Peak CPU Utilization Measurements Regularly Hit 100% For OAM Servers
Last updated on DECEMBER 15, 2016
Applies to:Oracle Communications Diameter Signaling Router (DSR) - Version DSR 5.0 and later
Information in this document applies to any platform.
OAM.SYSTEM MeasArrayed reports often show in the System.CPU_CoreUtilPct_Peak value hitting 100% for one or more Index entries (CPU Core number) on Operation, Administration, and Maintenance (OAM) servers, often appearing at regular intervals.
OAM.SYSTEM MeasSimple reports will show System.CPU_UtilPct_Peak values high, often above 80% at regular intervals.
No EventID 31215 'Process Resources Exceeded' or other utilization related alarms in the Alarm and Event reports are typically observed.
On the OAM server via command line, 'top -M -n 5' (will produce 5 samples over about 10s) command output shows Imysqld as a leading CPU consumer, often above 150%.
Possible changes include: Feature activation; Software upgrade; Implementation of a kpi or report monitoring strategy. Often the condition is noticed well after the change was made, since it mainly manifests in OAM.SYSTEM measurement reporting.
Sign In with your My Oracle Support account
Don't have a My Oracle Support account? Click to get started
My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms