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Enterprise Postgres 16 Operation Guide

10.1 Creating a Standby Instance

Follow the procedure below to create a standby instance.

  1. In the [Instances] tab, select the instance from which a standby instance is to be created.

  2. Click .

  3. Enter the information for the standby instance to be created.

    • [Location]: Whether to create the instance in the server that the current user is logged in to, or in a remote server. The default is "Local", which will create the instance in the server machine where WebAdmin is currently running.

    • [Replication credential]: The user name and password required for the standby instance to connect to the master instance. The user name and password can be entered or selected from the Wallet. Refer to "Appendix I WebAdmin Wallet" for information on creating wallet entries.

    • [Instance name]: Name of the standby database instance to create.

      The name must meet the conditions below:

      • Maximum of 16 characters

      • The first character must be an ASCII alphabetic character

      • The other characters must be ASCII alphanumeric characters

    • [Instance port]: Port number of the standby database instance.

    • [Host IP address]: The IP address of the server machine where the standby instance is to be created. This information is needed to configure the standby instance to be connected to the master.

    • [Data storage path]: Directory where the database data will be stored

    • [Backup storage path]: Directory where the database backup will be stored

    • [Transaction log path]: Directory where the transaction log will be stored

    • [Encoding]: Database encoding system

    • [Replication mode]: Replication mode of the standby instance to be created ("Asynchronous" or "Synchronous")

    • [Application name]: The reference name of the standby instance used to identify it to the master instance.

      The name must meet the conditions below:

      • Maximum of 16 characters

      • The first character must be an ASCII alphabetic character

      • The other characters must be ASCII alphanumeric characters

  4. Click to create the standby instance.


If using WebAdmin to manage Mirroring Controller, the message below may be output to the server log or system log in the standby instance. No action is required, as the instance is running normally.

ERROR:  pgx_rcvall failed
ERROR:  pgx_rcvall: backup of the database has not yet been performed, or an incorrect backup storage directory was specified