OceanBase-ce cluster
In some cases, there is no root user password, or the old machine reuses.
Can be deployed in docker on the machine
0. Machine preparation
During the test, I prepared three machines and installed docker-ce
yum -y install docker-ce
Notes:
- root user password: admin
- admin user password: admin
1. Pull down from dockerhub
zibuyu886 is my dockerhub account, which is in the original centos7
oceanbase-ce deployed in docker image. Refer to another article:Deploy OceanBase-ce
Of course, you can also use the official image provided
docker pull zibuyu886/oceanbase-ce-cluster
2. Run up
docker run -dit --net=host --privileged=true --name obce01 /zibuyu886/oceanbase-ce-cluster:latest /usr/sbin/init
/usr/sbin/init You can use the systemctl method after starting the container
-privileged=true Get host root permissions (special permissions-)
The biggest essential difference between su command and su - command is:
The former just switches the root identity, but the shell environment is still the shell of ordinary users;
The latter switches to root identity with the user and the shell environment.
If not added--privileged=trueThe sshd service may not be started due to permission issues.
All three machines must be run.
3. Modify the configuration file
Enter docker
docker exec -it obce01 bash
The configuration file is in/etc/, you can view and modify the configuration.
Pay attention to modifying the IP address and the corresponding passwords, and also creating the data directory.
mkdir -p /data/data mkdir -p /data/redo
4. Start deploy
- -c Specify configuration file
- -v Show detailed information about deployment steps
obd cluster deploy obcluster -c /etc/ -v
5. start ob service
obd cluster start obcluster
6. Use obclient to connect to the database
obclient -h127.0.0.1 -P 2883 -uroot@sys#obcluster -p'your passwor' -Doceanbase -A
Summarize
The above is personal experience. I hope you can give you a reference and I hope you can support me more.