MySQL双主+keeplived安装部署说明
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
yum clean all yum -y update yum -y install gcc gcc-c++ make autoconf automake ncurses-devel bison ncurses cmake libaio libaio-devel boost yum -y install gcc-c++ gd libxml2-devel libjpeg-devel libpng-devel net-snmp-devel wget telnet vim zip unzip yum -y install curl-devel libxslt-devel pcre-devel libjpeg libpng libcurl4-openssl-dev yum -y install libcurl-devel libcurl freetype-config freetype freetype-devel unixODBC libxslt yum -y install gcc automake autoconf libtool openssl-devel yum -y install perl-devel perl-ExtUtils-Embed yum -y install cmake ncurses-devel.x86_64 openldap-devel.x86_64 lrzsz openssh-clients gcc-g77 bison yum -y install libmcrypt libmcrypt-devel mhash mhash-devel bzip2 bzip2-devel yum -y install ntpdate rsync svn patch iptables iptables-services yum -y install libevent libevent-devel cyrus-sasl cyrus-sasl-devel yum -y install gd-devel libmemcached-devel memcached git libssl-devel libyaml-devel auto make yum -y groupinstall "Server Platform Development" "Development tools" yum -y groupinstall "Development tools"
2.1.2、下载解压
rm -rf /etc/my.cnf mkdir -p /opt/mysql cd /opt/mysql/ wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.20-linux-glibc2.12-x86_64.tar.gz tar -zxf mysql-5.7.-linux-glibc2.-x86_64.tar.gz cd /usr/local/ ln -s /opt/mysql/mysql-5.7.-linux-glibc2.-x86_64 mysql
2.1.3、创建所需要的目录
mkdir -p /data/mysql/mysql_8306/{data,logs,tmp}
2.1.4、更改权限
groupadd mysql useradd -g mysql mysql -d /home/mysql -s /sbin/nologin
2.1.5、创建my.cnf
cat >/data/mysql/mysql_8306/my_8306.cnf <<EOF #my.cnf [client] port = socket = /data/mysql/mysql_8306/tmp/mysql_8306.sock [mysql] #prompt="\u@\h:\p \R:\m:\s [\d]>" #tee=/data/mysql/mysql_8306/data/query.log #prompt="\u@\h:\p \R:\m:\s [\d]>" prompt = "[\u@\h][\d]>\_" connect_timeout = no-auto-rehash [mysqld] #misc user = mysql basedir = /usr/local/mysql datadir = /data/mysql/mysql_8306/data port = socket = /data/mysql/mysql_8306/tmp/mysql_8306.sock #timeout interactive_timeout = wait_timeout = #character set character-set-server = utf8 open_files_limit = max_connections = max_connect_errors = skip-name-resolve = #logs log-output=file slow_query_log = slow_query_log_file = /data/mysql/mysql_8306/logs/slow.log log-error = /data/mysql/mysql_8306/logs/error.log log_error_verbosity = pid-file = mysql.pid long_query_time = #log-slow-admin-statements = #log-queries-not-using-indexes = log-slow-slave-statements = #tmp tmpdir=/data/mysql/mysql_8306/tmp event_scheduler = performance_schema = on max_allowed_packet = 32M character_set_server = utf8mb4 #character_set_server = utf8 default-time-zone = system default-storage-engine = InnoDB #bind_address = 172.16.151.248 explicit_defaults_for_timestamp = #binlog binlog_format = row server-id = log-bin = /data/mysql/mysql_8306/logs/mysql-bin log-bin-index = /data/mysql/mysql_8306/logs/mysql-bin.index binlog_cache_size = 4M max_binlog_size = 1G max_binlog_cache_size = 2G sync_binlog = expire_logs_days = #replicate-wild-ignore-table=mysql.%
replicate-wild-ignore-table=test.%
replicate-wild-ignore-table=information_schema.% #relay log skip_slave_start = max_relay_log_size = 1G relay_log_purge = relay_log_recovery = log_slave_updates #slave-skip-errors=,, explicit_defaults_for_timestamp= #buffers & cache table_open_cache = table_definition_cache = table_open_cache = max_heap_table_size = 96M sort_buffer_size = 2M join_buffer_size = 2M thread_cache_size = query_cache_size = query_cache_type = query_cache_limit = 256K query_cache_min_res_unit = thread_stack = 192K tmp_table_size = 96M key_buffer_size = 8M read_buffer_size = 2M read_rnd_buffer_size = 16M bulk_insert_buffer_size = 32M #myisam myisam_sort_buffer_size = 128M myisam_max_sort_file_size = 10G myisam_repair_threads = #innodb innodb_buffer_pool_size = 10G innodb_buffer_pool_instances = innodb_data_file_path = ibdata1:1G:autoextend innodb_flush_log_at_trx_commit = innodb_log_buffer_size = 64M innodb_log_file_size = 500M innodb_log_files_in_group = innodb_max_dirty_pages_pct = innodb_file_per_table = innodb_rollback_on_timeout innodb_status_file = innodb_io_capacity = transaction_isolation = READ-COMMITTED innodb_flush_method = O_DIRECT gtid_mode = ON enforce_gtid_consistency = ON master_info_repository = TABLE relay-log-info-repository = TABLE binlog_checksum = NONE log_slave_updates = ON # Two-Master configure #server- auto-increment-offset = auto-increment-increment = #server- #auto-increment-offset = #auto-increment-increment = # semi sync replication settings # plugin_dir = /usr/local/mysql/lib/plugin #官方版本的路径 #plugin_dir = /usr/local/mysql/lib/mysql/plugin plugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so" #官方版本的路径 #plugin_load = "validate_password.so;rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so" loose_rpl_semi_sync_master_enabled = on loose_rpl_semi_sync_master_timeout = loose_rpl_semi_sync_master_trace_level = loose_rpl_semi_sync_master_wait_no_slave = on loose_rpl_semi_sync_slave_enabled = on loose_rpl_semi_sync_slave_trace_level = loose_rpl_semi_sync_master_enabled = loose_rpl_semi_sync_slave_enabled = loose_rpl_semi_sync_master_timeout = loose_rpl_semi_sync_master_wait_for_slave_count= loose_rpl_semi_sync_master_wait_point=AFTER_SYNC slave_preserve_commit_order = slave_transaction_retries = log_timestamps = system show_compatibility_56 = on slave_parallel_workers = slave_parallel_type = LOGICAL_CLOCK loose_innodb_numa_interleave = innodb_buffer_pool_dump_pct = innodb_page_cleaners = innodb_undo_log_truncate = innodb_max_undo_log_size = 2G innodb_purge_rseg_truncate_frequency = #transaction_write_set_extraction = MURMUR32 # group replication ##log-bin = mysql ##server-id = ##gtid_mode = ON ##enforce_gtid_consistency = ON ##master_info_repository = TABLE ##relay-log-info-repository = TABLE ##binlog_checksum = NONE ##log_slave_updates = ON ##binlog_format = row ##transaction_write_set_extraction=XXHASH64 ##loose-group_replication_group_name = '3db33b36-0e51-409f-a61d-c99756e90154' ##loose-group_replication_start_on_boot = off ##loose-group_replication_local_address= "10.125.141.62:28306" # 不能超过5位数字 ##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 ##loose-group_replication_bootstrap_group= off # loose-group_replication_single_primary_mode=FALSE ###本次搭建的是mutil_mode # loose-group_replication_enforce_update_everywhere_checks= TRUE [mysqld_safe] #malloc-lib=/usr/local/mysql/lib/jmalloc.so nice=- open-files-limit= EOF
2.1.6、修改目录权限
chown -R mysql.mysql /data/mysql/
2.1.7、初始化
/usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql_8306/my_8306.cnf --initialize-insecure &
2.1.8、启动
/usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql_8306/my_8306.cnf &
# 推荐的启动方式
/usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_8306/my_8306.cnf &
2.1.9、登陆方式
/usr/local/mysql/bin/mysql -uroot -p -P8306 -S /data/mysql/mysql_8306/tmp/mysql_8306.sock
或者
/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
set sql_log_bin = 0;
create user 'rpl_user'@'%';
grant replication slave on *.* to 'rpl_user'@'%' identified by 'rpl_user2017';
update mysql.user set authentication_string=password('root2017') where user='root';
flush privileges;
set sql_log_bin = 1;
reset master ; reset slave all;
2.1.11、change master
CHANGE MASTER TO MASTER_HOST='172.16.210.181',MASTER_USER='rpl_user', MASTER_PASSWORD='rpl_user2017',MASTER_PORT=8306, MASTER_CONNECT_RETRY=10,MASTER_AUTO_POSITION =1; start slave; show slave status\G;
2.1.12、设置快捷登陆方式
[root@my1 local]# /usr/local/mysql/bin/mysql_config_editor set --host=localhost --login-path=8306_localhost_login \ > --user=root --port= --password --socket=/data/mysql/mysql_8306/tmp/mysql_8306.sock Enter password: [root@my1 local]# # 查看 /usr/local/mysql/bin/mysql_config_editor print --all [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
[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
[root@my1 ~]# cat >>/root/.bashrc <<EOF alias mysql..start='/usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_8306/my_8306.cnf &' alias mysql..login='/usr/local/mysql/bin/mysql --defaults-file=/data/mysql/mysql_8306/my_8306.cnf --login-path=8306_localhost_login' alias mysql..stop='/usr/local/mysql/bin/mysqladmin --login-path=8306_localhost_login shutdown' EOF [root@my1 ~]# source /root/.bash_profile
2.1.15、备份脚本
[root@my1 ~]# cat /root/all_database.sh #!/bin/bash /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 [root@my1 ~]#
2.2、主机M2上的操作
2.2.1、安装依赖包
yum clean all yum -y update yum -y install gcc gcc-c++ make autoconf automake ncurses-devel bison ncurses cmake libaio libaio-devel boost yum -y install gcc-c++ gd libxml2-devel libjpeg-devel libpng-devel net-snmp-devel wget telnet vim zip unzip yum -y install curl-devel libxslt-devel pcre-devel libjpeg libpng libcurl4-openssl-dev yum -y install libcurl-devel libcurl freetype-config freetype freetype-devel unixODBC libxslt yum -y install gcc automake autoconf libtool openssl-devel yum -y install perl-devel perl-ExtUtils-Embed yum -y install cmake ncurses-devel.x86_64 openldap-devel.x86_64 lrzsz openssh-clients gcc-g77 bison yum -y install libmcrypt libmcrypt-devel mhash mhash-devel bzip2 bzip2-devel yum -y install ntpdate rsync svn patch iptables iptables-services yum -y install libevent libevent-devel cyrus-sasl cyrus-sasl-devel yum -y install gd-devel libmemcached-devel memcached git libssl-devel libyaml-devel auto make yum -y groupinstall "Server Platform Development" "Development tools" yum -y groupinstall "Development tools"
2.2.2、下载安装
rm -rf /etc/my.cnf mkdir -p /opt/mysql cd /opt/mysql/ wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.20-linux-glibc2.12-x86_64.tar.gz tar -zxf mysql-5.7.-linux-glibc2.-x86_64.tar.gz cd /usr/local/ ln -s /opt/mysql/mysql-5.7.-linux-glibc2.-x86_64 mysql
2.2.3、创建所需要的目录
mkdir -p /data/mysql/mysql_8306/{data,logs,tmp}
2.2.4、更改权限
groupadd mysql useradd -g mysql mysql -d /home/mysql -s /sbin/nologin
2.2.5、创建my.cnf
