MySQL双主+keeplived安装部署说明

一、环境介绍

1.1、规划

序号

类别

版本

主机名

IP

端口

备注

1

OS

CentOS release 6.9 (Final) (minimal)

my1

172.16.210.180

8306

172.16.210.183

2

mysql

mysql-5.7.20-linux-glibc2.12-x86_64.tar.gz

my2

172.16.210.181

8306

3

keeplived

keepalived-1.2.7.tar.gz

参考资料：

http://www.cnblogs.com/276815076/p/5649539.html

mysql下载地址：

https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.20-linux-glibc2.12-x86_64.tar.gz

keeplived下载地址：

http://www.keepalived.org/software/keepalived-1.2.7.tar.gz

1.2、MySQL双主互备+keepalived高可用架构介绍

　　MySQL主从复制架构可以在很大程度保证MySQL的高可用，在一主多从的架构中还可以利用读写分离将读操作分配到从库中，减轻主库压力。但是在这种架构中，主库出现故障时需要手动将一台从库提升为主库。在对写操作要求较高的环境中，主库故障在主从架构中会成为单点故障。因此需要主主互备架构，避免主节点故障造成写操作失效。

　　在双主互备的架构中，每台MySQL都充当主服务器，同时充当对方的从服务器。在任意一台服务器上的写操作都会被复制到另一台服务器上，从而保证了数据的可靠性。

　　在双主互备的基础上加上keepalived，在其中一台机器上绑定虚拟ip（VIP）。利用vip统一对外服务，可以避免在两个节点同时写数据造成冲突。同时当keepalived主节点发生故障时，keeplived会自动将VIP切换到备节点上，从而实现主服务器的高可用。

二、安装mysql5.7

2.1、主机M1上的操作

2.1.1、安装依赖包

  1. yum  clean all
  2.  
  3. yum -y update
  4.  
  5. yum -y install gcc gcc-c++ make autoconf automake ncurses-devel bison ncurses  cmake libaio libaio-devel  boost
  6.  
  7. yum -y install gcc-c++ gd libxml2-devel libjpeg-devel libpng-devel net-snmp-devel wget telnet vim zip unzip
  8.  
  9. yum -y install curl-devel libxslt-devel pcre-devel libjpeg libpng libcurl4-openssl-dev
  10.  
  11. yum -y install libcurl-devel libcurl freetype-config freetype freetype-devel unixODBC libxslt
  12.  
  13. yum -y install gcc automake autoconf libtool openssl-devel
  14.  
  15. yum -y install perl-devel perl-ExtUtils-Embed
  16.  
  17. yum -y install cmake ncurses-devel.x86_64  openldap-devel.x86_64 lrzsz  openssh-clients gcc-g77  bison
  18.  
  19. yum -y install libmcrypt libmcrypt-devel mhash mhash-devel bzip2 bzip2-devel
  20.  
  21. yum -y install ntpdate rsync svn  patch  iptables iptables-services
  22.  
  23. yum -y install libevent libevent-devel  cyrus-sasl cyrus-sasl-devel
  24.  
  25. yum -y install gd-devel libmemcached-devel memcached git libssl-devel libyaml-devel auto make
  26.  
  27. yum -y groupinstall "Server Platform Development" "Development tools"
  28.  
  29. yum -y groupinstall "Development tools"

2.1.2、下载解压

  1. rm -rf /etc/my.cnf  
  2.  
  3. mkdir -p /opt/mysql
  4.  
  5. cd /opt/mysql/
  6.  
  7. wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.20-linux-glibc2.12-x86_64.tar.gz
  8.  
  9. tar -zxf  mysql-5.7.-linux-glibc2.-x86_64.tar.gz
  10.  
  11. cd /usr/local/
  12.  
  13. ln -s /opt/mysql/mysql-5.7.-linux-glibc2.-x86_64  mysql

2.1.3、创建所需要的目录

  1. mkdir  -p /data/mysql/mysql_8306/{data,logs,tmp}

2.1.4、更改权限

  1. groupadd mysql
  2.  
  3. useradd -g mysql mysql -d /home/mysql -s /sbin/nologin

2.1.5、创建my.cnf

  1. cat >/data/mysql/mysql_8306/my_8306.cnf <<EOF
  2.  
  3. #my.cnf
  4.  
  5. [client]
  6.  
  7. port            = 
  8.  
  9. socket          = /data/mysql/mysql_8306/tmp/mysql_8306.sock
  10.  
  11. [mysql]
  12.  
  13. #prompt="\u@\h:\p  \R:\m:\s [\d]>"
  14.  
  15. #tee=/data/mysql/mysql_8306/data/query.log
  16.  
  17. #prompt="\u@\h:\p  \R:\m:\s [\d]>"
  18.  
  19. prompt = "[\u@\h][\d]>\_"  
  20.  
  21. connect_timeout = 
  22.  
  23. no-auto-rehash
  24.  
  25. [mysqld]
  26.  
  27. #misc
  28.  
  29. user = mysql
  30.  
  31. basedir = /usr/local/mysql
  32.  
  33. datadir = /data/mysql/mysql_8306/data
  34.  
  35. port = 
  36.  
  37. socket = /data/mysql/mysql_8306/tmp/mysql_8306.sock
  38.  
  39. #timeout
  40.  
  41. interactive_timeout = 
  42.  
  43. wait_timeout = 
  44.  
  45. #character set
  46.  
  47. character-set-server = utf8
  48.  
  49. open_files_limit = 
  50.  
  51. max_connections = 
  52.  
  53. max_connect_errors = 
  54.  
  55. skip-name-resolve = 
  56.  
  57. #logs
  58.  
  59. log-output=file
  60.  
  61. slow_query_log = 
  62.  
  63. slow_query_log_file = /data/mysql/mysql_8306/logs/slow.log
  64.  
  65. log-error = /data/mysql/mysql_8306/logs/error.log
  66.  
  67. log_error_verbosity = 
  68.  
  69. pid-file = mysql.pid
  70.  
  71. long_query_time = 
  72.  
  73. #log-slow-admin-statements = 
  74.  
  75. #log-queries-not-using-indexes = 
  76.  
  77. log-slow-slave-statements = 
  78.  
  79. #tmp
  80.  
  81. tmpdir=/data/mysql/mysql_8306/tmp
  82.  
  83. event_scheduler = 
  84.  
  85. performance_schema = on
  86.  
  87. max_allowed_packet = 32M
  88.  
  89. character_set_server = utf8mb4
  90.  
  91. #character_set_server = utf8
  92.  
  93. default-time-zone = system
  94.  
  95. default-storage-engine = InnoDB
  96.  
  97. #bind_address = 172.16.151.248
  98.  
  99. explicit_defaults_for_timestamp = 
  100.  
  101. #binlog
  102.  
  103. binlog_format = row
  104.  
  105. server-id = 
  106.  
  107. log-bin = /data/mysql/mysql_8306/logs/mysql-bin
  108.  
  109. log-bin-index = /data/mysql/mysql_8306/logs/mysql-bin.index
  110.  
  111. binlog_cache_size = 4M
  112.  
  113. max_binlog_size = 1G
  114.  
  115. max_binlog_cache_size = 2G
  116.  
  117. sync_binlog = 
  118.  
  119. expire_logs_days = 
  120.  
  121. #replicate-wild-ignore-table=mysql.%
  122. replicate-wild-ignore-table=test.%
  123. replicate-wild-ignore-table=information_schema.%
  124.  
  125. #relay log
  126.  
  127. skip_slave_start = 
  128.  
  129. max_relay_log_size = 1G
  130.  
  131. relay_log_purge = 
  132.  
  133. relay_log_recovery = 
  134.  
  135. log_slave_updates
  136.  
  137. #slave-skip-errors=,,
  138.  
  139. explicit_defaults_for_timestamp=
  140.  
  141. #buffers & cache
  142.  
  143. table_open_cache = 
  144.  
  145. table_definition_cache = 
  146.  
  147. table_open_cache = 
  148.  
  149. max_heap_table_size = 96M
  150.  
  151. sort_buffer_size = 2M
  152.  
  153. join_buffer_size = 2M
  154.  
  155. thread_cache_size = 
  156.  
  157. query_cache_size = 
  158.  
  159. query_cache_type = 
  160.  
  161. query_cache_limit = 256K
  162.  
  163. query_cache_min_res_unit = 
  164.  
  165. thread_stack = 192K
  166.  
  167. tmp_table_size = 96M
  168.  
  169. key_buffer_size = 8M
  170.  
  171. read_buffer_size = 2M
  172.  
  173. read_rnd_buffer_size = 16M
  174.  
  175. bulk_insert_buffer_size = 32M
  176.  
  177. #myisam
  178.  
  179. myisam_sort_buffer_size = 128M
  180.  
  181. myisam_max_sort_file_size = 10G
  182.  
  183. myisam_repair_threads = 
  184.  
  185. #innodb
  186.  
  187. innodb_buffer_pool_size = 10G
  188.  
  189. innodb_buffer_pool_instances = 
  190.  
  191. innodb_data_file_path = ibdata1:1G:autoextend
  192.  
  193. innodb_flush_log_at_trx_commit = 
  194.  
  195. innodb_log_buffer_size = 64M
  196.  
  197. innodb_log_file_size = 500M
  198.  
  199. innodb_log_files_in_group = 
  200.  
  201. innodb_max_dirty_pages_pct = 
  202.  
  203. innodb_file_per_table = 
  204.  
  205. innodb_rollback_on_timeout
  206.  
  207. innodb_status_file = 
  208.  
  209. innodb_io_capacity = 
  210.  
  211. transaction_isolation = READ-COMMITTED
  212.  
  213. innodb_flush_method = O_DIRECT
  214.  
  215. gtid_mode = ON
  216.  
  217. enforce_gtid_consistency = ON
  218.  
  219. master_info_repository = TABLE
  220.  
  221. relay-log-info-repository = TABLE
  222.  
  223. binlog_checksum = NONE
  224.  
  225. log_slave_updates = ON
  226.  
  227. # Two-Master configure
  228.  
  229. #server-
  230.  
  231. auto-increment-offset = 
  232.  
  233. auto-increment-increment = 
  234.  
  235. #server-                          
  236.  
  237. #auto-increment-offset = 
  238.  
  239. #auto-increment-increment = 
  240.  
  241. # semi sync replication settings #
  242.  
  243. plugin_dir = /usr/local/mysql/lib/plugin #官方版本的路径
  244.  
  245. #plugin_dir = /usr/local/mysql/lib/mysql/plugin
  246.  
  247. plugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so" #官方版本的路径
  248.  
  249. #plugin_load = "validate_password.so;rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so"
  250.  
  251. loose_rpl_semi_sync_master_enabled = on     
  252.  
  253. loose_rpl_semi_sync_master_timeout =       
  254.  
  255. loose_rpl_semi_sync_master_trace_level =    
  256.  
  257. loose_rpl_semi_sync_master_wait_no_slave = on
  258.  
  259. loose_rpl_semi_sync_slave_enabled = on      
  260.  
  261. loose_rpl_semi_sync_slave_trace_level = 
  262.  
  263. loose_rpl_semi_sync_master_enabled = 
  264.  
  265. loose_rpl_semi_sync_slave_enabled = 
  266.  
  267. loose_rpl_semi_sync_master_timeout = 
  268.  
  269. loose_rpl_semi_sync_master_wait_for_slave_count=
  270.  
  271. loose_rpl_semi_sync_master_wait_point=AFTER_SYNC
  272.  
  273. slave_preserve_commit_order = 
  274.  
  275. slave_transaction_retries = 
  276.  
  277. log_timestamps = system
  278.  
  279. show_compatibility_56 = on
  280.  
  281. slave_parallel_workers = 
  282.  
  283. slave_parallel_type = LOGICAL_CLOCK
  284.  
  285. loose_innodb_numa_interleave = 
  286.  
  287. innodb_buffer_pool_dump_pct = 
  288.  
  289. innodb_page_cleaners = 
  290.  
  291. innodb_undo_log_truncate = 
  292.  
  293. innodb_max_undo_log_size = 2G
  294.  
  295. innodb_purge_rseg_truncate_frequency = 
  296.  
  297. #transaction_write_set_extraction = MURMUR32
  298.  
  299. # group replication
  300.  
  301. ##log-bin = mysql
  302.  
  303. ##server-id = 
  304.  
  305. ##gtid_mode = ON
  306.  
  307. ##enforce_gtid_consistency = ON
  308.  
  309. ##master_info_repository = TABLE
  310.  
  311. ##relay-log-info-repository = TABLE
  312.  
  313. ##binlog_checksum = NONE
  314.  
  315. ##log_slave_updates = ON
  316.  
  317. ##binlog_format = row
  318.  
  319. ##transaction_write_set_extraction=XXHASH64
  320.  
  321. ##loose-group_replication_group_name = '3db33b36-0e51-409f-a61d-c99756e90154'
  322.  
  323. ##loose-group_replication_start_on_boot = off
  324.  
  325. ##loose-group_replication_local_address= "10.125.141.62:28306"  # 不能超过5位数字
  326.  
  327. ##loose-group_replication_group_seeds= "10.125.141.62:28306,10.125.141.62:23307,10.125.141.62:23308"  # 不能超过5位数字
  328.  
  329. ##loose-group_replication_bootstrap_group= off
  330.  
  331. # loose-group_replication_single_primary_mode=FALSE   ###本次搭建的是mutil_mode
  332.  
  333. # loose-group_replication_enforce_update_everywhere_checks= TRUE
  334.  
  335. [mysqld_safe]
  336.  
  337. #malloc-lib=/usr/local/mysql/lib/jmalloc.so
  338.  
  339. nice=-
  340.  
  341. open-files-limit=
  342.  
  343. EOF

