Bug ID 1388621: Database monitor with no password marks pool member down

Last Modified: Jun 21, 2024

Affected Product(s):
BIG-IP DNS, GTM, LTM(all modules)

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 14.1.5.4, 14.1.5.6, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3

Opened: Oct 25, 2023

Severity: 3-Major

Symptoms

If an LTM or GTM database monitor is configured with a username to log in to the database, but without a password, pool members monitored by that monitor will be marked Down. When this issue occurs, an error message similar to the following (for a postgresql monitor in this example) will appear in the DBDaemon log file (/var/log/DBDaemon-*.log): [MonitorWorker-###] - incomplete parameters: m_connectStr:'jdbc:postgresql://###.###.###.###:##/postgres' m_user:'*********' m_password:'null' max_use:'#' m_inst_id:'******' The "incomplete parameters" and "m_password:'null'" items are the relevant parts of this error message.

Impact

Pool members monitored by a database monitor, the configured will be marked Down.

Conditions

This may occur under the following conditions: -- LTM or GTM pool members are configured to use a database monitor, such as: -- mssql -- mysql -- oracle -- postgresql -- The monitor is configured with a username, but no password -- And this configuration is otherwise valid: The username is a configured in the target database with no password, and no password is required by the database for authentication of that user. -- The version of BIG-IP, or BIG-IP Engineering Hotfix, which includes a fix for Bug ID1025089.

Workaround

Following is workaround for this issue: -- Configure the database user with a password, and require password authentication for the user -- Configure the database monitor with the correct password for the configured username

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips