别来实战这两种多实例的安装和管理

先来学习第一种使用多个配置文件启动多个不同进程的情况：

环境介绍：

mysql 版本：5.1.50

操作系统：SUSE 11

mysql实例数：3个

实例占用端口分别为：3306、3307、3308

创建mysql用户

点击(此处)折叠或打开

  1. /usr/sbin/groupadd mysql
  2. /usr/sbin/useradd -g mysql mysql
编译安装mysql

点击(此处)折叠或打开

  1. tar xzvf mysql-5.1.50.tar.gz
  2. cd mysql-5.1.50
  3. ./configure '--prefix=/usr/local/mysql' '--with-charset=utf8' '--with-extra-charsets=complex' '--with-pthread' '--enable-thread-safe-client' '--with-ssl' '--with-client-ldflags=-all-static' '--with-mysqld-ldflags=-all-static' '--with-plugins=partition,innobase,blackhole,myisam,innodb_plugin,heap,archive' '--enable-shared' '--enable-assembler'
  4. make
  5. make install
初始化数据库

点击(此处)折叠或打开

  1. /usr/local/mysql/bin/mysql_install_db --basedir=/usr/local/mysql --datadir=/data/dbdata_3306 --user=mysql
  2. /usr/local/mysql/bin/mysql_install_db --basedir=/usr/local/mysql --datadir=/data/dbdata_3307 --user=mysql
  3. /usr/local/mysql/bin/mysql_install_db --basedir=/usr/local/mysql --datadir=/data/dbdata_3308 --user=mysql
创建配置文件
vim /data/dbdata_3306/my.cnf
3306的配置文件如下：

点击(此处)折叠或打开

  1. [client]
  2. port = 3306
  3. socket = /data/dbdata_3306/mysql.sock
  4. [mysqld]
  5. datadir=/data/dbdata_3306/
  6. skip-name-resolve
  7. lower_case_table_names=1
  8. innodb_file_per_table=1
  9. port = 3306
  10. socket = /data/dbdata_3306/mysql.sock
  11. back_log = 50
  12. max_connections = 300
  13. max_connect_errors = 1000
  14. table_open_cache = 2048
  15. max_allowed_packet = 16M
  16. binlog_cache_size = 2M
  17. max_heap_table_size = 64M
  18. sort_buffer_size = 2M
  19. join_buffer_size = 2M
  20. thread_cache_size = 64
  21. thread_concurrency = 8
  22. query_cache_size = 64M
  23. query_cache_limit = 2M
  24. ft_min_word_len = 4
  25. default-storage-engine = innodb
  26. thread_stack = 192K
  27. transaction_isolation = REPEATABLE-READ
  28. tmp_table_size = 64M
  29. log-bin=mysql-bin
  30. binlog_format=mixed
  31. slow_query_log
  32. long_query_time = 1
  33. server-id = 1
  34. key_buffer_size = 8M
  35. read_buffer_size = 2M
  36. read_rnd_buffer_size = 2M
  37. bulk_insert_buffer_size = 64M
  38. myisam_sort_buffer_size = 128M
  39. myisam_max_sort_file_size = 10G
  40. myisam_repair_threads = 1
  41. myisam_recover
  42. innodb_additional_mem_pool_size = 16M
  43. innodb_buffer_pool_size = 200M
  44. innodb_data_file_path = ibdata1:10M:autoextend
  45. innodb_file_io_threads = 8
  46. innodb_thread_concurrency = 16
  47. innodb_flush_log_at_trx_commit = 1
  48. innodb_log_buffer_size = 16M
  49. innodb_log_file_size = 512M
  50. innodb_log_files_in_group = 3
  51. innodb_max_dirty_pages_pct = 60
  52. innodb_lock_wait_timeout = 120
  53. [mysqldump]
  54. quick
  55. max_allowed_packet = 256M
  56. [mysql]
  57. no-auto-rehash
  58. prompt=\\u@\\d \\R:\\m>
  59. [myisamchk]
  60. key_buffer_size = 512M
  61. sort_buffer_size = 512M
  62. read_buffer = 8M
  63. write_buffer = 8M
  64. [mysqlhotcopy]
  65. interactive-timeout
  66. [mysqld_safe]
  67. open-files-limit = 8192
vim /data/dbdata_3307/my.cnf
3307的配置文件如下：

点击(此处)折叠或打开

  1. [client]
  2. port = 3307
  3. socket = /data/dbdata_3307/mysql.sock
  4. [mysqld]
  5. datadir=/data/dbdata_3307/
  6. skip-name-resolve
  7. lower_case_table_names=1
  8. innodb_file_per_table=1
  9. port = 3307
  10. socket = /data/dbdata_3307/mysql.sock
  11. back_log = 50
  12. max_connections = 300
  13. max_connect_errors = 1000
  14. table_open_cache = 2048
  15. max_allowed_packet = 16M
  16. binlog_cache_size = 2M
  17. max_heap_table_size = 64M
  18. sort_buffer_size = 2M
  19. join_buffer_size = 2M
  20. thread_cache_size = 64
  21. thread_concurrency = 8
  22. query_cache_size = 64M
  23. query_cache_limit = 2M
  24. ft_min_word_len = 4
  25. default-storage-engine = innodb
  26. thread_stack = 192K
  27. transaction_isolation = REPEATABLE-READ
  28. tmp_table_size = 64M
  29. log-bin=mysql-bin
  30. binlog_format=mixed
  31. slow_query_log
  32. long_query_time = 1
  33. server-id = 1
  34. key_buffer_size = 8M
  35. read_buffer_size = 2M
  36. read_rnd_buffer_size = 2M
  37. bulk_insert_buffer_size = 64M
  38. myisam_sort_buffer_size = 128M
  39. myisam_max_sort_file_size = 10G
  40. myisam_repair_threads = 1
  41. myisam_recover
  42. innodb_additional_mem_pool_size = 16M
  43. innodb_buffer_pool_size = 200M
  44. innodb_data_file_path = ibdata1:10M:autoextend
  45. innodb_file_io_threads = 8
  46. innodb_thread_concurrency = 16
  47. innodb_flush_log_at_trx_commit = 1
  48. innodb_log_buffer_size = 16M
  49. innodb_log_file_size = 512M
  50. innodb_log_files_in_group = 3
  51. innodb_max_dirty_pages_pct = 60
  52. innodb_lock_wait_timeout = 120
  53. [mysqldump]
  54. quick
  55. max_allowed_packet = 256M
  56. [mysql]
  57. no-auto-rehash
  58. prompt=\\u@\\d \\R:\\m>
  59. [myisamchk]
  60. key_buffer_size = 512M
  61. sort_buffer_size = 512M
  62. read_buffer = 8M
  63. write_buffer = 8M
  64. [mysqlhotcopy]
  65. interactive-timeout
  66. [mysqld_safe]
  67. open-files-limit = 8192
vim /data/dbdata_3308/my.cnf
3308的配置文件如下：

点击(此处)折叠或打开

  1. [client]
  2. port = 3308
  3. socket = /data/dbdata_3308/mysql.sock
  4. [mysqld]
  5. datadir=/data/dbdata_3308/
  6. skip-name-resolve
  7. lower_case_table_names=1
  8. innodb_file_per_table=1
  9. port = 3308
  10. socket = /data/dbdata_3308/mysql.sock
  11. back_log = 50
  12. max_connections = 300
  13. max_connect_errors = 1000
  14. table_open_cache = 2048
  15. max_allowed_packet = 16M
  16. binlog_cache_size = 2M
  17. max_heap_table_size = 64M
  18. sort_buffer_size = 2M
  19. join_buffer_size = 2M
  20. thread_cache_size = 64
  21. thread_concurrency = 8
  22. query_cache_size = 64M
  23. query_cache_limit = 2M
  24. ft_min_word_len = 4
  25. default-storage-engine = innodb
  26. thread_stack = 192K
  27. transaction_isolation = REPEATABLE-READ
  28. tmp_table_size = 64M
  29. log-bin=mysql-bin
  30. binlog_format=mixed
  31. slow_query_log
  32. long_query_time = 1
  33. server-id = 1
  34. key_buffer_size = 8M
  35. read_buffer_size = 2M
  36. read_rnd_buffer_size = 2M
  37. bulk_insert_buffer_size = 64M
  38. myisam_sort_buffer_size = 128M
  39. myisam_max_sort_file_size = 10G
  40. myisam_repair_threads = 1
  41. myisam_recover
  42. innodb_additional_mem_pool_size = 16M
  43. innodb_buffer_pool_size = 200M
  44. innodb_data_file_path = ibdata1:10M:autoextend
  45. innodb_file_io_threads = 8
  46. innodb_thread_concurrency = 16
  47. innodb_flush_log_at_trx_commit = 1
  48. innodb_log_buffer_size = 16M
  49. innodb_log_file_size = 512M
  50. innodb_log_files_in_group = 3
  51. innodb_max_dirty_pages_pct = 60
  52. innodb_lock_wait_timeout = 120
  53. [mysqldump]
  54. quick
  55. max_allowed_packet = 256M
  56. [mysql]
  57. no-auto-rehash
  58. prompt=\\u@\\d \\R:\\m>
  59. [myisamchk]
  60. key_buffer_size = 512M
  61. sort_buffer_size = 512M
  62. read_buffer = 8M
  63. write_buffer = 8M
  64. [mysqlhotcopy]
  65. interactive-timeout
  66. [mysqld_safe]
  67. open-files-limit = 8192

