We have evidence agents have been collecting data since 2009, yet one can only view the last 3 months of data. The storage-config.xml file is default 100 years for generation 3 and when I grep for ‘generation’ in the Foglight Management Server (FMS) logs, I only see generation 0 roll-ups.
Software bug in 5.5.0 release. The software problem report FGL-8927 "Rollup of data in the last generation can cause data to be discarded" was identified when rolling up data in the long term generation, the server is only processing retention polices that have a purge period. This means that observations that are associated with retention policies that do not purge data will end up being discarded during the rollup.
STATUS: FGL-8927 was fixed in version 5.5.2. Updating to 5.5.2 release or higher will resolve for new data being collected. The older purged data is gone due to bug noted in FGL-8927.