cat >/data/mysql/mysql_8306/my_8306.cnf <<EOF #my.cnf [client] port = socket = /data/mysql/mysql_8306/tmp/mysql_8306.sock [mysql] #prompt="\u@\h:\p \R:\m:\s [\d]>" #tee=/data/mysql/mysql_8306/data/query.log #prompt="\u@\h:\p \R:\m:\s [\d]>" prompt = "[\u@\h][\d]>\_" connect_timeout = no-auto-rehash [mysqld] #misc user = mysql basedir = /usr/local/mysql datadir = /data/mysql/mysql_8306/data port = socket = /data/mysql/mysql_8306/tmp/mysql_8306.sock #timeout interactive_timeout = wait_timeout = #character set character-set-server = utf8 open_files_limit = max_connections = max_connect_errors = skip-name-resolve = #logs log-output=file slow_query_log = slow_query_log_file = /data/mysql/mysql_8306/logs/slow.log log-error = /data/mysql/mysql_8306/logs/error.log log_error_verbosity = pid-file = mysql.pid long_query_time = #log-slow-admin-statements = #log-queries-not-using-indexes = log-slow-slave-statements = #tmp tmpdir=/data/mysql/mysql_8306/tmp event_scheduler = performance_schema = on max_allowed_packet = 32M character_set_server = utf8mb4 #character_set_server = utf8 default-time-zone = system default-storage-engine = InnoDB #bind_address = 172.16.151.248 explicit_defaults_for_timestamp = #binlog binlog_format = row server-id = log-bin = /data/mysql/mysql_8306/logs/mysql-bin log-bin-index = /data/mysql/mysql_8306/logs/mysql-bin.index binlog_cache_size = 4M max_binlog_size = 1G max_binlog_cache_size = 2G sync_binlog = expire_logs_days = #replicate-wild-ignore-table=mysql.%
replicate-wild-ignore-table=test.%
replicate-wild-ignore-table=information_schema.% #relay log skip_slave_start = max_relay_log_size = 1G relay_log_purge = relay_log_recovery = log_slave_updates #slave-skip-errors=,, explicit_defaults_for_timestamp= #buffers & cache table_open_cache = table_definition_cache = table_open_cache = max_heap_table_size = 96M sort_buffer_size = 2M join_buffer_size = 2M thread_cache_size = query_cache_size = query_cache_type = query_cache_limit = 256K query_cache_min_res_unit = thread_stack = 192K tmp_table_size = 96M key_buffer_size = 8M read_buffer_size = 2M read_rnd_buffer_size = 16M bulk_insert_buffer_size = 32M #myisam myisam_sort_buffer_size = 128M myisam_max_sort_file_size = 10G myisam_repair_threads = #innodb innodb_buffer_pool_size = 10G innodb_buffer_pool_instances = innodb_data_file_path = ibdata1:1G:autoextend innodb_flush_log_at_trx_commit = innodb_log_buffer_size = 64M innodb_log_file_size = 500M innodb_log_files_in_group = innodb_max_dirty_pages_pct = innodb_file_per_table = innodb_rollback_on_timeout innodb_status_file = innodb_io_capacity = transaction_isolation = READ-COMMITTED innodb_flush_method = O_DIRECT gtid_mode = ON enforce_gtid_consistency = ON master_info_repository = TABLE relay-log-info-repository = TABLE binlog_checksum = NONE log_slave_updates = ON # Two-Master configure #server- #auto-increment-offset = #auto-increment-increment = #server- auto-increment-offset = auto-increment-increment = # semi sync replication settings # plugin_dir = /usr/local/mysql/lib/plugin #官方版本的路径 #plugin_dir = /usr/local/mysql/lib/mysql/plugin plugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so" #官方版本的路径 #plugin_load = "validate_password.so;rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so" loose_rpl_semi_sync_master_enabled = on loose_rpl_semi_sync_master_timeout = loose_rpl_semi_sync_master_trace_level = loose_rpl_semi_sync_master_wait_no_slave = on loose_rpl_semi_sync_slave_enabled = on loose_rpl_semi_sync_slave_trace_level = loose_rpl_semi_sync_master_enabled = loose_rpl_semi_sync_slave_enabled = loose_rpl_semi_sync_master_timeout = loose_rpl_semi_sync_master_wait_for_slave_count= loose_rpl_semi_sync_master_wait_point=AFTER_SYNC slave_preserve_commit_order = slave_transaction_retries = log_timestamps = system show_compatibility_56 = on slave_parallel_workers = slave_parallel_type = LOGICAL_CLOCK loose_innodb_numa_interleave = innodb_buffer_pool_dump_pct = innodb_page_cleaners = innodb_undo_log_truncate = innodb_max_undo_log_size = 2G innodb_purge_rseg_truncate_frequency = #transaction_write_set_extraction = MURMUR32 # group replication ##log-bin = mysql ##server-id = ##gtid_mode = ON ##enforce_gtid_consistency = ON ##master_info_repository = TABLE ##relay-log-info-repository = TABLE ##binlog_checksum = NONE ##log_slave_updates = ON ##binlog_format = row ##transaction_write_set_extraction=XXHASH64 ##loose-group_replication_group_name = '3db33b36-0e51-409f-a61d-c99756e90154' ##loose-group_replication_start_on_boot = off ##loose-group_replication_local_address= "10.125.141.62:28306" # 不能超过5位数字 ##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 ##loose-group_replication_bootstrap_group= off # loose-group_replication_single_primary_mode=FALSE ###本次搭建的是mutil_mode # loose-group_replication_enforce_update_everywhere_checks= TRUE [mysqld_safe] #malloc-lib=/usr/local/mysql/lib/jmalloc.so nice=- open-files-limit= EOF
2.2.6、修改目录权限
chown -R mysql.mysql /data/mysql/
2.2.7、初始化
/usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql_8306/my_8306.cnf --initialize-insecure &
2.2.8、启动
# /usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql_8306/my_8306.cnf & # 推荐的启动方式 /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_8306/my_8306.cnf &
2.2.9、登陆方式
