(Affected Software Releases: 6.7.1185+, 6.8.1148+, 6.9.128+, and 7.0.1307+)
If you are monitoring Memory_Free on your CoPilot for Gateways and/or the Controller, have started to receive CoPilot notifications for Memory_Free, and are running one of the Software Releases above it may be due to a recent change.
The system metric Memory Free (memory_free) used in CoPilot for configuring alerts was using a definition that was inconsistent with the operating system (OS) definition. Starting in the above releases the metrics memory_available and memory_free are now consistent with the OS definition.
Because of this change, after upgrading your Controller you may receive many Memory Free alerts indicating that memory free has dropped. To mitigate this issue, please change your alert configurations from using mem_free to using memory_available instead.
If the alerts persist after making the change, please open a ticket with Support.