创建自动启动文件
vim /data/dbdata_3306/mysqld
3306的启动文件如下：

点击(此处)折叠或打开

  1. #!/bin/bash
  2. mysql_port=3306
  3. mysql_username="admin"
  4. mysql_password="password"
  6. function_start_mysql()
  7. {
  8. printf "Starting MySQL...\n"
  9. /bin/sh /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/dbdata_${mysql_port}/my.cnf 2>&1 > /dev/null &
  10. }
  12. function_stop_mysql()
  13. {
  14. printf "Stoping MySQL...\n"
  15. /usr/local/mysql/bin/mysqladmin -u ${mysql_username} -p${mysql_password} -S /data/dbdata_${mysql_port}/mysql.sock shutdown
  16. }
  18. function_restart_mysql()
  19. {
  20. printf "Restarting MySQL...\n"
  21. function_stop_mysql
  22. function_start_mysql
  23. }
  25. function_kill_mysql()
  26. {
  27. kill -9 $(ps -ef | grep 'bin/mysqld_safe' | grep ${mysql_port} | awk '{printf $2}')
  28. kill -9 $(ps -ef | grep 'libexec/mysqld' | grep ${mysql_port} | awk '{printf $2}')
  29. }
  31. case $1 in
  32. start)
  33. function_start_mysql;;
  34. stop)
  35. function_stop_mysql;;
  36. kill)
  37. function_kill_mysql;;
  38. restart)
  39. function_stop_mysql
  40. function_start_mysql;;
  41. *)
  42. echo "Usage: /data/dbdata_${mysql_port}/mysqld {start|stop|restart|kill}";;
  43. esac

vim /data/dbdata_3307/mysqld
3307的启动文件如下：

点击(此处)折叠或打开

  1. #!/bin/bash
  2. mysql_port=3307
  3. mysql_username="admin"
  4. mysql_password="password"
  6. function_start_mysql()
  7. {
  8. printf "Starting MySQL...\n"
  9. /bin/sh /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/dbdata_${mysql_port}/my.cnf 2>&1 > /dev/null &
  10. }
  12. function_stop_mysql()
  13. {
  14. printf "Stoping MySQL...\n"
  15. /usr/local/mysql/bin/mysqladmin -u ${mysql_username} -p${mysql_password} -S /data/dbdata_${mysql_port}/mysql.sock shutdown
  16. }
  18. function_restart_mysql()
  19. {
  20. printf "Restarting MySQL...\n"
  21. function_stop_mysql
  22. function_start_mysql
  23. }
  25. function_kill_mysql()
  26. {
  27. kill -9 $(ps -ef | grep 'bin/mysqld_safe' | grep ${mysql_port} | awk '{printf $2}')
  28. kill -9 $(ps -ef | grep 'libexec/mysqld' | grep ${mysql_port} | awk '{printf $2}')
  29. }
  31. case $1 in
  32. start)
  33. function_start_mysql;;
  34. stop)
  35. function_stop_mysql;;
  36. kill)
  37. function_kill_mysql;;
  38. restart)
  39. function_stop_mysql
  40. function_start_mysql;;
  41. *)
  42. echo "Usage: /data/dbdata_${mysql_port}/mysqld {start|stop|restart|kill}";;
  43. esac