/usr/local/mysql/bin/mysql -uroot -p -P8306 -S /data/mysql/mysql_8306/tmp/mysql_8306.sock 或者 /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
set sql_log_bin = 0;
create user 'rpl_user'@'%';
grant replication slave on *.* to 'rpl_user'@'%' identified by 'rpl_user2017';
update mysql.user set authentication_string=password('root2017') where user='root';
flush privileges;
set sql_log_bin = 1;
reset master ; reset slave all;
2.2.11、change master
CHANGE MASTER TO MASTER_HOST='172.16.210.180',MASTER_USER='rpl_user', MASTER_PASSWORD='rpl_user2017',MASTER_PORT=8306, MASTER_CONNECT_RETRY=10,MASTER_AUTO_POSITION =1; start slave; show slave status\G;
2.2.12、设置快捷登陆方式
[root@my2 local]# /usr/local/mysql/bin/mysql_config_editor set --host=localhost --login-path=8306_localhost_login \ > --user=root --port= --password --socket=/data/mysql/mysql_8306/tmp/mysql_8306.sock Enter password: [root@my2 local]# # 查看 /usr/local/mysql/bin/mysql_config_editor print --all [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
[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
[root@my2 ~]# cat >>/root/.bashrc <<EOF alias mysql..start='/usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_8306/my_8306.cnf &' alias mysql..login='/usr/local/mysql/bin/mysql --defaults-file=/data/mysql/mysql_8306/my_8306.cnf --login-path=8306_localhost_login' alias mysql..stop='/usr/local/mysql/bin/mysqladmin --login-path=8306_localhost_login shutdown' EOF [root@my2 ~]# source /root/.bash_profile
2.2.15、备份脚本
[root@my2 ~]# cat /root/all_database.sh #!/bin/bash /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 [root@my2 ~]#
三、验证同步情况
3.1、在my1中操作
[root@my1 ~]# mysql.8306.login
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 6
Server version: 5.7.20-log MySQL Community Server (GPL)
Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
[root@localhost][(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.00 sec)
[root@localhost][(none)]> create database db1;
Query OK, 1 row affected (0.01 sec)
[root@localhost][(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| db1 |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.00 sec)
[root@localhost][(none)]>
[root@localhost][(none)]> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 172.16.210.181
Master_User: rpl_user
Master_Port: 8306
Connect_Retry: 10
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 150
Relay_Log_File: my1-relay-bin.000003
Relay_Log_Pos: 4
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 150
Relay_Log_Space: 721
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: NULL
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 0
Master_UUID: d14b54b4-de49-11e7-96ea-8ae132e2dda2
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set: ce20a632-de49-11e7-9587-c2c763ed137c:1
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
ERROR:
No query specified
[root@localhost][(none)]>
3.2、在my2中操作
[root@my2 local]# mysql.8306.login
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 32
Server version: 5.7.20-log MySQL Community Server (GPL)
Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
[root@localhost][(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| db1 |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.00 sec)
[root@localhost][(none)]> create database db2;
Query OK, 1 row affected (0.00 sec)
[root@localhost][(none)]> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 172.16.210.180
Master_User: rpl_user
Master_Port: 8306
Connect_Retry: 10
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 303
Relay_Log_File: my2-relay-bin.000003
Relay_Log_Pos: 508
Relay_Master_Log_File: mysql-bin.000003
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 303
Relay_Log_Space: 910
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1808306
Master_UUID: ce20a632-de49-11e7-9587-c2c763ed137c
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: ce20a632-de49-11e7-9587-c2c763ed137c:1
Executed_Gtid_Set: ce20a632-de49-11e7-9587-c2c763ed137c:1,
d14b54b4-de49-11e7-96ea-8ae132e2dda2:1
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
ERROR:
No query specified
同步正常
四、同步故障处理举例
# gtid故障处理
模拟在从库删除库，然后再在主库删除该库，报如下错误
Last_SQL_Error: Error 'Can't drop database 'db1'; database doesn't exist' on query. Default database: 'db1'. Query: 'drop database db1'
Replicate_Ignore_Server_Ids:
Master_Server_Id: 628306
Master_UUID: 11526eb0-fcbc-11e6-af7d-005056b937e2
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp: 170227 15:44:06
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: 11526eb0-fcbc-11e6-af7d-005056b937e2:1-2
Executed_Gtid_Set: 11526eb0-fcbc-11e6-af7d-005056b937e2:1,
1760a7a5-fcbc-11e6-8f14-005056b90358:1
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
处理方法：
stop slave;
set gtid_next='11526eb0-fcbc-11e6-af7d-005056b937e2:2';
begin;
commit;
set gtid_next='automatic';
start slave;
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
yum install -y pcre-devel openssl-devel popt-devel libnl-* libn*#安装依赖包
# 将keepalived配置成系统服务
wget http://www.keepalived.org/software/keepalived-1.2.7.tar.gz
tar zxvf keepalived-1.2..tar.gz
cd keepalived-1.2.
