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The first time you launch the Supervisor, you should initialize the cluster. To do this, do the following:

1. Select the Server's IP address from the list and click NEXT.
   

2. Add the required Servers to the cluster. To do this, enter the IP address and click LINK.
   

   Note
   title Attention!
   All Cluster Servers must be accessible to each other. All Servers must be hosted on computers It is necessary to use Servers with the same architecture (x64), OS type and PostgreSQL version.

   
   

   Note
   title Attention!
   The first three Servers added become the master Servers. The operation of the cluster is coordinated by its master Servers, which, in particular, take decisions to migrate nodes from one Server to another. You can have 3 or The number of the master Servers in the cluster must be odd, not less than three and not more than five. If only two Servers are added, they can be configured as 1+1 (—primary + backup Server (see 1+1 cluster configuration).

   
   

3. If required, you can add a user with administrator rights (see Set up access to a supervisor). After the cluster is created, only this user will have access to the supervisor. Please follow Do the steps belowfollowing:

   1. Click the Add button.
      

   2. Enter access credentials and click the NEXT button.

4. After you added all Servers, click the INITIALIZE button.

   
   
   

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1. On the HOSTS tab, click .
2. Enter the IP address of the Server.
   

3. If the Server you are adding is master, select set the Manager checkbox.

4. Click ADD HOST.
5. Add all required Servers.
   

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