vim /data/dbdata_3308/mysqld
3308的启动文件如下：

点击(此处)折叠或打开

  1. #!/bin/bash
  2. mysql_port=3308
  3. mysql_username="admin"
  4. mysql_password="password"
  6. function_start_mysql()
  7. {
  8. printf "Starting MySQL...\n"
  9. /bin/sh /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/dbdata_${mysql_port}/my.cnf 2>&1 > /dev/null &
  10. }
  12. function_stop_mysql()
  13. {
  14. printf "Stoping MySQL...\n"
  15. /usr/local/mysql/bin/mysqladmin -u ${mysql_username} -p${mysql_password} -S /data/dbdata_${mysql_port}/mysql.sock shutdown
  16. }
  18. function_restart_mysql()
  19. {
  20. printf "Restarting MySQL...\n"
  21. function_stop_mysql
  22. function_start_mysql
  23. }
  25. function_kill_mysql()
  26. {
  27. kill -9 $(ps -ef | grep 'bin/mysqld_safe' | grep ${mysql_port} | awk '{printf $2}')
  28. kill -9 $(ps -ef | grep 'libexec/mysqld' | grep ${mysql_port} | awk '{printf $2}')
  29. }
  31. case $1 in
  32. start)
  33. function_start_mysql;;
  34. stop)
  35. function_stop_mysql;;
  36. kill)
  37. function_kill_mysql;;
  38. restart)
  39. function_stop_mysql
  40. function_start_mysql;;
  41. *)
  42. echo "Usage: /data/dbdata_${mysql_port}/mysqld {start|stop|restart|kill}";;
  43. esac
启动3306、3307、3308的mysql

点击(此处)折叠或打开

  1. /data/dbdata_3306/mysqld start
  2. /data/dbdata_3307/mysqld start
  3. /data/dbdata_3308/mysqld start

更改原来密码（处于安全考虑，还需要删除系统中没有密码的帐号，这里省略了）：

点击(此处)折叠或打开

  1. /usr/local/mysql/bin/mysqladmin -uroot password 'password' -S /data/dbdata_3306/mysql.sock
  2. /usr/local/mysql/bin/mysqladmin -uroot password 'password' -S /data/dbdata_3307/mysql.sock
  3. /usr/local/mysql/bin/mysqladmin -uroot password 'password' -S /data/dbdata_3308/mysql.sock
登录测试并创建关闭mysql的帐号权限，mysqld脚本要用到！

点击(此处)折叠或打开

  1. /usr/local/mysql/bin/mysql -uroot -ppassword -S /data/dbdata_3308/mysql.sock
  2. GRANT SHUTDOWN ON *.* TO 'admin'@'localhost' IDENTIFIED BY 'password';
  3. flush privileges;
  4. /usr/local/mysql/bin/mysql -uroot -ppassword -S /data/dbdata_3308/mysql.sock
  5. GRANT SHUTDOWN ON *.* TO 'admin'@'localhost' IDENTIFIED BY 'password';
  6. flush privileges;
  7. /usr/local/mysql/bin/mysql -uroot -ppassword -S /data/dbdata_3308/mysql.sock
  8. GRANT SHUTDOWN ON *.* TO 'admin'@'localhost' IDENTIFIED BY 'password';
  9. flush privileges;
创建了admin帐号以后脚本的stop功能和restart功能就正常了！
更改环境变量

点击(此处)折叠或打开

  1. vim /etc/profile 添加下面一行内容
  2. PATH=${PATH}:/usr/local/mysql/bin/
  3. source /etc/profile
添加到自动启动

点击(此处)折叠或打开

  1. vim /etc/init.d/boot.local
  2. /data/dbdata_3306/mysqld start
  3. /data/dbdata_3307/mysqld start
  4. /data/dbdata_3308/mysqld start
如果是rhel或者centos系统的话自启动文件/etc/rc.local
 
管理的话，在本地都是采用 -S /data/dbdata_3308/mysql.sock，如果在远程可以通过不同的端口连接上去坐管理操作。其他的和单实例的管理没什么区别！
 
 
 