./configure --prefix=/usr/local/keepalived
make && make install
cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
mkdir /etc/keepalived/
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
chmod +x /etc/init.d/keepalived
# server1
cat >/etc/keepalived/keepalived.conf <<EOF
! Configuration File forkeepalived
global_defs {
# notification_email {
# test@sina.com
# }
# notification_email_from admin@test.com
# smtp_server 127.0.0.1
# smtp_connect_timeout
router_id MYSQL_HA18 #标识，双主相同
}
vrrp_instance VI_1 {
state BACKUP #两台都设置BACKUP
interface eth0
virtual_router_id #主备相同
priority #优先级，backup设置90
advert_int
nopreempt #不主动抢占资源，只在master这台优先级高的设置，backup不设置
authentication {
auth_type PASS
auth_pass
}
virtual_ipaddress {
172.16.210.183
}
}
virtual_server 172.16.210.183 {
delay_loop
#lb_algo rr #LVS算法，用不到，我们就关闭了
#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
persistence_timeout #同一IP的连接60秒内被分配到同一台真实服务器
protocol TCP
real_server 172.16.210.180 { #检测本地mysql，backup也要写检测本地mysql
weight
notify_down /usr/local/keepalived/mysql.sh #当mysq服down时，执行此脚本，杀死keepalived实现切换
TCP_CHECK {
connect_timeout #连接超时
nb_get_retry #重试次数
delay_before_retry #重试间隔时间
}
}
EOF
cat >/usr/local/keepalived/mysql.sh <<EOF
#!/bin/bash
pkill keepalived
EOF
chmod +x /usr/local/keepalived/mysql.sh
chmod +x /etc/init.d/keepalived
/etc/init.d/keepalived start
5.2、在my2中的操作
yum install -y pcre-devel openssl-devel popt-devel libnl-* libn*#安装依赖包
# 将keepalived配置成系统服务
wget http://www.keepalived.org/software/keepalived-1.2.7.tar.gz
tar zxvf keepalived-1.2..tar.gz
cd keepalived-1.2.
./configure --prefix=/usr/local/keepalived
make && make install
cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
mkdir /etc/keepalived/
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
chmod +x /etc/init.d/keepalived
# server2
cat >/etc/keepalived/keepalived.conf <<EOF
cat /etc/keepalived/keepalived.conf
! Configuration File forkeepalived
global_defs {
# notification_email {
# test@sina.com
# }
# notification_email_from admin@test.com
# smtp_server 127.0.0.1
# smtp_connect_timeout
router_id MYSQL_HA18 #标识，双主相同
}
vrrp_instance VI_1 {
state BACKUP #两台都设置BACKUP
interface eth0
virtual_router_id #主备相同
priority #优先级，backup设置90
advert_int
#nopreempt #不主动抢占资源，只在master这台优先级高的设置，backup不设置
authentication {
auth_type PASS
auth_pass
}
virtual_ipaddress {
172.16.210.183
}
}
virtual_server 172.16.210.183 {
delay_loop
#lb_algo rr #LVS算法，用不到，我们就关闭了
#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
persistence_timeout #同一IP的连接60秒内被分配到同一台真实服务器
protocol TCP
real_server 172.16.210.181 { #检测本地mysql，backup也要写检测本地mysql
weight
notify_down /usr/local/keepalived/mysql.sh #当mysq服down时，执行此脚本，杀死keepalived实现切换
TCP_CHECK {
connect_timeout #连接超时
nb_get_retry #重试次数
delay_before_retry #重试间隔时间
}
}
EOF
cat >/usr/local/keepalived/mysql.sh <<EOF
#!/bin/bash
pkill keepalived
EOF
chmod +x /usr/local/keepalived/mysql.sh
chmod +x /etc/init.d/keepalived
/etc/init.d/keepalived start
六、测试高可用性
6.1、启动my1的keeplive服务
[root@my1 ~]# /etc/init.d/keepalived start Starting keepalived: [ OK ] [root@my1 ~]# [root@my1 ~]# tail /var/log/messages Dec :: localhost Keepalived_healthcheckers[]: IPVS: Service not defined Dec :: localhost Keepalived_healthcheckers[]: Using LinkWatch kernel netlink reflector... Dec :: localhost Keepalived_healthcheckers[]: Activating healthchecker for service [172.16.210.180]: Dec :: localhost kernel: IPVS: Scheduler module ip_vs_ not found Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Transition to MASTER STATE Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Entering MASTER STATE Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) setting protocol VIPs. Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183 Dec :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP 172.16.210.183 added Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183 [root@my1 ~]#
6.2、启动my2的keeplived服务
[root@my2 ~]# /etc/init.d/keepalived start Starting keepalived: [ OK ] [root@my2 ~]# [root@my2 ~]# tail /var/log/messages Dec :: localhost Keepalived_healthcheckers[]: Opening file '/etc/keepalived/keepalived.conf'. Dec :: localhost Keepalived_healthcheckers[]: Configuration is using : Bytes Dec :: localhost Keepalived_vrrp[]: Using LinkWatch kernel netlink reflector... Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Entering BACKUP STATE Dec :: localhost Keepalived_vrrp[]: VRRP sockpool: [ifindex(), proto(), fd(,)] Dec :: localhost Keepalived_healthcheckers[]: IPVS: Scheduler not found Dec :: localhost Keepalived_healthcheckers[]: IPVS: Service not defined Dec :: localhost Keepalived_healthcheckers[]: Using LinkWatch kernel netlink reflector... Dec :: localhost Keepalived_healthcheckers[]: Activating healthchecker for service [172.16.210.181]: Dec :: localhost kernel: IPVS: Scheduler module ip_vs_ not found [root@my2 ~]#