2.1.6、修改目录权限

  1. chown -R mysql.mysql /data/mysql/

2.1.7、初始化

  1. /usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql_8306/my_8306.cnf --initialize-insecure &

2.1.8、启动

  1. /usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql_8306/my_8306.cnf &

#  推荐的启动方式

  1. /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_8306/my_8306.cnf &

2.1.9、登陆方式

  1. /usr/local/mysql/bin/mysql  -uroot -p -P8306 -S /data/mysql/mysql_8306/tmp/mysql_8306.sock

或者

  1. /usr/local/mysql/bin/mysql  -P8306 -S /data/mysql/mysql_8306/tmp/mysql_8306.sock

2.1.10、创建授权修改密码

  1. set sql_log_bin = 0;
  2.  
  3. create user 'rpl_user'@'%';
  4.  
  5. grant replication slave on *.* to 'rpl_user'@'%' identified by 'rpl_user2017';
  6.  
  7. update mysql.user set authentication_string=password('root2017') where user='root';
  8.  
  9. flush privileges;
  10.  
  11. set sql_log_bin = 1;
  12.  
  13. reset  master ; reset slave all;

2.1.11、change master

  1. CHANGE MASTER TO MASTER_HOST='172.16.210.181',MASTER_USER='rpl_user',
  2.  
  3. MASTER_PASSWORD='rpl_user2017',MASTER_PORT=8306,
  4.  
  5. MASTER_CONNECT_RETRY=10,MASTER_AUTO_POSITION =1;
  6.  
  7. start slave;
  8.  
  9. show slave status\G;

2.1.12、设置快捷登陆方式

  1. [root@my1 local]# /usr/local/mysql/bin/mysql_config_editor set --host=localhost --login-path=8306_localhost_login \
  2.  
  3. > --user=root --port=  --password --socket=/data/mysql/mysql_8306/tmp/mysql_8306.sock
  4.  
  5. Enter password:
  6.  
  7. [root@my1 local]#
  8.  
  9. # 查看
  10.  
  11. /usr/local/mysql/bin/mysql_config_editor print --all
  12.  
  13. [root@my1 local]# alias mysql..login='/usr/local/mysql/bin/mysql --defaults-file=/data/mysql/mysql_8306/my_8306.cnf --login-path=8306_localhost_login'

2.1.13、快捷关闭数据库

  1. [root@my1 local]#alias mysql..stop='/usr/local/mysql/bin/mysqladmin --login-path=8306_localhost_login shutdown'

2.1.14、加入备忘录

  1. [root@my1 ~]# cat  >>/root/.bashrc <<EOF
  2.  
  3. alias mysql..start='/usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_8306/my_8306.cnf &'
  4.  
  5. alias mysql..login='/usr/local/mysql/bin/mysql --defaults-file=/data/mysql/mysql_8306/my_8306.cnf --login-path=8306_localhost_login'
  6.  
  7. alias mysql..stop='/usr/local/mysql/bin/mysqladmin --login-path=8306_localhost_login shutdown'
  8.  
  9. EOF
  10.  
  11. [root@my1 ~]# source /root/.bash_profile

2.1.15、备份脚本

  1. [root@my1 ~]# cat /root/all_database.sh
  2.  
  3. #!/bin/bash
  4.  
  5. /usr/local/mysql/bin/mysqldump --login-path=8306_localhost_login -R -E --triggers -e --max_allowed_packet= --net_buffer_length=  --master-data= --single-transaction --all-databases --quick  | gzip >/root/all_database_bak_`date +%Y-%m-%d_%H_%M_%S`.sql.gz
  6.  
  7. [root@my1 ~]#

2.2、主机M2上的操作

2.2.1、安装依赖包

  1. yum  clean all
  2.  
  3. yum -y update
  4.  
  5. yum -y install gcc gcc-c++ make autoconf automake ncurses-devel bison ncurses  cmake libaio libaio-devel  boost
  6.  
  7. yum -y install gcc-c++ gd libxml2-devel libjpeg-devel libpng-devel net-snmp-devel wget telnet vim zip unzip
  8.  
  9. yum -y install curl-devel libxslt-devel pcre-devel libjpeg libpng libcurl4-openssl-dev
  10.  
  11. yum -y install libcurl-devel libcurl freetype-config freetype freetype-devel unixODBC libxslt
  12.  
  13. yum -y install gcc automake autoconf libtool openssl-devel
  14.  
  15. yum -y install perl-devel perl-ExtUtils-Embed
  16.  
  17. yum -y install cmake ncurses-devel.x86_64  openldap-devel.x86_64 lrzsz  openssh-clients gcc-g77  bison
  18.  
  19. yum -y install libmcrypt libmcrypt-devel mhash mhash-devel bzip2 bzip2-devel
  20.  
  21. yum -y install ntpdate rsync svn  patch  iptables iptables-services
  22.  
  23. yum -y install libevent libevent-devel  cyrus-sasl cyrus-sasl-devel
  24.  
  25. yum -y install gd-devel libmemcached-devel memcached git libssl-devel libyaml-devel auto make
  26.  
  27. yum -y groupinstall "Server Platform Development" "Development tools"
  28.  
  29. yum -y groupinstall "Development tools"