再来看第二种通过官方自带的mysqld_multi来实现多实例实战：
这里的mysql安装以及数据库的初始化和前面的步骤一样，就不再赘述。

mysqld_multi的配置
vim /etc/my.cnf

点击(此处)折叠或打开

  1. [mysqld_multi]
  2. mysqld = /usr/local/mysql/bin/mysqld_safe
  3. mysqladmin = /usr/local/mysql/bin/mysqladmin
  4. user = admin
  5. password = password
  7. [mysqld1]
  8. socket = /data/dbdata_3306/mysql.sock
  9. port = 3306
  10. pid-file = /data/dbdata_3306/3306.pid
  11. datadir = /data/dbdata_3306
  12. user = mysql
  13. skip-name-resolve
  14. lower_case_table_names=1
  15. innodb_file_per_table=1
  16. back_log = 50
  17. max_connections = 300
  18. max_connect_errors = 1000
  19. table_open_cache = 2048
  20. max_allowed_packet = 16M
  21. binlog_cache_size = 2M
  22. max_heap_table_size = 64M
  23. sort_buffer_size = 2M
  24. join_buffer_size = 2M
  25. thread_cache_size = 64
  26. thread_concurrency = 8
  27. query_cache_size = 64M
  28. query_cache_limit = 2M
  29. ft_min_word_len = 4
  30. default-storage-engine = innodb
  31. thread_stack = 192K
  32. transaction_isolation = REPEATABLE-READ
  33. tmp_table_size = 64M
  34. log-bin=mysql-bin
  35. binlog_format=mixed
  36. slow_query_log
  37. long_query_time = 1
  38. server-id = 1
  39. key_buffer_size = 8M
  40. read_buffer_size = 2M
  41. read_rnd_buffer_size = 2M
  42. bulk_insert_buffer_size = 64M
  43. myisam_sort_buffer_size = 128M
  44. myisam_max_sort_file_size = 10G
  45. myisam_repair_threads = 1
  46. myisam_recover
  47. innodb_additional_mem_pool_size = 16M
  48. innodb_buffer_pool_size = 200M
  49. innodb_data_file_path = ibdata1:10M:autoextend
  50. innodb_file_io_threads = 8
  51. innodb_thread_concurrency = 16
  52. innodb_flush_log_at_trx_commit = 1
  53. innodb_log_buffer_size = 16M
  54. innodb_log_file_size = 512M
  55. innodb_log_files_in_group = 3
  56. innodb_max_dirty_pages_pct = 60
  57. innodb_lock_wait_timeout = 120
  60. [mysqld2]
  61. socket = /data/dbdata_3307/mysql.sock
  62. port = 3307
  63. pid-file = /data/dbdata_3307/3307.pid
  64. datadir = /data/dbdata_3307
  65. user = mysql
  66. skip-name-resolve
  67. lower_case_table_names=1
  68. innodb_file_per_table=1
  69. back_log = 50
  70. max_connections = 300
  71. max_connect_errors = 1000
  72. table_open_cache = 2048
  73. max_allowed_packet = 16M
  74. binlog_cache_size = 2M
  75. max_heap_table_size = 64M
  76. sort_buffer_size = 2M
  77. join_buffer_size = 2M
  78. thread_cache_size = 64
  79. thread_concurrency = 8
  80. query_cache_size = 64M
  81. query_cache_limit = 2M
  82. ft_min_word_len = 4
  83. default-storage-engine = innodb
  84. thread_stack = 192K
  85. transaction_isolation = REPEATABLE-READ
  86. tmp_table_size = 64M
  87. log-bin=mysql-bin
  88. binlog_format=mixed
  89. slow_query_log
  90. long_query_time = 1
  91. server-id = 1
  92. key_buffer_size = 8M
  93. read_buffer_size = 2M
  94. read_rnd_buffer_size = 2M
  95. bulk_insert_buffer_size = 64M
  96. myisam_sort_buffer_size = 128M
  97. myisam_max_sort_file_size = 10G
  98. myisam_repair_threads = 1
  99. myisam_recover
  100. innodb_additional_mem_pool_size = 16M
  101. innodb_buffer_pool_size = 200M
  102. innodb_data_file_path = ibdata1:10M:autoextend
  103. innodb_file_io_threads = 8
  104. innodb_thread_concurrency = 16
  105. innodb_flush_log_at_trx_commit = 1
  106. innodb_log_buffer_size = 16M
  107. innodb_log_file_size = 512M
  108. innodb_log_files_in_group = 3
  109. innodb_max_dirty_pages_pct = 60
  110. innodb_lock_wait_timeout = 120
  113. [mysqld3]
  114. socket = /data/dbdata_3308/mysql.sock
  115. port = 3308
  116. pid-file = /data/dbdata_3308/3308.pid
  117. datadir = /data/dbdata_3308
  118. user = mysql
  119. skip-name-resolve
  120. lower_case_table_names=1
  121. innodb_file_per_table=1
  122. back_log = 50
  123. max_connections = 300
  124. max_connect_errors = 1000
  125. table_open_cache = 2048
  126. max_allowed_packet = 16M
  127. binlog_cache_size = 2M
  128. max_heap_table_size = 64M
  129. sort_buffer_size = 2M
  130. join_buffer_size = 2M
  131. thread_cache_size = 64
  132. thread_concurrency = 8
  133. query_cache_size = 64M
  134. query_cache_limit = 2M
  135. ft_min_word_len = 4
  136. default-storage-engine = innodb
  137. thread_stack = 192K
  138. transaction_isolation = REPEATABLE-READ
  139. tmp_table_size = 64M
  140. log-bin=mysql-bin
  141. binlog_format=mixed
  142. slow_query_log
  143. long_query_time = 1
  144. server-id = 1
  145. key_buffer_size = 8M
  146. read_buffer_size = 2M
  147. read_rnd_buffer_size = 2M
  148. bulk_insert_buffer_size = 64M
  149. myisam_sort_buffer_size = 128M
  150. myisam_max_sort_file_size = 10G
  151. myisam_repair_threads = 1
  152. myisam_recover
  153. innodb_additional_mem_pool_size = 16M
  154. innodb_buffer_pool_size = 200M
  155. innodb_data_file_path = ibdata1:10M:autoextend
  156. innodb_file_io_threads = 8
  157. innodb_thread_concurrency = 16
  158. innodb_flush_log_at_trx_commit = 1
  159. innodb_log_buffer_size = 16M
  160. innodb_log_file_size = 512M
  161. innodb_log_files_in_group = 3
  162. innodb_max_dirty_pages_pct = 60
  163. innodb_lock_wait_timeout = 120
  166. [mysqldump]
  167. quick
  168. max_allowed_packet = 256M
  169. [mysql]
  170. no-auto-rehash
  171. prompt=\\u@\\d \\R:\\m>
  172. [myisamchk]
  173. key_buffer_size = 512M
  174. sort_buffer_size = 512M
  175. read_buffer = 8M
  176. write_buffer = 8M
  177. [mysqlhotcopy]
  178. interactive-timeout
  179. [mysqld_safe]
  180. open-files-limit = 8192
mysqld_multi启动

