{"id":386,"date":"2020-06-04T12:41:42","date_gmt":"2020-06-04T04:41:42","guid":{"rendered":"http:\/\/www.leohe.net.cn\/?p=386"},"modified":"2020-06-04T12:42:07","modified_gmt":"2020-06-04T04:42:07","slug":"mysql-%e4%b8%bb%e4%bb%8e","status":"publish","type":"post","link":"https:\/\/china-abc.leohe.net.cn\/?p=386","title":{"rendered":"mysql \u4e3b\u4ece"},"content":{"rendered":"

\u5b89\u88c5mysql\u5ffd\u7565<\/p>\n

\/\/\u9501\u6570\u636e(\u4e3b\u5e93\u64cd\u4f5c)<\/strong>
\nMySQL> flush tables with read lock;
\n\u5907\u4efd\u4e3b\u6570\u636e\u5e93<\/strong>\uff1a(\u5907\u4efd\u65f6\u6700\u597d\u52a0\u4e0a\u53ea\u8bfb\u9650\u5236\uff0c\u4e0d\u5141\u8bb8\u65b0\u6570\u636e\u5199\u5165)(\u4e3b\u5e93\u64cd\u4f5c)<\/strong>
\nmysqldump -uroot -p --all-databases > \/opt\/all-2020-06-04.sql
\n\/\/\u9000\u51fa\u5e76\u91ca\u653e\u6570\u636e\u9501(\u4e3b\u5e93\u64cd\u4f5c)<\/strong>
\nMySQL> quit;
\n\u4f20\u8f93\u5230\u4ece\uff1a(\u4e3b\u5e93\u64cd\u4f5c)<\/strong>
\nscp \/opt\/all-2020-06-04.sql root@192.168.0.41:\/opt\/<\/p>\n

\u4ece\u5bfc\u5165\u6240\u6709\u6570\u636e\uff1a(\u4ece\u5e93\u64cd\u4f5c)<\/strong>
\nmysql -uroot -p < \/opt\/all-2020-06-04.sql
\n\/\/\u521b\u5efarepl\u7528\u6237\uff0c\u4e13\u95e8\u7528\u4e8e\u590d\u5236\u6570\u636e\u4f7f\u7528(\u4e3b\u5e93\u64cd\u4f5c)\uff0c\u5e76\u5141\u8bb8\u4ece\u5c40\u57df\u7f51\u8bbf\u95ee<\/strong>
\nMySQL> grant replication slave on *.* to 'repl'@'192.168.0.%' identified by '123456';
\nMySQL> flush privileges;<\/p>\n

\u914d\u7f6e\u4e3b\u6570\u636e\u5e93\u7f16\u8f91\u914d\u7f6e\u6587\u4ef6<\/strong>
\nvim \/etc\/my.cnf
\n\/\u6dfb\u52a0\u6216\u4fee\u6539\u4ee5\u4e0b\u4fe1\u606f\uff1a
\nlog-bin=mysql-bin \/\/\u542f\u7528binlog\u65e5\u5fd7
\nserver-id=1 \/\/\u4e3b\u6570\u636e\u5e93\u670d\u52a1\u5668\u552f\u4e00\u6807\u8bc6\u7b26 \u4e3b\u7684\u5fc5\u987b\u5fc5\u4ece\u5927
\n\u4fdd\u5b58\u9000\u51fa<\/p>\n

\u91cd\u542fmysql\u670d\u52a1<\/strong>
\nservice mysql restart<\/p>\n

\u914d\u7f6e\u4ece\u6570\u636e\u5e93<\/strong>
\nvim \/etc\/my.cnf
\n\/\/\u6dfb\u52a0\u6216\u4fee\u6539\u4ee5\u4e0b\u4fe1\u606f\uff1a
\nserver-id=2 \/\/\u8bbe\u7f6e\u4ece\u5e93\u7684\u552f\u4e00\u6807\u8bc6\u7b26 \u4ece\u7684\u5fc5\u987b\u6bd4\u4e3b\u5c0f
\n\u4fdd\u5b58\u9000\u51fa<\/p>\n

