Multi-zone deployment

This topic describes how to deploy an OceanBase Cloud Platform (OCP) cluster in multi-zone mode.

Deployment in multi-zone mode

1. Check if the obcluster.conf file exists in the /root/t-oceanbase-antman/ directory.

   • If yes, directly go to Step 4.

   • Otherwise, proceed to the next step.

2. Log on to the OCP-Server as the root user and run the following commands:

   [root@hostname /]# cd /root/t-oceanbase-antman/
   [root@hostname clonescripts]# bash init_obcluster_conf.sh
   

3. During mode selection, enter 3 for multi-node deployment.

   The system will then generate the corresponding configuration file template.

   Example:

   ##################  OCP multi-zone configurations  ###################### 
   OCP_MAZ_ENABLED=TRUE                                 #If multi-zone mode is enabled and no global virtual IP address (VIP) is available, the configured OCP_VIP and OBPROXY_VIP can be changed to the VIP of the primary zone or the IP address of any OCP node.
   OCP_MAZ_AZ_NAME_LIST=(az1 az1 az2)                #The zone names that you specified for az_name for OCP 1, OCP 2, and OCP 3.
   OCP_MAZ_OCP_VIP_LIST=(192.168.0.1 192.168.0.2 192.168.0.3)   #The IP addresses that you specified for site-url for OCP 1, OCP 2, and OCP 3.
   OCP_MAZ_OCP_VPORT_LIST=(8080 8080 8080)      #The port numbers that you specified for site-url for OCP 1, OCP 2, and OCP 3.
   OCP_MAZ_METAPROXY_VIP_LIST=(192.168.0.1 192.168.0.2 192.168.0.3)  #The IP addresses of OCP 1, OCP 2, and OCP 3 for accessing the MetaDB.
   OCP_MAZ_METAPROXY_VPORT_LIST=(2883 2883 2883)         #The port numbers of OCP 1, OCP 2, and OCP 3 for accessing the MetaDB.
   

4. When you deploy OCP in multi-zone mode, refer to the "OCP multi-zone configurations" paragraph of the preceding example..

   The following information needs to be modified:

• OCP_MAZ_ENABLED: specifies whether to enable the multi-zone mode. Default value: FALSE. Set the value to TRUE when you need to enable the multi-zone mode.

• OCP_MAZ_AZ_NAME_LIST: specifies the zone names of the OCP nodes. For example, (az1 az2 az3). The zone names of different OCP nodes can be the same. For example, (az1 az1 az2).

• OCP_MAZ_OCP_VIP_LIST: specifies the server addresses of the OCP nodes, namely, the host part of SiteUrl. For example, (10.1.1.1 10.1.1.2 10.1.1.3).

• OCP_MAZ_OCP_VPORT_LIST: specifies the server ports of the OCP nodes, namely, the part of SiteUrl for the port. For example, (80 80 80).

• OCP_MAZ_METAPROXY_VIP_LIST: specifies the IP addresses of the MetaDB for the OCP nodes to access it.

• OCP_MAZ_METAPROXY_VPORT_LIST: specifies the port numbers of the MetaDB for the OCP nodes to access it.