Default Parameters for PgRtoTest

In a high availability setup where the target database server is a replica server, this test reports the Recovery Time Objective i.e., replication lag duration (the time lag between the master and the replica server). Using this test, administrators can gain a fair knowledge on how long they can manage their business post a disaster/crash of the replica server.

This page depicts the default parameters that need to be configured for the PgRtoTest.

• The TEST PERIOD list box helps the user to decide how often this test needs to be executed.

• In order to monitor a PostgreSQL server, you need to manually create a special database user account in every PostgreSQL database instance that requires monitoring. When doing so, ensure that this user is vested with the superuser privileges. The sample script we recommend for user creation for eG monitoring is:

  CREATE ROLE eguser LOGIN

  ENCRYPTED PASSWORD {‘eguser password’}

  SUPERUSER NOINHERIT NOCREATEDB NOCREATEROLE;

  Specify the name of this user in the USERNAME text box.

• Specify the password in the PASSWORD text box, associated with the above USERNAME (can be ‘NULL’). Here, ‘NULL’ means that the user does not have any password.

• Confirm the Password (if any) by retyping it in CONFIRM PASSWORD text box.

• In the DB NAME text box, specify the name of the database to connect to. The default is “postgres”.

• If the PostgreSQL server being monitored is an SSL-enabled server, then set the SSL flag to Yes. If not, then set the SSL flag to No.

• Once the necessary values have been provided, clicking on the UPDATE button will register the changes made.

When changing default configurations of tests, the values with “$” indicate variables that will be replaced by the eG system according to the specific server being managed - for instance, $hostName is the host/nickname of the target host, $port is the port number of the server being monitored. E.g., for a server xyz:80, $hostName will be changed automatically by the eG manager to “xyz*” and $port will be changed to “80” when configuring a test.