diff --git a/README.md b/README.md new file mode 100644 index 0000000..86ff55c --- /dev/null +++ b/README.md @@ -0,0 +1,343 @@ +# Домашнее задание 44 + +## Репликация mysql + +Для выполнение задания используется vagrant box Ubuntu 22.04 + +### Создание Vagrantfile + +Создадим 2 VM c характеристиками + +- CPU 1 +- RAM 1024Mb + +Готовый [Vagrantfile](Vagrantfile) + +### ansible.yml + + +В сценарий для Ansible добавлены следующие действия: + + +1. На всех VM устанавливается mysql сервер +2. На все VM копируется дамп bet.dmp +3. На VM **mysql-master** + 1. Создается база bet + 2. В базу bet заливается дамп bet.dmp + 3. Настраивается прослушивание сервером mysql для всех интерфейсов в mysqld.cnf + 4. Настравается репликация в mysqld.cnf + 5. Создается пользорватель для репликации +4. На VM **mysql-slave** + 1. Создается база bet и temp_bet (temp_bet нужна для экспорта только нужных таблиц) + 2. В базу temp_bet заливается дамп bet.dmp + 3. Из базы temp_bet, делается дамп только таблиц bookmaker, competition, market, odds и outcome + 4. Дамп с нужными таблицами заливается в базу bet + 5. База temp_bet удаляется + 6. Настравается репликация в mysqld.cnf, с учетом нужных таблиц + 7. Запускается репликация + + + + +Готовый [ansible.yml](ansible.yml) + + +### Проверка + +Запускаем vagrant + +```bash +alex@ubuntu-pc:~/Документы/44$ vagrant up +Bringing machine 'mysql-master' up with 'virtualbox' provider... +Bringing machine 'mysql-slave' up with 'virtualbox' provider... +==> mysql-master: Importing base box 'ubuntu/jammy64'... +==> mysql-master: Matching MAC address for NAT networking... +==> mysql-master: Checking if box 'ubuntu/jammy64' version '20241002.0.0' is up to date... +==> mysql-master: Setting the name of the VM: 44_mysql-master_1777148561622_1863 +==> mysql-master: Clearing any previously set network interfaces... +==> mysql-master: Preparing network interfaces based on configuration... + mysql-master: Adapter 1: nat + mysql-master: Adapter 2: intnet +==> mysql-master: Forwarding ports... + mysql-master: 22 (guest) => 2222 (host) (adapter 1) +==> mysql-master: Running 'pre-boot' VM customizations... +==> mysql-master: Booting VM... +==> mysql-master: Waiting for machine to boot. This may take a few minutes... +... + +... + + +alex@ubuntu-pc:~/Документы/44$ vagrant up +Bringing machine 'mysql-master' up with 'virtualbox' provider... +Bringing machine 'mysql-slave' up with 'virtualbox' provider... +==> mysql-master: Importing base box 'ubuntu/jammy64'... +==> mysql-master: Matching MAC address for NAT networking... +==> mysql-master: Checking if box 'ubuntu/jammy64' version '20241002.0.0' is up to date... +==> mysql-master: Setting the name of the VM: 44_mysql-master_1777148561622_1863 +==> mysql-master: Clearing any previously set network interfaces... +==> mysql-master: Preparing network interfaces based on configuration... + mysql-master: Adapter 1: nat + mysql-master: Adapter 2: intnet +==> mysql-master: Forwarding ports... + mysql-master: 22 (guest) => 2222 (host) (adapter 1) +==> mysql-master: Running 'pre-boot' VM customizations... +==> mysql-master: Booting VM... +==> mysql-master: Waiting for machine to boot. This may take a few minutes... +``` + + +В начале подключимся к **mysql-slave**, и посмотрим какие таблицы имеет база bet +```bash +root@mysql-slave:~# mysql +Welcome to the MySQL monitor. Commands end with ; or \g. +Your MySQL connection id is 15 +Server version: 8.0.45-0ubuntu0.22.04.1 (Ubuntu) + +Copyright (c) 2000, 2026, Oracle and/or its affiliates. + +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> use bet; +Reading table information for completion of table and column names +You can turn off this feature to get a quicker startup with -A + +Database changed +mysql> show tables; ++---------------+ +| Tables_in_bet | ++---------------+ +| bookmaker | +| competition | +| market | +| odds | +| outcome | ++---------------+ +5 rows in set (0.01 sec) + +``` + +Видим, что база имеет только те таблицы, которые нужно реплицировать по заданию. + +Посмотрим текущие состояние репликации. + +```bash +mysql> show slave status\G +*************************** 1. row *************************** + Slave_IO_State: Waiting for source to send event + Master_Host: 192.168.50.10 + Master_User: replication + Master_Port: 3306 + Connect_Retry: 60 + Master_Log_File: binlog.000004 + Read_Master_Log_Pos: 157 + Relay_Log_File: mysql-slave-relay-bin.000002 + Relay_Log_Pos: 367 + Relay_Master_Log_File: binlog.000004 + Slave_IO_Running: Yes + Slave_SQL_Running: Yes + Replicate_Do_DB: + Replicate_Ignore_DB: + Replicate_Do_Table: bet.bookmaker,bet.competition,bet.market,bet.odds,bet.outcome + Replicate_Ignore_Table: + Replicate_Wild_Do_Table: + Replicate_Wild_Ignore_Table: + Last_Errno: 0 + Last_Error: + Skip_Counter: 0 + Exec_Master_Log_Pos: 157 + Relay_Log_Space: 583 + 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: 3d1b6963-40ea-11f1-bd8d-02a0d264f128 + Master_Info_File: mysql.slave_master_info + SQL_Delay: 0 + SQL_Remaining_Delay: NULL + Slave_SQL_Running_State: Replica 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: + Executed_Gtid_Set: + Auto_Position: 1 + Replicate_Rewrite_DB: + Channel_Name: + Master_TLS_Version: + Master_public_key_path: + Get_master_public_key: 1 + Network_Namespace: +1 row in set, 1 warning (0.00 sec) + +``` + +В **Replicate_Do_Table** видим какие именно таблицы и из какой базы будут реплицироваться. + + +Подключимся к **mysql-master**, и добавим новую запись в таблицу **bookmaker**. + +Посмотрим, что на текущий момент содержиться в таблице + +```bash +root@mysql-master:~# mysql +Welcome to the MySQL monitor. Commands end with ; or \g. +Your MySQL connection id is 8 +Server version: 8.0.45-0ubuntu0.22.04.1 (Ubuntu) + +Copyright (c) 2000, 2026, Oracle and/or its affiliates. + +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> select * from bet.bookmaker; ++----+----------------+ +| id | bookmaker_name | ++----+----------------+ +| 4 | betway | +| 5 | bwin | +| 6 | ladbrokes | +| 3 | unibet | ++----+----------------+ +4 rows in set (0.00 sec) + +``` + +Добавим новую запись + +```bash +mysql> insert into bet.bookmaker (bookmaker_name) values ('my_new_bookmaker_name'); +Query OK, 1 row affected (0.01 sec) + +``` + + +Проверим Executed_Gtid_Set + +```bash +mysql> show master status; ++---------------+----------+--------------+------------------+----------------------------------------+ +| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | ++---------------+----------+--------------+------------------+----------------------------------------+ +| binlog.000004 | 463 | | | 3d1b6963-40ea-11f1-bd8d-02a0d264f128:1 | ++---------------+----------+--------------+------------------+----------------------------------------+ +1 row in set (0.00 sec) + +``` + +Опять переключимся на **mysql-slave**, и проверим, как прошла репликация. + + +```bash +mysql> select * from bet.bookmaker; ++----+-----------------------+ +| id | bookmaker_name | ++----+-----------------------+ +| 4 | betway | +| 5 | bwin | +| 6 | ladbrokes | +| 7 | my_new_bookmaker_name | +| 3 | unibet | ++----+-----------------------+ +5 rows in set (0.00 sec) + + +``` + +Видим, что в таблице bookmaker на **mysql-slave** появилась запись, которцю мы создали на **mysql-master** + + +Еще проверим статус, на наличе ошибок +```bash +mysql> show slave status\G +*************************** 1. row *************************** + Slave_IO_State: Waiting for source to send event + Master_Host: 192.168.50.10 + Master_User: replication + Master_Port: 3306 + Connect_Retry: 60 + Master_Log_File: binlog.000004 + Read_Master_Log_Pos: 463 + Relay_Log_File: mysql-slave-relay-bin.000002 + Relay_Log_Pos: 673 + Relay_Master_Log_File: binlog.000004 + Slave_IO_Running: Yes + Slave_SQL_Running: Yes + Replicate_Do_DB: + Replicate_Ignore_DB: + Replicate_Do_Table: bet.bookmaker,bet.competition,bet.market,bet.odds,bet.outcome + Replicate_Ignore_Table: + Replicate_Wild_Do_Table: + Replicate_Wild_Ignore_Table: + Last_Errno: 0 + Last_Error: + Skip_Counter: 0 + Exec_Master_Log_Pos: 463 + Relay_Log_Space: 889 + 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: 3d1b6963-40ea-11f1-bd8d-02a0d264f128 + Master_Info_File: mysql.slave_master_info + SQL_Delay: 0 + SQL_Remaining_Delay: NULL + Slave_SQL_Running_State: Replica 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: 3d1b6963-40ea-11f1-bd8d-02a0d264f128:1 + Executed_Gtid_Set: 3d1b6963-40ea-11f1-bd8d-02a0d264f128:1 + Auto_Position: 1 + Replicate_Rewrite_DB: + Channel_Name: + Master_TLS_Version: + Master_public_key_path: + Get_master_public_key: 1 + Network_Namespace: +1 row in set, 1 warning (0.00 sec) + +``` + +Ошибок нет! Репликация настроена. + +Задание выполнено! \ No newline at end of file