https://github.com/oleksiikraievyi/highload-sw-arch-hw-19

HW 19 for highload software architecture courses. https://prjctr.com/course/highload-software-architecture?gclid=EAIaIQobChMI7OOMjvf78wIVRjcYCh1axwtgEAAYASAAEgKm2_D_BwE
https://github.com/oleksiikraievyi/highload-sw-arch-hw-19

Last synced: 11 days ago
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HW 19 for highload software architecture courses. https://prjctr.com/course/highload-software-architecture?gclid=EAIaIQobChMI7OOMjvf78wIVRjcYCh1axwtgEAAYASAAEgKm2_D_BwE

• Host: GitHub
• URL: https://github.com/oleksiikraievyi/highload-sw-arch-hw-19
• Owner: oleksiikraievyi
• Created: 2022-01-19T16:38:27.000Z (about 3 years ago)
• Default Branch: master
• Last Pushed: 2022-01-19T17:08:49.000Z (about 3 years ago)
• Last Synced: 2024-06-20T05:13:27.205Z (7 months ago)
• Language: Shell
• Homepage:
• Size: 3.91 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# highload-sw-arch-hw-19

# Prerequisites

* docker

* linux + bash

# 1. Run MySQL master and 2 slaves, table users will be created and inserted in infinite loop on master server

```

./run.sh

```

# 2. Check tables on slave1 and slave2, everything should be replicated

```

docker exec mysql_slave1 sh -c "export MYSQL_PWD=111; mysql -u root -e 'USE mydb; SELECT * FROM users;'"

docker exec mysql_slave2 sh -c "export MYSQL_PWD=111; mysql -u root -e 'USE mydb; SELECT * FROM users;'"

```

# 3. Stop slave1, check that data on slave2 is replicated

```

docker-compose stop mysql_slave1

```

# 4. Drop column on slave1, check that replication is broken

```

Error 'Unknown column 'name' in 'field list'' on query. Default database: ''. Query: 'INSERT INTO mydb.users (name) VALUES ("name")'

```

# 5. Clean up

```

./cleanup.sh

```