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Playbook

I see an incorrect credential error with the pglogical user when setting up replication. What do I do?

It is very possible you have multiple people using the pgbelt tool to set up replication. The config's pglogical password may be differnt in each person's config, and that is used during the setup stage. The password from the config is used to create the pglogical role in your databases.

Therefore, the first person to run setup has set the pglogical user's password in the databases. The error likely comes from pglogical mentioning a node configuration, where the password is set.

For information on nodes in the pglogical plugin, please see the Extended Knowledge document in this repository.

To remedy this issue, you can perform the following:

  1. If you see the error with the entire DSN (including password and IP address or hostname), identify if the host is the source or destination database.
  2. Once identified, run the following to PSQL into that host: psql "$(belt <src/dst>-dsn <datacenter-name> <database-name>)"
  3. In that PSQL terminal, run the following to set the password according to the node configuration: ALTER ROLE pglogical PASSWORD '<password-you-saw>';