2.2.2、下载安装

  1. rm -rf /etc/my.cnf  
  2.  
  3. mkdir -p /opt/mysql
  4.  
  5. cd /opt/mysql/
  6.  
  7. wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.20-linux-glibc2.12-x86_64.tar.gz
  8.  
  9. tar -zxf  mysql-5.7.-linux-glibc2.-x86_64.tar.gz
  10.  
  11. cd /usr/local/
  12.  
  13. ln -s /opt/mysql/mysql-5.7.-linux-glibc2.-x86_64  mysql

2.2.3、创建所需要的目录

  1. mkdir  -p /data/mysql/mysql_8306/{data,logs,tmp} 

2.2.4、更改权限

  1. groupadd mysql
  2.  
  3. useradd -g mysql mysql -d /home/mysql -s /sbin/nologin

2.2.5、创建my.cnf

  1. cat >/data/mysql/mysql_8306/my_8306.cnf <<EOF
  2.  
  3. #my.cnf
  4.  
  5. [client]
  6.  
  7. port            = 
  8.  
  9. socket          = /data/mysql/mysql_8306/tmp/mysql_8306.sock
  10.  
  11. [mysql]
  12.  
  13. #prompt="\u@\h:\p  \R:\m:\s [\d]>"
  14.  
  15. #tee=/data/mysql/mysql_8306/data/query.log
  16.  
  17. #prompt="\u@\h:\p  \R:\m:\s [\d]>"
  18.  
  19. prompt = "[\u@\h][\d]>\_"  
  20.  
  21. connect_timeout = 
  22.  
  23. no-auto-rehash
  24.  
  25. [mysqld]
  26.  
  27. #misc
  28.  
  29. user = mysql
  30.  
  31. basedir = /usr/local/mysql
  32.  
  33. datadir = /data/mysql/mysql_8306/data
  34.  
  35. port = 
  36.  
  37. socket = /data/mysql/mysql_8306/tmp/mysql_8306.sock
  38.  
  39. #timeout
  40.  
  41. interactive_timeout = 
  42.  
  43. wait_timeout = 
  44.  
  45. #character set
  46.  
  47. character-set-server = utf8
  48.  
  49. open_files_limit = 
  50.  
  51. max_connections = 
  52.  
  53. max_connect_errors = 
  54.  
  55. skip-name-resolve = 
  56.  
  57. #logs
  58.  
  59. log-output=file
  60.  
  61. slow_query_log = 
  62.  
  63. slow_query_log_file = /data/mysql/mysql_8306/logs/slow.log
  64.  
  65. log-error = /data/mysql/mysql_8306/logs/error.log
  66.  
  67. log_error_verbosity = 
  68.  
  69. pid-file = mysql.pid
  70.  
  71. long_query_time = 
  72.  
  73. #log-slow-admin-statements = 
  74.  
  75. #log-queries-not-using-indexes = 
  76.  
  77. log-slow-slave-statements = 
  78.  
  79. #tmp
  80.  
  81. tmpdir=/data/mysql/mysql_8306/tmp
  82.  
  83. event_scheduler = 
  84.  
  85. performance_schema = on
  86.  
  87. max_allowed_packet = 32M
  88.  
  89. character_set_server = utf8mb4
  90.  
  91. #character_set_server = utf8
  92.  
  93. default-time-zone = system
  94.  
  95. default-storage-engine = InnoDB
  96.  
  97. #bind_address = 172.16.151.248
  98.  
  99. explicit_defaults_for_timestamp = 
  100.  
  101. #binlog
  102.  
  103. binlog_format = row
  104.  
  105. server-id = 
  106.  
  107. log-bin = /data/mysql/mysql_8306/logs/mysql-bin
  108.  
  109. log-bin-index = /data/mysql/mysql_8306/logs/mysql-bin.index
  110.  
  111. binlog_cache_size = 4M
  112.  
  113. max_binlog_size = 1G
  114.  
  115. max_binlog_cache_size = 2G
  116.  
  117. sync_binlog = 
  118.  
  119. expire_logs_days = 
  120.  
  121. #replicate-wild-ignore-table=mysql.%
  122. replicate-wild-ignore-table=test.%
  123. replicate-wild-ignore-table=information_schema.%
  124.  
  125. #relay log
  126.  
  127. skip_slave_start = 
  128.  
  129. max_relay_log_size = 1G
  130.  
  131. relay_log_purge = 
  132.  
  133. relay_log_recovery = 
  134.  
  135. log_slave_updates
  136.  
  137. #slave-skip-errors=,,
  138.  
  139. explicit_defaults_for_timestamp=
  140.  
  141. #buffers & cache
  142.  
  143. table_open_cache = 
  144.  
  145. table_definition_cache = 
  146.  
  147. table_open_cache = 
  148.  
  149. max_heap_table_size = 96M
  150.  
  151. sort_buffer_size = 2M
  152.  
  153. join_buffer_size = 2M
  154.  
  155. thread_cache_size = 
  156.  
  157. query_cache_size = 
  158.  
  159. query_cache_type = 
  160.  
  161. query_cache_limit = 256K
  162.  
  163. query_cache_min_res_unit = 
  164.  
  165. thread_stack = 192K
  166.  
  167. tmp_table_size = 96M
  168.  
  169. key_buffer_size = 8M
  170.  
  171. read_buffer_size = 2M
  172.  
  173. read_rnd_buffer_size = 16M
  174.  
  175. bulk_insert_buffer_size = 32M
  176.  
  177. #myisam
  178.  
  179. myisam_sort_buffer_size = 128M
  180.  
  181. myisam_max_sort_file_size = 10G
  182.  
  183. myisam_repair_threads = 
  184.  
  185. #innodb
  186.  
  187. innodb_buffer_pool_size = 10G
  188.  
  189. innodb_buffer_pool_instances = 
  190.  
  191. innodb_data_file_path = ibdata1:1G:autoextend
  192.  
  193. innodb_flush_log_at_trx_commit = 
  194.  
  195. innodb_log_buffer_size = 64M
  196.  
  197. innodb_log_file_size = 500M
  198.  
  199. innodb_log_files_in_group = 
  200.  
  201. innodb_max_dirty_pages_pct = 
  202.  
  203. innodb_file_per_table = 
  204.  
  205. innodb_rollback_on_timeout
  206.  
  207. innodb_status_file = 
  208.  
  209. innodb_io_capacity = 
  210.  
  211. transaction_isolation = READ-COMMITTED
  212.  
  213. innodb_flush_method = O_DIRECT
  214.  
  215. gtid_mode = ON
  216.  
  217. enforce_gtid_consistency = ON
  218.  
  219. master_info_repository = TABLE
  220.  
  221. relay-log-info-repository = TABLE
  222.  
  223. binlog_checksum = NONE
  224.  
  225. log_slave_updates = ON
  226.  
  227. # Two-Master configure
  228.  
  229. #server-
  230.  
  231. #auto-increment-offset = 
  232.  
  233. #auto-increment-increment = 
  234.  
  235. #server-                          
  236.  
  237. auto-increment-offset = 
  238.  
  239. auto-increment-increment = 
  240.  
  241. # semi sync replication settings #
  242.  
  243. plugin_dir = /usr/local/mysql/lib/plugin #官方版本的路径
  244.  
  245. #plugin_dir = /usr/local/mysql/lib/mysql/plugin
  246.  
  247. plugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so" #官方版本的路径
  248.  
  249. #plugin_load = "validate_password.so;rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so"
  250.  
  251. loose_rpl_semi_sync_master_enabled = on     
  252.  
  253. loose_rpl_semi_sync_master_timeout =       
  254.  
  255. loose_rpl_semi_sync_master_trace_level =    
  256.  
  257. loose_rpl_semi_sync_master_wait_no_slave = on
  258.  
  259. loose_rpl_semi_sync_slave_enabled = on      
  260.  
  261. loose_rpl_semi_sync_slave_trace_level = 
  262.  
  263. loose_rpl_semi_sync_master_enabled = 
  264.  
  265. loose_rpl_semi_sync_slave_enabled = 
  266.  
  267. loose_rpl_semi_sync_master_timeout = 
  268.  
  269. loose_rpl_semi_sync_master_wait_for_slave_count=
  270.  
  271. loose_rpl_semi_sync_master_wait_point=AFTER_SYNC
  272.  
  273. slave_preserve_commit_order = 
  274.  
  275. slave_transaction_retries = 
  276.  
  277. log_timestamps = system
  278.  
  279. show_compatibility_56 = on
  280.  
  281. slave_parallel_workers = 
  282.  
  283. slave_parallel_type = LOGICAL_CLOCK
  284.  
  285. loose_innodb_numa_interleave = 
  286.  
  287. innodb_buffer_pool_dump_pct = 
  288.  
  289. innodb_page_cleaners = 
  290.  
  291. innodb_undo_log_truncate = 
  292.  
  293. innodb_max_undo_log_size = 2G
  294.  
  295. innodb_purge_rseg_truncate_frequency = 
  296.  
  297. #transaction_write_set_extraction = MURMUR32
  298.  
  299. # group replication
  300.  
  301. ##log-bin = mysql
  302.  
  303. ##server-id = 
  304.  
  305. ##gtid_mode = ON
  306.  
  307. ##enforce_gtid_consistency = ON
  308.  
  309. ##master_info_repository = TABLE
  310.  
  311. ##relay-log-info-repository = TABLE
  312.  
  313. ##binlog_checksum = NONE
  314.  
  315. ##log_slave_updates = ON
  316.  
  317. ##binlog_format = row
  318.  
  319. ##transaction_write_set_extraction=XXHASH64
  320.  
  321. ##loose-group_replication_group_name = '3db33b36-0e51-409f-a61d-c99756e90154'
  322.  
  323. ##loose-group_replication_start_on_boot = off
  324.  
  325. ##loose-group_replication_local_address= "10.125.141.62:28306"  # 不能超过5位数字
  326.  
  327. ##loose-group_replication_group_seeds= "10.125.141.62:28306,10.125.141.62:23307,10.125.141.62:23308"  # 不能超过5位数字
  328.  
  329. ##loose-group_replication_bootstrap_group= off
  330.  
  331. # loose-group_replication_single_primary_mode=FALSE   ###本次搭建的是mutil_mode
  332.  
  333. # loose-group_replication_enforce_update_everywhere_checks= TRUE
  334.  
  335. [mysqld_safe]
  336.  
  337. #malloc-lib=/usr/local/mysql/lib/jmalloc.so
  338.  
  339. nice=-
  340.  
  341. open-files-limit=
  342.  
  343. EOF

2.2.6、修改目录权限

  1. chown -R mysql.mysql /data/mysql/

2.2.7、初始化

  1. /usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql_8306/my_8306.cnf --initialize-insecure & 

2.2.8、启动

  1. # /usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql_8306/my_8306.cnf &
  2.  
  3. #  推荐的启动方式
  4.  
  5. /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_8306/my_8306.cnf &

2.2.9、登陆方式

  1. /usr/local/mysql/bin/mysql  -uroot -p -P8306 -S /data/mysql/mysql_8306/tmp/mysql_8306.sock
  2.  
  3. 或者
  4.  
  5. /usr/local/mysql/bin/mysql  -P8306 -S /data/mysql/mysql_8306/tmp/mysql_8306.sock

2.2.10、创建授权修改密码

  1. set sql_log_bin = 0;
  2.  
  3. create user 'rpl_user'@'%';
  4.  
  5. grant replication slave on *.* to 'rpl_user'@'%' identified by 'rpl_user2017';
  6.  
  7. update mysql.user set authentication_string=password('root2017') where user='root';
  8.  
  9. flush privileges;
  10.  
  11. set sql_log_bin = 1;
  12.  
  13. reset  master ; reset slave all;

2.2.11、change master

  1. CHANGE MASTER TO MASTER_HOST='172.16.210.180',MASTER_USER='rpl_user',
  2.  
  3. MASTER_PASSWORD='rpl_user2017',MASTER_PORT=8306,
  4.  
  5. MASTER_CONNECT_RETRY=10,MASTER_AUTO_POSITION =1;
  6.  
  7. start slave;
  8.  
  9. show slave status\G;

2.2.12、设置快捷登陆方式

  1. [root@my2 local]# /usr/local/mysql/bin/mysql_config_editor set --host=localhost --login-path=8306_localhost_login \
  2.  
  3. > --user=root --port=  --password --socket=/data/mysql/mysql_8306/tmp/mysql_8306.sock
  4.  
  5. Enter password:
  6.  
  7. [root@my2 local]#
  8.  
  9. # 查看
  10.  
  11. /usr/local/mysql/bin/mysql_config_editor print --all
  12.  
  13. [root@my2 local]# alias mysql..login='/usr/local/mysql/bin/mysql --defaults-file=/data/mysql/mysql_8306/my_8306.cnf --login-path=8306_localhost_login'

2.2.13、快捷关闭数据库

  1. [root@my2 local]#alias mysql..stop='/usr/local/mysql/bin/mysqladmin --login-path=8306_localhost_login shutdown'

2.2.14、加入备忘录

  1. [root@my2 ~]# cat  >>/root/.bashrc <<EOF
  2.  
  3. alias mysql..start='/usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_8306/my_8306.cnf &'
  4.  
  5. alias mysql..login='/usr/local/mysql/bin/mysql --defaults-file=/data/mysql/mysql_8306/my_8306.cnf --login-path=8306_localhost_login'
  6.  
  7. alias mysql..stop='/usr/local/mysql/bin/mysqladmin --login-path=8306_localhost_login shutdown'
  8.  
  9. EOF
  10.  
  11. [root@my2 ~]# source /root/.bash_profile

2.2.15、备份脚本

  1. [root@my2 ~]# cat /root/all_database.sh
  2.  
  3. #!/bin/bash
  4.  
  5. /usr/local/mysql/bin/mysqldump --login-path=8306_localhost_login -R -E --triggers -e --max_allowed_packet= --net_buffer_length=  --master-data= --single-transaction --all-databases --quick  | gzip >/root/all_database_bak_`date +%Y-%m-%d_%H_%M_%S`.sql.gz
  6.  
  7. [root@my2 ~]#

三、验证同步情况

3.1、在my1中操作

  1. [root@my1 ~]# mysql.8306.login
  2.  
  3. Welcome to the MySQL monitor.  Commands end with ; or \g.
  4.  
  5. Your MySQL connection id is 6
  6.  
  7. Server version: 5.7.20-log MySQL Community Server (GPL)
  8.  
  9. Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
  10.  
  11. Oracle is a registered trademark of Oracle Corporation and/or its
  12.  
  13. affiliates. Other names may be trademarks of their respective
  14.  
  15. owners.
  16.  
  17. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
  18.  
  19. [root@localhost][(none)]> show databases;
  20.  
  21. +--------------------+
  22.  
  23. | Database           |
  24.  
  25. +--------------------+
  26.  
  27. | information_schema |
  28.  
  29. | mysql              |
  30.  
  31. | performance_schema |
  32.  
  33. | sys                |
  34.  
  35. +--------------------+
  36.  
  37. 4 rows in set (0.00 sec)
  38.  
  39. [root@localhost][(none)]> create database db1;
  40.  
  41. Query OK, 1 row affected (0.01 sec)
  42.  
  43. [root@localhost][(none)]> show databases;
  44.  
  45. +--------------------+
  46.  
  47. | Database           |
  48.  
  49. +--------------------+
  50.  
  51. | information_schema |
  52.  
  53. | db1                |
  54.  
  55. | mysql              |
  56.  
  57. | performance_schema |
  58.  
  59. | sys                |
  60.  
  61. +--------------------+
  62.  
  63. 5 rows in set (0.00 sec)
  64.  
  65. [root@localhost][(none)]>
  66.  
  67. [root@localhost][(none)]> show slave status\G;
  68.  
  69. *************************** 1. row ***************************
  70.  
  71.                Slave_IO_State:
  72.  
  73.                   Master_Host: 172.16.210.181
  74.  
  75.                   Master_User: rpl_user
  76.  
  77.                   Master_Port: 8306
  78.  
  79.                 Connect_Retry: 10
  80.  
  81.               Master_Log_File: mysql-bin.000001
  82.  
  83.           Read_Master_Log_Pos: 150
  84.  
  85.                Relay_Log_File: my1-relay-bin.000003
  86.  
  87.                 Relay_Log_Pos: 4
  88.  
  89.         Relay_Master_Log_File: mysql-bin.000001
  90.  
  91.              Slave_IO_Running: Yes
  92.  
  93.             Slave_SQL_Running: Yes
  94.  
  95.               Replicate_Do_DB:
  96.  
  97.           Replicate_Ignore_DB:
  98.  
  99.            Replicate_Do_Table:
  100.  
  101.        Replicate_Ignore_Table:
  102.  
  103.       Replicate_Wild_Do_Table:
  104.  
  105.   Replicate_Wild_Ignore_Table:
  106.  
  107.                    Last_Errno: 0
  108.  
  109.                    Last_Error:
  110.  
  111.                  Skip_Counter: 0
  112.  
  113.           Exec_Master_Log_Pos: 150
  114.  
  115.               Relay_Log_Space: 721
  116.  
  117.               Until_Condition: None
  118.  
  119.                Until_Log_File:
  120.  
  121.                 Until_Log_Pos: 0
  122.  
  123.            Master_SSL_Allowed: No
  124.  
  125.            Master_SSL_CA_File:
  126.  
  127.            Master_SSL_CA_Path:
  128.  
  129.               Master_SSL_Cert:
  130.  
  131.             Master_SSL_Cipher:
  132.  
  133.                Master_SSL_Key:
  134.  
  135.         Seconds_Behind_Master: NULL
  136.  
  137. Master_SSL_Verify_Server_Cert: No
  138.  
  139.                 Last_IO_Errno: 0
  140.  
  141.                 Last_IO_Error:
  142.  
  143.                Last_SQL_Errno: 0
  144.  
  145.                Last_SQL_Error:
  146.  
  147.   Replicate_Ignore_Server_Ids:
  148.  
  149.              Master_Server_Id: 0
  150.  
  151.                   Master_UUID: d14b54b4-de49-11e7-96ea-8ae132e2dda2
  152.  
  153.              Master_Info_File: mysql.slave_master_info
  154.  
  155.                     SQL_Delay: 0
  156.  
  157.           SQL_Remaining_Delay: NULL
  158.  
  159.       Slave_SQL_Running_State:
  160.  
  161.            Master_Retry_Count: 86400
  162.  
  163.                   Master_Bind:
  164.  
  165.       Last_IO_Error_Timestamp:
  166.  
  167.      Last_SQL_Error_Timestamp:
  168.  
  169.                Master_SSL_Crl:
  170.  
  171.            Master_SSL_Crlpath:
  172.  
  173.            Retrieved_Gtid_Set:
  174.  
  175.             Executed_Gtid_Set: ce20a632-de49-11e7-9587-c2c763ed137c:1
  176.  
  177.                 Auto_Position: 1
  178.  
  179.          Replicate_Rewrite_DB:
  180.  
  181.                  Channel_Name:
  182.  
  183.            Master_TLS_Version:
  184.  
  185. 1 row in set (0.00 sec)
  186.  
  187. ERROR:
  188.  
  189. No query specified
  190.  
  191. [root@localhost][(none)]>

3.2、在my2中操作

  1. [root@my2 local]# mysql.8306.login
  2.  
  3. Welcome to the MySQL monitor.  Commands end with ; or \g.
  4.  
  5. Your MySQL connection id is 32
  6.  
  7. Server version: 5.7.20-log MySQL Community Server (GPL)
  8.  
  9. Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
  10.  
  11. Oracle is a registered trademark of Oracle Corporation and/or its
  12.  
  13. affiliates. Other names may be trademarks of their respective
  14.  
  15. owners.
  16.  
  17. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
  18.  
  19. [root@localhost][(none)]> show databases;
  20.  
  21. +--------------------+
  22.  
  23. | Database           |
  24.  
  25. +--------------------+
  26.  
  27. | information_schema |
  28.  
  29. | db1                |
  30.  
  31. | mysql              |
  32.  
  33. | performance_schema |
  34.  
  35. | sys                |
  36.  
  37. +--------------------+
  38.  
  39. 5 rows in set (0.00 sec)
  40.  
  41. [root@localhost][(none)]> create database db2;
  42.  
  43. Query OK, 1 row affected (0.00 sec)
  44.  
  45. [root@localhost][(none)]> show slave status\G;
  46.  
  47. *************************** 1. row ***************************
  48.  
  49.                Slave_IO_State: Waiting for master to send event
  50.  
  51.                   Master_Host: 172.16.210.180
  52.  
  53.                   Master_User: rpl_user
  54.  
  55.                   Master_Port: 8306
  56.  
  57.                 Connect_Retry: 10
  58.  
  59.               Master_Log_File: mysql-bin.000003
  60.  
  61.           Read_Master_Log_Pos: 303
  62.  
  63.                Relay_Log_File: my2-relay-bin.000003
  64.  
  65.                 Relay_Log_Pos: 508
  66.  
  67.         Relay_Master_Log_File: mysql-bin.000003
  68.  
  69.              Slave_IO_Running: Yes
  70.  
  71.             Slave_SQL_Running: Yes
  72.  
  73.               Replicate_Do_DB:
  74.  
  75.           Replicate_Ignore_DB:
  76.  
  77.            Replicate_Do_Table:
  78.  
  79.        Replicate_Ignore_Table:
  80.  
  81.       Replicate_Wild_Do_Table:
  82.  
  83.   Replicate_Wild_Ignore_Table:
  84.  
  85.                    Last_Errno: 0
  86.  
  87.                    Last_Error:
  88.  
  89.                  Skip_Counter: 0
  90.  
  91.           Exec_Master_Log_Pos: 303
  92.  
  93.               Relay_Log_Space: 910
  94.  
  95.               Until_Condition: None
  96.  
  97.                Until_Log_File:
  98.  
  99.                 Until_Log_Pos: 0
  100.  
  101.            Master_SSL_Allowed: No
  102.  
  103.            Master_SSL_CA_File:
  104.  
  105.            Master_SSL_CA_Path:
  106.  
  107.               Master_SSL_Cert:
  108.  
  109.             Master_SSL_Cipher:
  110.  
  111.                Master_SSL_Key:
  112.  
  113.         Seconds_Behind_Master: 0
  114.  
  115. Master_SSL_Verify_Server_Cert: No
  116.  
  117.                 Last_IO_Errno: 0
  118.  
  119.                 Last_IO_Error:
  120.  
  121.                Last_SQL_Errno: 0
  122.  
  123.                Last_SQL_Error:
  124.  
  125.   Replicate_Ignore_Server_Ids:
  126.  
  127.              Master_Server_Id: 1808306
  128.  
  129.                   Master_UUID: ce20a632-de49-11e7-9587-c2c763ed137c
  130.  
  131.              Master_Info_File: mysql.slave_master_info
  132.  
  133.                     SQL_Delay: 0
  134.  
  135.           SQL_Remaining_Delay: NULL
  136.  
  137.       Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
  138.  
  139.            Master_Retry_Count: 86400
  140.  
  141.                   Master_Bind:
  142.  
  143.       Last_IO_Error_Timestamp:
  144.  
  145.      Last_SQL_Error_Timestamp:
  146.  
  147.                Master_SSL_Crl:
  148.  
  149.            Master_SSL_Crlpath:
  150.  
  151.            Retrieved_Gtid_Set: ce20a632-de49-11e7-9587-c2c763ed137c:1
  152.  
  153.             Executed_Gtid_Set: ce20a632-de49-11e7-9587-c2c763ed137c:1,
  154.  
  155. d14b54b4-de49-11e7-96ea-8ae132e2dda2:1
  156.  
  157.                 Auto_Position: 1
  158.  
  159.          Replicate_Rewrite_DB:
  160.  
  161.                  Channel_Name:
  162.  
  163.            Master_TLS_Version:
  164.  
  165. 1 row in set (0.00 sec)
  166.  
  167. ERROR:
  168.  
  169. No query specified
  170.  
  171. 同步正常

四、同步故障处理举例

  1. # gtid故障处理
  2.  
  3. 模拟在从库删除库，然后再在主库删除该库，报如下错误
  4.  
  5.  Last_SQL_Error: Error 'Can't drop database 'db1'; database doesn't exist' on query. Default database: 'db1'. Query: 'drop database db1'
  6.  
  7.   Replicate_Ignore_Server_Ids:
  8.  
  9.              Master_Server_Id: 628306
  10.  
  11.                   Master_UUID: 11526eb0-fcbc-11e6-af7d-005056b937e2
  12.  
  13.              Master_Info_File: mysql.slave_master_info
  14.  
  15.                     SQL_Delay: 0
  16.  
  17.           SQL_Remaining_Delay: NULL
  18.  
  19.       Slave_SQL_Running_State:
  20.  
  21.            Master_Retry_Count: 86400
  22.  
  23.                   Master_Bind:
  24.  
  25.       Last_IO_Error_Timestamp:
  26.  
  27.      Last_SQL_Error_Timestamp: 170227 15:44:06
  28.  
  29.                Master_SSL_Crl:
  30.  
  31.            Master_SSL_Crlpath:
  32.  
  33.            Retrieved_Gtid_Set: 11526eb0-fcbc-11e6-af7d-005056b937e2:1-2
  34.  
  35.             Executed_Gtid_Set: 11526eb0-fcbc-11e6-af7d-005056b937e2:1,
  36.  
  37. 1760a7a5-fcbc-11e6-8f14-005056b90358:1
  38.  
  39.                 Auto_Position: 1
  40.  
  41.          Replicate_Rewrite_DB:
  42.  
  43.                  Channel_Name:
  44.  
  45.            Master_TLS_Version:
  46.  
  47. 处理方法：
  48.  
  49. stop slave;
  50.  
  51. set gtid_next='11526eb0-fcbc-11e6-af7d-005056b937e2:2';
  52.  
  53. begin;
  54.  
  55. commit;
  56.  
  57. set gtid_next='automatic';
  58.  
  59. start slave;
  60.  
  61. show slave status\G;