点击(此处)折叠或打开

  1. /usr/local/mysql/bin/mysqld_multi start 1
  2. /usr/local/mysql/bin/mysqld_multi start 2
  3. /usr/local/mysql/bin/mysqld_multi start 3
或者采用一条命令的形式：

点击(此处)折叠或打开

  1. /usr/local/mysql/bin/mysqld_multi start 1-3
更改原来密码（处于安全考虑，还需要删除系统中没有密码的帐号，这里省略了）：

点击(此处)折叠或打开

  1. /usr/local/mysql/bin/mysqladmin -uroot password 'password' -S /data/dbdata_3306/mysql.sock
  2. /usr/local/mysql/bin/mysqladmin -uroot password 'password' -S /data/dbdata_3307/mysql.sock
  3. /usr/local/mysql/bin/mysqladmin -uroot password 'password' -S /data/dbdata_3308/mysql.sock
 
登录测试并创建admin密码(停止mysql的时候需要使用到)

点击(此处)折叠或打开

  1. /usr/local/mysql/bin/mysql -uroot -ppassword -S /data/dbdata_3308/mysql.sock
  2. GRANT SHUTDOWN ON *.* TO 'admin'@'localhost' IDENTIFIED BY 'password';
  3. flush privileges;
  4. /usr/local/mysql/bin/mysql -uroot -ppassword -S /data/dbdata_3308/mysql.sock
  5. GRANT SHUTDOWN ON *.* TO 'admin'@'localhost' IDENTIFIED BY 'password';
  6. flush privileges;
  7. /usr/local/mysql/bin/mysql -uroot -ppassword -S /data/dbdata_3308/mysql.sock
  8. GRANT SHUTDOWN ON *.* TO 'admin'@'localhost' IDENTIFIED BY 'password';
  9. flush privileges;
更改环境变量

点击(此处)折叠或打开

  1. vim /etc/profile
  2. PATH=${PATH}:/usr/local/mysql/bin/
  3. source /etc/profile
添加到自动启动

点击(此处)折叠或打开

  1. vim /etc/init.d/boot.local
  2. /usr/local/mysql/bin/mysqld_multi start 1-3
如果是rhel或者centos系统的话自启动文件/etc/rc.local
 
管理的话，在本地都是采用 -S /data/dbdata_3308/mysql.sock，如果在远程可以通过不同的端口连接上去坐管理操作。其他的和单实例的管理没什么区别！
大家在管理多实例的话可以使用mysqlmanager实例管理器，管理器来会比较方面，限于篇幅，这里就不在多做介绍！

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