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https://github.com/gites/k8s-mysql-group-replication
PoC for setting up MySQL Group Replication on Kubernetes
https://github.com/gites/k8s-mysql-group-replication
k8s kubernetes mysql-replication poc statefulsets
Last synced: 29 days ago
JSON representation
PoC for setting up MySQL Group Replication on Kubernetes
- Host: GitHub
- URL: https://github.com/gites/k8s-mysql-group-replication
- Owner: gites
- License: apache-2.0
- Created: 2017-12-28T10:33:20.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2018-11-22T13:49:39.000Z (over 5 years ago)
- Last Synced: 2024-04-21T00:56:16.150Z (3 months ago)
- Topics: k8s, kubernetes, mysql-replication, poc, statefulsets
- Size: 15.6 KB
- Stars: 22
- Watchers: 2
- Forks: 23
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Lists
- awesome-stars - k8s-mysql-group-replication
README
# This repo is DEPRECATED
Please use official MySQL operator instead --> https://github.com/oracle/mysql-operator
# k8s-mysql-group-replication
PoC for setting up MySQL Group Replication in Master-Master mode on Kubernetes
This work is based on K8s Statefull Sets documentation [https://kubernetes.io/docs/tasks/run-application/run-replicated-stateful-application/]
# Requirements
- PersistentVolume provisioner with a default StorageClass (or statically provisioned PersistentVolumes)
- Kubernetes Cluster v 1.9 (StatefulSets are stable (GA) in 1.9)
# Deployment and scaling
```
# kubectl apply -f *.yaml
# kubectl get pods
NAME READY STATUS RESTARTS AGE
mysql-0 2/2 Running 0 10s
```
```
# kubectl scale statefulset --replicas=3 mysql
# kubectl get pods
NAME READY STATUS RESTARTS AGE
mysql-0 2/2 Running 0 10m
mysql-1 2/2 Running 0 5md
mysql-2 0/2 Pending 0 14s
```
```
# kubectl -n mysql-test exec -ti mysql-0 mysql -- mysql -e'select * from performance_schema.replication_group_members;'
Defaulting container name to mysql.
Use 'kubectl describe pod/mysql-0 -n mysql-test' to see all of the containers in this pod.
+---------------------------+--------------------------------------+---------------+-------------+--------------+
| CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
+---------------------------+--------------------------------------+---------------+-------------+--------------+
| group_replication_applier | 14d265ce-e714-11e7-83eb-2a28a3915e90 | mysql-0.mysql | 3306 | ONLINE |
| group_replication_applier | 331149cf-e714-11e7-999d-ea83a38cf6a7 | mysql-1.mysql | 3306 | ONLINE |
| group_replication_applier | c9d9f4a8-ebd1-11e7-afe2-0e373b025b47 | mysql-2.mysql | 3306 | ONLINE |
+---------------------------+--------------------------------------+---------------+-------------+--------------+
```
# Future work
- scripts cleanup
- integrate with ProxySQL