Mysql主從複製的實現
MySQL是一個開放源碼的小型關聯式數據庫管理系統，開發者爲瑞典MySQL AB公司。MySQL被普遍地應用在Internet上的中小型網站中。因爲其體積小、速度快、整體擁有成本低，尤爲是開放源碼這一特色，許多中小型網站爲了下降網站整體擁有成本而選擇了MySQL做爲網站數據庫。Mysql內建的複製功能是構建大型、高性能應用程序的基礎；將Mysql的數據分佈到多個系統上，而這種分佈的機制是經過將一臺Mysql服務器的數據複製到其餘主機(slave)上，由slave主機讀取Master服務器的二進制日誌文件而後從新在本地執行一遍來實現。作Mysql主從複製時，全部更新操做都只能在Master服務器，而Slave服務只負責更新本身的數據並提供查詢操做。mysql
Mysql複製主要能解決的有問題有：數據的分佈、負載均衡、數據備份、高可用以及容錯性。sql
Mysql的複製原理基本上能夠分爲如下3步：數據庫
1.在Master服務器將改變的數據記錄到二進制日誌(binary log)中（這些記錄叫作二進制日誌事件）緩存
2.Slave服務器將Master服務器上的二進制日誌拷貝到本身的中繼日誌(relay-log)中安全
3.Slave服務器讀取中繼日誌中的事件，而後將改變的數據寫入到本身的數據庫中服務器
第1步：在Master服務器上記錄二進制日誌。在每一個更新數據的事務完成以前，Master服務器都會將數據更改記錄到二進制日誌中。即便事務在執行期間是交錯的，Mysql也會串行地將事務寫入到二進制日誌中。在把事件寫入二進制日誌以後，Master服務器告訴存儲引擎能夠提交事務了網絡
第2步：Slave服務器把主服務器的二進制日誌拷貝到本身的硬盤上，進入所謂的「中繼日誌」中。首先，它啓動一個工做線程，叫I/O線程，這個I/O線程開啓一個普通的客戶端鏈接，而後啓動一個特殊的二進制日誌轉儲進程（它沒有相應的SQL命令）。這個轉儲進程Master服務器的二進制日誌中讀取數據。它不會對事件進行輪詢。若是3跟上了Master服務器，就會進入休眠狀態並等待有新的事件發生時Master服務器發出的信號。I/O線程把數據寫入Slave服務器的中繼日誌中app
第3步：SQL線程讀取中繼日誌，而且重放其中的事件，而後更新Slave服務器的數據。因爲這個線程能跟上I/O線程，中繼日誌一般在操做系統的緩存中，因此中繼日誌的開銷很低。SQL線程執行事件也能夠被寫入Slave服務器本身的二進制日誌中，它對於有些場景很實用負載均衡
上圖中顯示了在Slave服務器有兩個運行的線程，在Master服務器上也有一個運行的線程：和其餘普通鏈接同樣，由Slave服務器發起的鏈接，在Master服務器上一樣擁有一個線程。socket
系統環境及拓撲
系統版本：CentOS 6.3_x86_64
Mysql版本：mysql-5.6.17
下載地址：http://cdn.mysql.com/Downloads/MySQL-5.6/mysql-5.6.17.tar.gz
1.準備工做
1.1修改master、slave主機名
master主機名:mysql_master
slave主機名：mysql_slave
1.2在master和slave上配置主機名解析
# cat >> /etc/hosts << EOF 172.16.10.72 mysql_master master 172.16.10.61 mysql_slave slave EOF
1.3時間同步
# yum install -y ntpdate # ntpdate ntp.fudan.edu.cn # crontab -e 1 * * * * /usr/sbin/ntpdate ntp.fudan.edu.cn
2.安裝Mysql（master與slave分別進行）
# groupadd mysql # useradd -s /sbin/nologin -g mysql mysql # tar xf mysql-5.6.17.tar.gz # cd mysql-5.6.17# cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql # make && make install# chown -R mysql.mysql /usr/local/mysql # cd /usr/local/mysql/scripts/ # ./mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data #初始化mysql數據庫，#指定mysql數據文件的存放位置 # cd .. # cd support-files/# cp mysql.server /etc/rc.d/init.d/mysql # cp my-default.cnf /etc/my.cnf # chkconfig --add mysql # chkconfig mysql on # service mysql start Starting MySQL..... SUCCESS!# ln -s /usr/local/mysql/bin/* /usr/bin/
cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql遇到報錯以下：
- Could NOT find Curses (missing: CURSES_LIBRARY CURSES_INCLUDE_PATH) CMake Error at cmake/readline.cmake:85 (MESSAGE): Curses library not found. Please install appropriate package, remove CMakeCache.txt and rerun cmake.On Debian/Ubuntu, package name is libncurses5-dev, on Redhat and derivates it is ncurses-devel. Call Stack (most recent call first): cmake/readline.cmake:128 (FIND_CURSES) cmake/readline.cmake:202 (MYSQL_USE_BUNDLED_EDITLINE) CMakeLists.txt:411 (MYSQL_CHECK_EDITLINE) -- Configuring incomplete, errors occurred!