\u91cd\u542fmysql\u670d\u52a1<\/strong>
\nservice mysql restart<\/p>\n

\u67e5\u770b\u4e3b\u72b6\u6001\u4fe1\u606f\uff1a(\u4e3b\u5e93\u64cd\u4f5c)<\/strong>
\nMySQL> show master status;
\n\u4f1a\u51fa\u73b0\u4ee5\u4e0b\u4fe1\u606f
\nmysql-bin.000039 | 1300
\n\u914d\u7f6e\u5e76\u542f\u52a8\u4e3b\u4ece\u590d\u5236<\/strong>
\nMySQL> change master to
\nmaster_host='192.168.0.40',\/\/\u8fd9\u91cc\u5c31\u662f\u4e3b\u7684ip
\nmaster_user='repl',\/\/\u8fd9\u91cc\u65b0\u5efa\u7684\u590d\u5236\u7528\u6237\u540d
\nmaster_password='123456',\/\/\u8fd9\u91cc\u65b0\u5efa\u7684\u590d\u5236\u7528\u6237\u5bc6\u7801
\nmaster_log_file='mysql-bin.000039',\/\/\u8fd9\u91ccshow master status \u51fa\u73b0\u7684\u6587\u4ef6\u540d
\nmaster_log_pos=1300;\/\/\u8fd9\u91ccshow master status \u51fa\u73b0\u7684position<\/p>\n

\u67e5\u770b\u4ece\u72b6\u6001\uff1a(\u4ece\u5e93\u64cd\u4f5c)<\/strong>
\nMySQL> show slave status\\G;
\n\u5982\u679c
\nSlave_IO_Running: Yes<\/strong>
\nSlave_SQL_Running: Yes<\/strong>
\n\u4e24\u4e2ayes\u8868\u793a\u8bbe\u7f6e\u6210\u529f<\/p>\n

\u4e3b\u4ece\u8bbe\u7f6e\u5b8c\u6210\u3002\u4e3a\u4e86\u4ece\u5e93\u505a\u4e3b\u8bfb\u5904\u7406\uff0c\u4ece\u914d\u7f6e\u6587\u4ef6\u4e0a\u8bbe\u7f6e\u4ece\u5e93\u53ea\u8bfb\u5c5e\u6027<\/strong>
\n\u4ece\u5e93\u8bbe\u7f6e\u53ea\u8bfb\uff1a<\/strong>
\nvim \/etc\/my.cnf
\n\/\/\u7684log_bin\u540e\u6dfb\u52a0\u4ee5\u4e0b\u4fe1\u606f
\nread_only=1
\n\u4fdd\u5b58\u9000\u51fa<\/p>\n

\u91cd\u542fmysql\u670d\u52a1<\/strong>
\nservice mysql restart
\n\/\/\u67e5\u770b\u53ea\u8bfb\u72b6\u6001\uff1a(\u4ece\u5e93\u64cd\u4f5c)<\/strong>
\nMySQL> show global variables like \"%read_only%\";
\n\u663e\u793aread_only \u4e3a on\u5219\u8868\u793a\u8bbe\u7f6e\u6210\u529f<\/p>\n