6.3、关闭my1的mysql服务
[root@my1 ~]# ps -ef|grep mysql root : pts/ :: grep mysql root Dec11 ? :: /bin/sh /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_8306/my_8306.cnf 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= [root@my1 ~]# mysql..stop [root@my1 ~]# ps -ef|grep mysql root : pts/ :: grep mysql [root@my1 ~]# # 查看my1的日志 [root@my1 ~]# tail - /var/log/messages Dec :: localhost Keepalived_healthcheckers[]: IPVS: Service not defined Dec :: localhost Keepalived_healthcheckers[]: Using LinkWatch kernel netlink reflector... Dec :: localhost Keepalived_healthcheckers[]: Activating healthchecker for service [172.16.210.180]: Dec :: localhost kernel: IPVS: Scheduler module ip_vs_ not found Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Transition to MASTER STATE Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Entering MASTER STATE Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) setting protocol VIPs. Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183 Dec :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP 172.16.210.183 added Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183 Dec :: localhost Keepalived_healthcheckers[]: TCP connection to [172.16.210.180]: failed !!! Dec :: localhost Keepalived_healthcheckers[]: Removing service [172.16.210.180]: from VS [172.16.210.183]: Dec :: localhost Keepalived_healthcheckers[]: IPVS: Service not defined Dec :: localhost Keepalived_healthcheckers[]: Executing [/usr/local/keepalived/mysql.sh] for service [172.16.210.180]: in VS [172.16.210.183]: Dec :: localhost Keepalived_healthcheckers[]: Lost quorum -= > for VS [172.16.210.183]: Dec :: localhost Keepalived[]: Stopping Keepalived v1.2.7 (/,) Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) sending priority Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) removing protocol VIPs. Dec :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP 172.16.210.183 removed Dec :: localhost Keepalived_healthcheckers[]: IPVS: No such service [root@my1 ~]#
6.4、查看my2的日志及其vip情况
[root@my2 ~]# ip add
: lo: <LOOPBACK,UP,LOWER_UP> mtu qdisc noqueue state UNKNOWN
link/loopback ::::: brd :::::
inet 127.0.0.1/ scope host lo
inet6 ::/ scope host
valid_lft forever preferred_lft forever
: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether 8a:e1::e2:dd:a2 brd ff:ff:ff:ff:ff:ff
inet 172.16.210.181/ brd 172.16.210.255 scope global eth0
inet 172.16.210.183/ scope global eth0
inet6 fe80::88e1:32ff:fee2:dda2/ scope link
valid_lft forever preferred_lft forever
: eth1: <BROADCAST,MULTICAST> mtu qdisc noop state DOWN qlen
link/ether f6:da:a4:::cc brd ff:ff:ff:ff:ff:ff
[root@my2 ~]#
[root@my2 ~]# tail - /var/log/messages
Dec :: localhost Keepalived_vrrp[]: No such interface, eth1
Dec :: localhost Keepalived_vrrp[]: Netlink reflector reports IP 172.16.210.181 added
Dec :: localhost Keepalived_vrrp[]: Netlink reflector reports IP fe80::88e1:32ff:fee2:dda2 added
Dec :: localhost Keepalived_vrrp[]: Registering Kernel netlink reflector
Dec :: localhost Keepalived_vrrp[]: Registering Kernel netlink command channel
Dec :: localhost Keepalived_vrrp[]: Registering gratuitous ARP shared channel
Dec :: localhost Keepalived_healthcheckers[]: Interface queue is empty
Dec :: localhost Keepalived_healthcheckers[]: No such interface, eth1
Dec :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP 172.16.210.181 added
Dec :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP fe80::88e1:32ff:fee2:dda2 added
Dec :: localhost Keepalived_healthcheckers[]: Registering Kernel netlink reflector
Dec :: localhost Keepalived_healthcheckers[]: Registering Kernel netlink command channel
Dec :: localhost Keepalived_vrrp[]: Opening file '/etc/keepalived/keepalived.conf'.
Dec :: localhost Keepalived_vrrp[]: Configuration is using : Bytes
Dec :: localhost Keepalived_healthcheckers[]: Opening file '/etc/keepalived/keepalived.conf'.
Dec :: localhost Keepalived_healthcheckers[]: Configuration is using : Bytes
Dec :: localhost Keepalived_vrrp[]: Using LinkWatch kernel netlink reflector...
Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Entering BACKUP STATE
Dec :: localhost Keepalived_vrrp[]: VRRP sockpool: [ifindex(), proto(), fd(,)]
Dec :: localhost Keepalived_healthcheckers[]: IPVS: Scheduler not found
Dec :: localhost Keepalived_healthcheckers[]: IPVS: Service not defined
Dec :: localhost Keepalived_healthcheckers[]: Using LinkWatch kernel netlink reflector...
Dec :: localhost Keepalived_healthcheckers[]: Activating healthchecker for service [172.16.210.181]:
Dec :: localhost kernel: IPVS: Scheduler module ip_vs_ not found
Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Transition to MASTER STATE
Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Entering MASTER STATE
Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) setting protocol VIPs.
Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183
Dec :: localhost Keepalived_healthcheckers[]: Netlink reflector reports IP 172.16.210.183 added
Dec :: localhost Keepalived_vrrp[]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.210.183
[root@my2 ~]#
表明已经切换完成。
七、系统参数优化配置
7.1、系统配置
#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: echo never > /sys/kernel/mm/transparent_hugepage/enabled echo never > /sys/kernel/mm/transparent_hugepage/defrag echo deadline > /sys/block/sda/queue/scheduler echo "" > /sys/block/sda/queue/read_ahead_kb echo "" > /sys/block/sda/queue/nr_requests #减少预读：/sys/block/sda/queue/read_ahead_kb，默认128，调整为16 #增大队列：/sys/block/sda/queue/nr_requests，默认128，调整为512 echo "" > /sys/block/sda/queue/read_ahead_kb echo "" > /sys/block/sda/queue/nr_requests #如果是使用普通SAS盘的话,使用elevator=deadline #如果是使用SSD/FLASH卡的话,使用elevator=noop echo noop > /sys/block/sda/queue/scheduler echo deadline > /sys/block/sda/queue/scheduler #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 cat >> /etc/rc.local <<EOF #echo noop > /sys/block/sda/queue/scheduler echo deadline > /sys/block/sda/queue/scheduler echo never > /sys/kernel/mm/transparent_hugepage/enabled echo never > /sys/kernel/mm/transparent_hugepage/defrag echo "" > /sys/block/sda/queue/read_ahead_kb echo "" > /sys/block/sda/queue/nr_requests if test -f /sys/kernel/mm/transparent_hugepage/enabled; then echo never > /sys/kernel/mm/transparent_hugepage/enabled fi if test -f /sys/kernel/mm/transparent_hugepage/defrag; then echo never > /sys/kernel/mm/transparent_hugepage/defrag fi EOF # 修改目录权限 chown -R mysql.mysql /data/mysql/
7.2、修改系统内核参数
cat >> /etc/sysctl.conf <<EOF fs.file-max= fs.aio-max-nr = kernel.sem = kernel.shmmax = kernel.shmall = kernel.shmmni = net.ipv4.ip_local_port_range = net.ipv4.tcp_mem = net.core.wmem_default = net.core.rmem_default = net.core.rmem_max = net.core.wmem_max = net.ipv4.tcp_rmem = net.ipv4.tcp_wmem = net.core.netdev_max_backlog = net.ipv4.tcp_tw_recycle = net.ipv4.tcp_tw_reuse = net.ipv4.tcp_fin_timeout = net.ipv4.tcp_keepalive_time = net.ipv4.tcp_max_syn_backlog = net.ipv4.tcp_syncookies = net.ipv4.tcp_timestamps = net.ipv4.conf.default.accept_source_route = vm.swappiness= EOF sysctl -p echo "" >/proc/sys/net/ipv4/conf/lo/arp_ignore echo "" >/proc/sys/net/ipv4/conf/lo/arp_announce echo "" >/proc/sys/net/ipv4/conf/all/arp_ignore 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
yum -y install vim telnet unzip zip lrzsz hostname dev_test sed -i 's/HOSTNAME=localhost.localdomain/HOSTNAME=dev_test/g' /etc/sysconfig/network sed -n '/HOSTNAME/p' /etc/sysconfig/network
2、关闭selinux
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config setenforce
3、关闭防火墙
/etc/init.d/iptables stop cat >>/etc/rc.local <<EOF /etc/init.d/iptables stop EOF
4、修改网卡ip信息
cat >/etc/sysconfig/network-scripts/ifcfg-eth0 <<EOF TYPE=Ethernet BOOTPROTO=static NAME=eth0 DEVICE=eth0 ONBOOT=yes IPADDR=172.16.210.111 NETMASK=255.255.255.0 GATEWAY=172.16.210.250 EOF
5、重启网卡服务
/etc/init.d/network restart
6、修改dns
cat >/etc/resolv.conf <<EOF nameserver 172.16.110.11 nameserver 8.8.8.8 EOF
7、系统初始化配置
7.1、关闭SELINUX
#修改配置文件,重启服务后永久生效。 sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config #命令行设置立即生效 setenforce
7.2、防火墙设置
cat >>/etc/rc.local <<EOF /etc/init.d/iptables stop EOF cp /etc/sysconfig/iptables /root/iptables.bak cat >/etc/sysconfig/iptables <<EOF # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter :INPUT DROP [:] :FORWARD ACCEPT [:] :OUTPUT ACCEPT [:] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -p tcp -m tcp --dport -j ACCEPT -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT EOF /etc/init.d/iptables restart
7.3、安装基础依赖包
# yum -y install gcc-c++ gd libxml2-devel libjpeg-devel libpng-devel net-snmp-devel wget telnet vim zip unzip # yum -y install curl-devel libxslt-devel pcre-devel libjpeg libpng libxml2 libcurl4-openssl-dev # yum -y install libcurl-devel libcurl freetype-config freetype freetype-devel unixODBC libxslt yum clean all yum -y update yum -y install gcc-c++ gd libxml2-devel libjpeg-devel libpng-devel net-snmp-devel wget telnet vim zip unzip yum -y install curl-devel libxslt-devel pcre-devel libjpeg libpng libcurl4-openssl-dev yum -y install libcurl-devel libcurl freetype-config freetype freetype-devel unixODBC libxslt yum -y install gcc automake autoconf libtool openssl-devel yum -y install perl-devel perl-ExtUtils-Embed yum -y install cmake ncurses-devel.x86_64 openldap-devel.x86_64 lrzsz openssh-clients gcc-g77 bison yum -y install libmcrypt libmcrypt-devel mhash mhash-devel bzip2 bzip2-devel yum -y install ntpdate rsync svn patch iptables iptables-services yum -y install libevent libevent-devel cyrus-sasl cyrus-sasl-devel yum -y install gd-devel libmemcached-devel memcached git libssl-devel libyaml-devel auto make yum -y groupinstall "Server Platform Development" "Development tools" yum -y groupinstall "Development tools" 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 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
cat >/root/ntp.sh <<EOF #!/bin/bash # ntp.sh #NTP服务器数组列表 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
)
#校验#
serverNum=`echo \${#ntpServer[*]}`
NUM=
for ((i=; i<=\$serverNum; i++)); do
echo -n "正在和NTP服务器:\${ntpServer[\$NUM]}校验中..."