解決辦法：
yum -y install ncurses-devel
find / -name CMakeCache.txt|xargs rm -f
而後從新執行cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql
3.配置主從複製
3.1
在master上創建用於slave服務器複製數據的賬戶
[root@mysql_master ~]# mysql mysql> GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* to eivll0m@'172.16.10.61' IDENTIFIED by 'password'; Query OK, 0 rows affected (0.10 sec) mysql> FLUSH PRIVILEGES; Query OK, 0 rows affected (0.06 sec) mysql> SHOW GRANTS FOR eivll0m@'172.16.10.61'; +---------------------------------------------------------------------------------------------------------------------------------------------------+ | Grants for eivll0m@172.16.10.61 | +---------------------------------------------------------------------------------------------------------------------------------------------------+ | GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'eivll0m'@'172.16.10.61' IDENTIFIED BY PASSWORD '*2470C0C06DEE42FD1618BB99005ADCA2EC9D1E19' | +---------------------------------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.02 sec)
3.2在Slave服務器上使用受權用戶鏈接測試
[root@mysql_slave ~]# mysql -ueivll0m -ppassword -h 172.16.10.72 Warning: Using a password on the command line interface can be insecure. ERROR 2003 (HY000): Can't connect to MySQL server on '172.16.10.72' (113) #報錯緣由爲master服務器iptables阻止了slave的鏈接，暫時先關閉便可 [root@mysql_slave ~]# mysql -ueivll0m -ppassword -h 172.16.10.72 Warning: Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.6.17 Source distribution Copyright (c) 2000, 2014, 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. mysql>
3.3編輯master上的my.cnf，修改或增長如下內容：
basedir = /usr/local/mysql datadir = /usr/local/mysql/data port = 3306 server_id = 1 socket = /tmp/mysql.sock log-bin = mysql-bin log_bin_index = mysql_bin.index binlog_format = mixed innodb_flush_log_at_trx_commit=1
重啓mysqld服務
[root@mysql_master ~]# service mysqld restart
3.4編輯slave上的my.cnf，修改或增長如下內容：
basedir = /usr/local/mysql datadir = /usr/local/mysql/data port = 3306 server_id = 2 socket = /tmp/mysql.sock skip_slave_start = 1 read_only = 1 relay_log = relay_log relay_log_index = relay_log.index
重啓mysqld服務
[root@mysql_slave ~]# service mysqld restart
3.5.查看master服務器的二進制日誌及二進制日誌事件位置
[root@mysql_master ~]# mysql -e 'SHOW MASTER STATUS;' +------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------+ | mysql-bin.000003 | 120 | | | | +------------------+----------+--------------+------------------+-------------------+
File：表示今後日誌開始複製
Position：表示從這個事件開始複製
3.6在Slave服務器上同步Master服務器上面的數據
mysql> CHANGE MASTER TO MASTER_HOST='mysql_master',MASTER_USER='eivll0m',MASTER_PASSWORD='password',MASTER_PORT=3306,MASTER_LOG_FILE='mysql-bin.000003',MASTER_LOG_POS=120,MASTER_CONNECT_RETRY=60;
3.7啓動slave服務器的複製線程並查看狀態
mysql> START SLAVE; mysql> SHOW SLAVE STATUS\G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: mysql_master Master_User: eivll0m Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000003 Read_Master_Log_Pos: 120 Relay_Log_File: relay_log.000002 Relay_Log_Pos: 283 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: 120 Relay_Log_Space: 450 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: 1 Master_UUID: 988cd54d-c1a7-11e3-b1a5-000c29c976ef Master_Info_File: /usr/local/mysql/data/master.info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it 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: Auto_Position: 0 1 row in set (0.00 sec)
3.8在slave服務器查看啓動的線程
