Добавить README.md
This commit is contained in:
343
README.md
Normal file
343
README.md
Normal file
@@ -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!
|
||||||
Reference in New Issue
Block a user