Last Modified: Nov 22, 2021
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Known Affected Versions:
10.1.0, 10.2.0, 10.2.1, 10.2.2, 10.2.3, 10.2.4, 11.0.0, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1
Opened: Aug 26, 2013
Related Article: K14694
The result of the iRule command "active_members <pool>" differs from the length of the list returned by "active_members -list <pool>".
Potential confusion about how many pool members are really "active".
Priority groups must be configured on the pool along with min-active-members, and enough members must be available in the higher priority group to avoid load-balancing to at least some of the lower-priority groups.
The correct number of truly active pool members can be determined by looking at the size of the list returned with the -list option: set active [llength [active_members -list <pool_name>]]
The return value of the iRule "active_members" command now matches the length of the list returned by the "active_members -list" command, whether or not priority groups with minimum active members is configured on the pool.