[root@mysql_slave ~]# mysql -e 'SHOW PROCESSLIST;' +----+-------------+-----------+------+---------+------+-----------------------------------------------------------------------------+------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+-------------+-----------+------+---------+------+-----------------------------------------------------------------------------+------------------+ | 5 | system user | | NULL | Connect | 102 | Waiting for master to send event | NULL | | 6 | system user | | NULL | Connect | 102 | Slave has read all relay log; waiting for the slave I/O thread to update it | NULL | | 8 | root | localhost | NULL | Query | 0 | init | SHOW PROCESSLIST | +----+-------------+-----------+------+---------+------+-----------------------------------------------------------------------------+------------------+
3.9驗證：在saster服務器建立數據庫，在slave服務器上驗證是否複製過去
[root@mysql_master ~]# mysql -e 'CREATE DATABASE eivll0m;' [root@mysql_master ~]# mysql -e 'SHOW DATABASES;' +--------------------+ | Database | +--------------------+ | information_schema | | eivll0m | | mysql | | performance_schema | | test | +--------------------+
[root@mysql_slave ~]# mysql -e 'SHOW DATABASES;' #能夠看到eimll0m數據庫已經複製過去 +--------------------+ | Database | +--------------------+ | information_schema | | eivll0m | | mysql | | performance_schema | | test | +--------------------+
3.10在主從服務器查看二進制日誌事件位置是否更新
[root@mysql_master ~]# mysql -e 'SHOW MASTER STATUS;' +------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------+ | mysql-bin.000003 | 223 | | | | +------------------+----------+--------------+------------------+-------------------+
[root@mysql_slave ~]# mysql -e 'SHOW SLAVE STATUS\G;' | grep "Read_Master_Log_Pos" Read_Master_Log_Pos: 223
因而可知，已經更新。
4.配置基於SSL的複製
因爲Mysql的主從複製是明文傳送的，若是在生產環境中跨網絡使用主從仍是明文傳送，就沒法保證數據的傳輸安全性，爲了解決這一問題，咱們須要加密進行傳送，也就是基於SSL的加密方法進行傳輸數據。
4.1在master服務器搭建CA服務器
[root@mysql_master ~]# cd /etc/pki/CA/ [root@mysql_master CA]# (umask 077;openssl genrsa -out private/cakey.pem 2048) [root@mysql_master CA]# openssl req -new -x509 -key private/cakey.pem -out cacert.pem -days 365 You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [XX]:CN State or Province Name (full name) []:BeiJing Locality Name (eg, city) [Default City]:ChaoYang Organization Name (eg, company) [Default Company Ltd]:eivll0m Organizational Unit Name (eg, section) []:Tech Common Name (eg, your name or your server's hostname) []:mysql_master Email Address []:master@eivll0m.com [root@mysql_master CA]# touch index.txt [root@mysql_master CA]# echo 01 > serial
4.2爲master建立證書申請並由CA服務器簽發證書
[root@mysql_master ~]# mkdir /usr/local/mysql/ssl [root@mysql_master ssl]# cd /usr/local/mysql/ssl [root@mysql_master ssl]# (umask 077;openssl genrsa -out master.key 2048) [root@mysql_master ssl]# openssl req -new -key master.key -out master.csr -days 365 You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [XX]:CN State or Province Name (full name) []:BeiJing Locality Name (eg, city) [Default City]:ChaoYang Organization Name (eg, company) [Default Company Ltd]:eivll0m Organizational Unit Name (eg, section) []:Tech Common Name (eg, your name or your server's hostname) []:mysql_master Email Address []:master@eivll0m.com Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []:
