原文鏈接：?http://blog.csdn.net/songxixi/article/details/8737555 現在公司向在一臺服務器上做主從復制，現在了解到的是需要安裝多個mysql不同的服務，才可以，我現在 在現有單實例數據庫下，分了不同的端口以下所示紅色部分；[root@mysql ~]# netstat -t
原文鏈接：?http://blog.csdn.net/songxixi/article/details/8737555
現在公司向在一臺服務器上做主從復制，現在了解到的是需要安裝多個mysql不同的服務，才可以，我現在 在現有單實例數據庫下，分了不同的端口以下所示紅色部分； [root@mysql ~]# netstat -tunlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:1001 0.0.0.0:* LISTEN 2515/rpc.statd tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 2483/portmap tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 2750/cupsd tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 3056/sendmail: acce tcp 0 0 :::3306 :::* LISTEN 4025/mysqld tcp 0 0 :::3307 :::* LISTEN 17423/mysqld tcp 0 0 :::3308 :::* LISTEN 17388/mysqld tcp 0 0 :::3309 :::* LISTEN 20371/mysqld tcp 0 0 :::22 :::* LISTEN 2741/sshd udp 0 0 0.0.0.0:995 0.0.0.0:* 2515/rpc.statd udp 0 0 0.0.0.0:998 0.0.0.0:* 2515/rpc.statd udp 0 0 0.0.0.0:42601 0.0.0.0:* 3204/avahi-daemon: udp 0 0 0.0.0.0:5353 0.0.0.0:* 3204/avahi-daemon: udp 0 0 0.0.0.0:111 0.0.0.0:* 2483/portmap udp 0 0 0.0.0.0:631 0.0.0.0:* 2750/cupsd udp 0 0 :::5353 :::* 3204/avahi-daemon: udp 0 0 :::59254 :::* 3204/avahi-daemon: [root@mysql mysql]# mysqld_multi --defaults-extra-file=/etc/mysqld_multi.cnf report Reporting MySQL servers MySQL server from group: mysqld2 is running MySQL server from group: mysqld3 is running MySQL server from group: mysqld4 is running [root@mysql mysql]# lsof -i:3308 COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME mysqld 17388 mysql 11u IPv6 45429 TCP *:tns-server (LISTEN) [root@mysql mysql]# lsof -i:3307 COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME mysqld 17423 mysql 11u IPv6 45479 TCP *psession-prxy (LISTEN) [root@mysql mysql]# lsof -i:3309 COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME mysqld 20371 mysql 11u IPv6 47851 TCP *:tns-adv (LISTEN) [root@mysql mysql]# lsof -i:3306 COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME mysqld 4025 mysql 11u IPv6 16575 TCP *:mysql (LISTEN) [root@mysql mysql]# [root@mysql ~]# 在以上服務都啟動正常的情況下，配置主從，我沒有調整IO的線程，不知道在不同端口見做主從復制關系，以下是我配置最后遇到的錯誤，請綠林好漢幫忙看看啊，拍磚。。 mysql> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Master_Host: 192.168.1.10 Master_User: slave001 Master_Port: 3308 Connect_Retry: 60 Master_Log_File: mysql-bin.000003 Read_Master_Log_Pos: 1027 Relay_Log_File: localhost3308-relay-bin.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: mysql-bin.000003 Slave_IO_Running: No 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: 1027 Relay_Log_Space: 107 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: 1593 Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids; these ids must be different for replication to work (or the --replicate-same-server-id option must be used on slave but this does not always make sense; please check the manual before using it). Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 1 1 row in set (0.00 sec) ERROR: No query specified mysql> 我在mysqld_multi.cnf里面添加了以下紅色的，復制內容啟動還是報錯，請指點哇 [mysqld_multi] mysqld = /usr/local/mysql/bin/mysqld_safe mysqladmin = /usr/local/mysql/bin/mysqladmin user = multi_admin password = my_password [mysqld2] socket = /tmp/mysql3307.sock port = 3307 pid-file = /usr/local/mysql/data3307/localhost3307.pid datadir = /usr/local/mysql/data3307 #language = /usr/local/mysql/share/mysql/english user = mysql [mysqld3] #mysqld = /path/to/mysqld_safe #ledir = /path/to/mysqld-binary/ #mysqladmin = /path/to/mysqladmin socket = /tmp/mysql3308.sock port = 3308 pid-file = /usr/local/mysql/data3308/localhost3308.pid datadir = /usr/local/mysql/data3308 #language = /usr/local/mysql/share/mysql/swedish user = mysql master-host = 192.168.1.10 master-user = slave001 master-password = slave001 master-port = 3306 replicate-do-db=test 錯誤： mysql> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Master_Host: 192.168.1.10 Master_User: slave001 Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000018 Read_Master_Log_Pos: 107 Relay_Log_File: localhost3308-relay-bin.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: mysql-bin.000018 Slave_IO_Running: No 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: 107 Relay_Log_Space: 107 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: 1593 Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids; these ids must be different for replication to work (or the --replicate-same-server-id option must be used on slave but this does not always make sense; please check the manual before using it). Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 1 1 row in set (0.00 sec)