\/\/\u4ece\u5e93\u5206\u914d\u4f7f\u7528\u7528\u6237,\u4f7f\u7528\u4ece\u5e93\u7684\u5e94\u7528\u8981\u4f7f\u7528dbuser\u6765\u8bbf\u95ee\uff0c\u907f\u514d\u9020\u6210\u5199\u6570\u636e\uff0c\u5982\u679c\u4f7f\u7528dbuser\u6765\u5199\u4ece\u5e93\u5219\u4f1a\u63d0\u793a\u5f53\u524d\u5904\u4e8eread_only\u6a21\u5f0f\uff0c\u7981\u6b62\u5199\u5165(\u4e3b\u5e93\u64cd\u4f5c)<\/strong>
\nMySQL> grant all privileges on *.* to 'dbuser'@'192.168.0.%' identified by '123456';
\nMySQL> revoke super on *.* from 'dbuser'@'192.168.0.%';\/\/\u79fb\u9664\u7528\u6237\u7684super\u6743\u9650\uff0cread_only\u53ea\u7528\u666e\u901a\u7528\u6237\u8d77\u4f5c\u7528\uff0csuper\u7528\u6237\u4f9d\u636e\u53ef\u4ee5\u5199\u64cd\u4f5c\uff0c\u6240\u4ee5\u8981\u53bb\u9664\u6389super\u6743\u9650<\/strong>
\nMySQL> show grants for 'dbuser'@'192.168.0.%';
\nMySQL> flush privileges;<\/p>\n

\/\/\u5220\u9664\u6307\u5b9a\u7528\u6237
\nMySQL> drop user zhangsan@'%';<\/p>\n

\u95ee\u9898\uff1a<\/strong>
\nSlave_IO_Running: NO
\n\u67e5\u770b\u9519\u8bef\u65e5\u5fd7\u63d0\u793a\uff1a<\/strong>
\nthese UUIDs must
\nbe different for replication to work
\nuuid\u91cd\u590d\u4e86<\/strong>\uff0c
\n\u627e\u5230auto.cnf\u4fee\u6539uuid\u5373\u53ef\uff0c\u4e00\u822c\u662f\u5728\u6570\u636e\u5e93\u7684\u6570\u636e\u5b58\u50a8\u76ee\u5f55\u4e0b\uff0c\u5982\uff1a\/data\/mysql
\nvim auto.cnf
\n\u4fee\u6539uuid\u5e76\u4fdd\u5b58
\n\u91cd\u542fmysql
\nservice mysql restart<\/p>\n

 <\/p>\n

laravel\u4e3b\u4ece\u4f7f\u7528\uff1a<\/p>\n

\u4fee\u6539config\/database.php\u6587\u4ef6\uff1a<\/p>\n

\u5728connection\u8fde\u63a5\u7684mysql\u65b9\u5f0f\u4e0b\u65b0\u5efa\u8bfb\u5199\u4fe1\u606f\u5e76\u5173\u95edhost\u548cpassword\u9879\uff1a<\/p>\n

\n
\n
'mysql'\u00a0=>\u00a0[<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u8bfb\u5199\u914d\u7f6e<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0'read'=>[<\/strong><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0['host'=>'192.168.0.41',\u00a0'password'=>'123456'],<\/strong><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0],<\/strong><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0'write'=>[<\/strong><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0['host'=>'192.168.0.40',\u00a0'password'=>'123456'],<\/strong><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0],<\/strong><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0'driver'\u00a0=>\u00a0'mysql',<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0'url'\u00a0=>\u00a0env('DATABASE_URL'),<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0'host'\u00a0=>\u00a0env('DB_HOST',\u00a0'127.0.0.1'),<\/strong><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0'port'\u00a0=>\u00a0env('DB_PORT',\u00a0'3306'),<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0'database'\u00a0=>\u00a0env('DB_DATABASE',\u00a0'forge'),<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0'username'\u00a0=>\u00a0env('DB_USERNAME',\u00a0'forge'),<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0'password'\u00a0=>\u00a0env('DB_PASSWORD',\u00a0''),<\/strong><\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u540e\u8fb9\u9879\u5ffd\u7565\u3002\u3002<\/div>\n
]<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

\u5b89\u88c5mysql\u5ffd\u7565 \/\/\u9501\u6570\u636e(\u4e3b\u5e93\u64cd\u4f5c) MySQL> flush tables with read […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,9],"tags":[],"_links":{"self":[{"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/posts\/386"}],"collection":[{"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=386"}],"version-history":[{"count":2,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/posts\/386\/revisions"}],"predecessor-version":[{"id":388,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/posts\/386\/revisions\/388"}],"wp:attachment":[{"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=386"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=386"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}