[root@mysql_master ssl]# openssl ca -in master.csr -out master.crt -days 365 Using configuration from /etc/pki/tls/openssl.cnf Check that the request matches the signature Signature ok Certificate Details: Serial Number: 1 (0x1) Validity Not Before: Apr 22 15:52:49 2014 GMT Not After : Apr 22 15:52:49 2015 GMT Subject: countryName = CN stateOrProvinceName = BeiJing organizationName = eivll0m organizationalUnitName = Tech commonName = mysql_master emailAddress = master@eivll0m.com X509v3 extensions: X509v3 Basic Constraints: CA:FALSE Netscape Comment: OpenSSL Generated Certificate X509v3 Subject Key Identifier: A7:4D:33:91:61:CD:92:5E:72:2A:8E:A6:56:15:6A:AB:FA:22:20:98 X509v3 Authority Key Identifier: keyid:0F:79:D1:B8:1C:63:4B:91:A6:17:9F:B4:6D:A3:C7:96:AA:29:5E:48 Certificate is to be certified until Apr 22 15:52:49 2015 GMT (365 days) Sign the certificate? [y/n]:y 1 out of 1 certificate requests certified, commit? [y/n]y Write out database with 1 new entries Data Base Updated
4.3爲slave服務器建立證書申請
[root@mysql_slave ~]# mkdir /usr/local/mysql/ssl [root@mysql_slave ~]# cd /usr/local/mysql/ssl [root@mysql_slave ~]# (umask 077;openssl genrsa -out slave.key 2048) [root@mysql_slave ssl]# openssl req -new -key slave.key -out slave.csr -days 365 You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [XX]:CN State or Province Name (full name) []:BeiJing Locality Name (eg, city) [Default City]:ChaoYang Organization Name (eg, company) [Default Company Ltd]:eivll0m Organizational Unit Name (eg, section) []:Tech Common Name (eg, your name or your server's hostname) []:mysql_slave Email Address []: Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []:
4.4爲slave服務器簽署證書
[root@mysql_slave ssl]# scp slave.csr mysql_master:/tmp/ [root@mysql_master ssl]# openssl ca -in /tmp/slave.csr -out /tmp/slave.crt -days 365 Using configuration from /etc/pki/tls/openssl.cnf Check that the request matches the signature Signature ok Certificate Details: Serial Number: 2 (0x2) Validity Not Before: Apr 22 15:57:52 2014 GMT Not After : Apr 22 15:57:52 2015 GMT Subject: countryName = CN stateOrProvinceName = BeiJing organizationName = eivll0m organizationalUnitName = Tech commonName = mysql_slave emailAddress = slave@eivll0m.com X509v3 extensions: X509v3 Basic Constraints: CA:FALSE Netscape Comment: OpenSSL Generated Certificate X509v3 Subject Key Identifier: B9:4B:EA:28:0E:9E:4B:84:A6:9A:4E:45:3B:DF:B3:B9:E3:E9:ED:55 X509v3 Authority Key Identifier: keyid:0F:79:D1:B8:1C:63:4B:91:A6:17:9F:B4:6D:A3:C7:96:AA:29:5E:48 Certificate is to be certified until Apr 22 15:57:52 2015 GMT (365 days) Sign the certificate? [y/n]:y 1 out of 1 certificate requests certified, commit? [y/n]y Write out database with 1 new entries Data Base Updated
在mastet服務器上將簽署好證書申請拷貝到Slave服務器
[root@mysql_master ~]# scp /tmp/slave.crt mysql_slave:/usr/local/mysql/ssl/
4.5將CA證書拷貝到slave服務器與saster相應目錄
[root@mysql_master ~]# scp /etc/pki/CA/cacert.pem mysql_slave:/usr/local/mysql/ssl/ [root@mysql_master ~]# cp /etc/pki/CA/cacert.pem /usr/local/mysql/ssl/
4.6修改master與slave服務器證書屬主、屬組爲"mysql"用戶
# chown -R mysql.mysql /usr/local/mysql/ssl # ll /usr/local/mysql/ssl/ -rw-r--r-- 1 mysql mysql 1415 Sep 20 20:57 cacert.pem -rw-r--r-- 1 mysql mysql 4600 Sep 20 20:22 master.crt -rw-r--r-- 1 mysql mysql 1054 Sep 20 20:20 master.csr -rw------- 1 mysql mysql 1675 Sep 20 20:17 master.key
4.7在master與slave服務器編輯my.cnf開啓SSL加密功能
在master服務器的my.cnf文件中[mysqld]下添加以下參數
ssl #開啓SSL功能 ssl_ca = /usr/local/mysql/ssl/cacert.pem #指定CA文件位置 ssl_cert = /usr/local/mysql/ssl/master.crt #指定證書文件位置 ssl_key = /usr/local/mysql/ssl/master.key #指定密鑰所在位置
在slave服務器的my.cnf文件中[mysqld]下添加以下參數
ssl ssl_ca = /usr/local/mysql/ssl/cacert.pem ssl_cert = /usr/local/mysql/ssl/slave.crt ssl_key = /usr/local/mysql/ssl/slave.key
4.8在master服務器查看SSL加密是否開啓並建立受權一個基於密鑰認證的用戶
