Last Modified: Feb 07, 2024
Affected Product(s):
BIG-IP DNS, GTM
Known Affected Versions:
11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1, 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, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 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, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3
Fixed In:
17.0.0, 16.1.3.1, 15.1.6.1, 14.1.5.1
Opened: Jan 04, 2022 Severity: 3-Major
When two or more GTM database monitors (MSSQL, MySQL, PostgreSQL, and Oracle) with identical 'send' and 'recv' strings are configured and applied to different GTM pools (with at least one pool member in each), the monitor status of some GTM pool members may not be updated accurately. Other parameters of the affected monitors that differ (such as 'recv row' or 'recv column' indicating where the specified 'recv' string should be found in the result set) may cause GTM pool members using one of the affected monitors to connect to the same database to be marked UP, while GTM pool members using another affected monitor may be marked DOWN. As a result of this issue, GTM pool members that should be marked UP or DOWN by the configured GTM monitor may instead be marked according to another affected monitor's configuration, resulting in the affected GTM pool members being intermittently marked with an incorrect state. After the next monitor ping interval, affected GTM pool members members may be marked with the correct state.
Monitored GTM pool members using a database monitor (MSSQL, MySQL, PostgreSQL, and Oracle) randomly go offline/online.
This may occur when multiple GTM database monitors (MSSQL, MySQL, PostgreSQL, and Oracle) are configured with identical 'send' and 'recv' parameters, and applied to different pools/members which share the same IP address and Port values. For example: gtm monitor mysql mysql_monitor1 { ... recv none send "select version();" ... } gtm monitor mysql mysql_monitor2 { ... recv none send "select version();" ... }
To avoid this issue, configure each GTM database monitor with values that make the combined parameters unique by changing either the 'send' or the 'recv' parameters, or both. For example: gtm monitor mysql mysql_monitor1 { ... recv none send "select version();" ... } gtm monitor mysql mysql_monitor2 { ... recv 5.7 send "select version();" ... }
The system updates GTM pool members correctly when multiple identical database monitors are configured.