五、配置keeplived实现高可用

参考资料：

http://blog.51cto.com/lizhenliang/1362313

5.1、在my1中的操作

  1. yum install -y pcre-devel openssl-devel popt-devel libnl-* libn*#安装依赖包
  2.  
  3. #  将keepalived配置成系统服务
  4.  
  5. wget http://www.keepalived.org/software/keepalived-1.2.7.tar.gz
  6.  
  7. tar zxvf keepalived-1.2..tar.gz
  8.  
  9. cd keepalived-1.2.
  10.  
  11. ./configure --prefix=/usr/local/keepalived
  12.  
  13. make && make install
  14.  
  15. cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
  16.  
  17. cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
  18.  
  19. mkdir /etc/keepalived/
  20.  
  21. cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
  22.  
  23. cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
  24.  
  25. chmod +x /etc/init.d/keepalived
  26.  
  27. # server1
  28.  
  29. cat >/etc/keepalived/keepalived.conf <<EOF
  30.  
  31. ! Configuration File forkeepalived
  32.  
  33. global_defs {
  34.  
  35. # notification_email {
  36.  
  37. # test@sina.com
  38.  
  39. #  }
  40.  
  41. # notification_email_from  admin@test.com
  42.  
  43. # smtp_server 127.0.0.1
  44.  
  45. # smtp_connect_timeout 
  46.  
  47. router_id MYSQL_HA18      #标识，双主相同
  48.  
  49.  }
  50.  
  51. vrrp_instance VI_1 {
  52.  
  53.  state BACKUP           #两台都设置BACKUP
  54.  
  55.  interface eth0
  56.  
  57.  virtual_router_id        #主备相同
  58.  
  59.  priority            #优先级，backup设置90
  60.  
  61.  advert_int 
  62.  
  63.  nopreempt             #不主动抢占资源，只在master这台优先级高的设置，backup不设置
  64.  
  65.  authentication {
  66.  
  67.  auth_type PASS
  68.  
  69.  auth_pass 
  70.  
  71.  }
  72.  
  73.  virtual_ipaddress {
  74.  
  75.  172.16.210.183
  76.  
  77.  }
  78.  
  79. }
  80.  
  81. virtual_server 172.16.210.183  {
  82.  
  83.  delay_loop 
  84.  
  85.  #lb_algo rr              #LVS算法，用不到，我们就关闭了
  86.  
  87.  #lb_kind DR              #LVS模式，如果不关闭，备用服务器不能通过VIP连接主MySQL
  88.  
  89.  persistence_timeout   #同一IP的连接60秒内被分配到同一台真实服务器
  90.  
  91.  protocol TCP
  92.  
  93.  real_server 172.16.210.180  {   #检测本地mysql，backup也要写检测本地mysql
  94.  
  95.  weight 
  96.  
  97.  notify_down /usr/local/keepalived/mysql.sh    #当mysq服down时，执行此脚本，杀死keepalived实现切换
  98.  
  99.  TCP_CHECK {
  100.  
  101.  connect_timeout     #连接超时
  102.  
  103.  nb_get_retry        #重试次数
  104.  
  105.  delay_before_retry  #重试间隔时间
  106.  
  107.   }
  108.  
  109. }
  110.  
  111. EOF
  112.  
  113. cat >/usr/local/keepalived/mysql.sh <<EOF
  114.  
  115. #!/bin/bash
  116.  
  117. pkill keepalived
  118.  
  119. EOF
  120.  
  121. chmod +x /usr/local/keepalived/mysql.sh
  122.  
  123. chmod +x /etc/init.d/keepalived
  124.  
  125. /etc/init.d/keepalived start

5.2、在my2中的操作

  1. yum install -y pcre-devel openssl-devel popt-devel libnl-* libn*#安装依赖包
  2.  
  3. #  将keepalived配置成系统服务
  4.  
  5. wget http://www.keepalived.org/software/keepalived-1.2.7.tar.gz
  6.  
  7. tar zxvf keepalived-1.2..tar.gz
  8.  
  9. cd keepalived-1.2.
  10.  
  11. ./configure --prefix=/usr/local/keepalived
  12.  
  13. make && make install
  14.  
  15. cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
  16.  
  17. cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
  18.  
  19. mkdir /etc/keepalived/
  20.  
  21. cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
  22.  
  23. cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
  24.  
  25. chmod +x /etc/init.d/keepalived
  26.  
  27. # server2
  28.  
  29. cat >/etc/keepalived/keepalived.conf <<EOF
  30.  
  31. cat /etc/keepalived/keepalived.conf
  32.  
  33. ! Configuration File forkeepalived
  34.  
  35. global_defs {
  36.  
  37. # notification_email {
  38.  
  39. # test@sina.com
  40.  
  41. #  }
  42.  
  43. # notification_email_from  admin@test.com
  44.  
  45. # smtp_server 127.0.0.1
  46.  
  47. # smtp_connect_timeout 
  48.  
  49. router_id MYSQL_HA18      #标识，双主相同
  50.  
  51.  }
  52.  
  53. vrrp_instance VI_1 {
  54.  
  55.  state BACKUP           #两台都设置BACKUP
  56.  
  57.  interface eth0
  58.  
  59.  virtual_router_id        #主备相同
  60.  
  61.  priority            #优先级，backup设置90
  62.  
  63.  advert_int 
  64.  
  65.  #nopreempt             #不主动抢占资源，只在master这台优先级高的设置，backup不设置
  66.  
  67.  authentication {
  68.  
  69.  auth_type PASS
  70.  
  71.  auth_pass 
  72.  
  73.  }
  74.  
  75.  virtual_ipaddress {
  76.  
  77.  172.16.210.183
  78.  
  79.  }
  80.  
  81. }
  82.  
  83. virtual_server 172.16.210.183  {
  84.  
  85.  delay_loop 
  86.  
  87.  #lb_algo rr              #LVS算法，用不到，我们就关闭了
  88.  
  89.  #lb_kind DR              #LVS模式，如果不关闭，备用服务器不能通过VIP连接主MySQL
  90.  
  91.  persistence_timeout   #同一IP的连接60秒内被分配到同一台真实服务器
  92.  
  93.  protocol TCP
  94.  
  95.  real_server 172.16.210.181  {   #检测本地mysql，backup也要写检测本地mysql
  96.  
  97.  weight 
  98.  
  99.  notify_down /usr/local/keepalived/mysql.sh    #当mysq服down时，执行此脚本，杀死keepalived实现切换
  100.  
  101.  TCP_CHECK {
  102.  
  103.  connect_timeout     #连接超时
  104.  
  105.  nb_get_retry        #重试次数
  106.  
  107.  delay_before_retry  #重试间隔时间
  108.  
  109.   }
  110.  
  111. }
  112.  
  113. EOF
  114.  
  115. cat >/usr/local/keepalived/mysql.sh <<EOF
  116.  
  117. #!/bin/bash
  118.  
  119. pkill keepalived
  120.  
  121. EOF
  122.  
  123. chmod +x /usr/local/keepalived/mysql.sh
  124.  
  125. chmod +x /etc/init.d/keepalived
  126.  
  127. /etc/init.d/keepalived start

六、测试高可用性

6.1、启动my1的keeplive服务

  1. [root@my1 ~]# /etc/init.d/keepalived start
  2.  
  3. Starting keepalived:                                       [  OK  ]
  4.  
  5. [root@my1 ~]#
  6.  
  7. [root@my1 ~]# tail  /var/log/messages
  8.  
  9. Dec  :: localhost Keepalived_healthcheckers[]: IPVS: Service not defined
  10.  
  11. Dec  :: localhost Keepalived_healthcheckers[]: Using LinkWatch kernel netlink reflector...
  12.  
  13. Dec  :: localhost Keepalived_healthcheckers[]: Activating healthchecker for service [172.16.210.180]:
  14.  
  15. Dec  :: localhost kernel: IPVS: Scheduler module ip_vs_ not found
  16.  
  17. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Transition to MASTER STATE
  18.  
  19. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Entering MASTER STATE
  20.  
  21. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) setting protocol VIPs.
  22.  
  23. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183
  24.  
  25. Dec  :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP 172.16.210.183 added
  26.  
  27. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183
  28.  
  29. [root@my1 ~]#

6.2、启动my2的keeplived服务

  1. [root@my2 ~]# /etc/init.d/keepalived  start
  2.  
  3. Starting keepalived:                                       [  OK  ]
  4.  
  5. [root@my2 ~]#
  6.  
  7. [root@my2 ~]# tail  /var/log/messages
  8.  
  9. Dec  :: localhost Keepalived_healthcheckers[]: Opening file '/etc/keepalived/keepalived.conf'.
  10.  
  11. Dec  :: localhost Keepalived_healthcheckers[]: Configuration is using :  Bytes
  12.  
  13. Dec  :: localhost Keepalived_vrrp[]: Using LinkWatch kernel netlink reflector...
  14.  
  15. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Entering BACKUP STATE
  16.  
  17. Dec  :: localhost Keepalived_vrrp[]: VRRP sockpool: [ifindex(), proto(), fd(,)]
  18.  
  19. Dec  :: localhost Keepalived_healthcheckers[]: IPVS: Scheduler not found
  20.  
  21. Dec  :: localhost Keepalived_healthcheckers[]: IPVS: Service not defined
  22.  
  23. Dec  :: localhost Keepalived_healthcheckers[]: Using LinkWatch kernel netlink reflector...
  24.  
  25. Dec  :: localhost Keepalived_healthcheckers[]: Activating healthchecker for service [172.16.210.181]:
  26.  
  27. Dec  :: localhost kernel: IPVS: Scheduler module ip_vs_ not found
  28.  
  29. [root@my2 ~]#

6.3、关闭my1的mysql服务

  1. [root@my1 ~]# ps -ef|grep mysql
  2.  
  3. root         : pts/    :: grep mysql
  4.  
  5. root             Dec11 ?        :: /bin/sh /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_8306/my_8306.cnf
  6.  
  7. mysql        Dec11 ?        :: /usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql_8306/my_8306.cnf --basedir=/usr/local/mysql --datadir=/data/mysql/mysql_8306/data --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/data/mysql/mysql_8306/logs/error.log --open-files-limit= --pid-file=mysql.pid --socket=/data/mysql/mysql_8306/tmp/mysql_8306.sock --port=
  8.  
  9. [root@my1 ~]# mysql..stop
  10.  
  11. [root@my1 ~]# ps -ef|grep mysql
  12.  
  13. root         : pts/    :: grep mysql
  14.  
  15. [root@my1 ~]#
  16.  
  17. #  查看my1的日志
  18.  
  19. [root@my1 ~]# tail - /var/log/messages  
  20.  
  21. Dec  :: localhost Keepalived_healthcheckers[]: IPVS: Service not defined
  22.  
  23. Dec  :: localhost Keepalived_healthcheckers[]: Using LinkWatch kernel netlink reflector...
  24.  
  25. Dec  :: localhost Keepalived_healthcheckers[]: Activating healthchecker for service [172.16.210.180]:
  26.  
  27. Dec  :: localhost kernel: IPVS: Scheduler module ip_vs_ not found
  28.  
  29. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Transition to MASTER STATE
  30.  
  31. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Entering MASTER STATE
  32.  
  33. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) setting protocol VIPs.
  34.  
  35. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183
  36.  
  37. Dec  :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP 172.16.210.183 added
  38.  
  39. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183
  40.  
  41. Dec  :: localhost Keepalived_healthcheckers[]: TCP connection to [172.16.210.180]: failed !!!
  42.  
  43. Dec  :: localhost Keepalived_healthcheckers[]: Removing service [172.16.210.180]: from VS [172.16.210.183]:
  44.  
  45. Dec  :: localhost Keepalived_healthcheckers[]: IPVS: Service not defined
  46.  
  47. Dec  :: localhost Keepalived_healthcheckers[]: Executing [/usr/local/keepalived/mysql.sh] for service [172.16.210.180]: in VS [172.16.210.183]:
  48.  
  49. Dec  :: localhost Keepalived_healthcheckers[]: Lost quorum -= >  for VS [172.16.210.183]:
  50.  
  51. Dec  :: localhost Keepalived[]: Stopping Keepalived v1.2.7 (/,)
  52.  
  53. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) sending  priority
  54.  
  55. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) removing protocol VIPs.
  56.  
  57. Dec  :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP 172.16.210.183 removed
  58.  
  59. Dec  :: localhost Keepalived_healthcheckers[]: IPVS: No such service
  60.  
  61. [root@my1 ~]#

6.4、查看my2的日志及其vip情况

  1. [root@my2 ~]# ip add
  2.  
  3. : lo: <LOOPBACK,UP,LOWER_UP> mtu  qdisc noqueue state UNKNOWN
  4.  
  5.     link/loopback ::::: brd :::::
  6.  
  7.     inet 127.0.0.1/ scope host lo
  8.  
  9.     inet6 ::/ scope host
  10.  
  11.        valid_lft forever preferred_lft forever
  12.  
  13. : eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu  qdisc pfifo_fast state UP qlen 
  14.  
  15.     link/ether 8a:e1::e2:dd:a2 brd ff:ff:ff:ff:ff:ff
  16.  
  17.     inet 172.16.210.181/ brd 172.16.210.255 scope global eth0
  18.  
  19.     inet 172.16.210.183/ scope global eth0
  20.  
  21.     inet6 fe80::88e1:32ff:fee2:dda2/ scope link
  22.  
  23.        valid_lft forever preferred_lft forever
  24.  
  25. : eth1: <BROADCAST,MULTICAST> mtu  qdisc noop state DOWN qlen 
  26.  
  27.     link/ether f6:da:a4:::cc brd ff:ff:ff:ff:ff:ff
  28.  
  29. [root@my2 ~]#
  30.  
  31. [root@my2 ~]# tail  - /var/log/messages
  32.  
  33. Dec  :: localhost Keepalived_vrrp[]: No such interface, eth1
  34.  
  35. Dec  :: localhost Keepalived_vrrp[]: Netlink reflector reports IP 172.16.210.181 added
  36.  
  37. Dec  :: localhost Keepalived_vrrp[]: Netlink reflector reports IP fe80::88e1:32ff:fee2:dda2 added
  38.  
  39. Dec  :: localhost Keepalived_vrrp[]: Registering Kernel netlink reflector
  40.  
  41. Dec  :: localhost Keepalived_vrrp[]: Registering Kernel netlink command channel
  42.  
  43. Dec  :: localhost Keepalived_vrrp[]: Registering gratuitous ARP shared channel
  44.  
  45. Dec  :: localhost Keepalived_healthcheckers[]: Interface queue is empty
  46.  
  47. Dec  :: localhost Keepalived_healthcheckers[]: No such interface, eth1
  48.  
  49. Dec  :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP 172.16.210.181 added
  50.  
  51. Dec  :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP fe80::88e1:32ff:fee2:dda2 added
  52.  
  53. Dec  :: localhost Keepalived_healthcheckers[]: Registering Kernel netlink reflector
  54.  
  55. Dec  :: localhost Keepalived_healthcheckers[]: Registering Kernel netlink command channel
  56.  
  57. Dec  :: localhost Keepalived_vrrp[]: Opening file '/etc/keepalived/keepalived.conf'.
  58.  
  59. Dec  :: localhost Keepalived_vrrp[]: Configuration is using :  Bytes
  60.  
  61. Dec  :: localhost Keepalived_healthcheckers[]: Opening file '/etc/keepalived/keepalived.conf'.
  62.  
  63. Dec  :: localhost Keepalived_healthcheckers[]: Configuration is using :  Bytes
  64.  
  65. Dec  :: localhost Keepalived_vrrp[]: Using LinkWatch kernel netlink reflector...
  66.  
  67. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Entering BACKUP STATE
  68.  
  69. Dec  :: localhost Keepalived_vrrp[]: VRRP sockpool: [ifindex(), proto(), fd(,)]
  70.  
  71. Dec  :: localhost Keepalived_healthcheckers[]: IPVS: Scheduler not found
  72.  
  73. Dec  :: localhost Keepalived_healthcheckers[]: IPVS: Service not defined
  74.  
  75. Dec  :: localhost Keepalived_healthcheckers[]: Using LinkWatch kernel netlink reflector...
  76.  
  77. Dec  :: localhost Keepalived_healthcheckers[]: Activating healthchecker for service [172.16.210.181]:
  78.  
  79. Dec  :: localhost kernel: IPVS: Scheduler module ip_vs_ not found
  80.  
  81. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Transition to MASTER STATE
  82.  
  83. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Entering MASTER STATE
  84.  
  85. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) setting protocol VIPs.
  86.  
  87. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183
  88.  
  89. Dec  :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP 172.16.210.183 added
  90.  
  91. Dec  :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183
  92.  
  93. [root@my2 ~]#
  94.  
  95. 表明已经切换完成。

七、系统参数优化配置

7.1、系统配置

  1. #手工的执行如下的动作,使之立刻生效，以下是物理机中会有，根据实际可能需要修改:
  2.  
  3. echo never > /sys/kernel/mm/transparent_hugepage/enabled
  4.  
  5. echo never > /sys/kernel/mm/transparent_hugepage/defrag
  6.  
  7. echo deadline > /sys/block/sda/queue/scheduler
  8.  
  9. echo "" > /sys/block/sda/queue/read_ahead_kb
  10.  
  11. echo "" > /sys/block/sda/queue/nr_requests
  12.  
  13. #减少预读：/sys/block/sda/queue/read_ahead_kb，默认128，调整为16
  14.  
  15. #增大队列：/sys/block/sda/queue/nr_requests，默认128，调整为512
  16.  
  17. echo "" > /sys/block/sda/queue/read_ahead_kb
  18.  
  19. echo "" > /sys/block/sda/queue/nr_requests
  20.  
  21. #如果是使用普通SAS盘的话,使用elevator=deadline
  22.  
  23. #如果是使用SSD/FLASH卡的话,使用elevator=noop
  24.  
  25. echo noop > /sys/block/sda/queue/scheduler
  26.  
  27. echo deadline > /sys/block/sda/queue/scheduler
  28.  
  29. #对于关闭透明大页的问题,也执行如下的操作:编辑 /etc/rc.local,添加如下内容
  30.  
  31. cat >> /etc/rc.local <<EOF
  32.  
  33. #echo noop > /sys/block/sda/queue/scheduler
  34.  
  35. echo deadline > /sys/block/sda/queue/scheduler
  36.  
  37. echo never > /sys/kernel/mm/transparent_hugepage/enabled
  38.  
  39. echo never > /sys/kernel/mm/transparent_hugepage/defrag
  40.  
  41. echo "" > /sys/block/sda/queue/read_ahead_kb
  42.  
  43. echo "" > /sys/block/sda/queue/nr_requests
  44.  
  45. if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
  46.  
  47.    echo never > /sys/kernel/mm/transparent_hugepage/enabled
  48.  
  49. fi
  50.  
  51. if test -f /sys/kernel/mm/transparent_hugepage/defrag; then
  52.  
  53.    echo never > /sys/kernel/mm/transparent_hugepage/defrag
  54.  
  55. fi
  56.  
  57. EOF
  58.  
  59. # 修改目录权限
  60.  
  61. chown -R mysql.mysql /data/mysql/