mysql> SHOW VARIABLES LIKE '%ssl%'; +---------------+---------------------------------+ | Variable_name | Value | +---------------+---------------------------------+ | have_openssl | YES | | have_ssl | YES | | ssl_ca | /usr/local/mysql/ssl/cacert.pem | | ssl_capath | | | ssl_cert | /usr/local/mysql/ssl/master.crt | | ssl_cipher | | | ssl_crl | | | ssl_crlpath | | | ssl_key | /usr/local/mysql/ssl/master.key | +---------------+---------------------------------+ 9 rows in set (0.12 sec)
mysql> GRANT REPLICATION CLIENT,REPLICATION SLAVE ON *.* to 'slave'@'172.16.%.%' IDENTIFIED BY 'passwd' REQUIRE SSL; Query OK, 0 rows affected (0.00 sec) mysql> FLUSH PRIVILEGES; Query OK, 0 rows affected (0.02 sec)
4.9查看master服務器二進制日誌文件和事件位置
mysql> SHOW MASTER STATUS; +------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------+ | mysql-bin.000007 | 919 | | | | +------------------+----------+--------------+------------------+-------------------+ 1 row in set (0.09 sec)
4.10在slave上測試使用加密用戶指定密鑰鏈接master服務器（以下測試成功）
root@mysql_slave ssl]# mysql -uslave -ppasswd -h 172.16.10.72 --ssl-ca=/usr/local/mysql/ssl/cacert.pem --ssl-cert=/usr/local/mysql/ssl/slave.crt --ssl-key=/usr/local/mysql/ssl/slave.key Warning: Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.6.17-log Source distribution Copyright (c) 2000, 2014, 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. mysql>
4.11查看slave服務器SSL是否開啓並鏈接master服務器
mysql> SHOW VARIABLES LIKE '%ssl%'; +---------------+---------------------------------+ | Variable_name | Value | +---------------+---------------------------------+ | have_openssl | YES | | have_ssl | YES | | ssl_ca | /usr/local/mysql/ssl/cacert.pem | | ssl_capath | | | ssl_cert | /usr/local/mysql/ssl/master.crt | | ssl_cipher | | | ssl_crl | | | ssl_crlpath | | | ssl_key | /usr/local/mysql/ssl/master.key | +---------------+---------------------------------+
mysql> change master to master_host='172.16.10.72',master_user='slave',master_password='passwd',master_log_file='mysql-bin.000007',master_log_pos=919,master_ssl=1,master_ssl_ca='/usr/local/mysql/ssl/cacert.pem',master_ssl_cert='/usr/local/mysql/ssl/slave.crt',master_ssl_key='/usr/local/mysql/ssl/slave.key'; mysql> start slave; #啓動IO線程 mysql> show slave status\G; ##查看slave狀態
4.12查看slave服務器狀態
[root@mysql_slave ~]# cd /usr/local/mysql/ssl/ [root@mysql_slave ssl]# mysql -e 'show slave status\G;' *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 172.16.10.72 Master_User: slave Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000007 Read_Master_Log_Pos: 919 Relay_Log_File: relay_log.000002 Relay_Log_Pos: 572 Relay_Master_Log_File: mysql-bin.000007 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: 919 Relay_Log_Space: 739 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: Yes Master_SSL_CA_File: /usr/local/mysql/ssl/cacert.pem Master_SSL_CA_Path: Master_SSL_Cert: /usr/local/mysql/ssl/slave.crt Master_SSL_Cipher: Master_SSL_Key: /usr/local/mysql/ssl/slave.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: 1 Master_UUID: 988cd54d-c1a7-11e3-b1a5-000c29c976ef Master_Info_File: /usr/local/mysql/data/master.info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it 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: Auto_Position: 0
4.13建立數據庫進行驗證
[root@mysql_master ssl]# mysql -e 'create database mydata' [root@mysql_master ssl]# mysql -e 'show databases' +--------------------+ | Database | +--------------------+ | information_schema | | eivll0m | | mydata | | mysql | | performance_schema | | test | +--------------------+
[root@mysql_slave data]# mysql -e 'show databases;' +--------------------+ | Database | +--------------------+ | information_schema | | eivll0m | | mydata | | mysql | | performance_schema | | test | +--------------------+
複製成功！
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