/usr/sbin/ntpdate \${ntpServer[\$NUM]} >> /dev/null >&
if [ \$? -eq ]; then
echo -e "\e[1;32m\t[成功]\e[0m"
echo -e "\e[1;32m同步成功,退出......\e[0m"
break
else
echo -e "\e[1;31m\t[失败]\e[0m"
echo -e "\e[1;31m继续同步下一个!!!!!\e[0m"
let NUM++
fi
sleep
done
EOF
chmod +x /root/ntp.sh
sh /root/ntp.sh
cat >>/etc/crontab <<EOF
* * * * /root/ntp.sh
# */ * * /bin/bash /root/cutlog.sh
EOF
MySQL双主+keeplived安装部署说明的更多相关文章
- Mysql双主互备+keeplived高可用架构介绍
一.Mysql双主互备+keeplived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 ...
- Mysql双主互备+keeplived高可用架构（部分）
一.Mysql双主互备+keeplived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 ...
- 高可用Mysql架构_Mycat集群部署(HAProxy + 两台Mycat+Mysql双主双从）
既然大家都知道了Mysql分布式在大型网站架构中的作用,在这里就不再阐述.本片博客文章是基于我曾经搭建过的一个Mysql集群基础上实现的,实现过双主热备.读写分离.分库分表. 博客链接:http:// ...
- MYSQL 双主配置
MYSQL1. 版本号:5.7.243. 部署方式:双主部署,两台机器即是主又是备 ,双向拷贝,可以同时写入.4. 安装部署路径: a) /home/softb) 配置路径 /etc/my.cnfc) ...
- linux环境下配置mysql双主复制
简单来说,双主复制就是让两台mysql服务器中的数据保持同步,可以用来实现灾备和负载均衡 主机1 IP:192.168.200.128 主机2 IP:192.168.200.131 两台主机系统均为c ...
- mysql双主+keepalived【转】
简单原理 1.在两台服务器上分别部署双主keepalived,主keepalived会在当前服务器配置虚拟IP用于mysql对外提供服务 2.在两台服务器上分别部署主主mysql,用于故障切换 3.当 ...
- MySQL 高可用性—keepalived+mysql双主（有详细步骤和全部配置项解释）
博主QQ:819594300 博客地址:http://zpf666.blog.51cto.com/ 有什么疑问的朋友可以联系博主,博主会帮你们解答,谢谢支持! 前言:生产环境中一台mysql主机存在单 ...
- keepalived+MySQL双主搭建
keepalived+MySQL双主搭建过程 首先要简单了解一下keepalived: Keepalived是Linux下一个轻量级别的高可用解决方案.高可用(High Avalilability,H ...
- nginx+mysql双主搭建
说明:mysql双主架构经过测试在生产环境中使用没有问题,但是还是建议使用读写分离, Mysql主主同步环境部署: centos 7.4 三台云主机:mysql1 :10.1.1.142 mysql2 ...
随机推荐
- Keepalived+LVS高可用负载均衡集群
概述 Keepalived是专门针对LVS设计的一款强大的辅助工具,主要用来提供故障切换(Failover)和健康检查(HeathChecking)功能——判断LVS负载调度器.节点服务器的可用性,及 ...
- Android环境搭建（大学授课课件）
前面一直没有提过如何搭建Android开发环境,其实这些网上一大堆,随便一搜就是很多大神的详细介绍.本人过于懒惰,拿出大学授课课件供大家参考.非原创 位) 下载地址: sdk:http://pan ...
- BZOJ 1977 严格次小生成树(算竞进阶习题)
树上倍增+kruskal 要找严格次小生成树,肯定先要找到最小生成树. 我们先把最小生成树的边找出来建树,然后依次枚举非树边,容易想到一种方式: 对于每条非树边(u,v),他会与树上的两个点构成环,我 ...
- python中的logging模块学习
Python的logging模块 Logging的基本信息: l 默认的情况下python的logging模块打印到控制台,只显示大于等于warning级别的日志 l 日志级别:critical ...
- Jdk1.6编译，1.7执行，1.7中没有需要的类，为何不会报错
今天发现一个非常奇怪的问题 import sun.misc.BASE64Decoder; 我在本地引入了jdk1.6中的包,编译也用1.6没问题,但是实际上jdk1.7并没有这个包.在Linu ...
- [国家集训队]排队 [cdq分治]
题面 洛谷 和动态逆序对那道题没有什么区别 把一个交换换成两个删除和两个插入 #include <cstdio> #include <cstdlib> #include < ...
- Hdoj 1785.You Are All Excellent 题解
Problem Description 本次集训队共有30多人参加,毫无疑问,你们都是很优秀的,但是由于参赛名额有限,只能选拔部分队员参加省赛.从学校的角度,总是希望选拔出最优秀的18人组成6支队伍来 ...
- [luogu1486][bzoj1503][NOI2004]郁闷的出纳员【平衡树treap】
题目描述 OIER公司是一家大型专业化软件公司,有着数以万计的员工.作为一名出纳员,我的任务之一便是统计每位员工的工资.这本来是一份不错的工作,但是令人郁闷的是,我们的老板反复无常,经常调整员工的工资 ...
- 【bfs】迷宫问题
[题目描述] 定义一个二维数组: int maze[5][5] = { 0,1,0,0,0, 0,1,0,1,0, 0,0,0,0,0, 0,1,1,1,0, 0,0,0,1,0, }; 它表示一个迷 ...
- docker镜像操作
1.获取镜像 docker pull NAME[:TAG] 如果不显式地指定TAG,则默认会选择latest标签,即下载仓库中最新版本的镜像.//获取最新镜像docker pull ubuntu // ...