哎，經過幾個小時的琢磨，終于看到廬山真面目了！以下是成功啟動的效果； [root@mysql ~]# mysqld_multi --defaults-extra-file=/etc/my.cnf report Reporting MySQL servers MySQL server from group: mysqld1 is running MySQL server from group: mysqld2 is running MySQL server from group: mysqld3 is running MySQL server from group: mysqld4 is running [root@mysql ~]# mysqld_multi --defaults-extra-file=/etc/my.cnf report Reporting MySQL servers MySQL server from group: mysqld1 is running MySQL server from group: mysqld2 is running MySQL server from group: mysqld3 is running MySQL server from group: mysqld4 is running [root@mysql ~]# mysqld_multi --defaults-extra-file=/etc/my.cnf report Reporting MySQL servers MySQL server from group: mysqld1 is running MySQL server from group: mysqld2 is running MySQL server from group: mysqld3 is running MySQL server from group: mysqld4 is running [root@mysql ~]# mysqld_multi --defaults-extra-file=/etc/my.cnf report Reporting MySQL servers MySQL server from group: mysqld1 is running MySQL server from group: mysqld2 is running MySQL server from group: mysqld3 is running MySQL server from group: mysqld4 is running [root@mysql ~]# 其實，在我配置muti的時候有些參數沒有做好設置，到時server-id服務啟動不起來，我把所有的muti的mysqld【1-4】全部放到我們的配置文件內/etc/my.cnf，包括我們的3306端口的實例庫，在啟動的時候一起跑即可！以下是我my.cnf的配置文件信心，請查閱； # The following options will be passed to all MySQL clients [mysqld_multi] mysqld = /usr/local/mysql/bin/mysqld_safe mysqladmin = /usr/local/mysql/bin/mysqladmin user = root # Here follows entries for some specific programs # The MySQL server [mysqld1] datadir=/usr/local/mysql/data socket=/tmp/mysql.sock user=mysql old_passwords=1 port=3306 skip-name-resolve server_id=1 log-bin=mysql-bin max_connections=1000 key_buffer_size=218348 query_cache_size=10 read_rnd_buffer_size=134228 table_cache=10000 tmp_table_size=5362 log-slow-queries=slow.log long_query_time=1 concurrent_insert=2 thread_cache_size=300 #log=/usr/local/mysql/data/mysql1.log pid-file=/usr/local/mysql/data/mysql1.pid log-error=/usr/local/mysql/data/log.1 log-slave-updates slave-skip-errors=ALL [mysqld2] datadir=/usr/local/mysql/data3307 socket=/tmp/mysql3307.sock user=mysql old_passwords=1 skip-name-resolve server_id=222 log-bin=mysql-bin max_connections=1000 key_buffer_size=218348 query_cache_type=0 read_rnd_buffer_size=1342128 table_cache=10000 tmp_table_size=5368912 log-slow-queries=slow.log long_query_time=1 concurrent_insert=2 thread_cache_size=300 port=3307 pid-file=/usr/local/mysql/data3307/localhost3307.pid log-error=/usr/local/mysql/data3307/log.2 [mysqld3] datadir=/usr/local/mysql/data3308 socket=/tmp/mysql3308.sock user=mysql old_passwords=1 skip-name-resolve server_id=223 log-bin=mysql-bin max_connections=1000 key_buffer_size=218348 query_cache_type=0 read_rnd_buffer_size=1342128 table_cache=10000 tmp_table_size=5368912 log-slow-queries=slow.log long_query_time=1 concurrent_insert=2 thread_cache_size=300 port=3308 pid-file=/usr/local/mysql/data3308/localhost3308.pid log-error=/usr/local/mysql/data3308/log.3 [mysqld4] datadir=/usr/local/mysql/data3309 socket=/tmp/mysql3309.sock user=mysql old_passwords=1 skip-name-resolve server_id=224 log-bin=mysql-bin max_connections=1000 key_buffer_size=218348 query_cache_type=0 read_rnd_buffer_size=1342128 table_cache=10000 tmp_table_size=5368912 log-slow-queries=slow.log long_query_time=1 concurrent_insert=2 thread_cache_size=300 port=3309 pid-file=/usr/local/mysql/data3309/localhost3309.pid log-error=/usr/local/mysql/data3309/log.4聲明：本網頁內容旨在傳播知識，若有侵權等問題請及時與本網聯系，我們將在第一時間刪除處理。TEL:177 7030 7066 E-MAIL:11247931@qq.com
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