7.2、修改系统内核参数

  1. cat >> /etc/sysctl.conf <<EOF
  2.  
  3. fs.file-max=
  4.  
  5. fs.aio-max-nr = 
  6.  
  7. kernel.sem =    
  8.  
  9. kernel.shmmax = 
  10.  
  11. kernel.shmall = 
  12.  
  13. kernel.shmmni = 
  14.  
  15. net.ipv4.ip_local_port_range =  
  16.  
  17. net.ipv4.tcp_mem =   
  18.  
  19. net.core.wmem_default = 
  20.  
  21. net.core.rmem_default = 
  22.  
  23. net.core.rmem_max = 
  24.  
  25. net.core.wmem_max = 
  26.  
  27. net.ipv4.tcp_rmem =   
  28.  
  29. net.ipv4.tcp_wmem =   
  30.  
  31. net.core.netdev_max_backlog = 
  32.  
  33. net.ipv4.tcp_tw_recycle = 
  34.  
  35. net.ipv4.tcp_tw_reuse = 
  36.  
  37. net.ipv4.tcp_fin_timeout = 
  38.  
  39. net.ipv4.tcp_keepalive_time = 
  40.  
  41. net.ipv4.tcp_max_syn_backlog = 
  42.  
  43. net.ipv4.tcp_syncookies = 
  44.  
  45. net.ipv4.tcp_timestamps = 
  46.  
  47. net.ipv4.conf.default.accept_source_route = 
  48.  
  49. vm.swappiness=
  50.  
  51. EOF
  52.  
  53. sysctl -p
  54.  
  55. echo "" >/proc/sys/net/ipv4/conf/lo/arp_ignore       
  56.  
  57. echo "" >/proc/sys/net/ipv4/conf/lo/arp_announce       
  58.  
  59. echo "" >/proc/sys/net/ipv4/conf/all/arp_ignore       
  60.  
  61. echo "" >/proc/sys/net/ipv4/conf/all/arp_announce

附录：新安装的虚拟机修改信息

1、修改主机名

  1. yum -y install vim telnet unzip zip lrzsz
  2.  
  3. hostname dev_test
  4.  
  5. sed -i 's/HOSTNAME=localhost.localdomain/HOSTNAME=dev_test/g' /etc/sysconfig/network
  6.  
  7. sed -n '/HOSTNAME/p' /etc/sysconfig/network

2、关闭selinux

  1. sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
  2.  
  3. setenforce

3、关闭防火墙

  1. /etc/init.d/iptables  stop
  2.  
  3. cat >>/etc/rc.local <<EOF
  4.  
  5. /etc/init.d/iptables  stop
  6.  
  7. EOF

4、修改网卡ip信息

  1. cat >/etc/sysconfig/network-scripts/ifcfg-eth0 <<EOF
  2.  
  3. TYPE=Ethernet
  4.  
  5. BOOTPROTO=static
  6.  
  7. NAME=eth0
  8.  
  9. DEVICE=eth0
  10.  
  11. ONBOOT=yes
  12.  
  13. IPADDR=172.16.210.111
  14.  
  15. NETMASK=255.255.255.0
  16.  
  17. GATEWAY=172.16.210.250
  18.  
  19. EOF

5、重启网卡服务

  1. /etc/init.d/network restart

6、修改dns

  1. cat >/etc/resolv.conf <<EOF
  2.  
  3. nameserver 172.16.110.11
  4.  
  5. nameserver 8.8.8.8
  6.  
  7. EOF

7、系统初始化配置

7.1、关闭SELINUX

  1. #修改配置文件,重启服务后永久生效。
  2.  
  3. sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
  4.  
  5. #命令行设置立即生效
  6.  
  7. setenforce

7.2、防火墙设置

  1. cat >>/etc/rc.local <<EOF
  2.  
  3. /etc/init.d/iptables  stop
  4.  
  5. EOF
  6.  
  7. cp /etc/sysconfig/iptables /root/iptables.bak
  8.  
  9. cat >/etc/sysconfig/iptables <<EOF
  10.  
  11. # Firewall configuration written by system-config-firewall
  12.  
  13. # Manual customization of this file is not recommended.
  14.  
  15. *filter
  16.  
  17. :INPUT DROP [:]
  18.  
  19. :FORWARD ACCEPT [:]
  20.  
  21. :OUTPUT ACCEPT [:]
  22.  
  23. -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
  24.  
  25. -A INPUT -p icmp -j ACCEPT
  26.  
  27. -A INPUT -i lo -j ACCEPT
  28.  
  29. -A INPUT -p tcp -m tcp --dport  -j ACCEPT
  30.  
  31. -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
  32.  
  33. -A INPUT -j REJECT --reject-with icmp-host-prohibited
  34.  
  35. -A FORWARD -j REJECT --reject-with icmp-host-prohibited
  36.  
  37. COMMIT
  38.  
  39. EOF
  40.  
  41. /etc/init.d/iptables  restart 

7.3、安装基础依赖包

  1. # yum  -y install  gcc-c++ gd libxml2-devel libjpeg-devel libpng-devel net-snmp-devel wget telnet vim zip unzip
  2.  
  3. # yum  -y install  curl-devel libxslt-devel pcre-devel libjpeg libpng libxml2 libcurl4-openssl-dev
  4.  
  5. # yum  -y install  libcurl-devel libcurl freetype-config freetype freetype-devel unixODBC libxslt
  6.  
  7. yum  clean all
  8.  
  9. yum -y update
  10.  
  11. yum -y install gcc-c++ gd libxml2-devel libjpeg-devel libpng-devel net-snmp-devel wget telnet vim zip unzip
  12.  
  13. yum -y install curl-devel libxslt-devel pcre-devel libjpeg libpng libcurl4-openssl-dev
  14.  
  15. yum -y install libcurl-devel libcurl freetype-config freetype freetype-devel unixODBC libxslt
  16.  
  17. yum -y install gcc automake autoconf libtool openssl-devel
  18.  
  19. yum -y install perl-devel perl-ExtUtils-Embed
  20.  
  21. yum -y install cmake ncurses-devel.x86_64  openldap-devel.x86_64 lrzsz  openssh-clients gcc-g77  bison
  22.  
  23. yum -y install libmcrypt libmcrypt-devel mhash mhash-devel bzip2 bzip2-devel
  24.  
  25. yum -y install ntpdate rsync svn  patch  iptables iptables-services
  26.  
  27. yum -y install libevent libevent-devel  cyrus-sasl cyrus-sasl-devel
  28.  
  29. yum -y install gd-devel libmemcached-devel memcached git libssl-devel libyaml-devel auto make
  30.  
  31. yum -y groupinstall "Server Platform Development" "Development tools"
  32.  
  33. yum -y groupinstall "Development tools"
  34.  
  35. yum -y install gcc.x86_64 libxml2.x86_64 libxml2-devel.x86_64 openssl.x86_64 openssl-devel.x86_64 libcurl.x86_64 libcurl-devel.x86_64
  36.  
  37. yum -y install gd.x86_64 gd-devel.x86_64  gcc-c++.x86_64 readline.x86_64 readline-devel.x86_64

7.4、时间同步

  1. cat >/root/ntp.sh <<EOF
  2.  
  3. #!/bin/bash
  4.  
  5. # ntp.sh
  6.  
  7. #NTP服务器数组列表
  8.  
  9. ntpServer=(

[0]=1.cn.pool.ntp.org

[1]=0.cn.pool.ntp.org

[2]=2.cn.pool.ntp.org
[3]=3.cn.pool.ntp.org

  1. )
  2.  
  3. #校验#
  4.  
  5. serverNum=`echo \${#ntpServer[*]}`
  6.  
  7. NUM=
  8.  
  9. for ((i=; i<=\$serverNum; i++)); do
  10.  
  11.     echo -n "正在和NTP服务器:\${ntpServer[\$NUM]}校验中..."
  12.  
  13.     /usr/sbin/ntpdate \${ntpServer[\$NUM]} >> /dev/null >&
  14.  
  15.     if [ \$? -eq  ]; then
  16.  
  17.         echo -e "\e[1;32m\t[成功]\e[0m"
  18.  
  19.         echo -e "\e[1;32m同步成功,退出......\e[0m"
  20.  
  21.         break
  22.  
  23.     else
  24.  
  25.         echo -e "\e[1;31m\t[失败]\e[0m"
  26.  
  27.         echo -e "\e[1;31m继续同步下一个!!!!!\e[0m"
  28.  
  29.         let NUM++
  30.  
  31.     fi
  32.  
  33.     sleep 
  34.  
  35. done
  36.  
  37. EOF
  38.  
  39. chmod +x /root/ntp.sh
  40.  
  41. sh /root/ntp.sh
  42.  
  43. cat >>/etc/crontab <<EOF
  44.  
  45.  * * * *  /root/ntp.sh
  46.  
  47. #  */ * * /bin/bash /root/cutlog.sh
  48.  
  49. EOF

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