Since today I get "Monitor Failure!" "This monitor cannot be displayed due to an unrecoverable error" for most of the queries (chart queries) in my dashboards.
Any ideas what could be the cause of this and how to resolve this?
Please take a look at the orion.log and perhaps the epoapserver.log on the ePO server at the time of the error.
This may give some indications of the actual errors involved.
I found the reason.
The server had no more free diskspace.
The cause is the following directory
c:\Program Files\McAfee\ePolicy Orchestrator\DB\RepoCache\Current\VSCANDAT1000\DAT\0000\
This contains all the old versions of dat files (+8GB).
Shouldn't they be cleaned up automatically?
what could be the reason for that?
Yes they should be deleted.
That sounds like issue #14 resolved in ePO 4.5 Patch 1.
Issue: The Agent Handler Repository cache grew continuously. (Reference: 512678)
Resolution: The Repository cache now purges obsolete content.
Covered in more detail in Knowledge Base article KB67585.