OceanBase Deployer

OceanBase Deployer (OBD) is an installation and deployment tool for open-source OceanBase software. It is also a package manager for managing all open-source OceanBase software. This topic describes how to install OBD, how to use OBD, and OBD commands.

Install OBD

You can install OBD by using these methods:

Method 1: Install OBD by using RPM packages (only for CentOS 7 or later)

sudo yum install -y yum-utils
sudo yum-config-manager --add-repo https://mirrors.aliyun.com/oceanbase/OceanBase.repo
sudo yum install -y ob-deploy
source /etc/profile.d/obd.sh

Method 2: Install OBD by using the source code

Before you install OBD by using the source code, make sure that you have installed these dependencies:

• gcc
• wget
• python-devel
• openssl-devel
• xz-devel
• mysql-devel

To install OBD on Python3.8, run these commands:

pip install -r requirements3.txt
sh build.sh build_obd
source /etc/profile.d/obd.sh

Start an OceanBase cluster

After you deploy OceanBase Deployer (OBD), you can run the obd demo command to deploy and start OceanBase Database on a single local server. Make sure the following prerequisites are met:

• Ports 2881 and 2882 are not occupied.

• At least 6 GB of memory is available on the server.

• At least two CPU cores are available on the server.

• At least 54 GB of disk space is available on the server.

Note

If the foregoing prerequisites are not met, see Use OBD to start an OceanBase cluster.

# Deploy and start OceanBase Database.
obd demo
# Run the following command to connect to OceanBase Database by using the OBClient:
obclient -h127.0.0.1 -uroot -P2881

Use OBD to start an OceanBase cluster

If you want to know how to use OBD to start an OceanBase cluster, please see Use OBD to start an OceanBase cluster.

Other OBD commands

OBD provides multiple-level commands. You can use the-h/--help option to view the help information of sub-commands.

• Mirror and repository commands
• Cluster commands
• Testing commands

Q&A

Q: How can I specify the version of a component?

A: You can add the version declaration to the deployment configuration file. For example, you can specify the version of OceanBase-CE V3.1.0 in the deployment configuration file in the following format:

oceanbase-ce:
  version: 3.1.0

Q: How can I use a component of a specific version?

A: You can add the package_hash or tag declaration to the deployment configuration file. For example, if you have tagged your compiled OceanBase-CE, you can specify it by tag. For example:

oceanbase-ce:
  tag: my-oceanbase

You can also use package_hash to specify a specific version. When you run an obd mirror command, OBD will return an MD5 value of the component. The MD5 value is the value of package_hash.

oceanbase-ce:
  package_hash: 929df53459404d9b0c1f945e7e23ea4b89972069

Q: How can I modify the startup process after I modify the code of OceanBase-CE?

A: You can modify the startup plug-ins in the ~/.obd/plugins/oceanbase-ce/ directory. For example, after you add a new startup configuration item for OceanBase-CE V3.1.0, you can modify the start.py file in the ~/.obd/plugins/oceanbase-ce/3.1.0 directory.

Q：How to update OBD?

A：You can use the obd update command to update OBD. When you are done with the update, use the obd --version command to confirm the version of OBD.

Protocol

OBD complies with GPL-3.0.